Philips 14PV-120, 14PV-125, 14PV-225, 14PV-422, 14PV-425 Service Manual

TV-VCR Combination

Service Service

14PV120 14PV125 14PV225

/07

/01/07/39/58

Service

14PV422 14PV425

/01/07/39/58

/07

Service Manual

Contents

Chapter

Adjustment Procedure

Sec. 1:

Schematic Diagrams and CBA's Exploded Views Mechanical and Electrical Parts Lists

Survey of versions:

/01 PAL-BG, EURO /07 PAL I, UK/IRELAND /39 PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE /58 PAL-BG/DK+SECAM-BG/DK,EAST-EURO

Sec. 2:

Standard Maintenance Mechanism Alignment Procedures Disassembly / Assembly of Mechanism Deck Exploded Views

For technical data reference is made to the Service Manual of 14PV374/01/07/39/58 & 14PV375/01/07/39/58 3103 785 22220. The present Manual states only the differences.

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used.

Published by BK 2003 Video Service Department Printed in Japan c

Copyright reserved Subject to modification GB 3103 785 22230

OPERATING CONTROLS AND FUNCTIONS

[ 14PV120/07, 14PV125/ ( 01, 07, 39, 58 ), 14PV225/ ( 01, 07, 39, 58 ), 14PV422/ ( 01, 07, 39, 58 ), 14PV425/07 ]

1-4-3 T6410IB

1-4-4 T6410IB

[

14PV120/07, 14PV125/ (01, 07, 39, 58), 14PV225/ (01, 07, 39, 58),

14PV422/ ( 01, 07, 39, 58 ), 14PV425/07 ]

Servo/System Control Block Diagram

(DECK ASSEMBLY)

AC HEAD ASSEMBLY

CL402

CONTROL HEAD

CYLINDER ASSEMBLY

PG SENSOR

DRUM MOTOR

M

LOADING MOTOR

M

2CTL(+) 1CTL(-)

MAIN CBA

Q202 Q205Q201

ST-SENS.

SENSOR CBA (ST-SENSOR)

CAPSTAN MOTOR

NOTE FOR 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.)

END-SENS.

SENSOR CBA (END-SENSOR)

M

C-CONT

D-PFG

BLOCK DIAGRAMS

TIMER+5V

CN201

1CM+12V 2P-ON+5V(3) 3C-FG

4C-F/R

5 6FG-GND 7LD-CONT 8D-CONT

9 10M-GND 11AL+12V(1) 12VG

D201 S-LED

T-REEL

TEST POINT INFORMATION

AL+5V

RS201

WF3

CTL

SW212 LD-SW

Q204

RESET

CM+12V P-ON+5V(3)

AL+12V(1)

:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. :USED TO INDICATE A TEST POINT WITH NO TEST PIN. :USED TO INDICATE A TEST POINT WITH A TEST PIN.

REMOTE SENSOR

TP001

AL+5V

+33V

IC201

(SERVO/SYSTEM CONTROL)

KEY-1

REMOTE

14

CTL AMP-OUT

97 95

CTL(+) CTL(-)

94

LD-SW9

10

ST-SENS.

4

END-SENS. T-REEL

80

34

RESET

C-FG

87

C-F/R

78

C-CONT

76

81

LD-CONT

77

D-CONT

90

D-PFG

KEY-2

REC LED

P-ON-H

P-DOWN-L

I2C-OPEN

SP-MUTE

A-MUTE-H

EXT-L

SCART-H

SCART-MUTE

REC-SAFETY

D-REC-H

C-SYNC

DV-SYNC

V-ENV

C-ROTA

RF-SW

P, T, X

TRICK-H

SECAM-H

SCL

SDA

23

24

67 85

71

72

45

44 20

42 48 29

31

47

74 13

15 18

33 32

Comparison Chart of Models & Marks

Model Mark

14PV225/07 14PV225/01 14PV225/58 14PV225/39 14PV422/07

SW201 SW205

7

8

D202 REC

D204 STANDBY

SW211

REC SAFETY

6

KEY SWITCH

SW206 SW210

KEY SWITCH

AL+5V

P-ON-H

P-DOWN-L

IC202

6

SCL

5

SDA

7

CS

I2C-OPEN

SP-MUTE

A-MUTE-H

SCART-H

SCART-MUTE

D-REC-H

C-SYNC

DV-SYNC

V-ENV

C-ROTA

RF-SW

TRICK-H

SECAM-H

(MEMORY)

