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Aiwa VX-T2170 ph Service Manual Download Page 78

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

CP4001(CP4104)

TMC-W16P-A1

1

10

11

12

13

14

15

16

2

3

4

5

6

7

8

9

IC4002

TL8850AP

CCD DELAY LINE

1

10

11

12

13

14

15

16

2

3

4

5

6

7

8

9

IC4001

TA1232AN

PAL Y/C SIGNAL PROCESS

1

10

11

12

13

14

15

16

17

18

19

2

20

21

22

23

24

25

26

27

28

29

3

30

31

32

33

34

35

36

37

38

39

4

40

41

42

43

44

45

46

47

48

49

5

50

51

52

53

54

6

7

8

9

TP4001_1

H.SW

RECORD LUMINANCE SIGNAL

PLAYBACK LUMINANCE SIGNAL

RECORD COLOR SIGNAL

PLAYBACK COLOR SIGNAL

CP4002_1

CH22070A

1

2

L4011

TP284XHS-

1502CYS

1/2FH_TANK

1

2

3

4

6

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

DURING PLAYBACK

MEASURED WITH THE DIGITAL TESTER

NOTE:

THE DC VOLTAGE AT EACH PART WAS

X4001

4.433619MHz

C4024

82P

CH

C4030

0.022

F

C4057

0.01

B

C4059

0.0047

B

C4050

0.01

F

C4052

0.01 B

C4074

180P

CH

C4085

0.01

B

C4045

27P

CH

C4056

0.1

F

C4091

150P

CH

C4092

150P

CH

C4022

33P CH

C4034

0.01

F

C4094

270P CH

C4040_1

0.1

F

C4089

0.1

B

C4015

620P

CH

C4051_1

0.1 F

C4026

100P CH

C4033

0.1

F

C4068

0.1

F

C4077_1

0.1

F

C4019

240P

CH

C4081_1

0.1

F

C4001

15P

CH

C4002

0.001

B

C4096

180P

CH

C4084

150P

CH

C4099

270P

B

C4011_1

0.1

F

C4012_1

0.1

F

C4010

0.01

B

C4073

0.001 CH

C4006

0.01

F

C4072

0.01

B

C4076

68P

CH

C4007

0.0015

CH

C4041

0.01

B

C4043

0.01

B

C4053

0.01

B

C4047

1F

C4093

20P CH

C4049

0.056

B

C4065

0.12

B

C4058

0.01

F

C4060

0.33

F

C4038

47P

CH

C4036

0.33

F

C4055

0.018

B

C4061

15P

CH

C4064

0.015

B

C4067

220P

CH

C4046_1

0.1

F

C4048

22

6.3V

KS

C4025_1

10

16V

KS

C4075

100

6.3V

KS

C4090

100

10V

KS

C4062

0.47

50V

KS

C4069

47

6.3V

KS

C4014

100

6.3V

KS

C4021

4.7

16V

KS

C4020

0.1

50V

KS

C4044

0.47

50V

KS

Q4007

2SC2412K

BUFFER

Q4013

2SC2412K

BUFFER

Q4009
2SC2412K

AMP

Q4015

2SC2412K

BUFFER

Q4001
2SC2412K

BUFFER

Q4004
2SC2412K

BUFFER

Q4016

2SC2412K

AMP

Q4006

2SC2412K

BUFFER

Q4010

2SA1037AK

BUFFER

Q4011

2SA1037AK

BUFFER

Q4012
2SA1037AK

BUFFER

Q4017

2SA1037AK

BUFFER

Q4005

2SA1037AK

BUFFER

Q4023

DTC143TKA

MUTE SW

Q4019

DTC143TK

TRICK
PB SW

Q4024
DTC143TK

SW

Q4018

DTC124EKA

SW

Q4026
DTC124EKA

TRICK PB SW

C4027

10
16V

KSNP

C4032_1

10

16V

KS

C4082

220

6.3V

KS

C4037

100

6.3V

KS

C4016_1

4.7

16V

KS

C4097

2.2

50V

KS

C4017_1

4.7

16V

KS

C4031_1

4.7

16V

KS

C4039

47

6.3V

KS

L4002

1mH

L4001

100uH

0607

L4004_1

1mH
0607

L4012

68uH

L4008

56uH

L4017

100uH

L4006

39uH

L4013

22uH

L4005

100uH

W859

W961

W968

W991

W818

W810

W962

W980

W966

W950

W874

W802

W724

R4013

1.5K

R4015

100

R4016

560

R4034

1.2K

R4047

82K

R4045

120K

R4033

1M

R4028

1.5K

R4064

330

R4065

10K

R4046

68

R4025

1K

R4032

2.2K

R4052

4.7K

R4022

560

