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Страница: 45 / 93

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S1

S2

S3

T1

T2

T3

U1

U2

U3

V1

V2

V3

W1

W2

W3

X1

X2

X3

Main 4/5 Schematic Diagram

1-9-9

1-9-10

T7401SCM4

NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
FIRE, REPLACE ONLY WITH THE SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.

4A/125V

CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.

VOLTAGE CHART (Power off mode)

Ref. No.

S

D

G

Q601

0.0

137.0

1.8

Ref. No.

E

C

B

Q602

0

3.2

0.5

Q605

0

7.0

0

Q606

7.0

7.0

7.0

Q608

5.0

7.5

5.7

Q609

6.0

6.5

6.6

Q610

0.7

4.7

1.3

Q611

0

2.4

0

Q612

5.3

5.3

0.8

MAIN 4/5

Ref No.

Position

Ref No.

Position

IC601

W-2

Q608

T-2

IC602

T-3

Q609

T-2

Q610

T-2

Q601

X-2

Q611

T-1

Q602

W-2

Q612

S-2

Q604

V-2

Q605

U-2

CN601

X-2

Q606

U-3

Q607

U-2

VR601

V-2

ICS

TRANSISTORS

TRANSISTORS

VARIABLE RESISTOR

CONNECTOR

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Содержание 6319CD/EWC1903

Страница 1: ... Adjustment Procedures I Schematic Diagrams I CBA s Sec 2 Deck Mechanism Section I Standard Maintenance I Alignment for Mechanism I Disassembly Assembly of Mechanism Sec 3 Exploded views and Parts List Section I Exploded views I Parts List 19 COLOR TV VCR COMBINATION 6319CD EWC1903 ...

Страница 2: ...injury to service personnel The possibility exists that improper ser vice methods may damage the equipment It also is important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE Funai could not possibly know evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Funai has not und...

Страница 3: ...tructions 1 6 1 Electrical Adjustment Instructions 1 7 1 Block Diagrams 1 8 1 Mechanical Trouble Indicator 1 8 13 Power Supply Trouble Shooting Guide 1 8 15 Schematic Diagrams CBA s and Test Points 1 9 1 Waveforms 1 10 1 Wiring Diagrams 1 11 1 System Control Timing Charts 1 12 1 IC Pin Function Descriptions 1 13 1 Lead Identifications 1 14 1 Sec 1 Main Section I Specifications I Preparation for Se...

Страница 4: ...10 3 High Voltage kV 25 Description Condition Unit Nominal Limit 1 Misconvergence Center m m 0 4 Corner m m 2 1 Side m m 1 4 2 Tint Control Range deg 30 3 Contrast Control Range dB 6 4 Brightness APL 100 ft L 35 24 5 Color Temperature K 9200 Description Condition Unit Nominal Limit 1 Horizontal Resolution R P Line 230 200 2 Jitter Low R P µS 0 05 0 2 3 S N Chroma AM SP R P dB 38 33 PM SP R P dB 36...

Страница 5: ...rop slightly below these specifications Limit specifications represent the abso lute worst condition that still might be considered acceptable In no case should a unit fail to meet limit specifica tions Description Condition Unit Nominal Limit 1 Audio Output Power Max R P W 1 0 0 8 2 Audio S N W LPF R P dB 40 36 3 Audio Distortion W LPF R P 3 0 5 0 4 Audio Freq Response 10dB Ref 1KHz 200Hz R P 8kH...

Страница 6: ...ongs tied together and touch the other ohmme ter lead in turn to each tuner antenna input ex posed terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2 mego hm an abnormality exists that must be corrected before the instrument is returned to the customer Repeat this test with the instrument AC switch in the off position d ...

Страница 7: ...d to the ground side of the AC power source To confirm that the AC power plug is inserted correctly with an AC volt meter measure between the chassis and a known earth ground If a voltage reading in excess of 1 0V is obtained remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground b Some TV receiver chassis...

Страница 8: ...not contact sharp edged or pointed parts H When a power cord has been replaced check that 5 6 kg of force in any direction will not loosen it I Also check areas surrounding repaired locations J Use care that foreign objects screws solder drop lets etc do not remain inside the set K Crimp type wire connector When replacing the power transformer in sets where the connections between the power cord a...

Страница 9: ... cord plug prongs and externally exposed accessible parts RF terminals an tenna terminals video and audio input and output ter minals microphone jacks earphone jacks etc Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 2 and following table Table 2 Leakage curren...

Страница 10: ...s The Following Procedures are Recom mended for the Replacement of the Lead less Components Used in this Unit 1 Preparation for replacement a Soldering Iron Use a pencil type soldering iron less than 30 watts b Solder Eutectic solder Tin 63 Lead 37 is recom mended c Soldering time Do not apply heat for more than 4 seconds d Preheating Leadless capacitor must be preheated before installation 130 C ...

Страница 11: ...pins of the Flat Pack IC you can remove it easily Fig S 1 3 b Lift each lead of the Flat Pack IC upward one by one using a sharp pin or wire to which solder will not adhere iron wire When heating the pins use a fine tip soldering iron or a hot air Desoldering Machine Fig S 1 4 With Iron Wire a Using desoldering braid remove the solder from all pins of the Flat Pack IC When you use solder flux whic...

Страница 12: ...g Tape Fig S 1 2 Flat Pack IC Desoldering Braid Soldering Iron Fig S 1 3 Fine Tip Soldering Iron Sharp Pin Fig S 1 4 To Solid Mounting Point Soldering Iron Iron Wire or Hot Air Blower Fig S 1 5 Example Pin 1 of the Flat Pack IC is indicated by a mark Fig S 1 6 Presolder CBA Flat Pack IC Fig S 1 7 ...

