Aiwa VX-D1420K Service Manual Download

Page: 79 / 105

IS NON POLAR ONE.

THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP

THE RESISTOR MARKED F IS FUSE RESISTOR.

NOTE:

C1016

6.3V

KANP

D1001

1N4005E

D1010

SB10-03A3

D1006

SB10-03A3

D1002

1SS133

D1009

1SS133

D1017

1SS133

D1004

1N4005E

D1016

1SS133

D1015

1SS133

D1018

1SS133

IC1006

OEC0085B

SYSCON/TIMER/SERVO IC

110

101

102

103

104

105

106

107

108

109

112

111

100

R1005

2.7

Q1001

SG-260

REEL SENS

Q1005

SG-260

REEL SENS

CP1005_1

52045-0545

CP1004

TMC-J08P-B1

IC1001

BA6955AN

LOADING MOTOR DRIVER IC

SW1001

SPVF130100

Q1003

RPI-352Q01R

MS_SEN B

Q1009

RPI-352Q01R

MS_SEN A

IC1002

RE5VS31A

SYSTEM RESET IC

D1003

SID1050CM

IC1099

S-24C08ADPA-01

EEP ROM IC

DESCRIBED IN PARTS LIST ONLY

CRITICAL FOR SAFETY,USE ONES

ARE

SINCE THESE PARTS MARKED BY

CAUTION:

DANS LA NOMENCLATURE DES PIECES

N’UTILISER QUE CELLS DECRITES

DANGEREUSES AN POINT DE VUE SECURITE

ETANT

LES PIECES REPAREES PAR UN

ATTENTION:

R.SIGNAL
G.SIGNAL
B.SIGNAL

CYLINDER AFC SIGNAL

CYLINDER APC SIGNAL

CAPSTAN AFC SIGNAL

TP1001

JWF-50K-1

SERVICE

Q1020

DTC143EKA

CENT LED CTL

IC1003

LC74772V

OSD IC

D1008

MTZJ5.6B

D1005

RD12FB

DURING PLAYBACK

MEASURED WITH THE DIGITAL TESTER

NOTE:

THE DC VOLTAGE AT EACH PART WAS

L1003

47uH
0607

W806

W910

W824

Q1016

2SC2412K

HD SW

Q1015

2SC2412K

VD SW

Q1021

2SC2412K

BUFFER

Q1002

2SC2412K

SENSOR SW

Q1014

2SC2412K

BUFFER

C1004

10
16V

C1046

220

25V

C1032

220

6.3V

C1040

50V

R1003

68K

R1111

22K

R1042

22K 1/4W

R1066

22K

R1021

22K

R1010

3.3K

R1089

1/4W

R1060

100K

R1013

10K

R1088

10K 1/4W

R1015

22K

R1090

R1061

10K

R1035

22K

R1101

18K

R1063

10K

R1067

22K

R1031

R1032

10K

R1018

4.7K

R1044

3.3K

R1045

3.3K

R1016

270

1/4W

R1059

R1055

10K

R1058

R1040

22K

R1064

22K

R1006

47K

R1079

1/4W

R1083

33K

1/4W

R1062

10K

R1002

120

R1049

4.7K

R1051

5.6K

R1043

R1033

22K

R1048

22K

R1086

18K

R1046

4.7K

R1050

100

1/4W

R1087

33K

R1092

10K

R1094

150

R1093

150

R1095

150

R1001

5.6K

R1012

56K

R1014

56K

R1009

R1034

R1109

R1004

R1019

47K

1/4W

R1026

10K

R1039

1K 1/4W

R1047

4.7K

R1077

10K

R1008

R1007

10K

R1020

560

R1017

560

R1022

68K

R1029

R1081

330

R1084

330

1/4W

R1082

330

R1011

82K

R1074

22K 1/4W

R1027

10K

C1022

0.0033

C1055

330P CH

C1053_1

0.0022

C1030

0.1 F

C1066

0.1 B

C1023

100P

C1031

100P

C1076

100P

C1075

100P CH

C1038

18P CH

C1035

20P CH

C1034

0.1

C1054

C1009

0.022 B

C1048

0.1

C1043

0.1

C1042

0.1

C1014

0.1

C1041

0.022 B

C1061

0.1

C1047

0.1

C1017

0.1

C1067

270P CH

C1065

270P CH

C1068

270P CH

C1006

0.022 B

C1007

0.18 B

C1024

15P

C1025

15P

C1002

0.001

C1057

0.1 B

C1010

0.001

C1027

0.1

C1070

220P CH

C1071

220P CH

C1028

C1026

C1005

0.001

C1008

0.0047 B

C1015

0.0015 B

C1019

0.1 B

C1018

220P CH

C1069

220P CH

C1003

0.1F

5.5V

C1020

50V

C1029

6.3V

C1021

16V

C1001

100

16V

C1013

6.3V

CP1006

52045-0445

L1001

33uH

X1001

10MHz

X1002

32.768

KHz

CD1002

CH22076A

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

CAUTION: DIGITAL TRANSISTOR

AT+5.6V

GND

VCR_POWER_H

RESET

IF_MOD

SEN_LED

CAP_F/R

MO_SYNC

TV_A_MUTE

CYL_DRIVE

SDA

POWER_FAIL[DC]