R4042

8.2K

R4068

3.9K

R4044

1K

R4039

270

R4037

270

R4069

22K

R4074

150K

R4075

330K

R4036

4.7K

R4023

620

R4027

1.2K

R4070

390

R4071

390

R4011

680

R4079

180

R4043

2.2K

R4021

4.7K

R4019

1K

R4076

15K

R4029

680

R4002

820

R4054

820

R4061

68

R4083

270

R4006

2.2K

R4053

1.2K

R4018

15K

R4001

1.5K

R4003

1.8K

R4056

1.5K

R4010

12K

R4012

1K

R4080

220

R4020

10K

R4009

1.8K

R4008

6.8K

R4055

12K

R4007

1K

R4067

82K

R4062

100

R4049

2.2K

R4048

820

R4082

56

R4041

47K

R4063

10K

R4077

390K

R4026

1M

R4030

1.2K

R4078

4.7M

R4050

22K

D4002

LFB-01L

D4003

1SS133

B4002

LFP3A-M3R2TA

B4004

BL01RN1-A63

Q4020

DTC144EKA

SW

Q4021

DTC144EKA

SW

CAUTION: DIGITAL TRANSISTOR

S811X

S811Y

TP4002_1

ENV

TUNER VIDEO SIGNAL

IS NON POLAR ONE.

THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP

THE RESISTOR MARKED F IS FUSE RESISTOR.

NOTE:

IS NON POLAR ONE.

THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP

THE RESISTOR MARKED F IS FUSE RESISTOR.

NOTE:

V.REC_ST-H

TRICK_PB-H

AE/FE_HEAD

H.AMP_SW

ENV.DET

H.SW

SYNC

GND

SDA

SCL

V.OUT1

AT+5V

DV_SYNC[T]

DV_SYNC[S]

DV_SYNC

COLOR_SYSTEM

GND

P.CON+5V[B]

P.CON+9V

VCR_VIDEO_OUT

AT+5V

SWD_VIDEO_IN

TU.VIDEO[B]

GND

GND

GND

AE/FE_HEAD

SDA

SCL

DV_SYNC[T]

DV_SYNC

AV-H

COLOR_SYSTEM

V.REC_ST-H

ENV.DET

H.SW

DV_SYNC[S]

TRICK_PB-H

H.AMP_SW

SYNC

GND

NTSC-H

TRICK_PB-H

SWD_VIDEO_IN

TU.VIDEO[B]

REC-C_OUT

REC-C_OUT

NTSC-H

AT+5V

H.SW

SYNC

AV-H

V.OUT1

VCR_VIDEO_OUT

EE/VV_VIDEO_OUT

P.CON+9V

EE/VV_VIDEO_OUT

J-10

V V:THE PICTURE ON SCREEN APPEARS DURING PLAYBACK.

Y/C SCHEMATIC DIAGRAM

(SYSCON PCB)

FROM/TO SYSCON

FROM/TO MICON

FROM/TO TUNER/AUDIO

FROM/TO POWER I/O

TO CHROMA

(PAL MODE)

TO FE HEAD

FROM/TO HEAD AMP

VM8158

PCB010

0

0

0

2.5

2.3

2.7

0

NC

NC

NC

NC

NC

1.6

4.9

2.3

NC

VGG

S/N

VOB

+

PAL/4.43NT

/SECAM

CCD

INPUT

BIAS

CCD

/SECAM

PAL/4.43NT

CLOCK

DRIVER

1/3

COMP

LIMITER

DC FB

VCO

SHAPER

VOB

S/N

S/N

2.1

0

2.7

4.9

2.5

3.2

1.4

2.1

0

NC

NC

1.8

0

0

4.1

0

2.3

4.9

1.6

0.1

0

0

0

3.2

3

2

FE HEAD(HOT)

FE HEAD(GND)

1

NC

NC

2.2

1.6

NC

NC

NC

AE HEAD(-)

AE HEAD(+)

H.SW

V.REC ST-H

ENV.DET

GND

TRICK PB-H

GND

P.CON+5V

H.AMP SW

REC-Y/C

PB Y/C

H.SYNC

NC

NC

0

0

2.8

0

2.1

4.9

2.4

4.9

1.8

3.0

2.4

1.8

4.9

2.4

1.8

0

(AE/FE-HEAD)

(V.IN-GND)

(V.OUT-GND)

2.4

1.9

3.3

10.6

0

2.5

1.8

3.2

2.2

2.5

2.8

5.0

5.0

0

2.4

2.2

0

6

4.9

2.8

2.5

2.8

3.3

1.5

2.8

7

3.6

3.4

2.6

3.4

2.5

0.5

0.9

1.9

2.3

2.1

3.0

3.0

2.6

3.0

1.8

1.7

2.5

2.3

5.0

2.7

1.8

1.9

0.2

2.3

2.3

1.8

2.7

1.4

0

3.1

4.9

3.6

3.7

0

2.1

MAIN CONV.

R

R

P

P

SUB CONV.

VCO

PAL

NTSC

JUDGE
PAL

ON PAL

Y-COMB

GND

ENT

INT

IIC

MAIN

LPF

VCC1

DOC

N

REC

EQ

FM MOD

PB FM EQ

AGC

R

P

P

R

R

R

P

P

MESECAM

JUDGE

LPF

BURST
EMPH./
DEEMPH

PB C

LPF

B-ID

APC

VXO
/XO

VCC2

MAIN

BPF

NTSC
PAL

PULSE
GENE

PLL

HD

SYNC
SEP.

AP CONT.