Страница 13: ...ded to remove any static electricity that may be charged on the body Ground for Work Bench Be sure to place a conductive sheet or copper plate with proper grounding 1MΩ on the work bench or other surface where the semiconductors are to be placed Because the static electricity charge on the clothing will not escape through the body grounding band be careful to avoid contacting semiconductors to clo...

Страница 14: ...ain CBA When deck mechanism assembly is removed from the Main CBA due to servicing this switch can not be oper ated automatically Preparing 2 1 To eject the tape press the STOP EJECT button on the unit or Remote Control 2 When you want to record during the Service mode press the Rec button while depressing SW211 REC SAFETY SW on the Main CBA Key Adjustment Mode MENU Picture adjustment mode Press t...

Страница 15: ...reen by pressing repeatedly this button on the TV VCR TRACKING function Press to minimize video noise lines or dots on screen during playback mode 6 Remote Sensor Window Receives the infrared signals from the remote control 7 STOP button Press to stop the tape motion EJECT button Press in the Stop mode to remove tape from TV VCR L button Press to select setting modes from the on screen menu Press ...

Страница 16: ...ess to select desired channels for viewing or recording To select channels from 1 to 9 first press the 0 button and then 1 to 9 100 button When selecting cable channels which are higher than 99 press this button first then press the last two digits To select channel 125 first press the 100 button then press 2 and 5 16 MENU button Press to display the main menu on the TV screen 17 DISPLAY button Di...

Страница 17: ...enu on the TV screen by pressing repeatedly this button on the TV VCR TRACKING function Press to minimize video noise lines or dots on screen during playback mode 6 Remote Sensor Window Receives the infrared signals from the remote control 7 STOP button Press to stop the tape motion EJECT button Press in the Stop mode to remove tape from TV VCR L button Press to select setting modes from the on sc...

Страница 18: ...ess to select desired channels for viewing or recording To select channels from 1 to 9 first press the 0 button and then 1 to 9 100 button When selecting cable channels which are higher than 99 press this button first then press the last two digits To select channel 125 first press the 100 button then press 2 and 5 16 MENU button Press to display the main menu on the TV screen 17 DISPLAY button Di...

Страница 19: ...crews S 2 5 Refer to the following Reference Notes in the Table Reference Notes in the Table 1 Removal of the Rear Cabinet Remove screws 4 S 1 and S 2 Caution Discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap 2 Removal of the Tray Chassis Discharge the Anode Lead of the CRT with the CRT Ground Wire before removing the Anode Cap Disconnect the following Anod...

Страница 20: ...1 6 2 T7400DC Fig 1 S 1 S 1 S 1 S 2 1 REAR CABINET ANT 1 REAR CABINET S 1 S 1 S 2 S 1 S 1 Fig 2 ...

Страница 21: ...1 6 3 T7400DC S 5 S 4 S 4 S 5 S 5 S 5 S 5 S 3 S 3 2 TRAY CHASSIS 3 DECK UNIT 4 MAIN CBA S 3 Fig 3 ...

Страница 22: ...1 6 4 T7400DC Fig 4 S 6 S 6 S 6 S 6 5 CRT CRT CBA ANODE CAP ...

Страница 23: ...CL502A CL501A SCREEN CN505 CN801 CN601 CN571 FOCUS CRT CBA AC CORD CL403 FE HEAD CYLINDER ASSEMBLY AC HEAD ASSEMBLY CAPSTAN MOTOR DECK UNIT MAIN CBA CL401 CL502B CL201 CL402 CL501B CRT ANODE GND TO SPEAKER TO DEGAUSS COIL ...

Страница 24: ...hort circuit pins 10 and 17 of the microproces sor with a jumper wire How to Set up the Service mode Service Mode 1 Use the service remote control unit 2 Turn the power on 3 Press WAKE UP SLEEP button on the service remote control unit 1 DC 114V B Adjustment Purpose To obtain correct operation Symptom of Misadjustment The picture is dark and unit does not operate correctly Note D613 Cathode B C613...

Страница 25: ...3 Y DL Time Y SW LPF Adjustment Purpose To get minimum leakage of the color signal carrier Symptom of Misadjustment If Y DL Time Adjust ment is incorrect stripes will appear on the screen 1 Enter the Service Mode See page 1 4 1 2 Y DL Time Adjustment Press 0 button on the service remote control unit twice to show D T on the display Y SW LPF Adjustment Press 0 button on the service remote control u...

Страница 26: ...the top and bottom of the monoscope pattern are equal to each other 5 H Shift Adjustment Purpose To obtain correct horizontal position and size of screen image Symptom of Misadjustment Horizontal position and size of screen image may not be properly displayed 1 Enter the Service mode See page 1 4 1 Press 8 button on the remote control unit and select H P Mode 2 Input monoscope pattern 3 Press CH o...

Страница 27: ... o p until the horizontal line becomes white 9 Input the White Raster Signal from Video In 10 Choose CUT OFF DRIVE mode then press 4 Adjust the RED DRIVE as needed with the CH o p buttons to get the following value X 286 Y 294 11 Choose CUT OFF DRIVE mode then press 5 Adjust the BLUE DRIVE as needed with the CH o p buttons to get the following value X 286 12 Turn the power off and on again 7 Sub B...

Страница 28: ... CCS Text Box Location When replacing the CRT the CCS Box might not stay in appropriate position Then replace micro computer Note This adjustment automatically done by the microcomputer The following 2 adjustments normally are not attempted in the field They should be done only when replacing the CRT then adjust as a preparation 11 Purity Adjustment Purpose To obtain pure color Symptom of Misadjus...

Страница 29: ...s at the center of the screen by rotating RB G C P Magnet See Fig 8 4 Fix the C P Magnets by tightening the Ring Lock 5 Remove the DY Wedges and slightly tilt the Deflec tion Yoke horizontally and vertically to obtain the best overall convergence 6 Fix the Deflection Yoke by carefully inserting the DY Wedges between CRT and Deflection Yoke Test point Adj Point Mode Input C P Magnet RB C P Magnet R...