TEXT_RESET

CONTROL_IN

REMOCON_IN

SCL

CAP_VCO

SCL

SDA

AV_1

TEXT_RESET

AV_2

TUNER_ON/OFF

REC_AFT

REC_AGC_CTL

SVL_R

VV_H

SCL

MO_SYNC

SDA

SCL

H.SW

SDA

ENV_DET

VCR_A_MUTE

IF_MOD

VCR_A_MUTE

P.CON+5V_B

V.REC_ST_H

CTL+

P.CON+5V_C

POWER_FAIL[DC]

CTL-

P.CON+5V

V.SYNC

AV_1

OSD_CLK

AT+12V

D_V_SYNC

MOTOR_GND

AV_2

OSD_DATA

V.REC_ST_H

OTPB_LED

OSD_CS

SCL

VCR_POWER_H

SDA

ON_TIM/PLAY_LED

DEC_TU_SW

KEY_B

ON_TIM/PLAY_LED

KEY_A

T-REC_LED

REC_LED

T-REC_LED

OTPB_LED

REC_LED

TUNER_ON/OFF

REMOCON_IN

V.SYNC

LDM.F

LDM.R

EXT_IN_L

BOT

H.SW

CENT_LED_CTL

TU_AUDIO_MUTE_H

TV_POWER_H

DEC_TU_SW

REC_AGC_CTL

TUNER_ON/OFF

IIC_OFF

CYL_DRIVE

CAP_LIMIT

VV_H

TUNER_CTL

EXT_IN_L

VCR_POWER_H

EOT

CYL_PG

TU_AUDIO_MUTE_H

TV_POWER_H

P.CON+5V_B

CYL_FG

TUNER_CTL

REEL-S

R.OUT

CENT_LED_CTL

P.CON+5V_B

D_V_SYNC

REEL-T

G.OUT

B.OUT

SVL_R

TEXT_Y

SDA

SCL

IIC_OFF

AFT_M

AGC_M

CTL+

CTL-

CYL_DRIVE

CYL_FG

P.CON+5V_C

CYL_PG

MS_SEN-B

MS_SEN-A

ENV_DET

REC_AFT

VOL_CTL

AFT_M

AGC_M

LDM.R

LDM.F

EOT

BOT

CAP_FG

RESET

KEY_A

KEY_B

OSD_CS

B.OUT

REEL-S

REEL-T

MS_SEN-A

P.CON+5V_B

SEN_LED

MS_SEN-B

TV_POWER_H

OSD_CLK

G.OUT

TV_A_MUTE

CAP_LIMIT

VOL_CTL

OSD_DATA

R.OUT

TEXT_Y

CONTROL_IN

CAP_VCO

CAP_FG

CAP_F/R

CENT LED CTL

I-8

PCB010
VM9171

FROM/TO T’TEXT

FROM/TO Y/C/A/H.AMP

FROM/TO CAPSTAN DD UNIT

FROM/TO MICRO MOTOR

(CP102)

(CP101)

FROM/TO DECK

FROM/TO POWER

LDM+

CAP.M/F/R

MOTOR GND

FROM/TO CHROMA

FROM/TO 21PIN I/O

IF MOD

SECAM_REC_L

MON_VL

REC_VL

5.2

5.1

GND

OUT

BLANK

CHA3

BLK3

CHA4

BLK4

OUT

SCLK

SIN

MOD

OUT

TEST

VSYNC

CTRL1

OUT

OSC

RST

HSYNC

OSC

TUNER_CTL

CAP FFWD-L

CAP FULL

CYL SPEED UP

SECAM_L

REC LED(SUB DATA OUT)

T-REC LED(SUB DATA IN)

PLAY_LED

ON_TIM_LED

SERVICE

OTPB LED

TUNER_MUTE

KEY-A

KEY-B

TUNER_AGC

V ENV

MESECAM-M

SI1

DEC_TU_SW

SECAM_SW

VSS

SDA

SCL

TEST

VCC

REC_AGC_CTL

REC AFT

AV2

AV1

VOL CTL

HIFI H.SW

CAP_LIMIT3

VV-H

OSD_CLK

SCL

OSD_DATA

SDA

OSD_CS

AFT S.CURVE

HIFI_ENV

AKB_CTL

EXT_IN_L

CTL REF

CTL(+)

CTL(-)

SOD_DATA

EOT-H

BOT-H

VCR_MUTE

TV_MUTE

TEXT_RESET

REMOCON

IIC_OFF

VCR_POWER_ON-H

TV_POWER_ON-H

32KHz MONITOR

V.REC ST-H

FF/REW-L

LDM FWD-H

LDM RVS-H

REEL S

REEL T

TAB SW

VIDEO H.SW

DUMMY_V.SYNC

CAP FG

CTL SMT(I)

CTL AMP(O)

CTL FB

CTL BIAS

SVSS (GND)

MS SEN-B

MS SEN-A

110

VSS (GND)

P12

112

111

VCC (BACK UP)

DFG

DPG

COMP

H.AMP

COLOR ROTARY

DRUM PWM

CAP PWM

C SYNC

SV2

SV1

VSS (GND)

VCC (BACK UP)

