background image

6200

R3008

0.1

C3010

0.1

C3011

0.1

C3014

33P

C3012

270U

L3012

3900

R3012

8200

R3011

150P

C3008

1500

R3009

PT

R4002

4700

R4004

PT

R4006

PT

R4008

PT

R4005

PT

R4001

PT

R4007

8200

R4003

1

C3015

1

C3017

1

C3019

PT

C3024

0.1

C3023

0.1

C3030

0

R3029

PT

R3031

1

C3032

0.1

C3033

0.1

C3037

0.1

C3036

0.01

C3041

0.01

C3042

PT

C3043

6R8M

R3041

PT

R3043

L3043

PT

PT

C3044

0

R3042

0.01

C3049

330P

C3046

PT

C3047

Q3046

PT

0.01

C3053

PT

R3053

0.01

C3054

R3057 PT

1

C3058

2P

C3059

1000P

C3061

0.1

C3062

L3059
12U

0.22

C3051

1K

R3066

4700P

C3066

0.033

C3068

X3001

H0D357400068

X3002

PT

0.022

C3070

27K

R3070

0.47

C3069

PT

C3078

10K

R4079

15K

R3080

IIC_DATA

IIC_CLOCK

PT

R3081

0.01

C5085

15K

R4098

Q4102
2SD1149A

Q4103
2SD1819ARS

Q4101
UN2111

R4102

1K

1K

R4103

1800P

C4083

L4096

0

L4095

0

C4097 PT

15P

C4081

0.01

C4095

330K

R4094

10K

R4092

270

R4093

470P

C4101

0.033

C4100

Q4104

PT

R4106
3300

1800P

C4102

0.022

C4103

P4001

2

FULL_ERASE

1

FULL_ERASE

Q4097
PT

PT

C4084

15K

R4097

0.1

C4091

0.22

C3021

0.01

C5091

0.01

C5089

0.01

C5087

0.1

C5083

HIFI_HEAD_R

FM_MIX

HIFI_HEAD_L

TRACKING_ENVE

0.1

C3083

J_CLK

SW_+5V_VIDEO

VIDEO_HSW

A_MUTE_H

Q3030
2SD1819A

Q3060

2SD1819A

Q3029

PT

Q4107
UN2213

Q4106
2SB0710A

1K

R3060

0.1

C3060

FSC

PAL_PB_L

PT

R3030

PB_5X_H

P_SAVE_L

910

R3028

VIDEO_OUT

0.1

C3029

UNSW_+6V

2200

R4108

2200

R4109

V_D_REC_H

SP_L

6800

R3022

4700

R3016

AVR_L

SVHS_PB_H

ART_V/H/N

NOR_AUDIO_OUT

L4123
0

L4122
0

0

R4123

PT

C4123

AUDIO_IN1_L

PT

C4124

0

R4124

AUDIO_IN1_R

75

R3101

0

R4122

PT

C4122

HIFI_OUT_R

0

R4121

PT

C4121

PT

C4125

HIFI_OUT_L

NOR_AUDIO_IN

100

R4606

PT

R4607

1500P

C4607

68

R3100

Q3301
2SB0709A

0.1

C3301

0.1

C3302

680

R3302

470

R3301

CV_OUT

SW_+12V

TP3100
PT

75

R3102

AUDIO_IN2_L

AUDIO_IN2_R

HIFI_MIX_OUT

SW_+30V

CH_SW

TV_L/VTR_H

SIF_IN

AFT

SW_+5V_TUNER

NA_PB_SW_ON_L

CTL_HEAD-

C

Q3061
PT

BW_H/COLOR_L

PT

R3061

A_COMPO

P3501

1

GND

0

R3036

PT

C3035

PT

C3034

PT

L3036

33U

L3303

PT

R3201

PT

R3202

PT

R3203

PT

C3201

HIFI_ADJ_L

HIFI_FSC

PT

C3077

PT

C7002

PT

