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Sharp VT-3418X, Service Manual, Page: 14 / 170

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Sharp VT-3418X Service Manual Download Page 14

Take-up pole

FUNCTION OF MAJOR

MECHANICAL PARTS 

 

 Head Cleaner) 

Drum 

Full erase head 

Supply pole base 

Tension arm 

base 

   

I

 

 

 

 

Dew sensor

Brake shifter 

 

Loading motor

Master cam

Pinch roller lever 

Relay shifter lever

Capstan     motor

Reverse guide

 Take-up reel disk

Video
lever

search brake

Back tension lever

Main supply brake

No.

Function

No.

Function

Full erase head 
Erase the whole records on the tape in the recording
mode.

Tension arm 

Detects the tension of tape while running, and brakes

the supply reel disk via the tension band.

Reverse guide

Pulls 

out the tape in the video search rewind mode,

and controls the tape drive train height with the upper
and lower guides.

Relay shifter lever
Transmits the operation of the master cam to the

brake shifter, and operates the reverse guide.

Brake shifter

 the position of brake or the like in accordance with

Pinch roller lever 
Press-fits the tape to the capstan during tape running.

the modes such as stop and playback.

The right protrusion switches the clutch of the cassette

housing control assembly in “tape eject”, and makes

Back tension lever

the mechanism eject the tape.

Brakes the supply reel disk to a certain degree to .

  p r e v e n t   t a p e   s l a c k e n i n g   d u r i n g   “ h a l f - l o a d i n g ” ,

Master cam

“loading” and “shifting from playback to video search

Turns clockwise during loading, and counterclockwise

rewind”.

during unloading, and moves the shifter or the like in
accordance with each mode.

Main supply brake lever
Brakes the supply reel disk to prevent tape slackening

Loading motor

when the unit is stopped in fast forward or rewind

A motive power which drives the mechanism. It
transmits the power to the master cam and cassette

mode.

housing control assembly via the belt.

Main take-up brake lever

Cam switch

Brakes the take-up reel disk to prevent tape slackening

Rotates synchronously with the master cam, and

when the unit is stopped in fast forward or rewind

detects the position of each mode by means of the

mode.

internal switch.

Video search brake lever

Dew sensor

It is in contact with the take-up reel disk normally, and

An element which detects condensation inside the

brakes it to a certain degree. It applies larger brake in

unit. This element is activated, when it senses

the video search rewind mode.

condensation, to interrupt the mechanism.

Summary of Contents for VT-3418X

Page 1: ...ontrol n Automatic Playback Function n AHC Automatic Head Cleaning System I CONTENTS Page Page SPECIFICATIONS 2 l OVERALL SCHEMATIC DIAGRAM 65 l IMPORTANT SERVICE NOTES 3 l CHASSIS LAYOUT OF TV SECTION 69 l LOCATION OF USER S CONTROL 4 l BLOCK DIAGRAM OF TV SECTION 73 DISASSEMBLY AND REASSEMBLY 7 DESCRIPTION OF TV SECTION ADJUSTMENT OF THE SCHEMATIC DIAGRAM 82 TV ELECTRICAL CIRCUITRY 8 CHASSIS LAY...

Page 2: ...33 54 cm Diagonal Measurement VT 51 18X 50 8 cm Diagonal Measurement VT 3418X 22 0 kV at 800 Beam Current VT 5118X 25 0 kV at 1100 fi Beam Current VT 3418X 1 5 W at Max 8 cm Round Dynamic x 2 PCS VT 51 18X 1 5 W at Max 8 cm Round Dynamic x 2 PCS Type VT 3418X VB370BVBKl U S Tint Tube VT 5118X VB51JFCGlX E2 TintTube Heater VT 3418X 6 3 V 300 mA VT 5118X 6 3 V 680 mA Focus High Bi Potential Electrol...

Page 3: ...for the set VT 5118X When repairing the circuit be sure not to increase the high voltage to more than 29 3 kV at beam 0 for the set 2 VT 3418X To keep the set in a normal operation be sure to make it function on 22 0 kV 1 5 kV 2 0 kV at beam 800 in the case of the set The set has been factory Adjusted to the above mentioned high voltage VT 5118X To keep the set in a normal operation be sure to mak...

Page 4: ...ME UP DOWN BlJlTONS CHANNEL UP DOWN BUlTONS CONTROL PANEL INSIDE THE COVER VIDEO AUDIO POWER BUTTON I SENSOR AREA FOR REMOTE CONTROL VT 341 8X o I I p q I o v JL POWER CORD MAIN POWER SWITCH 0 I ANTENNA IN TERMINAL _1 AUDIO OUT TERMINAL VIDE OUT TERMINAL VT 51 18X P WER CORD MAIN POWER SWITCH 0 I ANTENNA IN TERMINAL I AUDIO OUT TERMINAL VIDEO OUT TERMINAL 4 ...

Page 5: ...move any old bat teries that may be in the remote control Insert new batteries and match their polarities and with the markings inside the compart ment Replace the cover Location of Controls POWER ON OFF button 0 I EJECT LOAD button I S H A R P VIDEO TV C COCK r CHANNEL SELECT buttons 666 686 I DISPLAY button DPSS O I SLOW 0 buttons SP LP EP button REC button REW Reverse Video Search button TIMER ...

Page 6: ...s off the rear cover VT 51 18X Remove the nine screws off the rear cover 2 Disconnect the F and G connectors from the main PWB 3 Remove the screws off the video unit and take out the unit 4 Remove the two screws from the main PWB and separate the PWB from the video unit VT 341 8X rr VT 51 18X 6 ...

Page 7: ... and LA LED unit Connect the cable QCNW 3780CEZZ between the AL plug and the AL socket Extension cable QCNW 3780CEZZ Extension cable QCNW 3778CEZZ 5 Remove the CRT PWB degaussing coil connector G and front power switch remote control PWB Place the main PWB upright 6 Reconnect the CRT PWB Put the main PWB and the VCR unit together as shown below Keep the front power switch remote control PWB speake...

Page 8: ...g control A and v keys 4 Set the Screen control at MIN O l 0 position 5 Turn on 51401 Service switch at the horizontal line position 6 Connect the oscilloscope to TP852 Red Cathode 2 Sub Contrast Adjustment I Adjusting Point I 0 R421 Sub Contrast control Note Prior to this adjustment warm up the unit with the beam current of more than 600 VT 3418X I 7004 W 51 18X for more than 30 minutes 1 Receive...

Page 9: ...1 Receive SECAM COLOUR BAR signal with colour bar generator 2 Connect oscilloscope to TP1801 with the following settings l Range 0 05V div AC l Sweep Time 20psec div l Probe l l 0 3OpF 1 OMQ or more 1 Adjust the Sub Contrast control so that the beam current becomes 0 8 mA VT 3418X 1 l mA VT 5118X rough adjustment 2 Adjust the Green Drive control and Blue Drive control so that the colour temperatur...

Page 10: ...2 kSZ To oscilloscope TP853 K Resistance Matrix 3 Set the Service switch 51401 at the Video Cut position to cut off the Y signal 7 SECAM Killer Adjustment r Adjusting Point 0 11803 SECAM Killer control 1 Receive SECAM COLOUR BAR signal with colour bar generator 2 Connect oscilloscope to TP1802 with the lY following settings l Renge lV div DC Adjust vertical position proper l Sweep Time 20psec div ...

Page 11: ...nit of the set l Renge lV div DC l Sweep Time 20psec div 3 Set service switch 51401 at the Video Cut position to cut off the Y signal 4 Set both the Contrast and Brightness controls to their maximum postions 1 Adjust T1804 R Y and T1805 B Y so that DC output level with colour control set at minimum will be the same as that with colour control set at 100 of saturation A B Connect capacitor 0 001 xF...

Page 12: ... relation Adjusting Point Cl RI 602 Horizontal Center control Note This adjustment should be performed after ofA B the purity and convergence adjustments I 1 Receive MONOSCOPE PATTERN signal A l B 4 I I 3 Vertical Linearity Adjustment l During the adjustment keep the unit facing the east Adjusting Point Cl R526 Vertical Linearity control 1 Receive MONOSCOPE PATTERN signal 1 Adjust R526 so that the...

Page 13: ...waveform on the oscilloscope Adjust VROOl AGC control in the IF pack until the noise disappears from the oscilloscope screen and the waveform nearly comes into sync Just before shrinking Figure 1 Measuring Oscilloscope instrument Signal generator Mode I EE Input signal PIF frequency uniwave Colour bar signal 70 dBp Test point I TP201 GND TP201 Video Output Adjusting point I TOO2 AFT coil S p e c i...

Page 14: ...ion switches the clutch of the cassette housing control assembly in tape eject and makes 5 Back tension lever the mechanism eject the tape Brakes the supply reel disk to a certain degree to prevent tape slackening during half loading 17 Master cam loading and shifting from playback to video search Turns clockwise during loading and counterclockwise rewind during unloading and moves the shifter or ...