MS SENS CONT

MD0

VCC (BACK UP)

OSC2

VSS (GND)

OSC1

RESET

/NMI

FWE

P14

P13

VCC (BACK UP)

VSS (GND)

AVSS (GND)

AVCC (BACK UP)

SVCC (P.CON5V)

CYL DRIVE

CYL PG

CYL +B

CYL FG

CYL GND

VCO

GND

I LIMIT

CTL

VCC(5V)

SECAM_MO-H

CTL_MONITOR

TUNER_ON/OFF

POWER FAIL

MO_SYNC

4.9

5.0

1.7

0.9

5.1

4.8

4.7

5.0

5.0 5.1 0.1

5.0 1.5 2.4 5.0 2.6 5.1 5.0

2.6

2.6 5.0 1.8 1.7 5.0

4.3

5.1

5.0

0.2

5.0

0.4

2.7

2.4

1.9

0.3

5.0

2.4

5.0

2.4

2.5 2.4 0.2 2.5 2.4 2.4 4.9 5.0

0.9 1.0 1.0 0.2

0.1 4.3 0.3 5.1 5.1

3.6

5.1

0.2

5.2

4.0

3.7

4.8

5.0

2.4

4.9

0.7

5.0

2.1

5.0

5.1

5.0

4.4

5.1

5.0

4.4

0.1

4.5

3.9

-0.8

2.5

2.6

1.2

4.0

3.7

4.8

3.9

4.5

1.9

1.3

MICON SCHEMATIC DIAGRAM

(SYSCON PCB)

TO SOUND AMP

VCC

EOT

BOT

VCC

LDM-

TSD

POWER

SAVE

CONTROL LOGIC

(LDM)

11.7

1.0

0.9

11.7

Summary of Contents for VX-D1420K

Page 1: ...35 mm sec PAL SP 5 hours max with E 300 tape LP 10 hours max with E 300 tape NTSC playback SP only 3 hours 30 minutes max with T 210 tape 1 0Vp p 75 ohm unbalanced 1 0Vp p 75 ohm unbalanced 53dB nomin...

Page 2: ...OWER T TEXT PRINTED CIRCUIT BOARDS OPERATION DECK OPERATION SCHEMATIC DIAGRAM DECK SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARDS SYSCON IF Y C AUDIO HEAD AMP SCHEMATIC DIAGRAM MICON SCHEMATIC DIAGRAM CHROM...

Page 3: ...a tube or tape for safety or which are assembled in the condition that these do not contact with the printed board The inside wiring is designed not to get closer to the pyrogenic parts and high volta...

Page 4: ...nlock the support 2 Remove the TV VCR Block in the direction of arrow Fig 1 3 1 4 MAIN PCB Refer to Fig 1 4 1 2 3 4 5 6 Remove the screw 1 Remove the Main PCB Holder Remove the 2 screws 2 Remove the 3...

Page 5: ...o Fig 1 5 1 2 3 4 5 6 Remove the 2 screws 1 Remove the 4 screws 2 Remove the screw 3 Remove the Deck Shield Plate in the direction of arrow A Remove the screw 4 Remove the Shield Plate Bottom in the d...

Page 6: ...assis Main Chassis Cassette Side L Cassette Side R Locker R Fig 2 4 2 5 CASSETTE SIDE L R Refer to Fig 2 5 Unlock the 4 supports 1 and then remove the Cassette Side L R 1 Screw Torque 5 0 5kgf cm B2 1...

Page 7: ...and Ass y Unlock the support 3 and remove the Tension Holder Remove the SS Brake Spring Remove the SS Arm Brake 1 2 3 4 5 6 7 8 1 2 1 Loading Motor Ass y Link Lever Main Chassis Screw Torque 5 0 5kgf...

Page 8: ...Spring Remove the screw 1 Unlock the 2 supports 2 and remove the Cassette Opener Remove the Pinch Roller Block Pinch Roller Arm Spring Pinch Roller Lever Ass y and P5 3 Arm Ass y 1 2 3 4 1 2 2 P5 Spri...

Page 9: ...tan DD Unit 1 2 3 Screw Torque 5 0 5kgf cm Fig 2 16 2 17 MIDDLE GEAR MAIN CAM Refer to Fig 2 17 A Remove the Polyslider Washer 1 then remove the Middle Gear Remove the E Ring then remove the Main Cam...

Page 10: ...e the Loading Gear Spring 2 When you install the Clutch Actuator install as shown in the circle of Fig 2 19 C Refer to Fig 2 19 C Fig 2 19 C Clutch Actuator NOTE Do not touch the roller of Guide Rolle...

Page 11: ...p up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support Refer to Fig 3 2 2 GND on the CRT Screwdriver Alligator Clip Support CRT GND on the CRT Rubber Cap CRT...

Page 12: ...op Frequency Generator Front Loading Switch Frequency Modulation Frequency Sub Carrier Forward Generator Ground High Pass Filter I K L M N O P R S H SW Hz IC IF IND INV KIL L LED LIMIT AMP LM LDM LP L...

Page 13: ...or Separation Transistor Tracking Trick Playback Test Point Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse Voltage Display Video Playback Variable Resistor...