C7003

L7002

0

PT

C7004

PT

R4701

PT

R4702

PT

C7005

0

R7012

C7012 27P

220

R7011

27P

C7011

L7004

W

A

5

PT

C7007

PT

C7008

1000P

C7009

PT

C7013

L7016

100U

L7006
WA5

PT

C7010

PT

C7015

PT

C7014

PT

L7001

0

L4134

0

L4135

0

R4134

0

R4135

PT

C4134

PT

C4135

PT

TP3003

PT

TP3004

Q4105
2SD0602ARL

1500

R3017

Q3200
PT

Q4150
PT

0

R4107

Q3012
UN2213

1000P

C4093

11K

R4101

1800P

C4085

L4121
0

PT

C4001

C7017 1000P

68U

L3302

PT

D3101

PT

D3102

PT

D3103

PT

D3104

220

R3119

PT

D7001

220

R3117

PT

L7017

PT

R7007

0

L5087

0

L5085

0

L5089

0

L5091

UNSW_+5V

0

L5090

0

L5086

PT

R7008

PT

R7018

Q7001
PT

0

R7013

100

R3073

100

R3074

10/16V

C4005

10/16V

C4606

10/16V

C3007

22/6.3V

C4000

10/16V

C3040

47/6.3V

C3050

47/6.3V

C3052

3R3/50V

C3064

2R2/50V

C3065

4R7/25V

C3075

PT

C3081

4R7/25V

C4098

3R3/50V

C4082

33/16V

C4096

2R2/50V

C4094

47/6.3V

C4104

4R7/50V

C3018

47/16V

C3303

470/6.3V

C3304

330/6.3V

C7006

C7016 PT

PT

C4105

PT

C7001

47/6.3V

C3022

PT

C4092

3R3/50V

C3039

PT

C7020

P4002

1

A_E_IN

2

GND(E)

3

A_HEAD(W)

4

A_HEAD(R)

5

CTL_HEAD(-)

6

CT)

L3301 15U

L4101

220U

L3304
68U

J5087
PT

J5085
PT

J3082 PT

J3029
PT

J4121

PT

J4002 PT

J4103
0

J4150
0

WA

5

J7003

PT

J7002

J7007

PT

J7005
0

J7004 PT

WA17.5

J4001

PT

J4134

J7018
PT

WA5

J7019

PT

J7020

0

J3101

0

J3102

0

J3103

0

J7021

L5084
56U

JK3001
K2HA612B0045

JK3002
K2HA306B0058

7

6

5

4

3

2

1

P5002

9

A_R

8

A_COM

7

A_L

6

SP_L

5

SP_COM

4

SP_R

3

EP_L

2

EP_COM

1

EP_R

U7001
J3AAADB00004

VIDEO_OUT

18

NC

17

BTL_30V

16

SIF_OUT

15

NC

14

AFT

13

SD

A

12

SCL

11

NC

10

NC
9

NC
8

NC
7

VIDEO_IN
6

TV/VTR
5

BC
4

CH_SW
3

A

UDIO_IN

2

BB
1

IC3001
C1AB00002002

1

3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99

100

26 27 28 29 30

76

77

78

79

80

2

T4101
G2A472C00003

1

2

3

4

6

WA5

TP3001

100/6.3V

C5084

WA20

TP3002

WA15

TP4002

AUDIO
IN(R)

AUDIO
IN(L)

VIDEO
IN

VIDEO
OUT

VIDEO
IN

AUDIO
OUT(L)

AUDIO
IN(L)

AUDIO
OUT(R)

AUDIO
IN(R)

(TUNER UHF/VHF)

61

TO MIV

9

TO MI

(AMP)

LINEAR AUDIO
REC ON-OFF

LINEAR AUDIO
REC ON-OFF

LINEAR AUDIO
REC ON-OFF

(BIAS OSC)

(ERASE HEAD DRIVE)