Page 15: ...te affixed to the bottom side of the reel disk and detects the rotation of the reel disk through receiving the reflected light 9 Take up loading gear Shifts the take up pole base and guide roller via the loading relay gear and applies the tape around the durm assembly as well as transmits the power to the supply loading gear 5 6 Brake solenoid Adsorbs and holds the brake shifter in the fast forwar...

Page 16: ...gs are used for checking and adjusting the reel disk height A C Head Tilt Adjusting Jig These Jigs are used for checking and 6 Cassette Torque Meter JiGVHT 063 CZ for checking and adjusting the torque of take up for measuring Tension Gauge 3009 JiGSG0300 BF There are two gauges used for the 7 tension measurements 300 g and Tension Gauge 2 Okg JiGSG2000 BS w 2 0 kg Hex Wrench 0 9mm JiGHW0009 AE The...

Page 17: ...te J i G D R i V E R BM This Jig is used for adjusting the Adjusting Jig tension band and tension plate 14 Torque Driver JiGTDl200 CB This is used to screw down resin made parts the specified torque is 5 kg This Jig is used for height JiGDRiVER 10 7 A S adjustment of the A C head and X position 15 Box Driver JiGDRiVER 1O 4 AV This Jig is used for height 0 adjustment of the retaining guide 16 Rever...

Page 18: ...pe running uneven color Pinch roller q Cl q 0 No tape running tape slack No tape running tape slack no Reel belt cl 0 Clean rubber and rubber fast forward rewind motion contact area with the specified cleaning liquid Loading belt q 0 Cassette not loaded or unloaded Cassette loading belt cl 0 Tension band ass y 0 Lateral image swing Loading Motor 0 Cassette not loaded or unloaded Replace the roller...

Page 19: ...ction If it is not rotated the reel sensor works to shift the mechanism to the eject mode When the belt is detached tuck it as in the figure so that it is kept free w n from grease 49 4 When the stop button is pressed the mechanism does not stop at a normal stop position It shifts to the eject mode and stops When the stop button is pressed in the playback video search rewind and video search forwa...

Page 20: ...m bracket Note The worm shaft bearing can easily come out of position So be careful not to lose it Worm bracket LWorm wheel ass y Figure l 5 Remove the worm shaft assembly pulley and cassette loading belt all from the cassette housing frame R Worm shaft a Cassette housing frame R Figure l 6 20 the L side Slider Cassette housing frame R L side Figure l 8 Reassembly Turn the phase gear clockwise unt...

Page 21: ...connector to the start sensor PWB Cassette housing frame R shaft bear REASSEMBLY OF DRIVE GEAR rPillar Worm wheel square hole I Drive gear spring R 0 LReciprocating spring ing 4 Drive gear arm 1Drive gear arm Worm wheel ass y Figure l 1 0 4 Attach the worm bracket to the worm shaft assembly Place them onto the boss on the cassette housing frame R Note Insert 0 before screwing into Q and 0 1 Casset...

Page 22: ...ity of the clutch lock lever are engaged Finally be sure that the relationship between the clutch lever and the clutch as well as between the clutch and the pulley are correct as in the Figure l 1 5 0 Resetting Check that the clutch is engaged with the pulley through the coupling Figure l l 5 Take the following steps to reset the clutch if it is unlocked or if the switch lever and the clutch lock ...

Page 23: ...se lever to the slider holder 00 3 Slide the slider holder R downward so that the two catches of the slider holder R fit the opening of the slider 4 Slightly widen the cassette housing frames and set the pins of slider holders R and L into the grooves of the cassette housing frames Note Check if the pins of the slider holders R and L fit the grooves of the cassette housing frames and if the drive ...

Page 24: ...the tension band is pressed in the direction of the arrow for removal the catch is hard to be deformed b Figure l 20 0 1 2 3 0 1 2 3 4 5 Removal Take up reel disk Unscrew the screw and remove the take up reel retainer Release the take up reel disk catch 0 Pull the take up reel disk upward Take up reel disk e up reel retainer Figure l 21 Reassembly Supply reel disk Clean the reel disk shaft 0 and a...

Page 25: ... brake torque see page 30 l Height checking and adjustment Note Place the master plane onto the mechanism unit taking care not to hit the drum see Figure l 24 Setting Set the master plane releasing the reverse guide by a finger Master guide Figure l 25 1 For height adjustment press the reel disk with a finger and turn it right and left with a screwdriver see Figure 1 26 a 2 Check that the reel dis...

Page 26: ...Hold down the torque gauge so that it may not fly off 2 When checking the take up torque do not keep the reel disk locked for a longer time CHECKING AND ADJUSTMENT OF TAKE UP TORQUE IN REWIND MODE l Remove the cassette housing control assembly l Setting Torque gauge Set the scale to 0 Figure l 29 l Checking Turn the torque gauge slowly one rotation every 2 to 3 seconds by hand in the take up direc...

Page 27: ... check that the torque is within the set value 170 f 40gcm I7 Figure l 31 l Checking 1 Check that the torque is in the range of 95 2 30 g cm 2 The torque fluctuates due to the rotational deviation of the reel drive unit Use the center of the fluctuation as the value 3 Place the unit in the EP record mode and check that the take up torque is within the range l Adjustment If the take up torque in th...

Page 28: ...ly on the supply reel that the torque is within the set value 45 5 2Ogcm disk If the torque gauge is not securely set on the reel disk measurement will be incorrect Figure l 35 Take up reel disk Note CHECKING THE REWIND BACK TENSION l Remo ve the cassette housing control assembly l Check ing Place the unit in the rewind mode Take up reel disk Place the torque gauge on the take up reel disk and tur...

Page 29: ...is aligned with the supply impedance roller s center by sight 3 Check that the end of the tape is neither curled against the flange of the supply impedance roller nor over it 4 During the video search rewind mode with no cassette tape in place check that the supply reel disk is free from the tension band l Position adjustment record mode When the tension pole is at the right of the supply impedanc...

Page 30: ... of the tension spring hook plate toward the hole B Note Put a thin screw driver in the shaft hole lean it toward you and turn it for easier shift of the tension spring hook plate in the direction of A or B cf Tension spring Tension spring Tension spring hook plate Tension spring hook plate Figure l 41 CHECKING THE BRAKE TORQUE l Checking the brake torque at the supply side Torque gauge ysply reel...

Page 31: ... 0 1 2 wchanism chassis Figure l 43 Remove the cassette housing control assembly Slowly rotate the torque gauge in the clockwise CW direction and counterclockwise CCW direction of the take up brake so that the reel disk and the indicator of the torque gauge rotate at an equal rate Check that the values are within the range of CCW direction 250 to 750 gem CW direction 90 to 130 g cm and that the br...

Page 32: ... your finger with alcohol 2 Take care that the azimuth spring does not fly off when removing the A C head screw n 4 Pay attention to PWB Figure l 45 l Replacement 1 Solder the removed A C head PWB onto a new A C head assembly 2 The A C head assembly is attached so that the A C head arm and A C head plate are roughly parallel to each other Solder LR New AK head ass y Never touch the head Figure l 4...

Page 33: ... position Reverse guide adjusting jig shown below Weight of 5009 AK head adjusting height Reverse guide Reverse guide height 7 a b Weight To readjust the height remove the cut washer from behind take out the spring lift the reverse guide and add a washer Reverse guide ism chassis Adjust the height using bination of washers O 5 0 4 0 25 and 0 13 S p r i n g Mechanism chassis El Spring Washer iron f...

Page 34: ...Guide roller Hexagon d e Figure l 51 Figure l 52 Change the envelope waveform from MAX to MIN and MIN to MAX by pushing the or tracking button and check a flat response is obtained on the waveform If a flat response cannot be obtained roughly adjust the guide rollers on the supply side and take up side using an adjusting screw driver until a flat response can be obtained Turn the A C head tilt adj...

Page 35: ...sh the or button to change the envelope waveform from MAX to MIN and MIN to MAX Adjust the guide roller s height on the supply and take up sides with an adjusting screw driver to obtain an envelop waveform that is as flat as possible d If the tape is above or below the helical lead the PB CHROMA waveform will take the shape shown in Figure l 59 e Adjust for maximum flatness of the envelope as the ...

Page 36: ...e housing control assembly l Removal Follow the order of ingicated numbers Remove the three screws l Reassembly 1 Mount the capstan motor on the mechanism chassis making sure not to allow the capstan shaft to hit the mechanism chassis and attach it with the three screws 2 Insert the FFC into the capstan D D motor control PWB 3 Attach the reel belt Notes 1 After installing the capstan D D motor be ...

Page 37: ...o deform the anti fall hooks of the slow brake lever slow brake shaft cap and supply take up loading gears more than required REMOVAL AND REASSEMBLY OF LOADING BLOCK l Removal 1 Remove the cassette loading belt 0 2 Unscrew the three screws Q 3 Pull the loading block upward Screws Figure l 65 Note When using a magnetic screw driver in removal of three screws do not allow the magnetic driver to hit ...