Page 14: ...on the screen NOTE Turn off the power to return to the normal operation POWER ON total hours and PLAY REC total hours are displayed on the screen Refer to the PREVENTIVE CHECKS AND SERVICE INTERVALS C...

Page 15: ...d parts which the rubber touches Replace when rolling becomes abnormal Clean the Head CONFIRMATION OF USING HOURS POWER ON total hours and PLAY REC total hours can be checked on the screen Total hours...

Page 16: ...lly Clean the full erase head in the same manner Refer to the figure below Audio Control Head 2 TAPE RUNNING SYSTEM When cleaning the tape transport system use the gauze moistened with isopropyl alcoh...

Page 17: ...ADDRESS until required ADDRESS to be changed is reached Press ENTER to select DATA When DATA is selected it will blink Again step through the DATA using PLAY or STOP button until required DATA value...

Page 18: ...ent JG153 X Value Adjustment JG022 JG024A Reel Disk Height Adjustment Used to connect the Syscon PCB and CRT PCB JG162Y JG162C JG162D Used to connect the Syscon PCB and Main PCB Used to connect the te...

Page 19: ...t the Syscon PCB to the CRT PCB with the cable JG162Y Remove the Operation PCB from the set then connect it with the Syscon PCB If necessary connect CP351 Front A V Jack Input Terminal Short circuit b...

Page 20: ...on Main PCB It s possible to get the Servicing Position without the extension Jig if you arrange the unit as shown below But L503 connection can not be done Degauss circuit will not operate Be carefu...

Page 21: ...rve the chroma signal There are two types of the new alignment tape CH 1B for NTSC and CH 2 for PAL On each tape four signals 1 4 are recorded for the times and in the order shown below The TTV MP1 fo...

Page 22: ...ght Adjustment Jig JG024A A Cut Position Fig 1 2 B B Tension Adjust 1 3 CONFIRMATION OF PLAYBACK TORQUE AND BACK TENSION TORQUE DURING PLAYBACK Load a video tape E 180 recorded in standard speed mode...

Page 23: ...is adjusted precisely at the factory Adjustment is not necessary as usual When you replace the parts of the tape running mechanism because of long term usage or failure the confirmation and adjustment...

Page 24: ...tle distortion is appeared then adjust the a Reflected picture of Stamp Mark Stamp Mark Audio Control Head P4 Post Fig 2 2 A Audio Control Head 1 3 2 Fig 2 2 B Tape Audio Control Head Fig 2 2 C 0 25 0...

Page 25: ...NTS 3 MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 5 6 7 8 9 10 1 2 3 4 1 Tension Adjust 2 Tension Arm 3 Guide Roller 4 P1 Post 5 Audio Control Head 6 7 8 9 10 X value adjustment driver hole P4 Post T Br...

Page 26: ...lace the set with Aging Test for more than 10 minutes Connect the oscillator 39 5MHz to TP602 Connect the digital voltmeter between the pin 6 of CP603 and the pin 1 GND of CP603 Activate the adjustmen...

Page 27: ...the display Press the channel button 5 on the remote control to select CUT OFF Adjust the Screen Volume until a dim raster is obtained 1 2 3 4 5 6 7 8 9 Place the set with Aging Test for more than 15...

Page 28: ...ss the PLAY or STOP button on the remote control until the second scale from left end is starting to glitter Refer to Fig 2 7 Receive more than 8 steps monochrome pattern Audio Video Input Press the A...

Page 29: ...l to select PICTURE The Fig 2 6 appears on the display Press the channel button 5 on the remote control to select SHARPNESS Check if the step No of SHARPNESS is 28 Press the AV button on the remote co...

Page 30: ...ELECTRICAL ADJUSTMENTS D2 5 3 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE VCR SECTION TP1001 C1003 TP4501 TU601 TU602 TP602 TP601 CP603 TP4001 TP4002 SYSCON PCB IF PCB L6006 CP6001 IC6001 J4501...

Page 31: ...ELECTRICAL ADJUSTMENTS D2 6 TV SECTION MAIN PCB FB401 FOCUS VOLUME SCREEN VOLUME VR502 CRT PCB TP801 TP401 T501 J801...

Page 32: ...performing adjustments in section 4 1 1 2 3 4 5 Receive the green raster pattern from color bar generator Adjust the pair of purity magnets to center the color on the screen Adjust the pair of purity...

Page 33: ...tage of C507 is it normal NO YES YES NO Investigate R501 and F501 Whether there is output for IC501 3rd pin or not Investigate IC506 and IC501 Investigate T501 NO NO NO NO NO YES YES YES YES Whether i...

Page 34: ...0MHz OSC for IC1006 67th pin and 68th pin or not Investigate X1001 Is there 135V in the emitter of Q503 Is the 5V for IC602 48th pin or not Investigate Q1006 and Q1019 Investigate IC602 Is there a hea...

Page 35: ...to IC701 1st pin or not Investigate IC701 peripheral circui Does a signal change at a volume upgrade knock down or not Investigate IC1006 28th pin Is the voltage of IC352 1st pin DC 8 3V or not Inves...

Page 36: ...14th pin normal or not YES YES Investigate X604 Investigate IC851 and IC853 NO Whether is wave form of IC851 3rd pin normal or not YES Investigate IC602 and IC701 Investigate Q804 Q805 Q806 and a per...

