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13VT-L200

ADJUSTMENT OF THE VCR ELECTRICAL CIRCUITRY

Notes:

»

Before the adjustment:
Electrical adjustments described here are often required after replacement of electronic components and mechanical
parts such as video heads.
Check that the mechanism and all electric components are in good working condition prior to the adjustments,
otherwise adjustments can not be completed.

»

Instruments required:

Dual-trace oscilloscope

Color bar generator

Blank video cassette tape

DC voltmeter

Screwdriver for adjustment

Alignment tape (VROATSV), (VRONBZGS)

»

Adjustment of the VCR should be done in the TV/VCR combinated style. But there is a function to cut off the high
voltage of TV. Namely, you can check only VCR part by taking the wire lead RC off . Therefore you can use function
on the occasion of checking and adjusting VCR part.

Figure 2-1.

Ë 

Test points layout of Main Unit.

Содержание 13VT-CL10

Страница 1: ... 56 BLOCK DIAGRAM OF TV SECTION 58 BLOCK DIAGRAM OF VCR SECTION 60 OVERALL SCHEMATIC DIAGRAM 70 DESCRIPTION OF SCHEMATIC DIAGRAM 72 PRINTED WIRING BOARD ASSEMBLIES 84 REPLACEMENT PARTS LIST 88 PACKING OF THE SET 105 In the interests of user safety Required by safety regulations in some countries the set should be restored to its original condition and only parts identical to those specified should...

Страница 2: ...ceptacle when servicing this chassis X RADIATION AND HIGH VOLTAGE LIMITS 1 Be sure all service personnel are aware of the procedures and instructions covering X radiation The only potential source of X ray in current solid state TV receivers is the picture tube However the picture tube does not emit measurable X Ray radiation if the high voltage is as specified in the High Voltage Check instructio...

Страница 3: ... Using to clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground such as electrical conduit or electrical ground connected to earth ground Use an AC voltmeter having with 5000 ohm per volt or higher sensitivity to measure the AC voltage drop across the resistor For continued protection replacement part...

Страница 4: ...ue celui spécifié et ne pas effectuer de modifications déconseillées du circuit à haute tension 6 Lors de la recherche des pannes et des mesures d essai sur un récepteur qui présente une haute tension excessive éviter de s approcher inutilement du récepteur Ne pas faire fonctionner le récepteur plus longtemps que nécessaire pour localiser la cause de la tension excessive AVERTISSEMENT 1 N entrepre...

Страница 5: ...es pour haute tension puissance etc Les pièces de remplacement qui présentent ces caractéristiques sont identifiées dans ce manuel les pièces électriques qui présentent ces particularités sont PRECAUTIONS A PRENDRE LORS DE LA REPARATION Suite 1 Inspecter tous les faisceaux de câbles pour s assurer que les fils ne soient pas pincés ou qu un outil ne soit pas placé entre le châssis et les autres piè...

Страница 6: ...ANCE 75 ohm unbalanced TUNING RANGES VHF Channels 2 thru 13 UHF Channels 14 thru 69 CATV Channels 1 14 thru 125 EIA Channel Plan VCR SECTION Format VHS Standard Video Recording System Rotary Two Head Helical Scanning Number of Video Heads 4 pcs Video Signal Standard NTSC Color System Tape Width 12 7mm 1 2inch Tape Speed SP 33 35mm sec 1 31 i p s LP 16 67mm sec 0 66 i p s Play back only EP 11 12 mm...

Страница 7: ...7 13VT L200 Description Of Controls FRONT LOCATION OF USER S CONTROL REAR ...

Страница 8: ... CONTROL Continued Remote Control Battery Installation Before using the television prepare the Remote Control Battery Cover Pull Up Remote the battery cover as shown and insert two batteries size AA making sure the polarity matches the and marks inside the battery conpartment ...

Страница 9: ...he rear cover 2 Take out the anode cap CRT PWB connectors K and M coating earth Speaker chip fixing screws and others 3 Take out the main PWB unit and the VCR unit 4 Remove the 5 VCR fixing screws and detach the shielding case DISASSEMBLY AND REASSEMBLY 1 3 2 K M 4 ...

Страница 10: ...gle fixing screws and remove the 1 head amp shielding case fixing screw 7 Remove the 3 mechanism chassis fixing screws and detach the mechanism chassis from the main PWB 8 Remove the 2 main PWB fixing screws and detach the main PWB 9 Remove the 2 power PWB fixing screws and detach the power PWB DISASSEMBLY AND REASSEMBLY Continued 5 7 7 6 8 9 ...

Страница 11: ...SEMBLY Continued For servicing any of the components inside disconnect the lead dressing holder Position the main PWB unit upright as shown below and connect the leads for starting the services GC YC M K S YC FRONT SP PO PG PG S GC PO ...