FM

AGC

FM 
DEMOD

MAIN
EMPH

OSD
PV/PH

P

R

NT

MESEC

VCC3

ACC

NC

ACC

REC C

3.9

2.8

2.2

2.8

4

2.3

4.7

2.9

5

2.8

0.9

3.1

0

0

2.4

2.4

2.4

2.0

1.4

3.0

3.2

0

Summary of Contents for VX-T2170 ph

Page 1: ...ette PAL MESECAM SP 23 39 mm sec LP 11 69 mm sec NTSC Playback SP only 33 35 mm sec PAL MESECAM SP 4 hours 20 minutes max with E 260 tape LP 8 hours 40 minutes max with E 260 tape NTSC Playback SP onl...

Page 2: ...IF SCHEMATIC DIAGRAM PRINTED CIRCUIT BOARDS SYSCON Y C SCHEMATIC DIAGRAM SYSTEM CONTROL SCHEMATIC DIAGRAM TUNER AUDIO SCHEMATIC DIAGRAM POWER IN OUT SCHEMATIC DIAGRAM MICON SCHEMATIC DIAGRAM CHROMA S...

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 volt...

Page 4: ...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 5: ...e Cap Refer to REMOVAL OF ANODE CAP on PAGE 12 Disconnect the following connectors CP801 CP804 and CP850 Remove the CRT PCB in the direction of arrow Fig 1 2 1 3 TV VCR BLOCK Refer to Fig 1 3 1 2 3 4...

Page 6: ...k the support 2 Remove the Syscon PCB in the direction of arrow A Remove the 2 screws 3 Unlock the 2 supports 4 Remove the Jack Plate in the direction of arrow B Fig 1 7 Deck Holder 1 2 Syscon PCB A 3...

Page 7: ...he Locker R Cassette Side L Cassette Side R Link Ass y 3 NOTE When installing the BOT Lever insert the BOSS into the hole of Linl Gear R When installing the Link Ass y 3 and Link Gear R align the timi...

Page 8: ...on Arm Spring 2 NOTES 1 2 Install the Tension Band Ass y without twisting it Turbine Oil the area marked with A in Fig 2 7 1 1 1 Brake Bracket Sub Brake S Joint Arm Joint Arm Spring T S Brake Spring M...

Page 9: ...ller Remove the screw 2 Unlock the 2 supports 3 Remove the Cassette Opener Remove the Spring P5 and Arm P5 Ass y Remove the Cam Gear Polyslider Washer 4 Spring Cam Pinch and Cam Pinch Roller Remove th...

Page 10: ...lyslider Washer 1 2 Remove the Center Pulley 3 Remove the Polyslider Washer 2 4 Remove the Center Pulley Spring 5 Remove the Idler Arm Ass y 6 Remove the 2 Polyslider Washers 3 7 Remove the Clutch Gea...

Page 11: ...Fig 2 14 Loading Gear T Marker Loading Lever Tension Lever A Main Rod Ass y Tension Holder Main Rod Spring Capstan Brake Spring Capstan Brake Ass y Main Brake Lever Middle Gear Main Cam NOTE Use the s...

Page 12: ...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 13: ...linder Cylinder Motor Cylinder Sensor Data Syscon to Servo Decibel Direct Current Direct Drive Motor Unit Demodulator Detector Deviation Emitter Emitter Follower Emphasis Encoder Envelope End of Tape...

Page 14: ...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 15: ...r Refer to the figure below 2 TAPE RUNNING SYSTEM When cleaning the tape transport system use the gauze moistened with isopropyl alcohol 3 CYLINDER Wrap a piece of chamois around your finger Dip it in...

Page 16: ...e by setting VOLUME to minimum While holding down VOLUME button on front cabinet press key 6 on remote control simultaneously ADDRESS and DATA should appear as FIG 1 Fig 1 ADDRESS is now selected and...

Page 17: ...P0 Post P1 Post FE Head Cylinder Unit Auto Head Cleaning Head Amp PCB Audio Control Head 12 13 14 15 16 17 18 19 20 21 Loading Motor Pinch Roller Block Cam Gear Cassette Opener Brake Bracket Reel T L...

Page 18: ...29 30 31 32 33 Capstan Brake Ass y Bottom Plate Clutch Gear S Ass y Idler Arm Ass y Center Pulley Clutch Gear T Ass y FRONT LOADING UNIT 15 1 2 3 4 5 6 7 8 Side Bracket L Top Bracket Ass y Side Bracke...

Page 19: ...2 JG024 JG100A Remarks Stair Steps 6KHz Color Bar 1KHz Playback Take Up Torque Fast Forward Torque Rewind Torque Brake Torque Take up Reel Supply Reel Guide Roller Adjustment X Value Adjustment Reel D...

Page 20: ...LOCATION GUIDE The EOT BOT and Reel Sensor do not work at this moment At that time the STOP EJECT button is available to insert and eject the Cassette Tape PREPARATION FOR SERVICING Basic Servicing P...

Page 21: ...object which weighs between 350g and 500g on the Cassette Tape to keep it steady when you want to make the tape run without the Front Loading Unit 15 Do not place an object which weighs over 500g Whe...