Page 38: ...witch in position 4 Resolder the leads to the loading motor 5 Finally place the loading block See page 37 6 Attach the loading belt Figure l 70 3 0fO l mm 33 I IilL Note When press fitting the loading motor pulley keep the pressure less than 5 kg and the gap between the motor and pulley should be 3 0 2 0 1 mm Figure l 71 REPLACEMENT OF MASTER CAM l Removal 1 Remove the E ring 0 2 Remove the pinch ...

Page 39: ...hould be paid to their replacement Even a slight amount of foreign material will affect the accuracy of their reassembly l Replacement Follow the order of the indicated numbers Notes 1 2 3 Avoid touching the drum surface with bare hands Pull out the upper drum with care so that it may not be tilted and replace it with the upper drum replacing jig using care not to damage the disk circumference Do ...

Page 40: ... match 3 Be careful not to damage the upper drum or the video head 4 Be sure that the hall device and the 0 0 stator assembly are not damaged by the 0 0 rotor assembly or other parts 5 After installation adjust the playback switching setscrew D D stator ass FFC Figure l 76 l Removal 1 Unhook pat t 0 with a finger in the direction of Y arrow Hold the rib marked with an arrow of the AHC ass y Q with...

Page 41: ...ed on the Y C PWB Control R7701 head switching point adjustment control Specification 6 5 2 0 5 H lines 1 Play the alignment tape VROCPSV 2 Short circuit test points TP8201 and TP8202 on the A V Jack PWB or remove the cassette housing ass y to set the auto tracking to center See Note below 3 Connect a dual trace oscilloscope to the VIDEO OUT pin 3 of EL connector and TP2202 Trigger the oscilloscop...

Page 42: ...back the SP self recorded tape in the NTSC System slow mode 2 Make the test points TP8201 and TP8202 short circuited in the Jack PWB 3 Be sure that the PB mode display b disappears on the screen 2 Make the test points TP8201 and TP8202 short circuited in the Jack PWB 3 Be sure that the PB mode display b disappears on the screen 4 Remove the short circuit 5 Adjust the tracking control using the TRA...

Page 43: ... 3 Adjust R2202 so that the signal amplitude is 2 OVp p as shown in Figure 2 3 See Note below Adjustment of NTSC System still picture vertical sync Measuring instrument I Monitor TV Mode I Still picture playback I Input signal I NTSC self recording tape 7 Test point I Monitor screen I Adjusting point Tracking control buttons 1 Figure 2 3 Specification 1 No noise jitter I Note 1 Play back the self ...

Page 44: ...ci Iloscope E E or Record PAL colour bar 1 OVp p TP2205 Signal TP2206 G N D R2203 white clip control 190 5 See note below 1 Connect the oscilloscope to test points TP2205 Sig and TP2206 GND 2 Feed the colour bar signal to the VIDEO IN jack and put the unit in AV input mode 3 Adjust R2203 so that the overshoot of the video signal is clipped at 190 as shown in Figure 2 5 Note From sync tip to white ...

Page 45: ...6 Feed the PAL standard colour bar signal to the VIDEO IN jack and adjust R2204 so that the frequency counter reads 4 3MHz 7 Repeat step 5 thru 7 a few times 8 Under this condition record the EIA colour bar on tape rewind and playback 9 Make sure that the amplitude of the playback colour bar signal is 2 0 kO 1 Vp p as shown in Figure 2 6 If it is out of specified value check the PLAYBACK LEVEL R22...

Page 46: ...d the audio signal shown in tableto the AUDIO IN jack 3 Make the self recording and playback of the signal 4 Make sure that the AUDIO OUT level is as specified If it is out of specified value verify the bias current ADJUSTMENT OF AUDIO BIAS CURRENT below Adjustment of audio bias current IMeasuring I AC milli voltmeter or instrument Oscilloscope I I Mode I Record I Input signal Test point Control S...

Page 47: ...normal t direction and master cam clockwise Loading motor turns in reverse direction and master cam t counterclockwise Does cassette control clutch come off within 2 5 sec after cassette ND t A switch has turned off Cassette is judged caught halfway Mechanism position SW 4 input H H H L L c H Cassette inserting T 1 T T ATSV f 47K 47K 4 47K 47K L 1 tYE5 Are start end sensors at low level before cas...

Page 48: ...turns in reverse direction and master Slow brake pressing Picture appears Slow brake comes into r t Is take up reel sensor signal NO outputted Loading motor stops Capstan motor stops End I I J 1 G MJchis VSR 1 PLAY VSF REVPLAY STOP I Press STOP key I Press FF key t Set capstan motor to search speed t End 11 Stop loadi g motor 19zt prtan m r to search 1 Stop capstan motor IIs take up reel sensor si...

Page 49: ...olenoid 3 1 I J t 1 Cam switch iI position I Stop loading motor I Brake latching Cam switch is at BS position I Turn loading motor in normal direction I Cam switch is at UC stop position Is take up reel pu Ire outputted End FF REW STOP r Press STOP key t Stop capstan motor t I Release brake solenoid and brake reel disk t End I Tape slack detectiog Stop capstan motor in about 5 sec Release brake so...

Page 50: ...o 12V and Vcc 5V applied k 1 Replacesolenoid I Tape travel is presumably overloaded due to damage on tape Damaged tape is to be out of use Replace capstan DD motor I 1 Disconnect and reconnect FFC while attracted or No broken lead Remove cassette T Is brake shifter at PLAY MC position NO Is brake shifter at IYES Replace relay shifter Is take up reel disk NO Is capsten DD Are Vco 12V and NO Disconn...

Page 51: ... power off and remove cassette controller Is reel disk height as specified using jig I Power ON FF key IN Turn take up reel disk Is unusual sound heard at YES slowly with finger Are FF 7 take up reel stopper and Fi NO PB gear rubbing each other NO Press REW key and turn take up reel disk by hand IH 1 I YES Undo reel belt turn take up disk by hand and press FF key IREW 7 Is unusual sound heard at Y...

Page 52: ...ible from the infrared remote control I I 1 YES I I I f I 1 Does the infrared remote control function lLwl control as required Replace the infrared remote I Is there oscillation at pins 31 and 32 of ICBBOl fIX2522CE Replace ICBBOl and or FL880 1 I j YES I 1 YES I I I Is 5V applied at pin 2 of the remote control receiver Check the 5V and GND lines I t Does pin 20 of IC8801 change from Ii to L level...

Page 53: ...loaded YES Does cassette switch voltage at pin 70 of IC8801 than e from 0 8V ND to OV to 2 5V leve9 Check the cassette switch and all when the the way up to IC8801 cassette tape is loaded 7 iYES t Does the capstan motor start NO when the EJECT button is pressed 7 5 See FLOW CHART NO l 7 YES Does the take up reel disk turn when the capstan motor is Check the reel disk and reel drive running IN0 b Y...

Page 54: ...VT 341 8X VT 51 18X is z 0 Y Y c U T J 2 c 4 54 ...

Page 55: ...n the MC socket and C880 1 Is UR12V atpin 3 of MEsocket No Check the UR12V line Replace the drum motor Replace the reel sensor located in the reel sensor PWB F2977GE I The drum motor runs only for a few seconds I HEAD SWITCHING PULSE TROUBLESHOOTlNG FLOW CHART NO l 9 I No head switching pulse I DFG w I s the NO rotating See FLOW CHART NO l 10 D PG yr t p L YES t Are the drum PG and drum FG signal ...

Page 56: ...t pin 64 of IC8801 1 NO Check pin 4 of the harness ME and the drum motor Is there the head switching pulse at pin NO See FLOW CHART NO l l 2 Check the composite 22 of IC8801 sync signal at pin 1 of connector El from Y C YES clrcult 1 Is there the drum Does the drum error control volta e applied h NO _ amplifier circuit of 1 7701 NO to pin 6 oft e harness pins 11 2 and 3 ME operate normally 1 YES C...

Page 57: ...HART NO l 12 t Does PB CTL SI P nal appear at pin 62 of YES ICB801 7 I NO I ll NO Is the harness EO MR NO Replace the harness EO normal MR I t YES m j YES pzG Kzj J Replace IC8801 YES Check the composite sync slgnal line and pin 1 of connector El from Y C circuit I Check I I ...

Page 58: ...t pin 32 I Check pin 3 of connector CC and signal line Is there a signal at pin No Check 42213 and 2 of connector CE 7 peripheral circuit I I 1 YES t Is there a signal at pin NO 25 and 27 of IC3301 Check the CE XB harness 1 TEA5705 7 I 1 YES Is there a signal at pin 2 No of connector CE TP2204 Check the CHROMA ROTARY line I YES J I I NO Is there a signal at pin 14 of IC3301 TEA5705 Check the signa...