(ERASE HEAD DRIVE)

SWITCHING
SP-OFF

(AMP)

(AMP)

VIDEO/AUDIO
PROCESS/HEAD AMP

(TO CYLINDER UNIT)

(TO FULL ERASE HEAD)

(TO AUDIO CONTROL/ERASE HEAD)

(TO MECHANISM CHASSIS)

17

TO MI

TO MI

40

TO MI

21

TO MI

26

TO MI

25

51

TO MIV

52

TO MIV

53

TO MIV

TO MV

7

TO MI

27

4

TO MI

TO MI

2

5

TO MI

TO MI

6

19

TO MI

TO MIV

56

TO MI

38

39

TO MI

TO MI

12

TO MI

11

TO MV

54

TO MI

10

TO MIV

58

TO MIV,MVI

60

TO MV

55

59

TO MIV

44

TO MI

41

TO MI

TO MI

42

3

TO MI

TO MI

18

TO MV

57

62

TO MIV

63

TO MIV

TO MIV

64

TO MIV

65

TO MIV

66

67

TO MIV

TO MV

70

8

TO MI

29

TO MI

23

TO MI

TO MIV,MVI

68

TO MV

69

CAPSTAN SERVO

PB VIDEO SIGNAL

REC VIDEO SIGNAL

REC AUDIO SIGNAL
PB AUDIO SIGNAL

NOTE:
FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES,
REFER TO BEGINNING OF SCHEMATIC SECTION.

NOTE:
For placing a purchase order of the parts,
be sure to use the part number listed in the parts list.
Do not use the part number on this diagram.

MAIN II (VIDEO SIGNAL PROCESS / AUDIO) SCHEMATIC DIAGRAM

LINK TO VOLTAGE CHART

MAIN II (VIDEO SIGNAL PROCESS / AUDIO) SCHEMATIC DIAGRAM

COMPARISON CHART OF
MODELS & MARKS

PV-V4524S
PV-V4624S
PV-V464S

A
B

C

Not Used

PT

MODEL

MARK

PV-V4525S/PV-V4535S-K/PV-455S-K

NOTE:

PARTS MARKED "PT" ARE NOT USED.

LSJB2202

PV-V4525S / PV-V4535S-K / PV-455S-K

20

Summary of Contents for PV-V4525S

Page 1: ...horized copying and distribution is a violation of law PV V4525S PV V4535S K PV 455S K Video Cassette Recorder For servicing the R4 Mechanism Chassis for PV Model Please refer to the R4 Mechanism Chas...

Page 2: ...4 SPECIAL NOTE 11 4 15 MODEL NO IDENTIFICATION MARK 11 5 DISASSEMBLY ASSEMBLY PROCEDURES 12 5 1 CABINET SECTION 12 5 2 MECHANISM SECTION 14 6 ADJUSTMENT PROCEDURES 15 6 1 MECHANICAL ADJUSTMENT 15 6 2...

Page 3: ...K 1 Unplug the AC cord and connect a jumper between the two prongs on the plug 2 Measure the resistance value with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on th...

Page 4: ...antistatic ESD protected can generate electrical charge sufficient to damage ES devices 5 Do not use freon propelled chemicals These can generate electrical charges sufficient to damage ES devices 6 D...

Page 5: ...case of using high temperature soldering iron please be carefull not to heat too long Pb free solder will tend to splash when heated too high about 1100 F 600 C All products with the printed circuit b...

Page 6: ...CR in Shut off condition Fig 1 1 2 Fault code 4 digit number will be displayed in F I P as shown Fig 1 2 4 1 1 Explanation of I2 C bus transmission number The condition of I2 C bus transmission befor...

Page 7: ...4 1 3 Explanation of Error code number The detecting condition and movement of mechanism is displayed Fig 1 5 7 PV V4525S PV V4535S K PV 455S K...