SCL SDA

SCL

SDA

EXT-L

SCL

SDA

14PV422/01 14PV422/58 14PV422/39 14PV125/07 14PV125/01 14PV125/58 14PV125/39

14PV125/39 14PV120/07 14PV425/07

FROM/TO POWER SUPPLY BLOCK

FROM/TO CHROMA BLOCK

FROM/TO AUDIO BLOCK

FROM/TO VIDEO BLOCK

M N O

P

Q

R S T U V

W

X Y Z

1-7-15 1-7-16 T6410BLS

Video Block Diagram

" " = SMD

MAIN CBA

TO CHROMA BLOCK

TU001

VIDEO OUT

24

NOTE FOR 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.)

C-VIDEO

IC401

(VIDEO/AUDIO SIGNAL PROCESS)

TEST POINT INFORMATION

:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. :USED TO INDICATE A TEST POINT WITH NO TEST PIN. :USED TO INDICATE A TEST POINT WITH A TEST PIN.

FROM /TO SERVO/SYSTEM CONTROL BLOCK

65

SDA SCL

REC-VIDEO SIGNAL PB-VIDEO SIGNAL MODE: SP/REC

69684643

7978

Comparison Chart of Models & Marks

Model Mark

14PV225/07 14PV225/01 14PV225/58 14PV225/39 14PV422/07 14PV422/01 14PV422/58 14PV422/39 14PV125/07 14PV125/01 14PV125/58 14PV125/3914PV125/39 14PV120/07 14PV425/07

M N O

P

Q

R S T U V

W

X Y Z

JK701 V-IN

JK703

V-IN

20

V-OUT

19

TO CHROMA BLOCK

BUFFER

Q703

TU1-VIDEO

VIDEO

Q705

BUFFER

WF5

TP003

V-OUT

Q401

BUFFER

WF4

48 52 54 56

61

63

TUNER1

SCART

PB/EE

TUNER

PB/EE

MUTE

LINE

SCART

LINE

MUTE

BYPASS

AGC

CHARA. INS.

1/2

FBC

PR

AGC VXO

58 59

Y. DELAY

LUMINANCE SIGNAL PROCESS

Y/C MIX

SERIAL

DECORDER

R

P

CCD 1H DELAY

Y

+

C

CHROMINANCE SIGNAL PROCESS

R P R P

2928 44

21

REC FM AGC

PB-H OUT

SP HEAD AMP

D-REC-H

RF-SW/C-ROTA

D-V-SYNC

V-ENV

C-SYNC

96 95 93 94

80

70 62

84 67

WF1

TP002

RF-SW

(DECK ASSEMBLY)

CL401

V(R)

1

V-COM

V(L)

2 3

D-REC-H

RF-SW

C-ROTA

D-V-SYNC

V-ENV

C-SYNC

TRICK-H

SECAM-H

IC471 (PAL/SECAM DECTECOTR)

CYLINDER ASSEMBLY

FROM/TO SERVO/SYSTEM CONTROL BLOCK

P, T, X

VIDEO (R) HEAD

VIDEO (L) HEAD

28

29 17 12

16 14

1

PAL/SECAM

2

DETECTOR

TP010

GND

X401

4.43MHz

WF2

TP008

C-PB

WF6

1-7-17 1-7-18 T6410BLV

Audio Block Diagram

NOTE FOR WIRE CONNECTORS:

1. PREFIX SYMBOL "CN" MEANS CONNECTOR. (CAN DISCONNECT AND RECONNECT.)

" " = SMD

2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER HOLES OF THE PCB. (WIRE IS SOLDERED DIRECTLY.)

TEST POINT INFORMATION

:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. :USED TO INDICATE A TEST POINT WITH NO TEST PIN. :USED TO INDICATE A TEST POINT WITH A TEST PIN.

PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC

TU001

AUDIO OUT

JK702 A-IN

A-IN

A-OUT

JK703

2

1

21

Q701

IC701 (SW)

1 2

5 3

13 12

SW CTL

1011 9

SCART-MUTE

15

4

14

SCART-H

EXT-L

FROM SERVO /SYSTEM CONTROL BLOCK

WF7

52 53

54

(VIDEO/AUDIO/CHROMA/DEFLECTION/IF)

IC301

TUNER1

LINE

AUDIO MUTE

+5V

ATT

50

IC401

(AUDIO SIGNAL PROCESS)

TUNER

13

LINE

17

PB-ON 5 6

EQ AMP

SP/LP-ON

MAIN CBA

IC151 (AMP)

7

WF9

7

OUTPUT

AMP

MUTE

5

98

1

SP-MUTE (FROM PIN 44 OF IC201)

INV

ATT

CN804 SP SP-GND 1

R

P

ALC DET

ALC

2

CL801

LINE AMP

JK151 HEADPHONE JACK

SP151 SPEAKER

12

MUTE

11

TP007 A-OUT

WF8

(DECK ASSEMBLY)

AUDIO HEAD

AUDIO ERASE HEAD

ACE HEAD ASSEMBLY

FULL ERASE HEAD

FE HEAD

REC-ON

71

A-MUTE-H

SDA SCL

FROM/TO SERVO/SYSTEM CONTROL BLOCK

CL402 3 A-PB/REC 4 A-COM 6 AE-H 5 FE-H

CL403 1 FE-H 2 FE-H-GND

Q854

Q855

BIAS OSC

Q856

Q853(PB=ON)

Q851

Q852(PB=ON)

1 2

SWITCHING D-REC-OFF

+5V

AUTO BIAS

3

100

REC AMP

SERIAL

AUDIO HD-SW

DECODER

CONTROL

16

68 69

1-7-19 1-7-20 T6410BLA

Chroma Block Diagram

NOTE FOR WIRE CONNECTORS:

1. PREFIX SYMBOL "CN" MEANS CONNECTOR. (CAN DISCONNECT AND RECONNECT.)

" " = SMD

M, N, O, P

IC901 (TELETEXT DECODER)

ADC/

DATA SLICER

DISPLAY

TIMING

I2C I/F

TELETEXT

DECODER

OSC/CLOCK GENERATOR

TEXT CBA

FROM/TO SERVO/SYSTEM CONTROL BLOCK

I2C-OPEN

23 37 36

50 49

35 32 33 34

41 42

(NO CONNECTION)

CN303 is used for adjustment at factory

2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER HOLES OF THE PCB. (WIRE IS SOLDERED DIRECTLY.)

X901

12MHz OSC

SCL SDA

CN901 CN751

5 5Y-SW-OUT 1 1V-SYNC 2 2H-SYNC 4 4SDA 3 3SCL

CN752CN902

2 2OSD-BLK 4 4OSD-B 6 6OSD-G 3 3OSD-R

CN303

INT.MONITOR

I2C-OPEN 2

SDA 4 SCL 5

1

TEST POINT INFORMATION

:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. :USED TO INDICATE A TEST POINT WITH NO TEST PIN. :USED TO INDICATE A TEST POINT WITH A TEST PIN.

Q706

Q702

+5V

Q711

Q704

IC301

40

10 11

43

REC VIDEO SIGNAL PB VIDEO SIGNAL

(VIDEO/AUDIO/CHROMA/DEFLECTION/IF)

SERIAL I/F

INTELLIGENT MONITORING

SYNC SEPARATION

CHROMA TRAP

CHROMA BPF

LINE/PB

TUNER

LINE/PB

TUNER

CLOCK CONTROL CIRCUIT

Mode : SP/REC

MAIN CBA

34 36

X301

4.43MHz

32

Comparison Chart of Models & Marks

Model Mark

14PV225/07 14PV225/01 14PV225/58 14PV225/39 14PV422/07 14PV422/01 14PV422/58 14PV422/39 14PV125/07 14PV125/01 14PV125/58 14PV125/39

14PV125/39 14PV120/07 14PV425/07

VIDEO TU1-VIDEO

FROM VIDEO BLOCK

M N O

P

Q

R S T U V

W

X Y Z

SLOW-SW

RAPID-SW

FROM VIDEO BLOCK

OSD-B

OSD-G

OSD-R

C-VIDEO

JK703

8

16

7

11

15

IC201

(SYSTEM CONTROL/OSD)