Page 59: ... 12 of IC2201 NO 28 of IC220 1 L level t Check FV signal line I I I I I 1 YES 1 YES I I Are there v C DATA and No clock signals at pins 9 and 10 of IC2201 respectively 1 YES I L 1 I Is there a signal at pin NO Check all the way up to 51 of IC2201 1 pin 51 of IC2201 and the harness from YES XBJ toiCE J f L I I Is there a signal at pin 20 of IC2201 7 YES NO Check and adjust VCO FLS501 Is there a sig...

Page 60: ... is not heard I EE EE Sound is heard But audio REC is not PB Sound is not heard Check the L level at pin ll oflC6601 in Replace IC6601 J Is there Bias Oscillator signal at pin 6 and pin 5 of T6601 Bias Oscillator YES Check the REC Signal line between pin 3 of IC6601 and Audio Head Check pin 19 of IC6601 and peripheral parts Is there an Audio Signal at pin 22 of NO IC6601 Check the H level at PB mo...

Page 61: ...VT 341 8X VT 51 18X TROUBLESHOOTING OF TV SECTION I I I I 1 I I I I I I I ___ I iiE I b z 61 ...

Page 62: ...ghtness and Sound Control t Is there a signal at pin 7 of IC351 F 4 Check the tuner bias t I t I Abnormal I Normal I 1 Is there a signal at f E Of t Check lC301 and adjacent parts Does the 9V 6 appear at pin 9 of II 0 I NO VERTKAL SCAN 1 CF1601 503kHz IC1601 pin 29 bias check Normal I r I I I IC1801 I L __ ______J c I IC501 lX0640CE bias check r I RSOI 0501 I I c501 c503 L 1 _ I parts I L ...

Page 63: ...n colour broadcast receptron 1 Is there a chroma signal at pin 20 of ICl801 iX0969CEN 1 and at pin 8 of connector Y2 or pin 3 of AD No I Check the VCR TROUBLE SHOOTING RECORD IS IN BLACK AND WHITE EE colour mode j adjacent parts I I I Check speaker I I _ ___ _ ______I I i Xl802 P A L 4 43MH i I L A L _ __ 1 Check Q851 and its i adjacent circuits I 1 _ __ ___ __a The picture colour is r mj CheckQ85...

Page 64: ...ite balance I L J Abnormal 1 c1801 Check SE M H Signal ______ Line H level at pm 9 of connector f AG in SECAM Mode Circuits to be checked l ICI801 and its Adjacent Circuit l R G 8 Output Circuit FLOW CHART NO Z 10 NO SPECIFIC COLOUR NTSC 4 Specific colours are not produced in colour NTSC 3 58 receptron Is there a chroma signal Check the VCR at pin 20 of ICI801 No TROUBLE SHOOTING iX0969CENl and at...

Page 65: ...VT 341 8X VT 5118X MODEL VT 3418X OVERALL SCHEMATIC DIAGRAM I L _ J I OCNW 0 I60AJZZ F U L L E R A S E H E A D AU010 CONTROL HEAD OCNW 0 I45AJZZ OCNW OIXBAJZZ 1 I 2 I 3 I 4 I 5 I 6 I 65 ...

Page 66: ...VT 341 8X VT 5118X OCNW 0 I46AJzi u I 2 z 3 3 III 4 5 5 6 6 I 7 8 8 OCNW 0147AJZi PWB Y T V M A I N F83OOPE PWB A I OCNW 8 638PEZZ 7 I 8 I 9 I 10 I 11 I 12 I 66 ...

Page 67: ...I VT 341 8X I VT 5118X MODEL VT 51 18X OVERALL SCHEMATIC DIAGRAM F U L L E R A S E H E A D OCNW 0 I45AJZZ OCNW 0 l36AJZZ M56732L DRUM MOTOR UN 1 I 2 I 3 I 4 I 5 I 6 67 ...

Page 68: ... VT 341 8X VT 51 18X XNW 0 I59AJZZ El4 1 2 iL 3 4 5 6 7 8 9 OCNW 0 I46AJZZ Y AC 7 z 1 1 I2 4 4 5 5 6 L I T I a OCNW 0 I47AJZZ XNW OI49AJzZ I I 7 I 8 I 9 I 10 I 11 I 12 1 68 ...

Page 69: ...41 8X VT 5118X MODEL VT 3418X CHASSIS LAYOUT OF TV SECTION R857 G D R I V E R863 zEq I 0853 PWB B r I I PWB B I I 1 III I H K J PW BB F 0762 0 0 075 I 0 0753 076 I 0 PW 01001 0 PWB YE pETq UNT20 I l fn 01008 cl O 01006 69 ...

Page 70: ...W 3418X VT 51 18X PWB D B A cl 0402 A U D I O I N V I D E O I N I PWB Y Y3 r Y4 AF IA D AE l L5 IL L L 3 J1401 p Y41 I DLl401 Cl 402 CFl401 T I 804 DLI80I I I PWB F 7 I 8 I 9 I 10 I 11 I 12 1 70 ...

Page 71: ... OF TV SECTION H G F E D C B A PWB B n RMC300 I AC 1 PWB B I I I K 01008 DA BB R702 c707 PWB Y I 1 R612 0602 r R526 V LINI L60 I UP I 1 s50 I ceiTNDTowNI I i w 5 VA70 I 0603 0 I B 0 0 0202 00 0203 IpEET I I V I D E O 5 I I A U 1 I 2 I 3 I 4 I 5 I 6 71 ...

Page 72: ...03 J PWB T D A PWB A I WB F PWB Y 00 I403 Sl40 SERV I 0 01802 a 0 1 01801 K 0150 0 1601 0 TP1802 Li 0 01602 CFl601 X I 802m 1 RI602 j KEq c 11 3 Jl4Ol I 1 1 i 01451 0 0 0402 01302 0 DLl401 L l IY3 l l AF A D 1 Y4 I AE 3 AG 01405 u n PWB F l L5 I 7 I 8 I 9 I 10 I 11 I 12 1 72 ...

Page 73: ...H G F E D C 6 A MODEL VT 3418X BLOCK DIAGRAM OF TV SECTION 0 Mother Unit c7cG 2 m m cl mn PHOTO a COWLER I 5 1 ir 1 I 2 I 3 I 4 I 5 I 6 I 73 ...

Page 74: ...m 3418X i T 5118X VCJ AV UNIT 7 I 8 I 9 I 10 I 11 I 12 I 74 ...

Page 75: ...VT 341 8X VT 5118X MODEL VT 51 18X BLOCK DIAGRAM OF TV SECTION 17 Mother Unit 4r I I I t i 1 I 2 I 3 I 4 I 5 I 6 75 ...

Page 76: ...VT 341 8X VT 5118X VCJ AV UNIT I 7 I 8 I 9 I 10 I 11 I 12 1 76 ...

Page 77: ...VT 341 8X i T 5118X MODEL VT 3418X BLOCK DIAGRAM OF TV SECTION Cl CRT Socket Power SW R C Line Filter VCJ AN Unit PWB F WB D 2 Y i e 0 e _ 0 PCS GNO c HER I 1 I 2 I 3 I 4 I 5 I 6 I ...

Page 78: ...PWB B V I D E O CHROMA J U N G L E 7 I 8 I 9 I 10 I 11 I 12 I 78 ...

Page 79: ...I VT 341 8X 1 VT 5118X I 1 H G F E D C B A MODEL VT 51 18X BLOCK DIAGRAM OF TV SECTION Cl CRT Socket Power SW R C Line Filter VCJ AN Unit PWB Y L T z ERAUP 1 I 2 I 3 I 4 I 5 I 6 79 ...

Page 80: ...PWE 8 I 1 V I D E O CHROMA JUNGLE hr r I 7 I 8 I 9 I 10 I 11 I 12 I 80 ...

Page 81: ...VT 341 8X VT 5118X H G F E D C B A MODEL VT 51 18X BLOCK DIAGRAM OF TV SECTION 0 Sound Output Unit 1 I 2 I 3 I 4 I 5 I 6 1 81 ...

Page 82: ...FORMER BETWEEN TV RECEIVERAC LINE TO ELIMINATE HAZARD OF ELECTRICSHOCK C A U T I O N This circuit diagram is original one therefore there may be a slight difference from yours N O T E S I The unit of resistance ohm is omitted K 7000 ohms M IMeg ohm 2 A resistors are l 8 watt unless otherwise no ted 3 The unit of capacitance F is omitted p J P I 4 The values in parentheses are the ones in the PB mo...