Page 8: ...fter replacing the Cylinder Unit press COUNTER RESET button on remote controller in this mode Total elapsed Cylinder rotation time in hours will be cleared to 0 2 To release from Usage Screen Mode pre...

Page 9: ...emoving Cassette Up Ass y it can be confirmed without a cassette To enter Service Mode Press and hold FF and CH UP buttons on the VCR together over 5 seconds in power off condition The unit goes into...

Page 10: ...nd CH DOWN button on VCR together again 4 9 HOW TO RESET ALL VCR MEMORY FUNCTIONS To reset clear the select language channel auto set and set clock functions to their initial power on condition power...

Page 11: ...dents resulting in personal injury from electrical shocks It will also protect VCR from being damaged by accidental shorting that may occur during servicing Also when troubleshooting the above type of...

Page 12: ...der described in the Disassembly Flowchart shown below When reassembling use the reverse procedure CAUTION Disconnect AC plug before disassembly or assembly 5 DISASSEMBLY ASSEMBLY PROCEDURES 5 1 1 Dis...

Page 13: ...Fig D2 13 PV V4525S PV V4535S K PV 455S K...

Page 14: ...ure that all locking tabs are aligned properly Then press the Front Panel straight in Fig D3 3 Installation of Mechanism Chassis and Cassette Up Ass y onto Main C B A a Make sure the Mode Select SW on...

Page 15: ...Determine the Video Head Switching Point during Playback Symptom of Misadjustment May cause Head Switching Noise and or Vertical Jitter Test Point TP3001 Main C B A TP6205 Main C B A Specification T...

Page 16: ...ote Then COMP will appear on the TV monitor and adjusted value will be written to Memory IC IC6004 Fig E4 6 Press STOP button on the remote to release from EVR PG SHIFTER ADJUSTMENT MODE 6 3 TEST POIN...

Page 17: ...Diagrams Example 6 2V Zener Voltage 2 How to identify Connectors Each connector is labeled with a Connector No and Pin No Indicating what it is connected to in other words its counter part Use the int...

Page 18: ...58 FIP_OFF_L 59 NC 60 NC 61 TV_L VTR_H 62 NC 63 NC 64 NC 65 UNLOADING_H 66 PANE_CS 67 LOADING_H 68 MASTER_DATA_1 69 SLAVE_DATA_1 70 SCK_1 71 IIC CLK 72 IIC DATA 73 256Hz ROM COLE 74 CAP R F 75 TIMER_L...

Page 19: ...nal 39 12MHz OUT O Main clock 12MHz OSC output terminal 40 GND OSC Digital GND for OSC circuit 41 NC Not used 42 NC Not used 43 NC Not used 44 LC OSC IN I Input terminal of the LC Oscillation For OSD...

Page 20: ...C4005 10 16V C4606 10 16V C3007 22 6 3V C4000 10 16V C3040 47 6 3V C3050 47 6 3V C3052 3R3 50V C3064 2R2 50V C3065 4R7 25V C3075 PT C3081 4R7 25V C4098 3R3 50V C4082 33 16V C4096 2R2 50V C4094 47 6 3V...

Page 21: ...YNR PG AGC DET N L DE EMPH SQPB EQ Y LPF TRAP NC HP NC DEH N L EMPH ET LPF PC VIDEO AGC ATT 4dB ATT 10dB ATT 6dB ATT 10dB ATT 10dB 629 TRAP 6dBAMP C K NP CONV B D PILOT ERASE BPF PILOT ADD V AMP SQUE...

Page 22: ...309K SW6317 EVQ21309K STB NP GND DIN NP OSC NP NP VDD CLK VDD NP NP NP GND CH POWER CH REC IIC SERVICE FF PLAY REW STOP NONE NONE PT LED DRIVE LED DISPLAY PANEL 30 TO MI TO MI 31 32 TO MI 33 TO MI TO...