Страница 30: ...C EE PB 27 EXT H INSEL REC EE PB SP MUTE SP MUTE 12 SW211 REC SAFETY FROM TO VIDEO BLOCK FROM TO AUDIO BLOCK KEY SWITCH KEY SWITCH SW201 SW204 SW206 1 8 1 1 8 2 T7401BLS SCL MEMORY SDA 6 5 REC LED 22 REC LED 23 P DOWN 84 P ON H P DOWN P ON H 31 D204 REC AL 5V LD SW 1 I 2 C OPEN 45 71 SW212 LD SW CS 7 FROM TO POWER SUPPLY BLOCK SW205 SW207 SW210 SDA SCL FROM TO CHROMA TUNER BLOCK SDA SCL IC202 WF3 ...

Страница 31: ...L PROCESS 35 REC VIDEO SIGNAL PB VIDEO SIGNAL MODE SP REC 13 91 90 89 88 42 38 CHARA MIX 6dB AMP ENV DET AGC AMP HPF FROM SERVO SYSTEM CONTROL BLOCK FROM TO CHROMA TUNER BLOCK TO CHROMA TUNER BLOCK FROM TO SERVO SYSTEM CONTROL BLOCK CYLINDER ASSEMBLY RF SW RF SW 93 V ENV J274 WF1 TP402 V ENV BUFFER D V SYNC SP LP SLP SP LP SLP ROTA D V SYNC ROTA 14 36 16 71 39 59 73 SPL PLAY REC EE PB RENTAL TRICK...

Страница 32: ...OF IC201 TU AUDIO FROM CHROMA TUNER BLOCK TP401 A OUT AUDIO HEAD AC HEAD ASSEMBLY A COM A PB REC CL402 AUDIO ERASE HEAD AE H AE H FE H 2 1 FE H FE H GND FULL ERASE HEAD CL403 4 3 1 FE HEAD UNIT SERIAL I F AUDIO ATT SDA SCL CN287 4 3 A COM A PB REC 1 2 AE H AE H FE H FROM TO SERVO SYSTEM CONTROL BLOCK TUNER REC AMP AUTO BIAS LINE AMP MUTE P R ALC TUNER LINE D REC H D REC H A MUTE EXT H INSEL REC EE...

Страница 33: ...CL FROM TO SERVO SYSTEM CONTROL BLOCK REC VIDEO SIGNAL PB VIDEO SIGNAL Mode SP REC REC AUDIO SIGNAL WF18 WF17 WF10 WF11 TP302 AFC 56 CV IN 4 MAIN CBA 18 34 35 8 9 31 13 10 11 12 15 14 4 5 3 2 40 41 16 6 20 25 23 CHROMA TRAP SERIAL I F INTELLIGENT MONITORING CHROMA BPF SYNC SEPARATION LUMA SIGNAL PROCESS CIRCUIT CHROMA SIGNAL PROCESS CIRCUIT H SYNC PROCESS CIRCUIT V SYNC PROCESS CIRCUIT OSD MIX RBG...

Страница 34: ...SCREEN MAIN CBA CRT CBA R G B HEATER ANODE GND V501 CRT GND FOCUS SCREEN JK501 CN505 CL501A CL501B REC VIDEO SIGNAL PB VIDEO SIGNAL CN571 FROM TO CHROMA TUNER BLOCK FOCUS VR SCREEN VR FROM CHROMA TUNER BLOCK CL504 1 8 10 1 8 9 B FROM POWER SUPPLY BLOCK DEF B H OUTPUT V RAMP NF 5 4 3 1 WF12 WF15 WF14 WF16 WF13 RED AMP Mode SP REC CL502A VCC 6 7 1 3 2 5 1 5 3 4 6 9 7 10 8 11 S F HV 3 3 HEATER 1 1 P ...

Страница 35: ...8V AL 12V P ON 12V AL 5V P ON H FROM PIN31 OF IC201 5V REG 5V REG 5V REG 5V REG 8V REG IC602 Q608 Q611 Q610 Q609 Q612 5 7V REGULATOR IC301 30 27 B DEF B HOT CIRCUIT BE CAREFUL FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE 4 A 125V FUSE CAUTION ATTENTION UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE 4A 125V 4A 125V CAUTION Fixed voltage or Auto voltage selectable power...

Страница 36: ...ately turn OFF the POWER MONITOR and switch over the Mechanical Malfunction mode with POWER OFF Shall not unload To return from this mode shall become possible only by POWER Key as in the case of the Mechan ical Malfunction However the POWER SAFETY 2 function shall be disabled during 500 msec right after the P ON H turns ON 2 POWER SAFETY 3 If P SAFETY 3 port becomes continuously 2 5V or over for ...

Страница 37: ... it keeps the function according to its mode 4 Countermeasure for CASSETTE LOADING Mal function a CASSETTE IN operating Malfunction If LD SW does not go to SB position after a lapse of 5 sec or more from the CASSETTE insertion start the unit starts the CASSETTE OUT operation After switch over to CASSETTE OUT operation and then a laps of 5 sec or more from the CAS SETTE OUT operation start if LD SW...

Страница 38: ...onitors current will do Read directions below before power is added Repair method 1 Power must be off Short circuit in the secondary side check diode D613 D614 D616 D617 and D618 switching transistor Q601 control transistor Q602 diode and resistor replace as necessary Disconnect 105V diode D613 25V diode D614 8V diode D616 12V diode D617 12V diode D618 and Check the load continuity of 105V line 25...