Page 37: ...5V line Whether is a luminance signal early in IC602 34th pin or not Investigate IC602 YES NO Whether is a luminance signal early in IC4001 52th pin or not Investigate IC4001 YES NO YES R G B signal o...

Page 38: ...e wave form of the 21st pin and the 22nd pin of IC1006 is investigated Q1014 and also Q1015 are investigated The wave form of the 10th pin 11th pin and 12th pin of IC602 normal Investigate the circuit...

Page 39: ...nsert a cassette and push PLAY button No Yes No Yes Does Playback change to Stop about 6 seconds later Check IC1006 Check TAPE LOADING CAPSTAN DD UNIT and CYLINDER UNIT Check REEL SENSOR and CAPSTAN B...

Page 40: ...here VIDEO signal at pin 52 of IC4001 Check C4035 and the peripheral circuit Yes Is there voltage at pins 12 36 and 61of IC4001 5V Check C4075 R4050 and the peripheral circuit Check R4040 Q4006 or Rep...

Page 41: ...in 61 of IC4001 Yes Check TV Block Check IC4001 Check C4075 R4050 and the peripheral circuit Check L4013 or Replace IC4001 Does FM ENVELOPE appear at TP4002 Check R4040 Q4006 and peripheral circuit Do...

Page 42: ...o No Yes Replace IC4001 Check pin 52 of IC4001 and peripheral circuit Is there CHROMA signal at pin 55 of IC4001 200mVp p Replace CYLINDER UNIT Is VIDEO waveform at pin 52 of IC4001 1Vp p and are ther...

Page 43: ...HOOTING GUIDE E 11 NO COLOR DURING SELF RECORDING AND PLAYBACK Yes No Check J4501 J701 and VIDEO input circuit Refer to section NO COLOR DURING PLAYBACK Does VCR signal appear at pin 31 or 30 or 28 of...

Page 44: ...MODE Does Audio appear at pin 11 of IC4001 Check L4001 Q4007 and peripheral circuit Check AUDIO HEAD for debris of stains Check that the connector from AUDIO HEAD is fully inserted to CP4005 Does Audi...

Page 45: ...8 of CP1004 5V No No Yes In playback is the voltage at pin 4 of CP1004 2 5V In playback check the voltage at pin 3 of CP1004 is 2V or at pin 38 of IC1006 is normal In playback is the voltage at pin 5...

Page 46: ...peripheral circuit No Yes Check POWER BLOCK Yes No Is there AUDIO signal at pins 7 or 8 or 9 of IC4001 AUDIO CAN NOT BE RECORDED Is there BIAS at pin 4 of IC4001 Check the circuit of 21 PIN and TUNER...

Page 47: ...E 15 CASSETTE IN AND DOWN BUT UNIT HAS NO FUNCTIONS No Yes Check LOADING MOTOR and the peripheral parts Does VCR operate with the remote control Yes No Check IC1006 Check CONTROL PCB Does mode indica...

Page 48: ...DEO input jack to IC4001 and from Tuner Pack to IC4001 Yes No Does video signal appear at pin 28 or 30 or 31 of IC4001 No Yes Check the peripheral circuit IC4001 Check C4027 C4028 and the peripheral c...

Page 49: ...E E 17 NO E E NO VIDEO AND AUDIO FROM TUNER Yes No Yes Check Power PCB Is the voltage at pin 7 of TU601 5V Yes No Check IC601 Is the voltage at pin 9 of TU601 30V No Is there waveform at pins 4 and 5...

Page 50: ...C1006 Yes No No Yes In playback is the voltage at pin 5 of CP1005 about DC1 2V CYLINDER NOT ROTATING DURING PLAYBACK AND RECORDING Check CYLINDER MOTOR Is the voltage at pin 2 of CP1005 about DC12V Ch...

Page 51: ...AUDIO HEAD scratched Replace AUDIO HEAD Replace CAPSTAN DD MOTOR Check peripheral components of IC1006 No Yes Yes No No Yes Does pin 8 of IC1006 output a 3 0Vp p square wave In playback is the voltage...

Page 52: ...LOADING BLOCK activate Check WORM GEAR of CASSETTE LOADING BLOCK Check EOT BOT PHOTO SENSOR pins 17 and 18 of IC1006 When a cassette is inserted is the voltage between pins 3 and 4 of CP1006 Replace L...

Page 53: ...e EOT PHOTO TRANSISTORS Check R1026 circuit Does this same problem appear when using another cassette tape When inserting a cassette does Emitter of EOT return to LOW Defective CASSETTE or CASSETTE LO...

Page 54: ...No Check pin 72 of IC1006 lines Replace IC1006 No Yes Check pin 7 of CP1004 and peripheal circuit When the FF REW is pushed does the PULSE appear at pin 72 of IC1006 Is the voltage change at pin 7 of...

Page 55: ...Yes Check Power circuit Replace CYLINDER UNIT No No Yes Yes Replace IC1006 Yes No Check REEL SENSOR Does TP4001 feed HEAD SWITCHING PULSE signal 30Hz Is the voltage at pin 2 of CP1005 UNREG 12V Does P...