Страница 12: ...ry for malfunctioning components After the voltage test Mute and bus data 0 Y mute off CIRCUIT PROTECTION The receiver is protected by a 4 0A fuse F701 mounted on PWB A wired into one side of the AC line input X RADIATION PROTECTOR CIRCUIT TEST After service has been performed on the horizontal deflection system high voltage system or B system test the X Radiation protector circuit to ascertain pr...

Страница 13: ...n the remote controller or at the set Table A Select the item you wish to adjust 3 Data number selection Press the volume up or down button to adjust the data number in the upper right hand side of the screen PICTURE 16 2 Figure A The L series SHARP TV VCR COMBINATION have most of the analog setup adjustments eliminated Coil and variable resistor adjustments are now performed digitally by using th...

Страница 14: ...13 VERTICAL PHASE 0 0 7 H PHASE 20 0 31 RF AGC 18 0 63 V AMP 32 0 63 PIF VCO 40 0 127 R CUT OFF 0 0 255 G CUT OFF 0 0 255 B CUT OFF 0 0 255 G GAIN 128 0 255 B GAIN 128 0 255 Y MUTE 0 0 2 0 Normal raster 1 no Y 2 No Vertical BALANCE 32 0 63 TEXT BOX 15 0 127 TEXT PICTURE 20 0 80 CCD LEVEL 7 0 10 OPTION 1 0 3 Data is stored in IC2101 The adjustment is needed to compensate for characteristics of part...

Страница 15: ... whites at low brightness level 7 Select service adjustment item MUTE and reset data to 0 Select service adjustment item COLOR and reset data to obtain normal color level White Balance Adjustment 1 Have unit receive a good local channel 2 Enter the service mode Select service adjustment item COLOR and set to 0 minimum color COLOR does not have to be adjusted if you selected a B W picture or monosc...

Страница 16: ...osition Adjustment 1 Have unit receive a good local channel 2 Enter the service mode and select service adjustment item H PHASE 3 Adjust H PHASE data value so that picture is centered Caption Position Adjustment Horizontal 1 Have unit receive a good local channel 2 Enter the service mode and select service adjustment item TEXT BOX 3 A black text box appears on the screen See Figure B below 4 Adjus...

Страница 17: ...dges should not damage any parts nearby Tighten up the two screws one for fixing the mechanism and the head amplifier shield the other on the main PWB s soldering side and located near the loading motor to fix the mechanism and main PWB Reconnect the FFC cables MH and AA ME and AD Drum Unit and AH between the mechanism and main PWB Parts to pay attention to Start and end sensors Q7703 Q7704 Record...

Страница 18: ...rse guide lever ass y Pulls out the tape and controls the tape drive train height with the upper and lower guides 16 Pinch roller lever ass y Press fits the tape to the capstan during tape running 18 Loading motor A motive power which drives the mechanism It transmits the power to the master cam and cas sette housing control ass y Full Erase Head Supply Pole Base Ass y Supply Reel Disk Sup Main Br...

Страница 19: ...roller via the loading gear T and applies the tape around the drum assembly as well as transmits the power to the loading gears 1 Slow brake Gets in contact with the capstan D D motor linking to the master cam in the slow still mode and brakes it to a certain degree 3 Capstan D D motor A motive power which runs the tape It transmits the power via the Drive belt 4 Drive belt Transmits the power to ...

Страница 20: ...height adjustment Hex Wrench 1 5 mm JiGHW0015 AE This Jig is used with the tension gauge Rotarytransformerclearance adjusting jig There are two gauges used for the tension measurements 300 g and 2 0kg Hex Wrench 1 2 mm JiGHW0012 AE 4 Torque Driver JiGTD1200 CB ADJUSTMENT REPLACEMENT AND ASSEMBLY OF MECHANICAL UNITS The explanation given below relates to the on site general service field service bu...

Страница 21: ...g is used for height adjustment of the reverse guide Guide roller height adjustment drive 10 Alignment Tape X value adjustment gear type screw driver Reverse Guide Height Adjusting Jig Video Audio Hi Fi Audio Track 525 Monoscope 7k 58µm NTSC Color Bar 1k 58µm For X value adjustment 11 12 13 JiGDRiVERH 4 JiGDRiVER 6 JiGRVGH F18 AP BM BU VRONBZGS VROEBZCS CB 525 Monoscope 525 Monoscope 7k 1k 19µm 46...

Страница 22: ...ass y Poor S N ratio no color Poorflatnessoftheenve lope with alignment tape Clean rubber and rubber contact area with the specified cleaning liquid Pinch roller No tape running tape slack No tape running tape slack no fast forward rewind motion Reel belt Cassette not loaded or unloaded Idler ass y Tension band ass y Screen swaying Loading Motor Limiter pulley Supply take up Main brake levers Tape...