Страница 39: ... parts then if necessary replace with factory originals R602 is open or not Q601 Q602 D607 D608 and D611 are short or not Repair method 3 The feedback circuit which is monitored by the output of D613 105V may not work and this may be regarded as a possible cause remove IC601 Photo Coupler diode D620 and transistor Q604 check for defects Repair method 4 Check control circuitly which is connecting t...

Страница 40: ...dentified by the mark in the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts that do not have the same safety characteristics as speci fied in the parts list may create shock fire or other hazards Capacitor Temperature Markings Capacitors and transistors are represented by the fol low...

Страница 41: ...cement parts which are listed with their part numbers in the parts list section of the service manual 4 Wire Connectors 1 Prefix symbol CN means connector can disconnect and reconnect 2 Prefix symbol CL means wire solder holes of the PCB wire is soldered directly 5 Note Mark is a leadless chip component 6 Mode SP REC 7 Voltage indications for PLAY and REC modes on the schematics are as shown below...

Страница 42: ...C1 C2 C3 C4 D1 D2 D3 D4 E1 E2 E3 E4 F1 F2 F3 F4 Main 1 5 Schematic Diagram 1 9 3 1 9 4 T7401SCM1 MAIN 1 5 Ref No Position IC201 C 3 IC202 D 1 Q205 B 1 Q206 D 3 CL201 F 4 J274 B 2 TP201 B 4 CONNECTOR ICS TRANSISTORS TEST POINTS ...

Страница 43: ...ignal PB Video Signal PB Audio Signal Main 2 5 Schematic Diagram 1 9 5 1 9 6 T7401SCM2 MAIN 2 5 Ref No Position IC401 H 2 IC801 K 4 Q401 K 2 Q402 K 3 Q871 G 2 Q872 H 1 Q873 G 2 Q874 G 1 Q875 G 1 CL401 G 3 CL402 L 1 CL403 G 1 CN801 L 4 TP301 K 3 TP401 G 2 TP402 I 4 CONNECTOR ICS TRANSISTORS TEST POINTS ...

Страница 44: ...1 P2 P3 P4 Q1 Q2 Q3 Q4 R1 R2 R3 R4 REC Video Signal REC Audio Signal PB Video Signal PB Audio Signal Main 3 5 Schematic Diagram 1 9 7 1 9 8 T7401SCM3 MAIN 3 5 Ref No Position IC100 Q 2 IC301 M 2 Q301 N 1 TP302 O 1 ICS TRANSISTOR TEST POINT ...

Страница 45: ... Fuse F601 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail VOLTAGE CHART Power off mode Ref No S D G Q601 0 0 137 0 1 8 Ref No E C B Q602 0 3 2 0 5 Q605 0 7 0 0 Q606 7 0 7 0 7 0 Q608 5 0 7 5 5 7 Q609 6 0 6 5 6 6 Q610 0 7 4 7 1 3 Q6...

Страница 46: ...l 1 9 11 1 9 12 T7401SCM5 Main 5 5 CRT Schematic Diagram MAIN 5 5 Ref No Position IC551 Y 3 Q571 AA 2 Q572 Z 3 Q591 Z 2 CL501B BB 3 CL502B BB 2 CN571 Z 3 CN573 BB 1 IC TRANSISTORS CONNECTORS CRT Ref No Position Q511 CC 2 Q521 CC 2 Q531 CC 2 CL501A BB 3 CL502A BB 2 CN505 DD 2 TRANSISTORS CONNECTORS ...

Страница 47: ...R TO SENSOR CBA START SENSOR Main CBA Top View BT5400F01014 CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F601 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail 1 9 13 1 9 14 ...

Страница 48: ...ABLE ISOLATION TRANSFORMER IS REQUIRED CAUTION FOR CONTINUED PROTECTION AGAINST RISK FIRE REPLACE ONLY WITH THE SAME TYPE 4A 125V FUSE ATTENTION UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE 4A 125V 4A 125V BT5400F01014 NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this uni...

Страница 49: ... WF16 Q521 Collector WF15 Q511 Collector WF14 BT5400F01014 CRT CBA Top View CRT CBA Bottom View 1 9 17 1 9 18 CRT CBA Ref No Position Q511 B 2 Q521 B 2 Q531 B 2 CL501A A 1 CL502A B 2 CN505 A 1 TRANSISTORS CONNECTORS ...

Страница 50: ...EMATIC DIAGRAM Q521 COLLECTOR WF16 MAIN 5 5 CRT SCHEMATIC DIAGRAM Q531 COLLECTOR WF12 MAIN 5 5 CRT SCHEMATIC DIAGRAM Q571 COLLECTOR WF14 MAIN 5 5 CRT SCHEMATIC DIAGRAM Q511 COLLECTOR 0 2 V 0 1 µs 2 V 5 ms 0 2 V 5 V 5 ms 0 5 V 20 µs 0 25 V 20 µs 0 5 V 0 5 V 0 5 ms 1 V 10 ms 0 2 V 0 5 ms 0 5 ms 1 V 20 µs 2 V 5 ms 20 µs 200 V 10 V 5 ms 20 V 20 µs 20 V 20 µs 20 V 20 µs WF17 MAIN 1 5 SCHEMATIC DIAGRAM ...

Страница 51: ...SE HEAD 4 3 6 5 2 1 M LOADING MOTOR CYLINDER ASSEMBLY CL201 CL401 CAPSTAN MOTOR VIDEO R HEAD VIDEO L HEAD M DRUM MOTOR PG SENSOR CL402 SENSOR CBA END SENSOR BHB300F01014A B SENSOR CBA ST SENSOR BHB300F01014A B 1 FE H GND 2 FE H 1 P ON 12V 2 P ON 5V 2 3 C FG 4 C F R 5 C CONT 6 FG GND 7 LD CONT 8 D CONT 9 D PFG 10 M GND 11 D L 12V 12 D L 15V 1 V R 2 V COM 3 V L 1 AE H 2 AE H FE H 3 A COM 4 A PB REC ...