Page 22: ...heck Items Replace Parts 1 4 Idler Ass y or Clutch ASS Y 1 5 Idler Ass y or Clutch ASS Y 1 6 Main Brake T Ass y or Main Brake S Ass y Tape running is adjusted precisely at the factory Normally it is n...

Page 23: ...the screw 3 Refer to Fig 2 2 until the height of the A C head reaches the position against the tape as shown in Fig 2 3 When the control head height is not correct When you must turn the screw more t...

Page 24: ...MAJOR COMPONENTS LOCATION GUIDE IC101 TU6001 TP4001 TP4501 CP6115 SYSCON VCR SECTION IC4001 IC601 TP4002 J4501 J4502 IC6001 L6011 L6012 CP6001 IF C101 TP1001 D2 1...

Page 25: ...king press both VOL DOWN key on the set and the channel button 4 on the remote control simultaneously and adjust the Tracking button until the arising to the down of the Head Switching Pulse becomes 6...

Page 26: ...ELECTRICAL ADJUSTMENTS 38 9MHz Fig 3 3 D2 3...

Page 27: ...MAJOR COMPONENTS LOCATION GUIDE TP801 TP803 J801 CRT TP401 T501 VR502 FB401 SCREEN VOLUME FOCUS VOLUME MAIN TV SECTION D3 1...

Page 28: ...NT MODE2 1 2 RED BIAS 3 GREEN BIAS 4 BLUE BIAS 5 GREEN DRIVE 6 BLUE DRIVE 7 NEXT 8 END Fig 4 2 ADJUSTMENT MODE3 1 BRIGHT 2 CONTRAST 3 COLOR 4 TINT 5 SHARPNESS 6 E RGB CONT 7 NEXT 8 END The adjustment...

Page 29: ...he remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum 4 10 OSD HORIZONTAL 1 2 3 Using the remote control set the brightness and contrast to normal position...

Page 30: ...3 and press the channel button 4 on the remote control Press the VOL UP DOWN button on the remote control until the waveform becomes as shown in Fig 4 9 Fig 4 9 0 80 100 4 18 CONSTANT VOLTAGE 1 2 3 S...

Page 31: ...rom the green raster pattern to the crosshatch pattern Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets Combine red blue magen...

Page 32: ...IC502 DC7 7V Does RY501 work Check P CON 5V line Check ICP502 D511 and D512 Check IC502 Check pins 62 and 63 of IC101 and peripheral circuit Check Q510 Q507 and the peripheral circuit Check Q504 RY50...

Page 33: ...ON 2 Is CP810 inserted Is the voltage at C507 about 180 360V Insert CD810 Check the circuit between F501 C507 and R501 Check IC501 and the peripheral circuit Yes Yes Yes Yes No No No No Replace F501 R...

Page 34: ...Check Sound B line Yes Is the voltage at pin 1 corrector of Q351 DC12V Yes Yes Is the voltage at CP301 changed with the volume up or down key No No No No Yes Is FUSE RESISTOR R517 broken Is the voltag...

Page 35: ...V line Adjust Brightness and Contrast Is the voltage at pin 17 of IC601 DC9V Is the voltage at pin 41 of IC601 DC5V Is the voltage at pin 8 38 of IC601 DC5V Is the signal at pin 12 13 and 14 of IC601...

Page 36: ...put Is the waveform 12 13 and 14 of IC601 normal Is the waveform at pin 42 of IC601 normal Is the waveform at pin 40 of IC601 normal Is the color signal received Is the color set to minimum NO COLOR R...

Page 37: ...pheral circuit Check peripheral circuit of IC601 Is the normal signal at pin 4 of IC 401 input OSD SCREEN DOES NOT APPEAR Is there a waveform at pins 18 19 and 20 of IC601 Check peripheral circuit of...

Page 38: ...WITCH DD MOTOR and CYLINDER MOTOR Does it Power off in about 3 seconds Yes No Check REEL SENSOR and REEL BELT Does it Power off in about 6 seconds Yes No Check REEL SENSOR IC1001 and REEL BELT slack D...

Page 39: ...Replace CYLINDER MOTOR Check R1059 R1080 and R1058 Replace IC1001 No Yes Yes No No Yes Is the voltage at pin 6 of CP1002 about DC13V In playback is the voltage at pin 3 of CP1002 about DC1 2V In play...

Page 40: ...o Yes Is AUDIO HEAD scratched Does pin 15 of IC1001 output a 3 0Vp p square wave 3 0V Check AUDIO BLOCK In playback is the voltage at pin 17 of CP1002 about DC1 6V In playback is the voltage at pin 14...

Page 41: ...MOTOR When a cassette is inserted is the voltage at pin 49 of IC1001 5V When a cassette is inserted is the voltage between pins 1 and 2 of CP1002 When cassette is not inserted is EOT BOT PULSE at EMI...

Page 42: ...FRONT LOADING GEARS Defective CASSETTE or FRONT LOADING UNIT In another cassette tape does the same problem appear In covering the infrared sensor is pin 2 and 4 of IC1001 5V When inserting cassette i...