56

C-VIDEO

TEXT-L OSD-R OSD-G

OSD-B

OSD-BLK

SLOW-SW-IN

RGB CONT

RAPID-SW-IN

WF18

V-SYNC

WF17

H-SYNC

82 64 63 62 60

68 61 65 59 58

IC703 (SW)

5 3

2 1

12 13

Q710

SW CTL

109 11

15

14

+5V

LUMA SIGNAL

4

V-SYNC PROCESS CIRCUIT

H-SYNC PROCESS CIRCUIT

PROCESS CIRCUIT

PAL DECODER

BASE BAND

SECAM DECODER

1H DELAY LINE

17 21

CL301A

27 20 28

OSD MIX/RBG MATRIX/ BLANKING

16 15 14

BLUE2 GREEN1 RED

3

TO CRT/H.V. BLOCK CL301B

30

WF10

13 12

WF11

6 7

31

INV

CL302A FBP3 H-DRIVE2 ACL6 V-RAMP-FB5 V-DRIVE4

FROM/TO CRT/H.V. BLOCK CL302B

T6410BLC1-7-21 1-7-22

CRT/H.V. Block Diagram

NOTE FOR WIRE CONNECTORS:

1. PREFIX SYMBOL "CN" MEANS CONNECTOR. (CAN DISCONNECT AND RECONNECT.)

" " = SMD

2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER HOLES OF THE PCB. (WIRE IS SOLDERED DIRECTLY.)

TEST POINT INFORMATION

:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB. :USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE. :USED TO INDICATE A TEST POINT WITH NO TEST PIN. :USED TO INDICATE A TEST POINT WITH A TEST PIN.

REC VIDEO SIGNAL PB VIDEO SIGNAL

Mode : SP/REC

FROM POWER SUPPLY BLOCK

3 FROM/TO CHROMA BLOCK CL302A

3

6

5

4

H.V./POWER SUPPLY CBA

+B

DEF+B

JUNCTION-B CBA

CN302CL302B

3 3FBP 2 2H-DRIVE 6 6ACL 5 5V-RAMP-FB 4 4V-DRIVE

CN552

Q533

H.DRIVE

WF12

Q551

H.OUTPUT

T552

1

5

3

4

T551 F.B.T.

10

IC551 (V-DEFLECTION CONTROL)

THERMAL

7

AMP

1

6

FOCUS VR

HV

F

S

11

8

7

9

6

SCREEN VR

PROTECTION

PUMP UP

VCC

2

3

ANODE

FOCUS SCREEN

HEATER 11 P-ON+160V 33

5

CL501BCL501A

WF13

CN551

L551 DEFLECTION-YOKE

5

4

3

1

VDRIVE

HDRIVE

ANODE

FROM CHROMA BLOCK CL301A

CN301CL301B 2 4 3

JUNCTION-C CBA

2 2RED 4 4GREEN 3 3BLUE

CN502

Q501

RED AMP

CRT CBA

Q502

GREEN AMP

JK501

FOCUS

WF15WF14

BLUE AMP

Q503

WF16

CN501

1-7-241-7-23

SCREEN GND

R G

B

HEATER

GND

T6410BLCRT

V501 CRT

Power Supply Block Diagram

W601

DG601 DEGAUSSING COIL

CAUTION !

Fixed voltage 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.

SW601

POWER

CN601

F601 T4A/250V

PS602

L601,L602

LINE FILTER

D601 - D604

BRIDGE RECTIFIER

HOT COLD

T601

6

4

14

13

11

12

CAUTION

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE T4A/250V FUSE.

TP503

+B

TP504

GND

+B

TO CRT/H.V. BLOCK

DEF+B

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

Q206

P-DOWN-L (TO PIN85 OF IC201)

Q602

SWITCHING

Q603

LIMITER

2

1

4 1

3 2

IC601

ERROR VOLTAGE DET

10

9

8

Q604

FEED BACK

Q608

VR601

+B ADJ.

Q606Q605

+5V REG.

+8V REG.

Q607

CN602

AL+33V11 AL+9V8 AL+12V(2)7 AL+12V(1)3

4

P-DOWN-L AL+5V

5

12

P-ON+8V

6

P-ON-L

CL603BCN603

11

8 7 3 4 5

12

6

JUNCTION-A CBA

11

12

8 7 3 4 5

6

CL603A

11

8 7 3 4 5

12

6

+5V REG.