Page 83: ...OTHER MOTHER MOTHER fv ff luln l L 0 6 1 2 Vp p H 0 7 165 VP p H m 3418X 0 8 950 Vp p H 0 9 13 VP P H 010 10 Vp p H 96 VP p H VT 5118x L I MOTHER MOTHER MOTHER MOTHER MOTHER 011 0 47 Vp p H 012 0 56 Vp p H 013 2 6 Vp p H 014 0 42 Vp p H 015 0 92 Vp p H MOTHER CRT CRT CRT 016 0 67 Vp p H O 17 78 VP p H VT 3418X 018 78 Vp p H i 3418x 0 19 78 VP P H VT 3418X 94 VP P kt VT 5118X 85 Vp p H VT 51 18X 88...

Page 84: ...OR EMIlTER 2SK304CD B C E 2SD1555 1 9 TA7348P 321 1L L BASE COLLECTOR EMITTER DTC144ES 2SC1815 2SA1015 iX0640CE 123 iX0452CE In 1 1L L BASE 123 COLLECTOR EMITTER 2SC3279N PST529D2 2sc2229 I I 0 0 0 1 7 STRM6523 ix0241 CE NJM22205 iX0257CE iX0249CE 1 L BASE COLLECTOR EMITTER 2sc3399 2SC3620 123 TA78 125 TA7805S PQ30RVll SElZON 84 ...

Page 85: ...r H G F E D C 0 A MODEL VT 3418X SCHEMATIC DIAGRAM W Mother Unit CCNW t613PEZZ CRT PYRI 1 IM EiE Grn 3 HITER 4 w VT 341 8X VT 51 18X 1 I 2 I 3 I 4 I 5 I 6 85 ...

Page 86: ...VT 341 8X VT 5118X 7 I 8 I 9 I 10 I 11 I 12 I 86 ...

Page 87: ...H G F E D C B A MOD n Mot L VT 5118X SCHEMATIC DIAGRAM 7er Unit l 0753 2XI615 Gl w 341 8X W 5118X ImE IXO249CE 1 I 2 I 3 I 4 I 5 I 6 87 ...

Page 88: ...rr J I I TUNER w2o1 m ...

Page 89: ...n 3 30 ...

Page 90: ...VT 341 8X VT 5118X VCJ AV UNIT DUNTK830 I WEV3 I I I m c I 7 I 8 I 9 I 10 1 11 I 12 I 90 ...

Page 91: ...VT 341 8X VT 5118X MODEL VT 3418X SCHEMATIC DIAGRAM n CRT Socket Power SW R C Line Filter VCJ AN Unit DUNTK8373WEV I DUNTK830 I WEV I 1 i 1 I 2 I 3 I 4 I 5 I 6 91 ...

Page 92: ... VT 341 8X VT 51 18X DUNTK8302WEV 1 DUNTK8303WEV I I 7 I 8 I 9 I 10 I 11 I 12 I 92 ...

Page 93: ... VT 5118X SCHEMATIC DIAGRAM n CRT Socket Power SW R C Line Filter VCJ AN Unit DUNTK830 I WEV3 1 OlwE J OPWBF830lPEZZ VT 341 8X VT 5118X I e v l I I m 01302 WI 1om 2SC1815 G I I I i 1 I 2 I 3 I 4 I 5 I 6 r 93 ...

Page 94: ...VT 341 8X VT 5118X DUNTK8302WEV3 DUNTK8303WEV3 7 I 8 I 9 I 10 I 11 I 12 I 94 ...

Page 95: ...BK r c300 I IO llW R3015 C3022 3 9K 22 16V 5 C3022 22 16V R3006 56 I I 4W SP30 I VSPOOBOP H26A m DDI r a RI mm m c3004 a003 470 IO t I6VI I6Vl m C3025 IO 4 1 T 1 JYO 1 L c3029 470 l16V1 SP302 vSPOO OP H28A 3002 044 ICE I C3032 01 T 16Vl AX c303 I 4470 16V f ml L_ S VCC GND GND IZV s VOL AF IN NO74 ICE T T O MAlN DEl PWB T O MAIN PWB ...

Page 96: ...are supplied as an assembly but not independently Fi Y i i _ BL p j I I I I OT 1 I I BH i VTSSSZD k u AFT l Infrared Remote Control Unit NOTE The parts here shown are supplied as an assembly but not independently RRMCG1046PESA 1 I 2 I 3 I 4 I 5 I 6 I 96 ...

Page 97: ... _ _ _ __ D I m I n I t3 I m I n I GI I I 1 ...

Page 98: ...Memo _ a _ _ 98 ...

Page 99: ... I I TP820 I A V JACK El XB i i DL550 I I 0 02219 05512 Dm x220I 02223 0 Y R2202 EE LEVEL R220 I PB Y LEVEL Y TP2 TP2 IC220 I CB r PWB E c v u I PW c 0 E l IC560 I I Et EA IC8803 I IC8802 0 07704 I EB 08803 0 0 0 EK EM 08818 0 0 08815 I I 1 I 2 I 3 I 4 I 5 I 6 99 ...

Page 100: ... l TP22OI PB CHROMA TP2202 HEAD SWITCHING PULSE TP2203 GND TP2204 REC S I G N A L x550 I s cl TP5501 C o TP5502 GND ciia X5502 I R22l2 0 rxj I 1 I 09904 0 0230 I 0 J 0 09905 cz ED EGK7701 06607 O0 06606 II E L 00 06602 I EF IC660 I n 00800 0 c l TP660 I BIAS TP6602 BIAS 05603 n T660 I v Rx4 rl F3 B I A S ADJ Do 09903 LO660 0 IC990 I I 7 I 8 I 9 I 10 I 11 I 12 1 100 ...

Page 101: ...ECTION 0 OVERALL BLOCK DIAGRAM XC402 VICE0 SELECT SW AWIO mocEss EE AWIO REcceomcKzss AWIO MAO REc1 12 I EE 1 AWIO PumAa mosss EE AU 10 E R A S E HEAD 14 I ELF Au 10 FE HUD 1 I n AWXO HE D PBI I J 1 I 2 I 3 I 4 I 5 I 6 I 101 ...

Page 102: ...I REC I w r I I I CAPSTAN FG 7 I 8 I 9 I 10 I 11 I 12 1 102 ...

Page 103: ...K DIAGRAM OF VCR SECTION 0 SERVO PROCESS BLOCK DIAGRAM 1caao1 sFRvolsYsTEu ccNTM KLD I i r __________ _ _ I OFMA _____ ___ __ _ ________ VIE0 I PG ALP KSWP v 517 1 N cbPST N PC _ I 1 I 2 I 3 I 4 I 5 I 6 103 ...

Page 104: ..._ F PLLY I UJTWY l I F m kFL I I I I I F Gac I I I I L I m 1 FnAsf ccunm I LAY03 I I I I I I _A__ I I iC MAAPC I Pwwo t I I I I e J I I Ic8MI loPm ORW ACUSTW 1 i I I I I II I I I I I I f i I 7 I 8 I 9 I 10 I 11 I 12 I 104 ...

Page 105: ...BLOCK DIAGRAM OF VCR SECTION 0 SYSTEM CONTROL BLOCK DIAGRAM H G F E D C 8 3 E e a I E a d rt I a 1 I 2 I 3 I 4 I 5 I 6 I 105 ...

Page 106: ...CASSETTE SW REC TIP I ED M I I II DFfwPG I I I I I I I I I I I I ...

Page 107: ...PAL xm 7 r 7 L J r l TUNER P NJX J I d I IC660I I BA77QSLS Ldl P I i I w 2 1 AUDIO EAO REC TP6602 BIAS I ro T V BLoca FlAL ERASE HEAD AU010 ERASE MEA0 AWIO HEAD i3 n ...

Page 108: ... S T E M S E L E C T FWCTION O F P M O F ItXOO 1 ZAGE EWREC m SW 4 5N ic tr 6oHz I S 3 15 XLECTED AUTOMATICALLY 0 2 90 V SYtC N O T USE0 MAtNMwHx 2 08 NOTU XD MANJALMJHz 125 W I T H I 5K bA4MJAL 5Ctb IPMI 0 4 I Q 0 T O W L MANML6cewT5a II AG E N EJ a Sl MSECAM W IS T O V I D E O BLOW E N AG 1 MYXAM 5V 19 TO TV OCK 9 ...

Page 109: ...VT 341 8X VT 51 18X BLOCK DIAGRAM OF VCR SECTION 0 VIDEO SIGNAL FLOW BLOCK DIAGRAM r L z 1 1 1 I 2 I 3 I 4 I 5 I 6 I 109 ...

Page 110: ...VT 341 8X I VT 5118X 1 J 7 I 8 I 9 I 10 I 11 I 12 I 110 ...

Page 111: ...4 The values in parentheses are the ones in the PB mode the values without parentheses are the ones in the REC mode VOLTA GE MEASUREMENTCONDITIONS 1 DC voltages are measured between points indicated and chassis ground by VTVM with AC220 240V 50Hz supplied to unit and all controls are set to normal viewing picture unless otherwise noted 2 Voltages are measured with 1OOOOpV B W or co our signal WAVE...