Страница 52: ...D REV LD REV LD REV 0 2S 0 5S PIN NO CL EJ SS SS AU AU TL LD SW CL SS LD CONT C DRIVE Z ON ON C F R DRUM ROTATION P ON A MUTE H D REC H D PB H PAUSE ON PAUSE PAUSE ON PAUSE OFF PAUSE OFF AU AL AU SF SM EJ AU RS SF SM TL FB AL SB 1 82 66 31 65 44 POWER OFF STOP PLAY RS FS PLAY STILL STOP PLAY DISPLAY SB TL SB FB SM SM SF AL AL RS AU AL SM 0 8S 0 2S 0 3S 1 0S 0 2S 100mS NTSC 620mS PAL 1 0S 0 12S 0 8...

Страница 53: ...REV FF LD REV LD REV LD FWD LD FWD LD FWD LD FWD LD FWD LD FWD LD FWD REC PAUSE REC REC REW LD REV LD REV LD REV LD REV LD REV LD REV LD REV PAUSE REC or PAUSE STOP EJECT STOP EJECT STOP EJECT 2 STOP A FF STOP A REW STOP A REC PAUSE PAUSE or REC STOP A EJECT STOP FF STOP REW STOP REC REC REC PAUSE STOP TL TL SM SM SF SF AL AL SM AL AL AL AU AU SM TL SB EJ RS RS SM SM SF FB SM AU AU SS SS SS SF AU ...

Страница 54: ... OUT REC EE PB YCA IC Mode Output 28 IN OUT SP LP SLP Tape Speed Control Output 29 OUT EXT H INSEL External Input or Playback Signal Input Selector Control Signal 30 OUT RENTAL Rental Position Control Signal 31 OUT P ON H Power On Signal at High 32 OUT SPL PLAY Special Playback Control Signal 33 IN REC SAFETY Record Protection Tab Detection 34 IN RESET System Reset Signal Reset L 35 IN XC IN Sub C...

Страница 55: ...ot Used 79 NU Not Used 80 IN T REEL Take Up Reel Rotation Signal 81 NU Not Used 82 OUT LD CONT Loading Motor Control Signal 83 NU Not Used 84 IN P DOWN Power Voltage Down Detector Signal 85 NU Not Used 86 NU Not Used 87 IN C FG Capstan Motor Rotation Detection Pulse 88 GND GND AMP 89 NU Not Used 90 IN D PFG Drum Motor Pulse Generator 91 NU Not Used 92 OUT AMP VREF IN Standard Voltage Input 93 C C ...

Страница 56: ...TT2140LS YB11 2SC5885000RF E Emitter C Collector B Base MID 32A22 E C B KRA103M 2SC1815 GR TPE2 2SC3331 T U 2SC2120 O Y TPE2 KTC3203 Y KTA1266 GR KIA7805API KA7805A AN7805F IN G OUT K E LTV 817 B C F PC817X6 A C M37762M8A 8B1GP LA71091M 80 51 81 100 1 30 50 31 2SK2662 E C B 2SD400 F LA78040A AN5522 IN G OUT 8 5 1 4 LA4224 42 22 1 21 M61275FP 24 13 1 12 M61111FP 5 4 8 1 BR24C02F W BR24C02F AT24C02 ...

Страница 57: ...rvice Fixtures and Tools 2 2 1 Mechanical Alignment Procedures 2 3 1 Disassembly Assembly Procedures of Deck Mechanism 2 4 1 Alignment Procedures of Mechanism 2 4 9 Sec 2 Deck Mechanism Section I Standard Maintenance I Alignment for Mechanism I Disassembly Assembly of Mechanism I Alignment Procedures of Mechanism ...

Страница 58: ...l only H Hours Check I Change Deck Periodic Service Schedule Ref No Part Name 1 000 H 2 000 H 3 000 H 4 000 H B2 Cylinder Assembly I I B3 Loading Motor Assembly I B8 Pulley Assembly I I B587 Tension Lever Assembly I I B31 AC Head Assembly I B573 B574 Reel SP D2 Reel TU D2 I B37 Capstan Motor I I B52 Cap Belt I I B73 FE Head I B133 B134 Idler Gear Idler Arm I I B410 Pinch Arm Assembly I I B414 M Br...

Страница 59: ... hard material but since it is very thin avoid cleaning it vertically 2 Wait for the cleaned part to dry thoroughly before operating the unit 3 Do not reuse a stained head cleaning stick or a stained chamois cloth Cleaning of Audio Control Head Clean the head with a cotton swab Procedure 1 Remove the top cabinet 2 Dip the cotton swab in 90 isopropyl alcohol and clean the audio control head Be care...

Страница 60: ...2 Alignment Tape FL8N 2Head only FL8NW 4Head only Azimuth and X Value Adjustment of Audio Control Head Adjustment of Envelope Waveform J 2 Guide Roller Adj Screwdriver Available Locally Guide Roller J 3 Mirror Available Locally Tape Transportation Check J 4 Azimuth Adj Screwdriver Available Locally A C Head Height J 5 X Value Adj Screwdriver Available Locally X Value ...

Страница 61: ...that the Moving guide preparations are in the Eject Position 4 Turn the LDG Belt in the appropriate direction shown in Fig M1 until the Moving guide prepara tions come to the Eject Position Stop turning when the preparations begin clicking or can not be moved further However the tape will be left wound around the cylinder 5 Turn the LDG Belt in the appropriate direction con tinuously and the casse...