Page 56: ...oise appear in the picture No No Yes By adjusting the manual tracking UP DOWN buttons will the noise disappear in the picture Check P B ENVELOPE No Yes Are GUIDE POSTS the right height Adjust GUIDE PO...

Page 57: ...ONTALLY AUTO TRACKING DOES NOT OPERATE By manual tracking does the DC level at pin 19 of IC1006 change Yes No In auto tracking is the voltage at pin 19 of IC1006 more than DC0 7V Yes No Replace IC1006...

Page 58: ...MOTOR rotate Refer to section CAPSTAN DD MOTOR NOT ROTATING Is CAPSTAN BELT normal Yes No Replace CAPSTAN BELT Yes No Does REEL SENSOR PULSE signal appear at pin 32 of IC1006 Check Reel Sensor of Q100...

Page 59: ...IC1006 Yes No Replace CYLINDER MOTOR Replace CYLINDER MOTOR Does pin 108 of IC1006 output a 5Vp p square wave In playback is the voltage at pin 5 of CP1005 about 1 2V PLAYBACK PICTURE SHAKES Is FG Pu...

Page 60: ...input 22 ANB KEY_B IN 23 AVSS AVSS Ground 24 P50 FF REW L OUT Not used 25 P51 LDM_RVS OUT Output signal to control the rotation direction of the loading motor 26 P52 LDM_FWD OUT 27 P53 AKB CTL OUT Out...

Page 61: ...low signal input 63 NMI NMI AT 5 V 64 X2 X2 OUT Subclock pluse 32 768KHz 65 X1 X1 IN Subclock pluse 32 768KHz 66 RES RES IN RESET will be done when the voltage goes to HIGH after the restart signal 67...

Page 62: ...terminal control for T REC LED voltage drive 97 P87 REC LED OUT Output terminal control for REC LED voltage drive 98 C SYNC C SYNC IN Input terminal for composite C SYNC 99 AUDIO FF Hi Fi_H SW OUT Ou...

Page 63: ...SERVO TIMING CHART IC1006 OEC0085B F2 1 CH 1 CH 2 DPG 107 PIN DFG 108 PIN H SW P 100 PIN V SYNC E E 98 PIN REC CTL REC 6 PIN V SYNC TRICK PB 110 PIN WAVEFORM CHANGES DEPENDED ON THE TAPE SPEED...

Page 64: ...MECHANICAL MOVEMENT NO CAPSTAN ROTATING R SLOW LIGHT GUARD LIGHT RECEIVING EOT BOT MSSEN A MSSEN B LOADING ARM PINCH ROLLER LIGHT RECEIVING LIGHT GUARD LIGHT RECEIVING LIGHT GUARD LIGHT GUARD L T BRAK...

Page 65: ...J G3 MTZJ6 8B T 77 RD12FB T7 RU2AM V1 SB10 03A3 RU2YX V1 IC 16PIN 20PIN 24PIN 100PIN 8PIN 24PIN TC74HC4053AP ET317 LA7567B HA118217F S 24C08ADPA 01 LC74772V 22PIN 28PIN 112PIN LC74793 JM M52472P ET106...

Page 66: ...NP AA DTC114TSTP 2SC2412KT146 R S 2SA733 C T P Q DTC114EKT147 2SB892 S T AE 2SC1815Y TPE2 2SC2271 D E AE 2SC2274 AA 2SC2909 S T AA 2SC3000 AA 2SC945 C T P Q 2SD734 E F AA 2SD2599 DTA124EKAT146 DTC114E...

Page 67: ...L DC 3 3 AT 5 6V AT 30V 2 CHROMA IC602 NN5099 14 X604 4 433619MHz 39 34 30 19 18 51 23 2 22 46 4 52 42 10 11 5 6 8 7 TINT VCO RGB MATRIX DRIVE CUT OFF OSD SW CLAMP APC ACC H SYNC SEP SW FM DET SPLL BP...

Page 68: ...MAIN EMPH CARRIER OFFSET W C DC F0 DEV ADJ S DET Q4006 BUFFER 88 87 89 86 H AMP 8 7 REC MUTE LINE MUTE ENV DET L4001 15 6KHz TRAP L4005 1 3 6 Q4004 Q4005 FE HEAD 4 ENV DET H SW MICON OPE SDA SCL VCR_A...

Page 69: ...WER_H 85 VCR_MUTE VCR_A_MUTE 100 VIDEO H SW H SW 34 TUNER_MUTE TU_AUDIO_MUTE_H 60 REMOCON 3 2 1 OS753 AT 5V D793 D791 D792 P CON 5V_C POWER ON SW Q4201 19 TUNER_AGC 13 V ENV AGC_M ENV_DET 7 6 CS SCLK...

Page 70: ...6 1 5 3 7 22 20 19 21 2 6 1 3 J4501 8 7 11 16 20 15 19 Q4509 AMP Q4505 MUTE SW Q4507 PERI SW Q4504 Q4508 Y SW REC_TU_AU1 REC_TU_V SDA DEC_TU_SW SCL Y C_VIDEO_OUT TU_AUDIO TU_VIDEO REAR_VIDEO MONITOR_...