Page 23: ...0 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 10 16V C4233 10 16V C4234 33 6 3V C4237 47 6 3V C4240 2R2 50V C4244 10 16V C4218 10 16V C4217 33...

Page 24: ...F PNR LCH AGC GND PREAMP SWITCH VCC REC DC2 HIFI PLAY H NOISE DET PNR RCH BPF BPF LPF FM MODULATOR DEMODULATOR AGC SWITCH MUTE REC AGC ADJ GND VCC FSC MTS MUTE IIC BUS INTERFACE REC AUDIO SIGNAL PB AU...

Page 25: ...07 PT R1211 WA5 R1026 4R7 R1011 470 R1010 WA7 5 R1027 B1AZKD000001 IC1002 1 2 3 J1213 WA7 5 J1212 PT PT J1004 PT J1005 J1201 W22 5 WA5 J1209 J1203 WA5 WA10 J1002 WA10 J1001 PT J1211 J1210 WA5 WA5 J120...

Page 26: ...14 XTALO 15 XTALI 16 TP3 17 TEST2 18 Iref 19 ADDR2 20 VSSA2 21 VDEC 22 TEST1 25 SIF1 26 CRESET 27 VSSA3 28 VDDA3 29 SCL 30 SDA 31 SDO 32 WS 33 SCK 23 SIF2 24 Vref1 37 P1 38 MONOIN 39 EXTIR 40 EXTIL 4...

Page 27: ...VHF IN UHF VHF OUT PIN 18 Pins TUNER UHF VHF 8 Pins PIN LED DISPLAY PANEL 3 Pins PIN INFRARED RECEIVER UNIT VIDEO OUT VIDEO IN 1 AUDIO OUT L CH AUDIO IN 1 L CH AUDIO OUT R CH AUDIO IN 1 R CH VIDEO IN...

Page 28: ...4 4 7 4 7 IC6004 1 0 0 2 0 0 3 0 0 4 0 0 5 3 0 3 0 6 3 3 3 3 7 0 0 8 5 2 5 2 IC6005 1 5 2 5 2 2 5 2 5 2 3 0 0 4 5 5 2 5 2 6 IC6201 1 11 9 11 9 2 1 8 1 8 3 0 0 4 0 3 0 3 5 0 0 6 0 0 7 16 5 16 5 8 0 0 9...

Page 29: ...2 0 3 2 3 4 0 5 2 3 6 2 4 7 2 1 8 0 3 9 0 10 0 11 0 12 2 1 13 2 5 14 0 15 0 16 2 5 17 0 7 18 2 5 19 2 5 20 2 0 21 2 0 22 2 0 23 0 24 2 0 25 4 9 26 2 0 27 0 28 4 1 29 1 4 30 0 7 31 0 1 32 2 4 33 2 4 3...

Page 30: ...PV V4525S PV V4535S K PV 455S K 30...

Page 31: ...E B Q3200 C E B Q4259 Q4202 Q7001 C E B C E B C E B C E B Q1214 C E B Q6301 C E B Q6009 C E B Q6004 Q6005 Q6003 C E B Q1211 C E B R1018 1 3 5 4 4 5 3 1 1 3 6 4 1 3 5 4 C1024 C1025 C1014 R1021 C1026 C1...

Page 32: ...PV V4525S PV V4535S K PV 455S K 32...

Page 33: ...EO TO VIDEO SYSTEM CONTROL UNSW 6V TO AUDIO PRIMARY IC1001 FROM SYSTEM CONTROL IC6001 3 5 IC1203 1 5V SW REG IC1202 5V SW REG 1 3 5 TP1204 TP1205 TO TIMER DISPLAY SW 5V MTR TO SERVO CAPSTAN IC6201 13...

Page 34: ...HP NC TRAP NC PHASE COMPARATOR DEH NON LINEAR EMPHASIS 15 17 19 23 26 33 35 37 38 40 49 51 36 12 9 67 63 20 8 PEAKING FILTER L3012 C3012 S VHS PB H TO SYSTEM CONTROL SVHS SVHS R ATP R P P R EXT INT P...