IC301

+5.7V REG.

Q682

IC681

Q684

Q686

CM+12V

AL+33V AL+9V

AL+12V(2) AL+12V(1) TIMER+5V AL+5V P-ON+8V P-ON-H

(FROM PIN67 OF IC201)

P-ON+5V(2)

P-ON+5V(3)

P-ON+5V(1)

P-ON-ON

3955

1-7-25

H.V./POWER SUPPLY CBA

1-7-26

MAIN CBA

T6410BLP

[14PV120/07,14PV125/(01,07,39,57),14PV225/(01,07,39,57),14PV422/ (01,07,39,57),14PV425/07 ]

Main 1/5 Schematic Diagram Parts Location Guide

Ref No. Position Ref No. Position Ref No. Position Ref No. Position

CAPACITORS

C203

C205

C207

C208

C209

C210

C211

C212

C213

C214

C217

C218

C221

C222

C223

C224

C225

C226

C227

C228

C229

C230

C231

C233

C234

C235

C236

C237

C238

C239

C240

C241

C242

C243

C244

C245

C248 C253 B-2 R216 A-4 R264 A-4 RS201 B-1

C254

C255 C256 C-1 R219 B-3 R267 E-1

B-3

B-1

C-1

B-1

C-1

D-2

D-3

E-3 RESISTORS

D-4

C-4

D-4

C-4

B-1

C-4

CONNECTOR

CN201

DIODES

D201

D202

D204

D205

D206

D210

D211

D212

D213

D214

ICS

IC201

IC202

COIL

L201

TRANSISTORS

Q204

Q205

Q206

R201

R202

R203

R204

R205

R206

R207

R208

R209

R210

R211

R212

R213

R214

R215

R217

R218

F-5

B-3

B-2

B-1

D-3

D-2

A-4

C-3

D-1

D-2

B-1

D-4

C-4

B-4

B-3

B-4

B-3

B-4

A-4

B-4

A-4

B-3

RESISTORS RESISTORS

R220

R221

R222

R223

R224

R226

R227

R228

R229

R230

R231

R232

R233

R234

R235

R236

R237

R238

R239

R240

R241

R242

R243

R244

R248

R249

R250

R254

R255

R256

R257

R258

R259

R260

R261

R262

R263

R265

R266

B-3

B-2

B-1

C-1

D-2

D-3

C-4

B-3

B-4

A-4

D-1

R268

R269

R270

R271

R272

R273

R274

R275

R276

R277

R278

R279

R280

R281

R282

R287

R288

R289

SWITCH ES

SW201

SW202

SW203

SW204

SW205

SW206

SW207

SW208

SW209

SW210

SW211

SW212

TEST POINT

TP001

CRYSTAL OSCILATORS

X201

X202

MISCELLANEOU S

E-3

B-1

B-2

B-3

B-2

D-2

C-1

D-2

B-1

E-1

B-4

A-4

B-4

A-4

B-1

A-4

C-4

C-1

1-8-43

Main 1/5 Schematic Diagram

Comparison Chart of

MODEL MARK

14PV225/07 M 14PV225/01 N 14PV225/58 O 14PV225/39 P 14PV422/07 Q 14PV422/01 R 14PV422/58 S 14PV422/39 T 14PV125/07 U 14PV125/01 V 14PV125/58 W 14PV125/39 X 14PV120/07 Y 14PV425/07 Z

“ “ = SMD

Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below:

1 2 3

5.0

THE SAME VOLTAGE FOR BOTH PLAY & REC MODES.

5.0

~

(2.5)

INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE.

PLAY MODE REC MODE

Models and Marks

1-8-44 1-8-45

T6410SCM1

Main 2/5 Schematic Diagram

“ “ = SMD

Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below:

1 2 3

5.0

THE SAME VOLTAGE FOR BOTH PLAY & REC MODES.

5.0

~

(2.5)

INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE.