Page 43: ...of CP1002 and peripheal circuit Check pin 45 of IC1001 lines change IC1001 Check DECK MECHANISM Is the voltage changing at pin 14 of CP1002 Is the voltage changing at pin 12 of CP1002 when you press...

Page 44: ...k R1059 R1080 R1058 and D1003 No Yes Does PG PULSE signal appear at pin 13 of IC1001 No No No Yes Is the voltage at pin 6 of CP1002 UNREG 12V Does DC5V PULSE signal appear at pin 44 of IC1001 Is the v...

Page 45: ...age at pin 3 of CP1002 1 2V In playback is the voltage at pin 3 of CP1002 about 1 2V When sloeing CYLINDER is the voltage 3 8V No Yes Replace CYLINDER MOTOR Replace IC1001 No No Yes Yes 5V Is FG Pulse...

Page 46: ...k IC4101 and CYLINDER UNIT Check CONTROL HEAD No Yes By manual tracking does the DC level at pin 6 of CP4001 change In auto tracking is the voltage at pin 5 of IC1001 more than DC1 85V No No Does the...

Page 47: ...ce CAPSTAN BELT No Check REEL SENSOR and that the voltage at pin 10 of CX1003 is DC5V No Does CAPSTAN DD MOTOR rotate Is CAPSTAN BELT OK Yes Does REEL SENSOR PULSE signal appear at pin 69 of IC1001 Ye...

Page 48: ...No Adjust GUIDE POST height Adjust PG SHIFTER No Does tracking noise appear in the picture Yes Yes Are GUIDE POSTS the right height No Check PB Y circuit Is PG SHIFTER Adjustment 6 5H Yes By adjustin...

Page 49: ...es Is the voltage at pins 12 28 and 54 of IC4001 5V No Yes Check IC4002 and the peripheral cicuit No Replace IC4001 Replace IC4001 No No Yes Is there Y signal at pin 27 of IC4001 and there CHROMA sign...

Page 50: ...7 and the peripheral circuit Replace IC4002 Does FM ENVELOPE appear at TP4002 Does CHROMA signal appear at pin 27 of IC4001 Does COMPOSITE signal appear at pin 16 of IC4002 Does COLOR BURST signal app...

Page 51: ...p p Is there FM signal at pin 11 of IC4001 140mVp p No Yes Replace IC4001 No Replace IC4002 No Yes Is VIDEO waveform at pin 6 of IC4001 over 500mVp p and are there any noise Yes Yes Check J4501 Is VID...

Page 52: ...in 29 of IC4001 No No No No Replace IC4101 Check IC4101 and peripheral circuit Replace J4501 Check VIDEO input circuit Does VCR signal appear at pin 53 of IC4001 Does FM signal appear at pin 8 of CP40...

Page 53: ...igh No No Does AUDIO signal appear at pin 7 of IC5001 Check AUDIO HEAD for debris of stains Check that the connector from AUDIO HEAD is fully inserted to CP4106 Replace IC 5001 If the pin 52 of IC1001...

Page 54: ...15 of CP1002 5V In playback is the voltage at pin 14 of CP1002 2 5V Replace IC1001 Does DD MOTOR rotate now If not replace DD MOTOR Check pins between 45 and 47 of IC1001 and peripheral circuit Replac...

Page 55: ...cuit Is there AUDIO signal at pin 14 of IC5001 Check the lead wire and connector to A C HEAD Check the circuit between audio out of Tuner and pin 10 of IC5001 No No Yes Yes No No No Yes Yes Yes Is the...

Page 56: ...ETTE IN AND DOWN UNIT HAS NO FUNCTIONS No Yes Yes No Check Operation PCB Does VCR operate with the remote control Check IC1001 Check LOADING MOTOR MODE SWITCH and the peripheral parts Does mode indica...

Page 57: ...CYLINDER UNIT and IC4101 circuit No No Check the circuit from VIDEO input jack to IC4001 from Tuner Pack to IC4001 Check the peripheral circuit of Q4007 Q4009 Replace IC4001 Replace IC4101 RECORDING...

Page 58: ...cuit Replace IC6001 and check peripheral circuits Check 9V and 5V line Check Q6002 Is there VIDEO signal at pin 20 of IC6001 Is defect present when replacing the IF PCB Is the voltage at pin 6 of TU60...

Page 59: ...ED VH O Forced VH 31 Not used 32 VSS Ground 33 RED O Color signal red output 34 GREEN O Color signal green output 35 BLUE O Color signal blue output 36 Y O Y signal output 37 HD I H pulse input 38 VD...

Page 60: ...HI FI L I Input selection of audio type 28 AUTO DET IN I Ground 29 BILINGUAL L I Input selection of audio type 30 STEREO L I Input selection of audio type 31 2HEAD 4HEAD I Input terminal for heads sel...

Page 61: ...ights at REC mode 61 T REC LED O Lights at T REC mode 62 CLOCK 0 Terminal to connect the oscillator 63 CLOCK 1 Terminal to connect the oscillator 64 VSS Ground 65 ATR LED O Lights at ATR mode 66 PLAY...