Page 35: ...UDIO HSW FROM SYSTEM CONTROL 27 HIFI FSC FROM VIDEO 45 VCO F0 AUDIO IN2 L AUDIO IN2 R TP4202 TP4201 OUT L OUT R IN L IN R AUDIO OUT L AUDIO OUT R AUDIO IN1 L AUDIO IN1 R 3 5 JK3002 FRONT JACK JK3001 R...

Page 36: ...3 IC6003 S REEL SENSOR 5V SW6002 SAFETY TAB SW Q6007 SUPPLY PHOTO SENSOR D6001 SENSOR LED Q6006 TAKE UP PHOTO SENSOR 38 12MHz IN 39 12MHz OUT X6001 IIC CLOCK 34 2 OUT IC6005 RESET SW6322 CH UP CYLINDE...

Page 37: ...10 EXPLODED VIEWS 10 1 MECHANISM SECTION 37 PV V4525S PV V4535S K PV 455S K...

Page 38: ...10 2 CHASSIS FRAME AND CASING PARTS SECTION 38 PV V4525S PV V4535S K PV 455S K...

Page 39: ...10 3 PACKING PARTS AND ACCESSORIES SECTION 39 PV V4525S PV V4535S K PV 455S K...

Page 40: ...mechanical parts except the Cylinder Kit Ref No 1 and the Cassette Up Ass y Ref No 51 After replacing the Mechanical Chassis Sub Ass y be sure to perform TAPE INTERCHANGEABILITY ADJUSTMENT in Service...

Page 41: ...OVER 2 104 VYPS7170 FRONT PANEL ASS Y 2 Ref No Part No Part Name Description Remarks 105 LSGP0439 CASSETTE DOOR LID 2 106 LSMB0310 CASSETTE DOOR SPRING 2 110 LSGF0531 POWER BARRIER 2 111 VMX3115 MECHA...

Page 42: ...P Q6003 B1ABCF000106 TRANSISTOR SI NPN CHIP Ref No Part No Part Name Description Remarks Q6004 2SB0709A0L TRANSISTOR SI PNP CHIP Q6004 B1ADCC000004 TRANSISTOR SI PNP CHIP Q6004 B1ADCF000001 TRANSISTOR...

Page 43: ...W 47K R4217 ERJ3GEY0R00V MGF CHIP 1 16W 0 Ref No Part No Part Name Description Remarks R4219 ERJ3GEYJ822V MGF CHIP 1 16W 8 2K R4220 ERJ3GEYJ822V MGF CHIP 1 16W 8 2K R4224 ERJ3GEYJ822V MGF CHIP 1 16W 8...

Page 44: ...3A821KBP CERAMIC 1KV 820PF C1030 ECKATS103MF CERAMIC 250V 0 01UF Ref No Part No Part Name Description Remarks C1205 ECEA1CKA220 ELECTROLYTIC 16V 22UF C1206 F1H1C104A008 C CHIP 16V 0 1UF C1207 F1H1C104...

Page 45: ...C6108 ECEA0JKA101 ELECTROLYTIC 6 3V 100UF C6110 F1H1C104A008 C CHIP 16V 0 1UF C6111 F1H1C104A008 C CHIP 16V 0 1UF C6147 ECJ1VF1H103Z C CHIP 50V 0 01UF C6154 ECJ1VB1H333K C CHIP 50V 0 033UF C6156 ECJ1...

Page 46: ...K SWITCH PUSH SW6322 EVQ11A09K SWITCH PUSH SW6323 EVQ11A09K SWITCH PUSH SW6325 EVQ11A09K SWITCH PUSH SW6326 EVQ11A09K SWITCH PUSH SW6327 EVQ11A09K SWITCH PUSH FUSE PROTECTOR Ref No Part No Part Name D...

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