Страница 23: ...teeth of casecon drive gear and drive angle gear causes malfunction The cassette cannot be set load and ejection are repeated 3 In the case when you use the magnet screw driver never approach the magnet driver to the A C head FE head and drum 4 When installing or removing take care so that the cassette housing control and tool do not contact the guide pin or drum 5 After installing the cassette ho...

Страница 24: ...grease does not adhere to the brake surface Reassembly Take up reel disk 1 Clean the reel disk shaft and apply grease SC 141 to it 2 Align the phase of the reel disk to that of the reel relay gear and to install a new take up reel disk onto the shaft 3 Check the reel disk height and reassemble the take up main brake ass y Note 1 Take care so that the Tu main brake ass y is not damaged Take care so...

Страница 25: ...ime measurement CHECKING AND ADJUSTMENT OF TAKE UP TORQUE IN REWIND MODE Remove the cassette housing control assembly After short circuiting TP7701 and TP7702 pro vided at the left on the main PWB plug in the power cord then turn on the power Setting 1 Set a torque gauge to zero on the scale Place it on the supply reel disk 2 Press the rewind button 3 To calculate the remaining capacity slowly rot...

Страница 26: ...and make sure that the winding up torque is within setting Adjustment If the playback winding up torque is not within the setting replace the limiter pulley assembly Note When the torque cassette is set put a weight 500g to prevent rise CHECKING AND ADJUSTMENT OF TAKE UP TORQUE IN VIDEO SEARCH REWIND MODE Remove the cassette housing control assembly After short circuiting TP7701 and TP7702 pro vid...

Страница 27: ...wer cord then turn on the power Checking Press the play button to set the playback mode CCW 500g T 120 Weight to prevent float 500g Figure 1 13 Figure 1 14 Checking 1 Set a cassette tape push the REC button to place the unit in the SP record mode Now check the tension pole position 1 Detach the pinch roller from the capstan shaft Do not separate excessively Or the pinch lever and pinch double acti...

Страница 28: ...00g Weight to prevent float 500g Cassette torque meter Tension pole adjuster adjusting range Adjust so that the delta mark of tension pole adjuster is within 90 range left right CHECKINGANDADJUSTMENTOFRECORD PLAYBACK BACK TENSION Remove the cassette housing control assembly After short circuiting TP7701 and TP7702 pro vided at the left on the main PWB plug in the power cord then turn on the power ...

Страница 29: ...he setting CW direction 8 8 to 23 5mN m 90 to 240gf cm CCW direction 3 9 to 9 8mN m 40 to 100gf cm Tension arm Tension spring CW CCW CW Supply reel disk Torque gauge Torque gauge CCW Take up reel disk A B Checking the brake torque at the take up side Figure 1 22 Remove the cassette housing control assembly After short circuiting TP7701 and TP7702 pro vided at the left on the main PWB plug in the p...

Страница 30: ...1 5 to 2 0kgf cm Figure 1 24 Solder Never touch the head 10 8mm 10 8mm A C head plate 2 Spring 1 Azimuth screw Height screw Tilt screw Figure 1 23 3 Replacement 1 Solder the removed PWB to the new head assembly 2 Adjust the height from the A C head arm lower sur face to the A C head plate to 10 8mm with slide calipers 3 places of azimuth screw section tilt screw section and A C head front section ...

Страница 31: ...justment box driver JiGDRiVER11055 13 38mm Box driver Height adjusting nut CCW Reverse guide height adjusting jig Reverse guide height adjusting jig Reverse guide Mechanism chassis A C HEAD HEIGHT ROUGH ADJUSTMENT Setting 1 Set the cassette tape in the unit 2 Press the PLAY button to put the unit in the playback mode 3 Roughly adjust the height of the A C head by turning the height screw until the...

Страница 32: ...e crease at the fixing guide flange Play back the tape and check for tape crease at the fixing guide flange 1 If there is no tape crease Turn the tilt screw clockwise so that tape crease appears once at the flange and then return the tilt screw so that the crease disappears 2 If there is tape crease Turn counterclockwise the tilt screw so that the tape crease disappears Reference If the tilt screw...

Страница 33: ...e roller is then rotated in the clockwise direction to flatten the envelope Figure 1 35 4 A C head X value adjustment 1 Tentatively fix A C head arm screws 1 and 2 by the method described in Page 30 Replacement 3 2 After shortcircuiting TP7701 and TP7702 plug in the powercord thenturnonthepower Andplaybackthe alignment tape VROEFZCS As a result the auto tracking is automatically cancelled so that ...

Страница 34: ...DJUSTMENT OF REVERSE GUIDE Capstan D D motor Capstan D D motor control PWB 2 1 Reel belt REPLACEMENT OF DRUM D D MOTOR 1 Set the eject mode 2 Withdraw the main power plug from the socket Removal Perform in numerical order 1 Disconnect the FFC cable 1 2 Unscrew the D D stator assembly fixing screws 2 3 Take out the D D stator assembly 3 4 Unscrew the D D rotor assembly fixing screws 4 5 Take out th...