PLAY MODE REC MODE

1-8-46

1-8-47

T6410SCM2

Main 2/5 Schematic Diagram Parts Location Guide

Ref No. Position Ref No. Position Ref No. Position Ref No. Position

CAPACITORS

C401

C402

C403

C404

C405

C406

C407

C408

C409

C410

C411

C412

C413

C414

C415

C416

C417

C418

C419

C420

C421

C424

C425

C426

C427

C430

C431

C432

C433

C434

C435 C436 H-4 D402 H-4 R422 K-4 TP010 K-1

C438

C440

C441 C442 H-3 L401 K-3 R426 I-4

J-1

J-2

J-1

J-2

J-1

K-2

K-3

K-4

J-4

K-4

J-4

H-4

J-4 CL401 G-3

J-4 CL402 G-1

J-4

I-4

H-4

C443

C444

C445

C452

C851

C855

C856

C857

C858

C859

C860

C861

C862

C863

C864

C865

C866

C867

C868

C869

C871

C872

C874

C875

C876

CONNECTORS

CL403

DIODES

D401

IC4 01

COILS

IC

H-3

H-2

J-4

H-1

G-1

H-1

H-2

H-1

I-1

I-2

I-1

J-1

I-1

J-1

G-1

K-3

H-2

L402

L403

L852

L854

TRANSISTORS

Q401

Q851

Q852

Q853

Q854

Q855

Q856

Q857

RESISTORS

R401

R402

R405

R406

R407

R408

R409

R410

R411

R412

R413

R414

R415

R416

R417

R418

R420

R423

R424

R425

H-3

H-4

H-1

J-4

H-1

G-1

H-1

H-3

J-1

K-2

K-3

K-4

J-4

I-4

H-4

H-4 TP002 I-4

H-4

H-3

K-4

H-4

I-4

RESISTORSCAPACITORS COILS

R851

R852

R853

R854

R856

R857

R858

R859

R860

R861

R862

R863

R864

R865

R866

R867

R869

R870

R871

R874

R876

R877

R878

R879

CRYSTAL OSCILATOR

X401

TEST POINTS

TP00 3

TP00 7

TP00 8

H-1

G-1

H-1

I-1

H-1

I-1

J-2

I-1

H-2

J-2

K-4

I-1

J-1

1-8-48

Main 3/5 Schematic Diagram Parts Location Guide

Ref No. Position Ref No. Position Ref No. Position

CAPACITORS

C001

C002

C006

C007

C008

C009

C012

C151

C152

C154

C155

C156

C157

C160

C301

C302

C303

C304

C305

C307

C308

C309

C310

C311

C312

C313

C314

C315

C316

C317

C318

C319

C320

C321

C322

C323

C324

C325

C326

C327

C328 C330 N-2 R153 P-4 TP006 R-4

C331 C332 N-3 R155 N-4

R-4

Q-4

P-4

Q-3

R-3

Q-4

O-4

N-4

O-4

P-4

N-1

O-3

P-2

P-3

O-3

P-3

O-3

N-3

N-2

CAPACITORS RESISTORS

IC

N-2

P-3

M-3

P-1

N-2

M-3

N-3

R-1

M-4

M-3

M-4

O-4

P-1

P-3

P-2

O-4

N-1

M-4

Q-4

N-4

P-2

P-3

N-1

O-4

P-3

M-4

Q-4

P-4

R156

R301

R302

R303

R304

R305

R306

R307

R308

R309

R310

R311

R312

R313

R314

R315

R316

R317

R318

R320

R321

R322

R323

R324

R325

R326

R327

R328

R332

R333

R334

R335

R336

R339

R340

CRYSTAL OSCILATOR

X301 P-3

MISCELLANEOU S

JK151

TU00 1 R-4

TEST POINTS

C333

C334

C336

C338

C339

C340

C341

C344

C350

CONNECTORS

CL301A

CL302A

CN303

CN804

DIODES

D151

D152

D302

D303

D304

D305

D306

IC151

IC301

COILS

J418F3

L001

L151

L152

L302

L303

L304

L305

RESISTORS

R003

R004

R005

R006

R151

R152

R154

N-4

N-1

O-1

P-1

P-3

O-1

P-2

P-3

O-3

N-3

N-2

M-2

N-2

M-3

N-3

O-1

M-4

1-8-49

Main 3/5 Schematic Diagram

“ “ = SMD

Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below:

1 2 3

5.0

THE SAME VOLTAGE FOR BOTH PLAY & REC MODES.

5.0

~

(2.5)

INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE.