Page 62: ...OEC9032B SERVO TIMING CHART DRUM PG 3 PIN DRUM FG 1 PIN VIDEO H SW 8 PIN V SYNC 2 PIN PB CTL 9 PIN CTL OUT 0 PIN 6 5 H 6 5 H REC PB 30 Hz 720 Hz 30 Hz 30 Hz WAVEFORM CHANGES DEPENDED ON THE TAPE SPEE...

Page 63: ...STOP 2 FF REW SW 3 SW 2 SW 1 SW 0 DECK MODE VOLTAGE V 0 5 5 5 5 5 5 5 5 5 5 0 0 5 5 0 5 5 0 0 5 5 0 5 0 0 5 5 5 5 5 5 5 5 0 0 5 5 5 0 0 0 0 0 5 5 0 5 0 0 0 0 EJECT COMPLETE CASS IN COMPLETE UL START...

Page 64: ...N 10PIN 5PIN PST600H LA7832 KIA7805PI UPC574J T PQ09RD08 OEC9029A STR F6654 KIA7812PI TRANSISTOR 5PIN 2SA1371 D E AE DTC114TSTP DTC114ESTP 2SC4217 D E RAC 2SC2621 D E RAC 2SA1037AKT146R S LA7975 2SA73...

Page 65: ...IVE Q406 H OUTPUT IC401 LA7832 2 4 V OUTPUT DY EF G2 2 HV FB401 8 6 F 7 J801 11 DEGAUSS COIL AC IN G AMP Q805 B AMP Q806 R AMP Q804 CONSTANT VOLTAGE VR502 BUFFER Q612 100V SW Q501 100V DR Q502 Q503 BU...

Page 66: ...AMP Q4016 BUFFER Q4101 BUFFER Q4006 BUFFER Q4005 ENV DET 46 BUFFER Q4010 37 BUFFER Q4017 VCR VIDEO OUT AE FE HEAD CH2 L F CH1 2 S CH1 R F 2 3 4 CP4101 TUNER AUDIO IF CYL CYL PG CYL FG CYL DRIVE 1 3 5...

Page 67: ...EOT SENSOR BOT SENSOR 3 SW1010 REEL S 69 SUPPLY REEL SENS Q1053 REEL T 70 TAKE UP REEL SENS Q1054 63 62 CLOCK 0 CLOCK 1 X1001 Q756 STAND BY LED SW P CON 5V Q752 D793 D791 D792 44 PWM 0 12 DFG IN 13 DP...

Page 68: ...VIDEO AMP 17 IF AGC IF AMP 6 5 12 LIM FM DET 10 VIF SIF IC6001 M52313SP 11 TU6001 5 4 2 CF6004 SAW FILTER Q6003 AMP 2 VCR AUDIO OUT Q6101 T AUDIO MUTE TU MUTE Q6104 BUFFER AFT S CURVE IC6303 UPC574J Q...

Page 69: ...R6004 C6011 C6004 JP14 C6029 C6030 R6025 JP07 JP09 C6010 JP06 C6001 C6006 R6003 R6001 R6016 Q6002 C6017 C6008 R6015 R6014 C6024 C6023C 6022 Q6004 R6019 R6013 C6020_1 C6027 C6009 C6007 R6008 R6010 R600...

Page 70: ...P4104 C4107 W03 W04 W05 W08 W14 W13 L12 IC01 L09 CF01 L10 L07 JP01 IC02 X01 C25 C6002_1 L02 L11 CF03 C6021_1 JP03 JP04 R06 L05 R07 Q03 L04 CP01 R05 C6019 JP05 CF04 C6005_1 R20 L16 R24 CF6005 JP6004 JP...

Page 71: ...004 R6019 R6013 C6020_1 C6027 C6009 C6007 R6008 R6010 R6009 C6014 JP6005 R6018 R6012 C6035 IC4101_2 C4112 C4113 C4114 C4115 C4119 C4120 R4111 C4110 C4127 C4108 C4104 R4109 C4102 C4105 C4106 R4102 C410...

Page 72: ...2 7K R777 1 5K R776 1K R766 100 W811 W810 W812 W814 W808 Q756 DTC114TS STAND BY LED SW Q752 DTC114TS POWER LED SW Q751 DTC114TS PLAY BACK LED SW D792 SLZ 936C 07 S T1 POWER C779 0 001 B C781 0 001 B...

Page 73: ...SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE AT EACH PART WAS CYL_PG A CYL B A CYL_FG A GND_B CYL_DRIVE_A CYL_DRIVE_A GND_B CYL_FG A...

Page 74: ...006 2 2K R6010 4 7K R6011 56 R6004 1 5K R6018 560 R6015 220 R6025 330 R6029 5 6K R6014 820 L6004 12uH L6016 100uH L6007 6 8uH L6005 0 56uH L6010 33uH L6009 10uH L6008 10uH Q6002 2SA1037K BUFFER CP6001...

Page 75: ...Q4001 Q4010 Q4011 Q4013 Q4017 Q1018 Q1017 C4076 R4036 C4077_1 R6116 Q6101 W270 R136 R156 R6502 Q6504 Q6502 Q6503 R6503 R6509 R6508 R6514 C6510 C6511 R6504 R6515 R6517 C6512 W132 W135 R624 R623 C1032...