Страница 62: ... the X value and envelope Not good Do the final tape traveling test to see that the tape runs normally in play mode with out creasing or slacking Completion Not good OK OK OK Not good Not good OK Flowchart of Alignment for tape traveling 1 A 1 A 1 B 1 C 1 C 1 D 1 D 1 B 1 C 1 B 1 C 1 A 1 Tape Interchangeability Alignment Note To do these alignment procedures make sure that the Tracking Control Circ...

Страница 63: ...Position of the Audio Control Erase Head Symptom of Misalignment If the Horizontal Position of the Audio Control Erase Head is not properly aligned maximum envelope can not be obtained at the Neutral position of the Tracking Control Circuit 1 Connect the oscilloscope to TP402 ENV and TP201 CTL on the Main CBA Use J274 RF SW as a trigger 2 Playback the Gray Scale of the Alignment Tape FL8N and conf...

Страница 64: ...f Guide Roller 2 Refer to Fig M3 so that the waveform looks like the one shown in Fig M9 4 If the envelope is as shown in Fig M8 adjust the height of Guide Roller 3 Refer to Fig M3 so that the waveform looks like the one shown in Fig M9 5 When Guide Rollers 2 and 3 Refer to Fig M3 are aligned properly there is no envelope drop either at the beginning or end of track as shown in Fig M9 Note Upon co...

Страница 65: ...ly T DM1 DM6 Desolder 3 S 2 8 8 Loading Motor Assembly T DM1 DM7 Desolder LDG Belt 2 S 3 9 9 AC Head Assembly T DM1 DM7 S 4 10 2 Tape Guide Arm Assembly T DM1 DM8 P 2 11 10 C Door Opener T DM1 DM8 L 4 12 11 Pinch Arm B T DM1 DM8 P 3 13 12 Pinch Arm Assembly T DM1 DM8 14 14 FE Head Assembly T DM1 DM9 S 5 15 15 Prism T DM1 DM9 S 6 16 2 15 Sensor Gear T DM1 DM15 17 2 Slider Shaft T DM10 L 5 18 17 C D...

Страница 66: ... Installation Refer to Deck Exploded Views for lubrication 33 32 Loading Arm TU Assembly B DM2 DM14 Refer to Alignment Sec Pg 2 4 9 34 2 25 M Brake TU Assembly T DM1 DM15 P 7 Brake Belt 35 2 25 M Brake SP Assembly T DM1 DM15 P 8 36 35 Tension Lever Assembly T DM1 DM15 37 36 T Lever Holder T DM15 L 12 38 34 Reel TU D2 T DM1 DM15 39 38 M Gear T DM1 DM15 40 36 Reel SP D2 T DM1 DM15 41 32 36 Moving Gu...

Страница 67: ...2 4 3 Z12NDA 14 13 11 10 12 7 46 8 30 40 16 39 38 42 41 43 9 34 15 36 35 Fig DM1 Top View 29 32 20 33 24 25 27 26 23 28 31 21 22 Fig DM2 Bottom View ...

Страница 68: ... pull up the right side on 2 to release Pin A and Pin B from the slots A Then remove Pin C and Pin D on 2 from the slots B as shown Fig DM4 2 Pin A Slots B Pin C Pin B Pin D Pull up Slide Slot A Slot A 1 2 A 3 4 5 6 L 1 L 2 P 1 Fig DM5 L 3 Fig DM6 View for A Desolder from bottom Lead with Red Stripe L 14 46 47 7 S 2 A ...

Страница 69: ...Stripe A 8 9 S 4 S 3 LDG Belt 28 11 13 12 A 10 L 4 Adj Screw P 3 P 2 When reassembling 10 and 12 confirm that pin of 10 and pin of 12 are in the groove of 28 as shown Pin of 12 Pin of 10 Groove of 28 View for A Fig DM8 Fig DM9 14 15 S 6 S 5 16 Fig DM10 18 17 19 S 7 L 5 P 4 ...

Страница 70: ... as shown in the left figure and then install 23 while pressing the spring P 5 to the direction of the arrow in the left figure and confirming that the position of the spring P 5 is placed as shown in the left figure Pin on 22 Position of pin on 22 Top View L 6 22 23 P 5 Pin on bottom of 23 23 21 C 1 C 4 ...

Страница 71: ...44 First groove on 28 Align 25 and 28 as shown Bottom View 28 Pin of 34 Pin of 31 Position of Mode Lever when installed Pin of 35 Fig DM13 25 24 C 3 S 9 25 27 26 28 C 2 L 8 L 9 L 10 Refer to the Alignment Section Page 2 4 9 Fig DM14 31 30 29 L 11 P 6 32 33 Fig DM15 35 37 turn turn 38 39 40 36 P 8 P 7 turn Break belt 34 L 12 ...

Страница 72: ...2 4 8 Z12NDA Fig DM16 41 42 43 L 13 44 45 P 9 Slide Fig DM17 ...

Страница 73: ...the mechanical or electrical parts Alignment points in Eject Position Alignment 1 Loading Arm SP and TU Assembly Install Loading Arm SP and TU Assembly so that their triangle marks point to each other as shown in Fig AL2 Alignment 2 Mode Gear Keeping the two triangles pointing at each other install the Loading Arm TU Assembly so that the last tooth of the gear meets the most inside teeth of the Mo...

Страница 74: ...6319CD EWC1903 TABLE OF CONTENTS Cabinet Exploded Views 3 1 1 Packing Exploded Views 3 1 3 Deck Exploded Views 3 1 4 Mechanical Parts List 3 2 1 Electrical Parts List 3 3 1 Deck Parts List 3 4 1 Sec 3 Exploded views and Parts List Section I Exploded views I Parts List ...