Page 112: ...VT 341 8X I T 5118X 1 WAVEFORMS 112 ...

Page 113: ...SCHEMATIC DIAGRAM n Y C Unit r I zsc I7405l0 R P A L CHAOMA CHROMA BUFFER 01215 25524 I ZKIOI 8 93MHz osc I n IO 0 4 a LD D I 1 I 2 I 3 I 4 I 5 I 6 1 113 ...

Page 114: ... VT 51 18X 2 4 DTAl44EK FV CONTROL a JY D SWITCH 055oy I lSS0 19 r 0550 I 2X2735 VCO NTSC SWITCH P A L P6 F M ALIZER ALP 02203 2SC24 I2KtO P A L I 6 F M EWALIZER A M P 02205 2SC24 I2K Ol NTSC PB F M EOUALIZER A M P 7 I 8 I 9 I 10 I 11 I 12 I 114 ...

Page 115: ...SCHEMATIC DIAGRAM n VCR Main Unit r 7 I 1 I 2 I 3 I 4 I 5 I 6 115 ...

Page 116: ...VT 341 8X VT 5118X DUNTK48 I OTEV l VT 3418X Y C UNIT DUNTK48 I I TEV I O T 3418X I DUNTK48 I I TEV2 VT 51 18X I I I I II I 05604 I 7 I 8 I 9 I 10 I 11 I 12 I 116 ...

Page 117: ...k Unit HEAD AMP DUNTK48 I5 I I9 C3320 6 3 t 116Vl TEA5705 I 7 I c I R332 0 I 7l7 rh m 6oVl 3301 C3302 C3303 022 022 022 1 I k y c R33OI R3302 660 660 D rr C3308 c3307 1 022 022 q r _ KD330 I PSLDM4372AJFW FRAU PKDU4373AJFW COVE R332 tk R332 i 5 I 1 I 2 I 3 I 4 I 5 I 6 I 117 ...

Page 118: ...160 R r RE302 G I50 I R8303 270 R r 1 5 6304 G i 220 D63D2 PXOf96GE REC TIMR L E D REC RED TIMER STANDBY GREEN TIMER REC ORANGE CHILD LOCK 06303 PXO I924 111 R R63D6 270 DEW LED 06304 PXO l92GE LED I OPERATION DUNTK48 I3TEVO fi STOP EdfCT 58104 I1 Ii I DUNTK48 I ZTEVO RESET REC s VCLV s voi i CH CH A 58206 5620 I 56205 56204 56203 56202 KOO79GE KOO79GE KW79GE KOD79GE KDD79GE KD079GE cchz523 7 I 8 ...

Page 119: ...D I c9 I n I u I m I n I GI I I I ...

Page 120: ...VT 341 8X VT 51 18X PWB B CRT Socket Unit Wiring Side PWB D Power SW R C Unit Wiring Side I 7 I 8 I 9 I 10 I 11 I 12 I 120 ...

Page 121: ...I VT 341 8X 1 VT 5118X n H TV SECTION PWB F Line Filter Unit Wiring Side PWB Y VCJ A V Unit Wiring Side 1 I 2 I 3 I 4 I 5 I 6 121 ...

Page 122: ...VT 341 8X I VT 51 18X I 1 _ _ _ _I i L V i PWB T Sound Output Unit Wiring Side Only for VT 51 18X 7 I 8 I 9 I 10 I 11 I 12 I 122 ...

Page 123: ...D I a I n I u I m I n I GI I I I ...

Page 124: ...11 I 12 I ...

Page 125: ...ECTION x11 i I_ b l__ _ _ 1 PWB I AN Jack Unit Wiring Side v r VY I I I _ I ___ I P 1 ___ _ _ _II x I X1 I PWB I AN Jack Unit Chip Parts Side PWB C Y C Unit Wiring Side 1 I 2 I PWB C Y C Unit Chip Parts Side 3 I 4 I 5 I 6 I 125 ...

Page 126: ...J l J I i _ _ _ ___ I _ _ n f f 7 I 8 I 9 I 10 I 11 I 12 126 ...

Page 127: ...VT 341 8X VT 5118X W VCR SECTION Wiring Side Chip Parts Side PWB H Operation Unit Wiring Side Chip Parts Side PWB X Head Amp Unit 1 I 2 I 3 I 4 I 5 I 6 127 ...

Page 128: ...VT 341 8X VT 5118X Wiring Side Chip Parts Side PWB L LED Unit VT 341 8X Wiring Side PWB L LED Unit VT 51 18X I 7 I 8 I 9 I 10 I 11 I 12 I 128 ...

Page 129: ... J DeflectionYoke A L799 RCiLG0364CEZZ J DegaussingCoil PMAGF3003CEZZ J PurityMagnet PSPAG0003PEZZ R Wedge Gum Yoke Positioning 3 used BX BC A N A K AB CK BD AV A K A D End of PICTURE TUBE PRINTED WIRING BOARD ASSEMBLIES PRINTED WIRING BOARD ASSEMBLIES NOT REPLACEMENT ITEM NOT REPLACEMENTITEM Model VT 341 8X Model VT 51 18X TV Section PWB A DUNTK8300WEV8 M o t h e r U n i t PWB B DUNTK8303WEVl CRT...

Page 130: ...t AP VT 5 118X Ref No Part No Description Code TRANSISTORS Continued Q751 VSZSCl81 SGW 1 J ZSC1815 G RelaySw AB Q753 VSZSCl81 SGW 1 J ZSC1815 G Protector AB 4755 VS2SC181 SGW 1 J 2SC1815 G Protector AB 4756 VSZSCl81 SGW 1 J 2SC1815 G Protector AB 4761 VS2SC181 SGW 1 J 2SC1815 G 33VReg AB 4762 V S 2 S C 3 2 7 9 N I 1 J 2SC3279N H Vcc Reg AC 41001 VS2SC383 WT 1 J 2SC383 VrAmp AE QlOO2 VS2SAl 01 5Y l...

Page 131: ...inued c T602 RTRNF0096PEZZ R FlybackTrans FBT B E VT 341 8X A 662 RTRNF0097PEZZ R FlybackTrans FBT BF VT 5 118X A T701 RTRNZ0060PEZZ R RegulatorTrans BH VT 341 8X A T701 RTRNZOO62PEZZ R RegulatorTrans AY VT 5 118X T 1001 R C i L B 0 0 4 5 C E Z Z J Oscillation Coil OSD AE CONTROLS R421 RVR M4632GEZZ J lOOk B Sub Contrast AB R503 RVR M4632GEZZ J lOOk B VerticalSize AB R526 RVR M4626GEZZ J lOk B Ver...

Page 132: ... B 1 O2K J lOOOp5OOV Ceramic A A VCEAGAZCWl06M J 10 16OV Electrolytic AC C610 C611 C612 C613 C613 C614 C615 C616 C617 C618 C620 A c701 A c703 A c704 A c705 A C706 A c707 A C708 A c709 A c710 AC711 A C712 A c714 AC715 A C716 A C722 A C723 A C724 A C725 c751 C752 c753 c754 c755 C758 c759 C760 C761 C762 C763 C764 C765 C766 C767 C768 c770 c771 CAPACITORS Continued VCFPPD2DB474J J 0 47 ZOOVM Polyester ...

Page 133: ... VCCCPAlHHZROJ J 2p 5OV C e r a m i c M Cl 040 RC KZ0019GEZZ J 0 1 C e r a m i c M CAPACITORS Continued Ref No Part No Description Code R201 R202 R203 R204 R205 R206 R207 R208 R209 R210 R213 R214 R215 R216 R220 R221 R222 R301 R302 R306 R307 R308 R309 R351 R352 R353 R354 R355 RESISTORS VRD MNZBE472J J 4 7k 1 8W C a r b o n VRD RAZBE 1031 J 10k 1 8W C a r b o n VRD MN2BE472J J 4 7k 1 8W C a r b o n ...

Page 134: ...D222J J 2 2k 1 2W C a r b o n M VRD RMZHD392J J 3 9k 1 2W C a r b o n M VRD RMZHD472J J 4 7k 1 2W C a r b o n M VRG RLZHB3R9J J 3 9 1 2W FuseResistor A D VRS KT3LB473J J 47k 3W MetalOxide AE VRD RAZBE681 J J 680 1 8W C a r b o n M PM B A DUNTK8300WEvsrvs MOTHER UNIT RESISTORS Continued R424 VRD RAZBE272J J 2 7k 1 8W C a r b o n VT 341 8X R425 VRD MN2BE333J J 33k 1 8W C a r b o n A R501 VRG RL2HB3R...