Страница 35: ...ustment After that perform also the electrical adjustment Playback switching point adjustment X position adjustment and check 7 After replacing the drum clean the drum Figure 1 39 2 1 3 ASSEMBLING OF PHASE MATCHING MECHANISM COMPONENTS Assemble the phase matching mechanism com ponents in the following order 1 Assemble the pinch roller assembly and pinch drive cam 2 Mounting the shifter on the back...

Страница 36: ...ive lever ass y Fit the pinch drive cam so that the notch of pinch drive cam aligns with the dent of pinch drive lever assembly Fit the pinch drive cam so that the notch of pinch drive lever assembly aligns with the half round notch of chassis Turn the reverse guide lever assembly counterclockwise to the stopper 2Insert Pinch Roller Pinch Double Action Lever Ass y Figure 1 41 2 Figure 1 41 3 3Inse...

Страница 37: ...ar T Insert point 3 Insert point 2 Insert point 4 Insert point 6 Release point 3 Shaft 1 Shaft 1 Shaft 4 1 Make sure that the loading gear is at the point 1 as shown below 2 Install paying attention to 6 insertion points and 3 release points 3 For the phase matching at the insertion point 1 see the point 2 as shown below 4 Finally fix the inserts 1 and 4 Figure 1 43 Rotation point 2 Phase matching...

Страница 38: ...con drive gear round mark with the half round notch of master cam E ring XRESJ30 06000 Master cam Fully turn clockwise Fully turn counterclockwise Figure 1 44 1 Face the wide tooth side ward Master cam Casecon drive gear 10 2 mm Round mark Half round notch 0 2 0 2 Apply grease No grease REPLACEMENT OF LOADING MOTOR Removal Replacement 1 Remove the loading motor and install the replace ment loading...

Страница 39: ...ive Gear R ASSEMBLY OF CASSETTE HOUSING 1 Drive Gear and R Drive angle ass y Figure 1 47 MSPRT0381AJFJ Apply grease Apply grease Apply grease LANGF9592AJFW Top surface should be free from scratches or soil Drive angle Drive gear R Frame Figure 1 48 ...

Страница 40: ...ents otherwise adjustments can not be completed Instruments required Dual trace oscilloscope Color bar generator Blank video cassette tape DC voltmeter Screwdriver for adjustment Alignment tape VROATSV VRONBZGS Adjustment of the VCR should be done in the TV VCR combinated style But there is a function to cut off the high voltage of TV Namely you can check only VCR part by taking the wire lead RC o...

Страница 41: ...e When the unit receives this test code in the playback mode the unit is turned into the adjustment mode for the head switching point and T is displayed at the position of CH number on the screen This function is available to the remote control RRMCG1331PESA ADJUSTMENT OF SLOW TRACKING PRESET Measuring Monitor screen instrument Mode SP EP slow motion playback Input signal Self recording tape Test ...

Страница 42: ...unction is available to the remote control RRMCG1331PESA ADJUSTMENT OF STILL PICTURE VERTICAL SYNC Measuring Monitor screen instrument Mode EP still picture playback Input signal Self recording tape Test point Monitor screen Control CH TR buttons Specification No Vertical jitter 1 Play back the EP Self recorded tape in the still mode 2 Using the CH TR buttons on the remote control or on the front ...

Страница 43: ...5V lines normal Check power circuit Check poor soldering Check the signal line of sys con reset all the way up to pin 22 of IC2001 Check the power key input to IC2001 and serial datas clocks between IC2001 and IC7701 Check power circuit Check the sensor inputs to IC7701 from mechanism CAM switches start end sensors and reel sensors KEY IN TROUBLESHOOTING FLOW CHART NO 1 2 Key in input for VCR is n...

Страница 44: ... loaded Does end sensor pulse at pin 3 of IC7701 change from L to H level when the cassette tape is loaded Does start sensor pulse at pin 2 of IC7701 change from L to H level when the cassette tape is loaded Check the start sensor and all the way up to IC7701 Check the end sensor and all the way up to IC7701 Check cam switches and all the way up to IC7701 FLOW CHART NO 1 4 NO NO NO NO NO NO NO YES...

Страница 45: ...C9V and PC5V lines Are serial clock pulse and TV data pulse applied to pins 67 and 66 of IC7701 from IC2001 Are system control data pulse and system control ready pulse applied to pins 36 and 35 of IC2001 from IC7701 Check between the MC connector and IC7701 and between the MC connector and pin 75 of IC7701 CAPSTAN MOTOR TROUBLESHOOTING The capstan motor fails to run Is the voltage more than about...