Страница 75: ... Parts List for parts with this mark V501 3 V501 2 L1 L1 L1 L1 B5 A3 A2 A1 1 A1 4 A1 2 A1X A1 3 A1 6 A1 5 B2 B2 B2 B2 B1 B4 B4 A4 L4 L4 B11 CL802 SP801 L2 TL1 TL1 TL1 TL1 TB26 TB9 1B1 TL2 TL18 TL2 TL2 TL14 TB3 TB1 TB10 TB21 TB7 B3 TB2 TB24 TL3 TL3 CRT CBA MAIN CBA W601 SCOTCH TAPE 880 V501 DG601 L551 TL1 TL1 TL1 TL17 L7 L7 SENSOR CBA SENSOR CBA TB22 CLN551 CLN552 ...

Страница 76: ...Packing 3 1 3 T7400PEX X1 S1 S4 S15 EWC1903 only S3 S3 S2 TAPE TAPE X4 X3 X2 X7 S6 S14 FRONT ...

Страница 77: ...assis Assembly Bottom View Lubricating Point B2 B35 B410 B411 B494 B567 L1053 B74 B10 L1191 B73 B9 B12 B492 B11 B571 B37 B126 L1466 B501 B8 B121 B426 B560 L1450 L1450 L1051 L1467 B553 Mark Description Floil G 684G or Multemp MH D Blue grease SLIDUS OIL 150 DECK EXPLODED VIEWS Deck Mechanism View 1 ...

Страница 78: ... point B516 B559 A B52 B507 B488 B134 B133 B568 B569 B570 B491 B565 L1151 B525 B592 B31 L1406 B148 B521 B520 B590 B564 B487 B573 B574 B499 B587 B508 B558 B557 B3 B417 B591 B522 B414 B416 Mark Description Floil G 684G or Multemp MH D Blue grease SLIDUS OIL 150 SANKOUL FG84M Yellow grease B513 B502 Deck Mechanism View 2 ...

Страница 79: ... B563 B300 B562 B482 B355 B354 B483 B425 L1321 B347 L1321 B361 B359 B529 B360 B514 B313 Some Ref Numbers are not in sequence Mark Description Floil G 684G or Multemp MH D Blue grease SLIDUS OIL 150 B561 Deck Mechanism View 3 ...

Страница 80: ... 0EM201663 TB10 RCA HOLDER T5400UA 0EM407677 TB22 19V CHASSIS NO LABEL TJ T7400UA TB24 WIRE HOLDER T5400UA 0EM407678 TL1 SCREW P TIGHT 3X12 WASHER HEAD GCMP3120 TL3 SCREW S TIGHT 3X4 BIND HEAD GBMS3040 TL14 SCREW B TIGHT M3X8 BIND HEAD GBMB3080 TL18 SCREW P TIGHT M3X8 BIND HEAD GBCP3080 PACKING S1 A CARTON T7401UB 0EM407774 S1 B CARTON T7403UD 0EM407776 S2 STYROFOAM TOP ASSEMBLY T7400UA 0EM407699 ...

Страница 81: ... 1 C P MAGNET JH225 014 or XM04000BV009 CPM E 225 F01 XM04000ETC01 V501 2 WEDGE FT 00110W XV10000T4001 V501 3 RUBBER MAGNET 20X10X1 2 XM05000BV001 CRT TYPE F L551 DEFLECTION YOKE 330P510A37 LLBY00ZTHA01 V501 CRT A48LGS30X TCRT190THA01 V501 1 C P MAGNET JH225 014 or XM04000BV009 CPM E 225 F01 XM04000ETC01 V501 2 WEDGE FT 00110W XV10000T4001 V501 3 RUBBER MAGNET 20X10X1 2 XM05000BV001 CRT TYPE G L55...

Страница 82: ...CMT0Y103 C217 CHIP CERAMIC CAP MELF SL D 10pF 50V CZM1JDBSL100 C218 CHIP CERAMIC CAP MELF SL J 15pF 50V CZM1JJBSL150 C219 CHIP CERAMIC CAP B K 0 01µF 50V CHD1JKB0B103 C220 ELECTROLYTIC CAP 220µF 10V M H7 CE1AMAVSL221 C221 CHIP CERAMIC CAP MELF F Z 0 01µF 16V CZM1CZB0F103 C222 CHIP CERAMIC CAP MELF Y K 2200pF 35V CZM1GKB0Y222 C223 CHIP CERAMIC CAP F Z 1µF 10V CHD1AZB0F105 C224 CHIP CERAMIC CAP MELF...

Страница 83: ...IC CAP 330µF 35V M CE1GMZPTL331 C560 FILM CAP P 0 01µF 50V J or CMA1JJS00103 FILM CAP P 0 01µF 50V J CA1J103MS029 C572 P P CAP 0 47µF 200 J or CA2D474VC012 PP CAP 0 47µF 250V J CT2E474MS041 Ref No Description Part No C574 ELECTROLYTIC CAP 4 7µF 250V M or CE2EMASDL4R7 ELECTROLYTIC CAP 4 7µF 250V M CE2EMASTL4R7 C577 FILM CAP P 0 022µF 50V J or CMA1JJS00223 FILM CAP P 0 022µF 50V J CA1J223MS029 C578 ...

Страница 84: ...50M NPWM333HTF45 D208 ZENER DIODE MTZJT 776 2B or QDTB0MTZJ6R2 ZENER DIODE DZ 6 2BSBT265 NDTB0DZ6R2BS D225 ZENER DIODE MTZJT 776 2B or QDTB0MTZJ6R2 ZENER DIODE DZ 6 2BSBT265 NDTB0DZ6R2BS Ref No Description Part No D226 ZENER DIODE MTZJT 776 2B or QDTB0MTZJ6R2 ZENER DIODE DZ 6 2BSBT265 NDTB0DZ6R2BS D227 CARBON RES 1 4W J 1k Ω or RCX4JATZ0102 CARBON RES 1 6W J 1k Ω RCX6JATZ0102 D231 ZENER DIODE MTZJ...