Page 135: ... r b o n R1019 VRD MN2BEl 52J J 1 5k 1 8W C a r b o n R1020 VRD MN2BE562J J 5 6k 1 8W C a r b o n R1021 VRD MNZBE272J J 2 7k 1 8W C a r b o n R1022 VRD MN2BE222J J 2 2k 1 8W C a r b o n R1023 VRD MNZBE152J J 1 5k 1 8W C a r b o n R1024 VRD RA2BE562J J 5 6k 1 8W C a r b o n R1025 VRD MN2BE332J J 3 3k 1 8W C a r b o n R1026 VRD MNZBE272J J 2 7k l BW C a r b o n R1027 VRD MN2BEl 52J J 1 5k l BW C a r...

Page 136: ...M M M M M M M M M M M M M M M AH AC AL Ref No Part No t Description Code MISCELLANEOUS PARTS A F701 QFS C3224CEZZ J Fuse T3 15A 250V A F751 QFS J2521 GEZZ J ICProtector FB501 RBLN 0014GEZZ J FerriteBead FB502 RBLN 0037CEZZ J FerriteBead VT 5 118X FB601 RBLN 0037CEZZ J FerriteBead FB602 RBLN 0037CEZZ J FerriteBead AFB701 RBLN OOlOCEZZ J FerriteBead nFB703 RBLN 00 1 OCEZZ J FerriteBead AFB704 RBLN 0...

Page 137: ...72J J 2 7k 1 2W C a r b o n M R868 VRS VV3DB153J J 15k 2W MetalOxide M R869 VRD RMZHD272J J 2 7k 1 2W C a r b o n M VT 5 118X R870 VRD RMZHD272J J 2 7k 1 2W C a r b o n M VT 5 118X R899 VRD RA2BElOOJ J 10 1 8WCarbon M MISCELLANEOUS PARTS FB851 RBLN 0037CEZZ J FerriteBead VT 5 118X P851 QPLGN0441CEZZ J Plug4 pin H P852 QPLGN0541CEZZ J Plugs pin K ASC851 QSOCV0829CEZZ J CRTSocket VT 341 8X ASC851 QS...

Page 138: ...AB Q1401 VSDTCl 24ES 1 J DTC124ES AB 41402 VSZSAl 01 5Yll E J ZSAlOlS Y PictureAmpAC 41403 VS2SAlOl 5Yll E J ZSAlOlS Y AC Current Source 41405 V 5 2 S C 3 3 9 9 II 1 J 2SC3399 Blue Mute Sw AB 41406 VSZSCl81 SGW 1 J 2SC1815 G AB 41451 VSZSC181 SGW 1 J 2SC1815 G VideoAmp AB Q1501 VSZSC1815GW 1 J 2SCl815 G AB 41601 VSZSC181 SGW 1 J 2SCl815 G AB Q1602 VS2SC3399 1 J 2SC3399 Blue Switch AB Q1801 VS2SAlO...

Page 139: ... 16V Electrolytic M VT 5 118X cl422 VCEAGAl CW227M J 220 16V E l e c t r o l y t i c A C Cl451 VCEAGAlCW108M J 1000 16V E l e c t r o l y t i c A D Cl452 VCKYMNlCY103N J 0 01 16V C e r a m i c A A Cl453 VCEAGAOJW477M J 470 6 3V E l e c t r o l y t i c AB Cl454 VCKYMNlCX182M J 18OOp16V C e r a m i c M Cl459 VCEAGAlCW476M J 47 16V Electrolytic AB Cl510 VCSATAlVE225K J 2 2 35V T a n t a l u m A C Cl6...

Page 140: ...M A A M Ref No Part No Description Code R1430 R1431 R1432 R1433 R1434 R1435 R1436 R1437 R1451 R1452 R1453 R1454 R1455 R1456 R1468 R1475 R1501 R1505 R1527 R1528 R1601 R1602 R1603 R1604 R1605 Rl606 R1607 R1608 R1609 R1616 R1618 R1619 R1641 R1801 R1802 R1803 R1804 R1805 R1806 R1807 R1809 R1810 R1811 R1812 R1813 R1814 Rl815 R1816 R1817 R1818 R1819 R1820 R1821 R1822 RESISTORS Continued VRD RM2HD471 J J...

Page 141: ...PLGN0541 CEZZ J P l u g S p i n K all401 QJAKFOOl 1CEZZ J J a c k LHLDW1037PEZZ R WireHolder AC AC AC AC AC AB AG A0 End of PWB Y Ref No Part No Description Code PWB T DUNTK8407WEVO SOUND OUTPUT UNIT VT 51 18X INTEGRATED CIRCUIT IC3001 R H i X 0 2 4 1 C E Z Z J Sound Attenuater IC3002 VHiTDA7233 1 J SoundAmp Left IC3003 VHiTDA7233 1 J SoundAmp Right AF AF AF DIODES D3001 VHDlSSl 19 1E J lSS119 D30...

Page 142: ...L2202 VP XFl 51 KOOOO J Coil lSO H L2203 VP XF ZOKOOOO J Coil lZpH L2204 VP XF330KOOOO J Coil 33pH L2205 VP XFl ZOKOOOO J Coil 12pH L2206 VP XFl SOKOOOO J Coil lSpH L2207 VP XF470KOOOO J Coil 47pH L2208 VP XFI ZOKOOOO J Coil 12pH L2209 VP XFl 5 1 KOOOO J C o i l 150 uH L2210 VP XF680KOOOO J Coil 68pH L2211 VP XF820KOOOO J Coil 82pH L2212 VP XFl OOKOOOO J Coil lOpH L2214 VP DF221 KOOOO J Coil 220pH...

Page 143: ...ZZ J 0 1 25V C e r a m i c M C2268 VCKYCYlHBlOZK J OOOPSOV C e r a m i c M CD69 VCKYCYl HB 102K J lOOOp5OV C e r a m i c M C2272 VCKYCYl H F103Z J 0 01 5OV C e r a m i c M C2273 VCKYCY 1 HB681 K J 680 5Ov C e r a m i c M C2274 VCCCCYlHHlOlJ J 1OOp 5Ov C e r a m i c M 143 Ref No Part No Description Code CAPACITORS Continued C2280 VCKYCYlHF103Z J 0 01 5OV C e r a m i c M C2281 VCE9EAlCW226M J 22 16V...

Page 144: ...64 VRS CYlJF681J J 680 l l 6W Metal Oxide M R2265 VRS CYlJF561J J 560 I l 6W Metal Oxide M RESISTORS Continued Ref No Part No Description Code R2267 R2268 R2269 R2270 R2271 R2272 R2273 R2274 R2280 R2281 R2282 R2283 R2284 R2288 R2289 R5502 R5503 R5507 R5513 R5514 R5515 R5516 R5517 R5518 R5519 R5520 R5521 R5522 R5523 R5524 R5525 R5530 R5531 R5532 R5533 R5534 R5535 R5536 R5537 R5538 R5539 R5540 R5541...

Page 145: ...48804 Q8805 48806 Q8807 Q8808 Q8809 48810 48813 Q8814 Q8815 Q9901 49903 49904 Q9905 Q9906 49907 TRANSISTORS VS2SA933SQRl E J ZSA933S Q R VSDTAl24EK 1 J DTA124EK VSDTC144EK 1 J DTC144EK VSDTC144EK 1 J DTC144EK VSDTC144ES 1 J DTC144ES VSDTAl24EK 1 J DTA124EK VS2SC2412KQ 1 J 2SC2412K Q VSZCl740SQRl E J ZSC1740S Q R VSZCl740SQRl E J ZSC1740S Q R VSZSDl812Q 1 J 2SD1812 Q VSDTC144ES 1 J DTC144ES VS DTC ...

Page 146: ...KYD41HB471K J 470 50V C e r a m i c M VCFYSAI HB273J J 0 027 50V M Polyester M VCKYCY 1 HF103Z J 0 01 50V C e r a m i c M VCEAGAlCW476M J 47 16V Electrolytic AB VCEAGAlHW224M J 0 22 50V E l e c t r o l y t i c M VCEAGAlCW336M J 33 16V Electrolytic AB VCKYCYl HF103Z J 0 01 50V C e r a m i c M VCEAEAlCW107M J 100 16V E l e c t r o l y t i c A C VCKYCYlHF103Z J 0 01 50V C e r a m i c M VCKYCYlHF103Z ...

Page 147: ... 100 5OV C e r a m i c M C8826 VCEAGAlCW106M J 10 16V Electrolytic M C8827 VCKYCYlHBlOZK J 1OOOpSOV C e r a m i c M C8828 VCKYCYl H B 102K J lOOOp5OV Ceramic M VT 341 8X VT 51 18X Ref No Part No Description Code C8829 VCKYCYlHF103Z J 0 01 50V C e r a m i c M C8830 VCKYCYlHF103Z J 0 01 50V C e r a m i c M T8831 VCEAGAlHW225M J 2 2 50V Electrolytic AB C8832 VCCCCYI HH220J J 22p 50V Ceramic M C8833 V...