Page 71: ...TB OSC1 5 6 OSC2 X851 13875KHz 12 TCLK 19 SYNC 17 WIND SSIG 2 1 TSIG 3 CSIG Q855 RED BUFFER Q852 GREEN BUFFER Q851 BLUE BUFFER Q862 BLK BUFFER 1 2 3 4 5 12 11 10 MONITOR_V 21_G 21_B 21_R 21_Y SCL SDA...

Page 72: ...J701_1 W001 C781 R773 R774 C779 R772 C751 R793 R762 R780 R777 R776 R759 R760 R766 C752 R763 R754 R761 R350 C351 W807 W818 W808 W002 W003 R351 B702 B701 W812 C353 C354 W004 C702 W811 C356 C355 CD351_2...

Page 73: ...1 430 1 2 3 4 J351 HSJ2630 010070 1 2 3 4 5 6 7 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DESCRIBED IN PARTS LIST ONLY CRITICAL FOR SAFETY...

Page 74: ...MARKED BY CAUTION DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE AT EACH PART WAS OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT T...

Page 75: ...R1080 Q862 R879 R1073 R1072 C1060 C1059 R1071 R1053 R1054 R1070 C1058 C4201 C4203 C4204 R1101 C1070 C4060 R1037 C363_1 C366 C604 C606 C608 C614 C621 C622 C623 C624 C625 C626 C630 C631 C633 C638 C639 C...

Page 76: ...3 R604 R629 R643 R650 R4507 R4524 TU602 TU601_1 W818 W833 W843 W859 W864 W006 W057 W058 W011 W010 W007 W067 W009 W064 W065 W018 W047 W050 W093 W091 W012 W040 W095 W090 W030 W031 W036 W049 W053 W055 W0...

Page 77: ...C1021 D1002 IC1002 C1003 W330 X1002 X1001 W241 C1013 W169 D4202 W306 W203 D1008 W331 W332 W202 W207 W327 W318 W234 C1001 C1037 R1068 CD810 CP1005_1 CP1006 R1088 C1046 W212 W148 W206 W243 W824 W244 W23...

Page 78: ...NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME L4001 2623003 15 6KHZ TRAP 1 2 3 4 6 CAUTION DIGITAL TRANSISTOR S819Y S819X S811X S811Y S821X S821Y S812 RECORD LUMINANCE SIGNAL PLAYBACK...

Page 79: ...H22076A 1 2 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME CAUTION DIGITAL TRANSISTOR AT 5 6V GND VCR_POWER_H RESET IF_MOD SEN_LED CAP_F R MO_SY...

Page 80: ...50V KA C660 47 10V KA C662 2 2 50V KA C656 220 10V YK C605 1 50V KA C653 47 10V KA C642 47 16V KA C650 10 16V KA L609 2 7uH L606 1 2uH CF604 MKT31 5MA110P CF603 MKT41 5MA110P X604 4 433619MHz OF PRIN...

Page 81: ...2 B C4515_1 0 0022 B C4543 1 F C4506 47 16V KA C4514 47 16V KA C4501 10 16V KA CP605 8283_0412_00_000 1 2 3 4 L4504 10uH OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS...

Page 82: ...1058 1 F C702 0 01 B C1049 0 1 B C703 0 1 B C709 0 1 B OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME CAUTION DIGITAL TRANSISTOR RECORD LUMINANC...

Page 83: ...PAR UN ATTENTION Q353 DTC114EK SW W949 W834 W813 W810 W812 Q352 2SC2412K SW Q351 2SC2412K MUTE C351 33 16V KA C352 22 16V KA C353 1000 16V YK C368 1000 16V YK C354 1000 16V YK R315_1 390 1 4W R1100 3...

Page 84: ...5 43K R904 6 8K R903 6 8K R900 6 8K R860 1K R897 2 2K R881 220 R905 10K R869 12K R866 12K R871 12K R864 1K R868 1K R879 1K R861 12K R863 1K R867 12K R870 12K C862 0 1 B C853 0 022 B C885 100P CH C876...

Page 85: ...100K R6023 100 R6020 330 R6001_1 560 1 4W R6019 330 L6006 360K042 1 2 3 4 6 Q6005 2SC3000 PRE AMP Q6001 2SA608KF NP BUFFER W817 W816 W811 W804 W821 W803 W806 W819 OUTOUT G IN IN CF6002 SAF39 5MZL220ZL...

Page 86: ...02 D503 D501 TH501 R518 R450 R 5 0 5 CP501 D519 D512 W022 W015 CP401 Q502 W031 C423 R503 R506 D518 RY501 R553 Q503 CP803A HS503 HS501 W010 W045 Q805 R801 C801 J 8 0 1 CP801 T P 8 0 2 R 8 0 5 R815 R812...

Page 87: ...0P 2KV BP C409 0 0022 M C416 22P 500V SL C417 560P 500V B C418_1 1 160V MHE C421_1 1000 35V MHE OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME D...

Page 88: ...4 NJM7812FA 12V REG IC 1 2 3 IC505 KIA7806PI 6V POWER REG IC 1 2 3 IC502 NJM7805FD 5V REG IC 1 2 3 CAUTION DIGITAL TRANSISTOR IC501 STR F6707 POWER REG IC 1 2 3 4 5 HS503 763WAE0111 HS502 763WAA0046 H...