Страница 85: ...E 1N4148 NDTZ001N4148 D641 ZENER DIODE MTZJT 7736A or QDTA00MTZJ36 ZENER DIODE DZ 36BSAT265 NDTA00DZ36BS D646 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 NDTZ001N4148 D649 ZENER DIODE MTZJT 7715B or QDTB00MTZJ15 Ref No Description Part No ZENER DIODE DZ 15BSBT265 NDTB00DZ15BS D801 SWITCHING DIODE 1SS133 T 77 or QDTZ001SS133 SWITCHING DIODE 1N4148 NDTZ001N4148 D802 SWITCHING ...

Страница 86: ...75 F or QQSF02SA1175 Ref No Description Part No TRANSISTOR KTA1267 GR or NQS10KTA1267 TRANSISTOR KTA1266 GR or NQS40KTA1266 TRANSISTOR 2SA1015 GR TPE2 QQS102SA1015 Q872 TRANSISTOR 2SC2120 O TPE2 or QQS002SC2120 TRANSISTOR 2SC2120 Y TPE2 or QQSY02SC2120 TRANSISTOR KTC3203 Y NQSY0KTC3203 Q873 TRANSISTOR 2SC3331 T or QSC3331TNPAA TRANSISTOR 2SC3331 U or QSC3331UNPAA TRANSISTOR 2SC1815 GR TPE2 QQS102S...

Страница 87: ...W J 100 Ω RRXAJB5Z0101 R314 CHIP RES 1608 1 10W J 100 Ω RRXAJB5Z0101 Ref No Description Part No R315 CHIP RES 1608 1 10W J 100 Ω RRXAJB5Z0101 R316 CHIP RES 1608 1 10W J 8 2k Ω RRXAJB5Z0822 R329 CARBON RES 1 4W J 15k Ω or RCX4JATZ0153 CARBON RES 1 6W J 15k Ω RCX6JATZ0153 R331 CHIP RES 1608 1 10W J 100 Ω RRXAJB5Z0101 R332 CARBON RES 1 2W J 39 Ω or RCX2JZQZ0390 CARBON RES 1 2W J 39 Ω or RCX2390KA013 ...

Страница 88: ...1 4W J 1 2M Ω or RCX4JATZ0125 CARBON RES 1 6W J 1 2M Ω RCX6JATZ0125 R606 CARBON RES 1 4W J 180 Ω or RCX4JATZ0181 Ref No Description Part No CARBON RES 1 6W J 180 Ω RCX6JATZ0181 R607 CARBON RES 1 4W J 180 Ω or RCX4JATZ0181 CARBON RES 1 6W J 180 Ω RCX6JATZ0181 R608 CARBON RES 1 4W J 180k Ω or RCX4JATZ0184 CARBON RES 1 6W J 180k Ω RCX6JATZ0184 R610 CARBON RES 1 4W J 1k Ω or RCX4JATZ0102 CARBON RES 1 ...

Страница 89: ...2k Ω RRXAJB5Z0222 R877 CARBON RES 1 4W J 820 Ω or RCX4JATZ0821 CARBON RES 1 6W J 820 Ω RCX6JATZ0821 R980 CARBON RES 1 4W J 6 8k Ω or RCX4JATZ0682 CARBON RES 1 6W J 6 8k Ω RCX6JATZ0682 R981 CARBON RES 1 2W J 1 2 Ω or RCX2JZQZ01R2 CARBON RES 1 2W J 1 2 Ω RCX21R2ZU002 Ref No Description Part No SWITCHES SW201 TACT SWITCH SKQSAB or SST0101AL038 TACT SWITCH SKHHAM or SST0101AL029 TACT SWITCH KSM0612B S...

Страница 90: ...Part No C502 ELECTROLYTIC CAP 1µF 50V M or CE1JMASDL1R0 ELECTROLYTIC CAP 1µF 50V M or CE1JMASDL010 ELECTROLYTIC CAP 1µF 50V M CE1JMASTL1R0 C511 CHIP CERAMIC CAP B K 470pF 50V CHD1JKB0B471 C521 CHIP CERAMIC CAP B K 470pF 50V CHD1JKB0B471 C531 CHIP CERAMIC CAP B K 470pF 50V CHD1JKB0B471 CONNECTORS CN505 PIN CONNECTOR 005P 5100 or JTEA001TG001 CONNECTOR PIN 1P LV or 1700576 CONNECTOR PIN 1P RT 01N 2 ...

Страница 91: ...RCX6JATZ0152 MISCELLANEOUS CL501A LEAD WIRE 3P 430MM WX1T7400 001 CL502A LEAD WIRE 4P 450MM WX1T7400 002 JK501 CRT SOCKET ISMS02S JSCC220PK003 Ref No Description Part No SENSOR CBA Consists of the following 0ESA04524 TRANSISTORS Q201 PHOTO TRANSISTOR MID 32A22 NPWZM1D32A22 Q202 PHOTO TRANSISTOR MID 32A22 NPWZM1D32A22 Ref No Description Part No ...

Страница 92: ...BAND BRAKE SP MK12 0VM305723 B488 MODE LEVER MK12 0VM101173 B491 CAM GEAR A MK12 0VM101174 B492 MODE GEAR MK12 0VM203769 B494 C DOOR OPENER MK12 0VM305719 B499 T LEVER HOLDER MK12 0VM305729 B501 WORM HOLDER MK12 0VM203767 B502 CAM GEAR B MK12 0VM305721 B507 REEL WASHER MK9 5 2 1 0 5 0VM410058 B508 S BRAKE SPRING MK10 0VM411121 B514 SCREW RACK MK10 0VM411535 B516 REEL WASHER MK9 5 2 1 0 5 0VM410058...

Страница 93: ...Printed in Japan 2003 02 17 HO 6319CD EWC1903 T7401UB 7403UD ...

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