Страница 46: ... Is the voltage more than about 2 6V applied at pin 1 of ME connector Check between the ME connector and all the way up to pin 86 of IC7701 Is 5V at pin 7 of ME connector Check replace the drum motor Is 12V at pin 4 of ME connector Check the AT 5V line NO NO NO YES YES YES Check or replace IC7701 The drum motor runs only for a few seconds Check pin 76 of IC7701 Check the drum motor Are there the t...

Страница 47: ...01 Check the composite sync signal at pin 14 of IC2201 Q2201 and Q2202 Is there the head switching pulse at pin 18 of IC7701 Is there the drum FG signal at pin 87 of IC7701 Is there the drum control output at pin 78 of IC7701 Check the signal line between pin 7 of AD and pin 76 of IC7701 Check PG and FG to pins 5 and 3 of the connector ME and the drum motor Is there the drum control voltage applie...

Страница 48: ... of IC2201 Q2201 and Q2202 up to pin 84 of IC7701 Replace IC7701 Replace A C head Check A Check B In case of NO GOOD Does there appear the V sync at pin 84 at IC7701 Is there REC CTL signal output at pins 92 91 of IC7701 Is there capstan control signal at pin 77 of IC7701 Are REC and or PB mode inoperative Is the FFC AA MH normal Does the A C head operate normally Adjust the height of the A C head...

Страница 49: ...in 25 of IC2201 and pin 14 of IC402 FLOW CHART NO 1 13 NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES RECORDING MODE TROUBLESHOOTING Recording LUMINANCE is not possible Recording is possible but without color Is there a signal at pin 29 of IC2201 Is there a signal at pin 57 of IC2201 Check parts around and pins 27 38 36 and 29 of IC2201 Check parts around pins 30 and 31 of IC2201 Is there a ...

Страница 50: ...3301 Is there a signal at pin 57 of IC2201 Is there a signal at pin 27 of IC2201 Is there a signal at pin 25 of IC2201 Check between pin 25 of IC2201 and all the way up to pin 14 of IC402 Check peripheral circuits of X5502 Check between pin 30 of IC3301 and all the way up to pin 57 of IC2201 Check the I 2 C bus data and clock at pins 8 and 7 of IC2201 Is there a signal at pin 12 of IC2201 Is there...

Страница 51: ...201 Check the I2C bus data and clock signal line Replace IC2201 Is there a signal at pin 87 or 91 of IC2201 Is the supply voltage of 5V feed to pin 84 of IC2201 Is there a signal at pin 85 of IC2201 Check between pin 85 of IC2201 and pin 1 of IC402 Is voltage of pins 86 and 88 of IC2201 normal Is there H level at pin 70 of IC2201 Check BIAS CTL H line Check PC 9V line Is there a signal at pin 81 o...

Страница 52: ... a signal at pin 85 of IC2201 Check BIAS CTL H line Replace defective parts Readjust azimuth and height Replace A C head Check AUDIO MUTE H line Replace IC2201 Is there L level at pin 70 of IC2201 Are azimuth and height of the A C head properly adjusted Check line between pin 85 of IC2201 and pin 1 of IC402 Are the FFC MH AA and the PB AMP s peripheral parts around pins 75 78 of IC2201 normal Clea...

Страница 53: ...thru D704 L701 and R701 Is AC cord connected Is 170V DC applied to C705 Check T701 and adjacent parts Is 16V DC applied to pin 4 of IC701 Check IC701 R717 Check IC701 and adjacent parts CRT connector GC1 GC5 bias check The Fuse is again blown out D701 D702 D703 D704 D705 Connect AC cord F701 Check Normal Normal IC701 Check Normal Abnomal IC401 iX3253CE Normal Normal C854 Blown out Replace the Fuse...

Страница 54: ...he IC401 and adjacent parts Check IC2001 Check the tuner AGC Check the IC351 Does the noise level increase at max Contrast Brightness and Sound Control Is there a signal at pin 43 of IC401 Noise increases but no signal is received Is there a signal at pin 41 of IC401 Picture noise decrease but sound level varies greatly Check the tuner bias Normal Abnormal Abnormal Check IC401 Normal Check the Tun...

Страница 55: ...and GND lines Check key input terminals Replace the infrared remote control as required Check pin 10 of IC2001 and or receiver Reposition the set not to be exposed to strong light Is L pulse given out of pin 1 of the receiver and received at pin 10 of IC2001 when the infrared remote control is activated No operation is possible from the infrared remote control Does waveform appear at pin 8 of IC35...

Страница 56: ...56 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H CHASSIS LAYOUT PWB B PWB D PWB C ...

Страница 57: ...57 13VT L200 17 16 19 18 15 14 13 12 11 10 PWB A ...

Страница 58: ...58 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF TV SECTION ...

Страница 59: ...59 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 60: ...60 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë OVERALL BLOCK DIAGRAM ...