Page 148: ... b o n M R7732 VRS CYl JF563J J 56k 1 16WMetalOxide AAT Ref No Part No Description Code R7735 R7736 R7737 R7738 R7739 R7740 R7741 R7742 R7746 R7751 R7752 R7753 R7755 R8801 R8802 R8803 R8804 R8805 R8806 R8807 R8808 R8809 R8810 R8811 R8812 R8813 R8814 R8815 R8816 R8817 R8819 R8820 R8821 R8822 R8823 R8824 R8825 R8826 R8827 R8829 R8830 R8831 R8832 R8834 R8835 R8836 R8837 R8838 R8839 R8840 R8841 R8842 ...

Page 149: ... J 47k 1116WMetalOxide M R8876 VRS CY 1 JF33 1 J J 330 1116WMetalOxide M R8877 VRS CYl JF822J J 8 2k1116WMetalOxide M R8878 VRS CY 1 JF822J J 8 2k1116WMetalOxide M R8881 VRS CY 1 JF473J J 47k 1 16WMetalOxide M R8883 VRS CY 1 JF473J J 47k 1 16WMetalOxide M R8884 VRS CYl JF103J J 10k 1 16WMetalOxide M R8889 VRS CYlJFlOlJ J 100 lU6WMetalOxide M R8890 VRS CYlJFOOOJ J 0 l l 6W Metal Oxide M R8897 VRD R...

Page 150: ...ontANJack P8201 QPLGN0678GEZZ J Plug6 pin JA P8202 QPLGN0478GEZZ J Plugcpin JB P8204 QPLGN0378GEZZ J P l u g 3 pin JD LHLDW1066PEKZ J WireHolder x2 used M M M M M M AB AB AB AB AB AB AG AH AB A8 AB AC End of PWB J Ref No Part No Description PWB L DUNTK4814TEVO LED UNIT VT 341 8X Code DIODES 08301 RH PX0196GEZZ J L E D AC Power Wake Up Timer D8302 RH PX0196GEZZ J LED Rec Timer D8303 RH PXO192GEZZ J...

Page 151: ...HB472K J 47OOpSOV C e r a m i c M VCKYCYlHF103Z J 0 01 5OV Ceramic M VCKYCYlHBlOZK J 1OOOpSOV C e r a m i c M VCEAEAOJW476M J 47 6 3V Electrolytic AB VCKYCYlHF103Z J 0 01 5OV Ceramic M VCEAEAl CW476M J 47 16V Electrolytic AB VCKYCYlHF103Z J 0 01 5OV Ceramic M A0 AB R3301 R3302 R3303 R3306 R3307 R3309 R3310 R3311 R3312 R3313 R3314 R3315 R3316 R3324 R3325 R3327 RESISTORS VRS CYI JF681 J J 680 1 16WM...

Page 152: ...VT 341 8X VT 5118X MECHANISM CHASSIS PARTS 152 ...

Page 153: ... M MSPRCOl 5lAJFJ V ReverseGuideSpring AB or MSPRCOlSlGEFJ J M MLEVF0379AJZZ V RelayGearDriveLever A C or MLEVF0379GEZZ J AD MSLiF0043GEZZ J BrakeShifter AK NSFTZ0068GEFD J BrakeLockShaft AC MSPRC0143GEFJ J AbsorberPlateSpring AB MSPRT0274GEFJ J VideoSearchSpring AB MLEVP0244GEZZ J VideoSearch Brake LeverAB MLEVP0131GEZZ J VideoSearch AC Reciprocating Lever RPLU 0083GEZZ J BrakeSolenoidAss y AF ND...

Page 154: ...Z J EarthBrushAss y AD RMOTPI 107GEZZ J D r u m D D MotorAss y AW Not Used Not Used Not Used QCN W O 138AJZZ V Full Flat Cable AR QCNW 0 139AJZZ V Full FlatCable AF RDTCHOOl8GEZZ J DewSensor AG QSOCN0534REZZ J Socket Spin MF AC VRS TWZED22lJ J 2201 4WOxideFilm M RSOll R8013 VCKYTVl HBlOZK J 0 001 50VCeramic M CSOOZ VRS TV1 JD473J J 47kl 16WOxideFilm M R8012 Not Used LANGA GEFW J Take Up Reel DiskC...

Page 155: ...H G F E D C B A CASSETTE HOUSING CONTROL PARTS 1 I 2 I 3 I 4 I 5 I 6 I 155 ...

Page 156: ...B MSPRPOI 1 SGEFJ J CassetteSpring AB 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 347 348 349 350 351 352 353 354 355 356 357 401 402 403 404 405 406 End of CASSETTE HOUSING CONTROL PARTS MSPRT0281AJFJ V SliderLockSpring AA or MSPRT0281GEFJ J MSLiF0044AJFW V Slider AM or MSLiF0044GEFW J AF MARMP0039GEZZ J Lock Release Lever AA QSW F0037GEZZ J RECSwitch AD MLEVP0143GEZZ J Slider...

Page 157: ...MECt 1 I 2 I 3 I 4 I 5 I 6 157 ...

Page 158: ...VT 341 8X VT 51 18X I I 7 I 8 I 9 I 10 I 11 I 12 I 158 ...

Page 159: ...236 Not Used 237 XHPSD30P06000 J 238 LX RZ3001AEZZ J 239 LX WZ1042GEOO J 240 Not Used 241 Not Used 242 XWHJZ25 04050 J 243 Not Used 244 XHPSD30P04WSO J 245 XHPSD26P06000 J Screw AB WSWZP llS WS Screw M2x4 AC Screw C2 6P BS M B Tight Screw C2 6 BS M Screw C3P 85 M W a s h e r CW2 5 6 0 5 M BTightScrew2P 6S M Screw W3P 9S NiA232 M Screw S3P lOS W6 SW Screw SW3P BS M Screw SW2 6 12s M Screw SW3P 5S S...

Page 160: ...23PEOO R Spacer x2 PSPAH0051 PEOO R Spacer x2 GCABB2191 PEKA R Cabinet Rear GCOVH0019PEZZ R ACCordCover TCAUA0002PEZZ R Caution Label TLABM0973PEZZ R Model Label Not Used LCHSMOO29PEZZ R ChassisFrame Not Used QACCL3002PEZZ R ACCord QEARC1414PEZZ R Wire GroundingStrap AD AE AE AE AL AE AE AD AE AB AA AA AB 36 Not Used 37 LHLDW1060PEZZ R Wire Holder 39 LHLDW1002PEZZ R WireHolder AB AF AB AB AC AZ AE...

Page 161: ...H G F E D C B A VT 341 8X VT 5118X 1 2 I 3 I 4 I 5 I 6 161 ...

Page 162: ...VT 341 8X VT 51 18X I I 7 I 8 I 9 I 10 I 11 I 162 12 I ...

Page 163: ... 1 DEL VT 3418X CABINET AND MECHANICAL PARTS 0 II I L e e m I w F J 1 I 2 I 3 I 4 I 5 I 6 163 ...

Page 164: ... ...

Page 165: ...4 TCAUAOOOZPEZZ R Caution Label AB 5 TLABM0974PEZZ R Model Label AD 6 6 l 6 2 6 3 6 4 6 5 Not Available Speaker Ass y x2 GBFL 0006PEZZ R SpeakerBuffle LANGS0005PEFW R SpeakerAngle XTASD30P12000 J Screw AE AB SP30 1 SP302 VSP0080P H28A R Speaker PSPAH0091 PEOO R Spacer AM AC Chassis Frame AL 7 LCHSMOO29PEZZ R 8 Not Used A9 QACCL3002PEZZ R 10 QEARCZlOlPEZZ R 11 XTASD40P16000 J 12 LHLDCOOOl PEZZ R 13...

Page 166: ...ckingCase SPAKP0097PEZZ PolystyreneMat SPAKX0399PEZZ BufferMaterial TLABNOOOl PEZZ Serial No Label TLABVOI 67PEZZ BarCodeLabel End of INFRARED REMOTE CONTROL UNIT End of PACKING PARTS SUPPLIED ACCESSORIES EXTENSION CABLES Use for servicing VCR unit ACCESSORIES RRMCG 1046PESA R Infrared Remote Control BA Unit TiNS 5460PEZZ R OperationManual AN QCNW 3778CEZZ J Extension Cable AB to JA QCNW 3780CEZZ ...

Page 167: ...IT 5118X PACKING OF THE SET VT 3418X l Setting positions of the knobs I Power Switch I OFF Polystyrene Bag Batteries Polystyrene mat Ir Buffer material Serial number label Number card MARK Not replacement items 167 ...

Page 168: ...ns of the knobs I Power Switch I OFF 1 Polystyrene Bag Operation manual Guarantee Card Batteries Ir Polysty MARK Ir Not replacement items Serial number label Number card material i I i r i Use 22 staples t0 i t fix the packing i case i a i i 168 ...

Page 169: ...Memo m 169 ...

Page 170: ...S H A R P T98 19 S Printed in Japan 0 w s MW KD ...

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