Page 76: ...055 W065 W170 W333 C4037 W061 W377 W378 W379 W380 W149 W148 W147 W143 W901 W401 W194 W900 W024 W063 W259 W235 W238 W331 W223 W118 W108 W295 W392 C1011 W232 W230 W229 W236 C1009 W340 D118 W175 CP802 W2...

Page 77: ...W927 W907 W880 W812 W892 W906 W984 W941 W977 W957 W915 W855 W995 W996 W705 W700 W985 W833 Q358 W903 W849 W838 C6002_1 W489 W490 R1071 W491 R190 W492 W828 W908 W330 W323 S807Y S807X C4093 W971 C4096 W4...

Page 78: ...4052 4 7K R4022 560 R4042 8 2K R4068 3 9K R4044 1K R4039 270 R4037 270 R4069 22K R4074 150K R4075 330K R4036 4 7K R4023 620 R4027 1 2K R4070 390 R4071 390 R4011 680 R4079 180 R4043 2 2K R4021 4 7K R40...

Page 79: ...7K R1023 47K R1091 10K R1025 10K R1057 22K R1045 4 7K R1046 22K R1039 1 5K R1041 56K R1040 4 7K 1 4W R1016 10K D1003 1SS133 D1008 1SS133 D1009 1SS133 D1005 11ES1N CAUTION DIGITAL TRANSISTOR S804Y MOTO...

Page 80: ...5005 1mH L5001 100uH 0607 L6103 100uH 0607 W882 W884 W813 W805 W873 W924 W923 W860 W886 W925 W919 W945 W930 W935 W971 W912 W844 W900 W931 W963 W722 W814 W972 R6115 470K R5014 22K R5006 10K R5008 18K R...

Page 81: ...R1099 10K R1096 10K R1097 220 1 4W R1098 10K R4518 68 R4514 100K D1007 11EQS04N B1002 BLM31A601SPT S805X P CON 9V B S804X MOTOR GND TUNER VIDEO SIGNAL IS NON POLAR ONE THE ALUMI ELECTROLYTIC CAPACITOR...

Page 82: ...R165 1K R162 1K R121 4 7K R124 10K R136 1K R140 5 6K R110 22K R163 2 2K R184 15K R141 10K R157 10K R134 10K R132 1 5K R159 10K R170 100K 1 4W R155 270 R156 270 R171 1 5K R6508 270 R164 330 R166 1K R16...

Page 83: ...43 6 8K R641 22K R656 100 R663 10M R666 5 6M R613 1K R628 15K R658 1M R669 1 5K R639 820K R634 270 R636 270 R631 270 R630 1K D606 1SS133 D608 LFB 01L D609 LFB 01L D610 LFB 01L D611 LFB 01L Q605 DTC114...

Page 84: ...0 1 TF C366_1 0 068 TF C352_1 33 16V KA C353_1 33 16V KA C355 47 16V KA C356 470 16V YK C358_2 1000 25V YK Q353 2SC1815Y SOUND OUTPUT Q351 2SC3419_Y SOUND OUTPUT Q354 2SC2412K SWITCHING Q352 2SA1356_...

Page 85: ...703 1SS133 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME W984 W995 W996 W929 W938 W822 W821 W997 W936 D705 1SS133 D706 11E1N CAUTION DIGITAL TR...

Page 86: ...SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME C623_1 0 068 TF C653 150P CH L601 10uH W705 W716 R674 1K CAUTION DIGITAL TRANSISTOR S815X S815Y TUNER VIDEO SIGNA...

Page 87: ...1 C407 D520 W034 W818 C512 CC3 HS402 W027 W012 W031 R409 W024 SW501 W040 W039 CP801 CP501_1 R533 W047 W043 W042 C429 C819 R404 W002 D517 C541 C540 B403 W041 C805 C801 W049 W028 R511 W016 W017 R506 W06...

Page 88: ...47 68 1 2W R450 3 3 1W R448_2 1K 1W R445 2 2K 3W R446 2 2K 3W R452_2 2 2 1W R449 5 6 7W B G R 11 6 8 10 9 1 7 5 V801 A51KSV43X06 MU C421 1000 35V VZ C418_1 1 160V VZ OF PRINTING AND SUBJECT TO CHANGE...

Page 89: ...06 0 22 250V MMCA C554 0 01 M R535 4 7K R519 100K 1 2W R529 2 7K 1 4W R524 22K 1 4W R518 10K 1 4W R521 10K R523 10K R511 680 1 2W R514 820 R520 10K R530 390 R506 1 8K 1 2W R503 3 3K R507 10K 1 4W R536...

Page 90: ...470 1 4W R811 4 7K R812 4 7K 1 4W R813 4 7K R821 4 7K R807_1 2 7K 1 4W R808_1 2 7K 1 4W R820_1 2 7K 1 4W R814 240 R816 240 R815 240 1 4W D802 1SS133 D801 1SS133 Q805_1 2SC4217 GREEN AMP Q804_1 2SC421...