Страница 61: ...61 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 62: ...62 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë SERVO PROCESS BLOCK DIAGRAM ...

Страница 63: ...63 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 64: ...64 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë SYSTEM CONTROL BLOCK DIAGRAM ...

Страница 65: ...65 13VT L200 17 16 19 18 15 14 13 12 11 10 6 5 4 3 2 1 A B C D E F G H Ë SAFETY DEVICE BLOCK DIAGRAM ...

Страница 66: ...66 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë VIDEO SIGNAL FLOW BLOCK DIAGRAM ...

Страница 67: ...67 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 68: ...68 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM OF VCR SECTION Ë AUDIO BLOCK DIAGRAM ...

Страница 69: ...69 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 70: ...70 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H OVERALL SCHEMATIC DIAGRAM ...

Страница 71: ...71 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 72: ...nless otherwise indicated 2 All voltages measured with 1000µV B W or Color signal WAVEFORM MEASUREMENT CONDI TIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart waveforms are measu...

Страница 73: ...73 13VT L200 17 16 19 18 15 14 13 12 11 10 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit ...

Страница 74: ...74 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 1 Unit TV Section ...

Страница 75: ...75 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 76: ...76 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 2 Unit TV Section ...

Страница 77: ...77 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 78: ...78 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM POWER Unit TV Section ...

Страница 79: ...79 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 80: ...80 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN Unit VCR 1 Section ...

Страница 81: ...81 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 82: ...82 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN Unit VCR 2 Section ...

Страница 83: ...83 13VT L200 17 16 19 18 15 14 13 12 11 10 ...

Страница 84: ...84 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H PRINTED WIRING BOARD ASSEMBLIES PWB B CRT Unit Wiring Side 6 5 4 3 2 1 A B C D E F G H PWB D FRONT AV Unit Wiring Side ...

Страница 85: ...85 13VT L200 17 16 19 18 15 14 13 12 11 10 6 5 4 3 2 1 A B C D E F G H PWB C POWER Unit Wiring Side ...

Страница 86: ...86 13VT L200 8 7 10 9 6 5 4 3 2 1 A B C D E F G H 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Wiring Side ...

Страница 87: ...87 13VT L200 17 16 19 18 15 14 13 12 11 10 6 5 4 3 2 1 A B C D E F G H PWB A MAIN Unit Chip Parts Side ...

Страница 88: ... replacement parts shown in this service manual may create shock fire or other hazards HOW TO ORDER REPLACEMENT PARTS To have your order filled promptly and correctly please furnish the fol lowing informations 1 MODEL NUMBER 2 REF NO 3 PART NO 4 DESCRIPTION in USA Contact your nearest SHARP Parts Distributor to order For location of SHARP Parts Distributor Please call Toll Free 1 800 BE SHARP LIST...

Страница 89: ...Diode AC D656 RH EX0631GEZZ J Zener Diode AA å D710 RH DX0131CEZZ J Diode AC D2001 RH DX0475CEZZ J Diode AB D2002 RH DX0475CEZZ J Diode AB D2003 VHD1SS119 1 J Diode AB D2060 RH DX0475CEZZ J Diode AB D2201 RH DX0475CEZZ J Diode AB D2202 RH DX0475CEZZ J Diode AB D2203 RH DX0475CEZZ J Diode AB D3103 RH DX0475CEZZ J Diode AB D3104 RH EX0654GEZZ J Zener Diode AB D3123 RH DX0475CEZZ J Diode AB D7701 RH ...

Страница 90: ...00 16V EL AC C354 VCEA0A1CW477M J 470 16V EL AC C355 VCEA0A1CW226M J 22 16V EL AB C356 VCQYTA1HM104K J 0 1 50V Mylar AC C357 VCKYCY1CF474Z J 0 47 16V Ceramic AB C360 VCKYCY1HF103Z J 0 01 50V Ceramic AA C361 VCEA0A1CW337M J 330 16V EL AC C401 VCCCCY1HH271J J 270p 50V Ceramic AA C402 VCCCCY1HH470J J 47p 50V Ceramic AA C403 VCCCCY1HH100D J 10p 50V Ceramic AA C405 VCEA0A1HW105M J 1 0 50V EL AB C406 VC...

Страница 91: ... C3104 VCKYCY1HB102K J 1000p 50V Ceramic AA C3105 VCCCCY1HH221J J 220p 50V Ceramic AA C3107 VCKYCY1HF103Z J 0 01 50V Ceramic AA C3108 VCEAKA0JW107M J 100 6 3V EL AB C3109 VCKYCY1CB104K J 0 1 16V Ceramic AB C3110 VCKYCY1HB222K J 2200p 50V Ceramic AA C3111 VCEA9A0JW107M J 100 6 3V EL AB C3112 VCKYPA1HF103Z J 0 01 50V Ceramic AA C3113 VCCCCY1HH101J J 100p 50V Ceramic AA C3114 VCCCCY1HH150J J 15p 50V ...