Page 89: ...ECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DESCRIBED IN PARTS LIST ONLY CRITICAL FOR SAFETY USE ONES ARE SINCE THESE PARTS MARKED BY CAUTION DANS LA NOMENCLATUR...

Page 90: ...V 5V SDA SCL AGC U IN 11 10 1 3 5 6 7 8 9 2 4 TU601 TUNER PACK IF 30V 5V SDA SCL AGC U IN 11 10 1 3 5 6 7 8 9 2 4 AT 6V AT 6V NC NC NC AT 5 6V AT 5 6V TV POWER H VCR POWER H TV POWER H VCR POWER H P C...

Page 91: ...20 s div 6 50 0V 20 s div 11 PB 2 0V 10ms div The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NAOTE DEFLECTION DEFLECTION CRT 12 PB 50mV...

Page 92: ...ms div 22 REC 2 0V 10ms div 21 REC 1 0V 2ms div The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE J 2 MICON 25 REC 1 0V 1 s div 26 RE...

Page 93: ...2 REC 0 5V 0 5ms div 33 REC 0 5V 10 s div 34 REC 200mV 0 5ms div 35 REC 2V 20 s div 36 REC 0 5V 10 s div 21PIN IN OUT 37 REC 0 5V 0 5ms div 38 REC 0 5V 10 s div 39 REC 0 5V 0 5ms div 41 REC 0 5V 1ms d...

Page 94: ...2 221 218 110 214 114 113 205 108 221 112 107 136 A 112 221 215 115 217 110 206 201 129 203 203 201 138 130 130 142 143 142 143 140 141 128 145 123 116 208 208 118 127 B 147 148 SP351 208 PCB030 OPERA...

Page 95: ...EXPLODED VIEW K1 2 A 133 206 206 207 134 212 115 204 204 204 B 135 131 220 111 216 144 144 216 PCB010 SYSCON PCB TU602 202 210 202 122 J4501 103 106 209 121 137 TU601 PCB350 IF PCB 153 151 150 ANT601...

Page 96: ...P A01 100 GUIDE REMOCON 1 206 S1 106 30A 240 SCREW TAP P 3 12 6 121 SHIELD COVER 1 207 S1 072 308 040 UT2 3 8 1 122 SHILED CASE 1 208 S1 106 30A 040 UIT 3 10 22 123 S2 344 901 020 BADGE BRAND 1 209 S1...

Page 97: ...509 329 330 502 502 PCB550 DECK PCB ASS Y 303 AA AD AD AD AD AA AD AD AA AA AB AB AD AD BA AA 352 503 503 367 501 356 317 369 309 355 Applying positions AA AB AC AD and BA for the grease or oil are d...

Page 98: ...AA AA AD AD AA AA AA AA AA AC AA 307 354 326 327 322 513 350 308 337 AA 325 AD AA AD NOTE Applying positions AA AB AC AD and BA for the grease or oil are displayed for this section Check if the correc...

Page 99: ...Y S 1 513 S2 P18 450 5N0 PW CUT 1 8 4 5 0 5 1 322 S5 OA6 001 910 CAP BRAKE ASS Y S 1 514 S3 ETW 300 000 E RING 3 2 323 S5 OA9 002 130 LINK ASS Y 1 515 S1 0A1 265 040 SCREW WASHER A M2 6 5 3 324 S5 OA...

Page 100: ...CAP E 220 6 3V D801 S2 8TE QS0 400 DIODE 11EQS04N TA C856 87 010 079 080 CAP E 100 6 3V D802 87 020 465 010 DIODE 1SS133T C857 87 010 112 080 CAP E 100 16V D852 87 020 465 010 DIODE 1SS133T C863 87 0...

Page 101: ...TR 2SC2412KT L4021 S2 1LA 622 0K0 COIL 22UH Q862 89 324 122 080 TR 2SC2412KT L4501 S2 167 D10 1K0 COIL 100UH Q863 89 324 122 080 TR 2SC2412KT L4502 87 003 152 010 COIL 100UH Q1001 S0 02M 005 700 PHOT...

Page 102: ...70 10V C530 SB 393 0M1 3M0 CAP CER 0 001 250V SWITCHES C531 S0 EL0 233 2M0 CAP E 3300 16V C532 S5 EZT 247 1M0 CAP E 470 16V SW750 S5 042 01T 310 SW TACT SKHVBED010 C536 S5 EZT 247 1M0 CAP E 470 16V SW...

Page 103: ...NS SWITCHING 8135040W CD501 S2 066 358 230 CORD AC 1206635823 VARIABLE RESISTOR OTHER VR502 S1 263 L2B TC0 SFR RH063MCN2R07 CD502 S6 CPU 201 2A0 CORD CONN CPU2012A CONNECTORS IF PCB ASS Y CP401 S6 9X4...

Page 104: ...IL L503 S2 8F1 400 180 COIL DEGAUSS 8F140018 TRANSFORMER FB401 S4 321 402 9F0 TRANS FLYBACK 3214029F OTHERS CD354 S6 CH1 243 4A0 CORD CONN CH12434A SP351 S7 0C5 330 080 SPEAKER 810 47 171 SP352 S7 0C5...

Page 105: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 737004 Printed in Singapore...

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