Page 91: ...ED GND AT 5V 9V GND B Y G Y R Y TE8941 PCB340 BULE BROWN TM8395 PCB070 DEGAUSS COIL DEGAUSS COIL AT 12V AT 12V AT 12V AT 12V AT 30V AT 5 6V MOTOR GND GND P CON 9V POWER FAIL DC ABCL ABCL CD757 SP OUT...

Page 92: ...iv 9 REC PB 200mV 10V div 10 12 REC PB 0 5V 0 2V div REC PB 20mV 0 5V div 11 Y C WAVEFORMS REC PB 0 5V 5V div 13 REC PB 20mV 5V div 14 REC PB 2V 5V div 14 REC PB 0 5V 5V div 15 REC PB 1V 2U div 16 REC...

Page 93: ...N HEAD AMP 2V 5V div 34 5V 20U div 35 REC 50mV 10U div 42 50V 20U div 36 CRT REC PB 10mV 1s div 43 50V 20U div 37 PB 50mV 50V div 44 The following waveforms were measured at the point of the correspon...

Page 94: ...PCB ASS Y J801 114 102 PCB070 MAIN PCB ASS Y 225 110 116 216 145 117 143 215 214 158 214 207 144 207 203 FB401 115 B 152 157 207 118 114 211 142 220 220 140 PCB340 POWER SW PCB ASS Y 127 128 SP352 213...

Page 95: ...136 211 B 155 149 151 150 119 PCB330 HEAD AMP PCB ASS Y 106 113 107 114 PCB010 SYSCON PCB ASS Y 213 213 204 204 204 206 219 219 216 224 224 223 222 111 202 PCB350 IF PCB ASS Y 120 121 112 205 103 214...

Page 96: ...010 SCREW VT2 4 12 1 124 S1 2WP J05 960 FLAP 1 207 87 753 095 410 SCREW TT B BRAZIER 3 8 7 125 S1 3WP A00 810 GLASS LED 1 208 S1 106 30A 040 UIT 3 10 14 126 S1 3WP A00 820 GUIDE REMOCON 1 209 S1 106...

Page 97: ...3 310 512 311 312 321 316 309 304 305 316 313 319 320 503 322 M101 503 323 504 511 324 325 329 515 327 307 326 334 338 337 335 340 336 516 339 516 509 333 332 331 330 UN4001 M2003 H5001 315 510 510 32...

Page 98: ...LODED VIEW BOTTOM VIEW 350 342 M2001 344 346 352 351 348 349 347 345 366 364 365 506 515 359 517 361 362 367 355 356 353 354 357 357 507 504 503 358 343 369 SW101 502 502 504 506 341 363 504 504 518 5...

Page 99: ...FRONT LOADING UNIT 15 EXPLODED VIEW 421 403 420 404 407 405 401 410 408 421 416 417 406 409 419 425 402 415 412 411 411 424 422 413 414 422 423 426 418 M1 3...

Page 100: ...600 5N0 POLY W CUT 1 6 6 0 5 2 333 S5 OP2 002 170 REEL T 1 507 87 264 074 410 SCREW TAP B PAN 2 6 8 3 334 S5 OP4 004 460 CATCHER P5 VP 1 508 S1 5DJ 203 020 SCREW M2 3 2 335 S5 OP6 004 650 SUB BRAKE S...

Page 101: ...630 080 CAP E 0 22 50V D352 87 020 465 010 DIODE 1SS133T C662 87 010 371 080 CAP E 470 6 3V D604 S9 7U0 5R1 1B0 ZENER MTZJ5 1B C663 87 015 677 080 CAP E 100 6 3V D606 87 020 465 010 DIODE 1SS133T C100...

Page 102: ...L6103 S2 167 D10 1K0 COIL 100UH Q1028 89 324 122 080 TR 2SC2412KT Q1029 SB WT0 092 600 TR 2SB926 S T PF5001 S3 262 300 380 COIL TRAP 2623003 Q1030 89 324 122 080 TR 2SC2412KT Q1031 SB 3T0 069 800 TR...

Page 103: ...5 042 01T 310 SW TACT SKHVBED010 C526 87 A10 373 080 CAP E 220 6 3V SW797 S5 042 01T 310 SW TACT SKHVBED010 C530 SB 3LB 0MQ 2K0 CAP CER 470PF 250V SW798 S5 042 01T 310 SW TACT SKHVBED010 C531 87 010 2...

Page 104: ...B401 S2 4AT 036 550 CORE BEADS BL01RN1 A63T6 TRANSISTORS B402 S2 4AT 036 550 CORE BEADS BL01RN1 A63T6 B403 S2 4AT 036 550 CORE BEADS BL01RN1 A63T6 Q801 84 LB2 698 080 TR 2SA733 C T B501 S2 41T 025 310...

Page 105: ...PLUS SDDFC3056A CONNECTOR CONNECTOR CD301 S6 8D1 241 4A0 CORD CONN 8D12414A CP501 S6 944 301 000 CORD CONN 2 173270 3 AC CORD OTHER CD501 S2 0T6 508 040 CORD AC 0T650804 CD502 S6 CPU 201 2A0 CORD CON...

Page 106: ...920074 Printed in Japan 2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111...

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