Страница 92: ...c AA C7760 VCKYCY1HB102K J 1000p 50V Ceramic AA C7761 VCKYCY1HB102K J 1000p 50V Ceramic AA RESISTORS M Ox Metal Oxide RJ1 VRN MD2AL000J J 0 0 1W Metal Film AA RJ2 VRN MD2AL000J J 0 0 1W Metal Film AA RJ3 VRN MD2AL000J J 0 0 1W Metal Film AA RJ7 VRN MD2AL000J J 0 0 1W Metal Film AA RJ8 VRN MD2AL000J J 0 0 1W Metal Film AA RJ9 VRN MD2AL000J J 0 0 1W Metal Film AA RJ10 VRN MD2AL000J J 0 0 1W Metal Fi...

Страница 93: ...0J J 0 0 1W Metal Film AA R453 VRD RA2EE474J J 470k 1 4W Carbon AA R454 VRD RA2EE184J J 180k 1 4W Carbon AA R456 VRN MD2AL273J J 27k 0 1W Metal Film AA R466 VRN VV3AB1R5J J 1 5 1W Metal Film AA R501 VRN MD2AL101J J 100 0 1W Metal Film AA R504 VRD RA2BE471J J 470 1 8W Carbon AA R505 VRD RA2BE101J J 100 1 8W Carbon AB R506 VRD RA2BE683G J 68k 1 8W Carbon AA R507 VRD RA2BE104G J 100k 1 8W Carbon AA R...

Страница 94: ...279 VRD RA2BE102J J 1 0k 1 8W Carbon AA R3102 VRD RA2BE470J J 47 1 8W Carbon AA R3104 VRN MD2AL561J J 560 0 1W Metal Film AA R3107 VRN MD2AL102J J 1 0k 0 1W Metal Film AA R3108 VRN MD2AL102J J 1 0k 0 1W Metal Film AA R3109 VRD RA2BE152J J 1 5k 1 8W Carbon AA R3110 VRN MD2AL102J J 1 0k 0 1W Metal Film AA R3111 VRN MD2AL103J J 10k 0 1W Metal Film AA R3112 VRN MD2AL102J J 1 0k 0 1W Metal Film AA R311...

Страница 95: ...10k 0 1W Metal Film AA R7735 VRN MD2AL103J J 10k 0 1W Metal Film AA R7736 VRS CY1JF103J J 10k 1 16W M Ox AA R7738 VRN MD2AL103J J 10k 0 1W Metal Film AA R7739 VRN MD2AL562J J 5 6k 0 1W Metal Film AA R7740 VRN MD2AL103J J 10k 0 1W Metal Film AA R7743 VRD RA2BE103J J 10k 1 8W Carbon AA R7744 VRD RA2BE103J J 10k 1 8W Carbon AA R7745 VRD RA2BE103J J 10k 1 8W Carbon AA R7747 VRD RA2BE102J J 1 0k 1 8W C...

Страница 96: ...P0593CEZZ J Switch Power AE S7701 QSW F0042AJZZ J Switch Rec Tip AG MISCELANEOUS PARTS å F701 QFS B4023CEZZ J Fuse 4A AC FB2001 RBLN 0037CEZZ J Ferrite Bead AB FB7701 RBLN 0036CEZZ J Ferrite Bead AB FB7702 RBLN 0036CEZZ J Ferrite Bead AB FH701 QFSHD1013CEZZ J Fuse Holder AC FH702 QFSHD1014CEZZ J Fuse Holder AC P350 QPLGN0361CEZZ J Plug 3 pin O AB P401 QPLGZ0840CEZZ J Plug 8 pin M AF P402 QPLGZ1040...

Страница 97: ...1HL471J J 470p 50V Ceramic AA C709 VCEA0A1HW107M J 100 50V EL AB C710 VCQYTA1HM222J J 2200p 50V Mylar AA C711 VCFYFA1HA224J J 0 22 50V Mylar AB å C712 RC KZ0312CEZZ J 0 0047 Ceramic AD C722 VCKYPA1HB102K J 1000p 50V Ceramic AA C723 VCKYPA1HB102K J 1000p 50V Ceramic AA C724 VCKYPA1HB102K J 1000p 50V Ceramic AA C725 VCKYPA1HB102K J 1000p 50V Ceramic AA C726 VCEAGH1EW228M J 2200 25V EL AE C727 VCEAHV...

Страница 98: ...5 LX GZ3001PEZZ R Screw AB HM706 LX GZ3001PEZZ R Screw AB HM707 LX GZ3001PEZZ R Screw AB HM708 LX GZ3001PEZZ R Screw AB HM709 LX GZ3001PEZZ R Screw AB HM710 LX GZ3001PEZZ R Screw AB QCNW 2211PEZZ R Connecting Cord AD QCNW 6008PEN3 R Connecting Cord PG AE LX BZ3049GEFD J Screw AA LX BZ3100CEFD J Screw AA PWB C DUNTK9490WEW4 POWER Unit Continued TRANSISTORS Q852 VS2SC2229O 1E J 2SC2229 AD Q854 VS2SC...

Страница 99: ...45 NGERW1066AJZZ V Worm Wheel Gear AD 46 NiDR 0018AJZZ V Idler Wheel Ass y AK 47 NPLYV0162AJZZ V Motor Pully AD 48 NPLYV0163AJZZ V Limitter Pulley Ass y AM 49 NROLP0131GEZZ J Guide Roller AL 50 NSFTP0032AJZZ V Tension Pole Adjuster AB 51 MSPRC0217AJFJ V Guide Roller Spring AC 52 PREFL1011AJZZ V Light Guide AE 53 QCNW 0247AJZZ V FFC for Drum Motor AG MECHANISM CHASSIS 55 QCNW 0272AJZZ V FFC for A C...

Страница 100: ... 20 18 214 19 29 49 51 8 11 203 49 51 7 58 52 4 25 24 2 33 15 1 50 218 207 67 207 63 62 66 66 66 53 65 216 41 61 21 38 17 208 60 47 44 6 30 36 9 39 45 219 10 30 40 27 43 46 43 35 35 37 34 23 62 48 209 210 211 212 213 223 5 26 32 68 69 224 224 55 16 202 222 221 201 202 202 220 59 70 57 71 56 MECHANISM CHASSIS PARTS ...

Страница 101: ...P0281AJ00 V Door Open Lever AD 308 MSLiF0076AJFW V Slider 309 MSPRD0151AJFJ V Proof Lever R Spring AB 310 MSPRD0166AJFJ V Drive Gear R Spring AE 311 MSPRP0175AJFJ V Cassette Spring AE 312 MSPRT0381AJFJ V Double Action Spring AC 313 NGERH1278AJZZ V Drive Gear L AE 314 NGERH1309AJZZ V Drive Gear R 315 NGERR1008AJ00 V Double Action Rack Gear AE 316 NGERR3005AJFW V Drive Angle Gear AG 317 NSFTD0041AJF...

Страница 102: ...Bottom Shield AG 9 LANGT0038PEFW R Fixing Metal AC 10 QEARC1423PEZZ R Coating Earth AG 11 LCHSM0072PEKZ R Chassis Frame AQ 13 PSPAG0022PE00 R Spacer AC 14 LX TZ0012PEFD R Screw AC 15 PSLDM0253PEFW R Shield AC 16 LHLDW0003PEKZ R ADG Holder AB 17 LHLDW1047PEZZ R Holder AB 19 LHLDW1065PEKZ R Holder AD 20 PSPAG0004PEZZ R Spacer AB 21 TLABM1462PEZZ R Model Label AB 22 LX TZ0013PEFD R Screw AD 23 LHLDW1...

Страница 103: ...T AND MECHANICAL PARTS 6 5 4 3 2 1 A B C D E F G H 1 10 1 12 1 6 1 3 1 1 5 14 30 1 9 1 2 4 24 28 15 11 13 24 3 25 40 7 26 20 22 9 22 33 41 36 35 6 10 16 1 1 11 1 13 1 4 1 9 22 32 21 27 8 31 20 28 17 34 24 2 23 26 PWB D PWB A 19 PWB B 22 16 25 25 42 43 1 8 1 8 1 5 38 39 PWB C 26 24 1 7 ...

Страница 104: ...CAUH0011PEZZ R Caution Card AB TiNS 6665PEZZ R Operation Manual AG QANTR0018PEZZ R Rod Antenna AQ RUNTK0165CEZZ J Antenna Adaptor AM RRMCG1331PESA R Infrared R C Unit AV SPAKC6388PEZZ Packing Case SSAKA0031PEZZ Polyethylene Bag SPAKP0095PEZZ Polyethylene Sack SPAKX2671PEZZ Buffer Material TLABN0001PEZZ Serial Number Label TLABK0002PEZZ Number Card TLABZ0125PEZZ Label ...

Страница 105: ...TTING POSITIONS OF THE KNOBS Power SW OFF REAR Use 22 staples to fix the packing case MARK Not Replacement Items FRONT Buffer Material Top and Bottom Polystyrene Bag Infrared R C Unit Operation Manual Guarantee Card Batteries Rod Antenna Polyethylene Sack Packing Case Number Card Serial Number Label ...

Страница 106: ... publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher TQ0613 S Feb 1999 Printed in Japan KI KG SHARP CORPORATION AV Systems Group Quality Reliability Control Center Yaita Tochigi 329 2193 Japan ...

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