PLAY MODE REC MODE

1-8-50 1-8-51

T6410SCM3

Main 4/5 Schematic Diagram

Ref. No.

IC602

Ref. No.

Q682

Q684

Q685

Q686

03.10

0.1 3.1 0

00.60

123

3.2 0 1.9

07.90

ECB

Comparison Chart of

MODEL MARK

14PV225/07 M 14PV225/01 N 14PV225/58 O 14PV225/39 P 14PV422/07 Q 14PV422/01 R 14PV422/58 S 14PV422/39 T 14PV125/07 U 14PV125/01 V 14PV125/58 W 14PV125/39 X 14PV120/07 Y 14PV425/07 Z

“ “ = SMD

Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below:

1 2 3

5.0

THE SAME VOLTAGE FOR BOTH PLAY & REC MODES.

5.0

~

(2.5)

INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE.

PLAY MODE REC MODE

VOLTAGE CHART (Power off mode)

Models and Marks

1-8-52

1-8-53

T6410SCM4

Main 4/5 Schematic Diagram Parts Location Guide

Ref No. Position Ref No. Position

CAPACITORS

C471 C472 C473 C474 C475 C476 C478 C479 C480 C481 C483 C484 C485 C486 C681 C682 C683 C684 C687 C688 C689 C691 C692 C694

CONNECTOR

CL603A

DIODES

D471 D682 D686 D687 U-2 R698 W-1

T-3 T-3 T-3

T-3 U-3 U-3 U-3 U-4 U-4 U-4 U-3

T-4

T-1 U-2

T-2

S-2 U-1

T-1 U-2 U-2

W-2

S-2

T-3

T-1 U-3

DIODES

D688 D690 D691 D693 D694

ICS

IC471 IC681

COILS

L681 L682

TRANSISTORS

Q682 Q684 Q685 Q686

RESISTORS

R471 R681 R683 R684 R685 R686 R690 R691 R692 R693 R694 R696 R697

U-2 U-2 U-2

W-1

T-2

T-3 T-2

T-1 T-2

T-1 S-2 U-2 U-1

T-3 S-1 T-2 U-1 T-1 T-1 T-2 S-2 U-2 T-2 T-2 T-1

W-1

1-8-54

Main 5/5 Schematic Diagram Parts Location Guide

Ref No. Position Ref No. Position

RESISTORSCAPACITORS

ICS

Y-1

BB-2 CC-4 CC-4

AA-4

BB-4

BB-4 CC-4 CC-3 CC-3 CC-3

Z-1 BB-4 BB-1 BB-3 AA-3

Y-4

Y-2

CC-4 CC-3

AA-3

Z-1 BB-4

CC-3

CC-2

AA-2

CC-3 CC-3

BB-3

CC-4 CC-3

BB-4 BB-3 BB-4 AA-2 AA-2 BB-2 BB-3 BB-4

Y-1

R705 R707 R709 R710 R711 R712 R714 R723 R724 R725 R726 R727 R728 R729 R730 R731 R732 R733 R734 R735 R736 R737 R738 R739 R740 R741 R742 R743 R744 R745 R746 R747 R748 R749 R750 R751 R752 R753 R754 R755 R756 R757

TEST POINTS

TP009

MISCELLANEOUS

JK701 JK702

C701 C703 C705 C706 C707 C708 C709 C710 C711 C713 C714 C715 C716 C719 C723 C724

CONNECTOR

CN751 CN752

DIODES

D706 D711 D712 D713 D715 D716

IC701 IC703

COILS

L701 L702

TRANSISTORS

Q70 1 Q70 2 Q70 3 Q70 4 Q70 5 Q70 6 Q70 7 Q70 8 Q70 9 Q71 0 Q71 1

RESISTORS

R701 R702 R703 CC-4 JK703 CC-4 R704 CC-4

BB-2 AA-4 CC-4 BB-4 AA-3 CC-4 CC-4 CC-4 CC-4 CC-4 CC-4 CC-3 BB-4 BB-4 BB-4 CC-3 CC-3 CC-3 CC-3 CC-3 CC-3 CC-3 BB-2 CC-2 AA-2

Z-1 AA-2 AA-2 AA-2 AA-2 AA-2 AA-2 AA-2 CC-2

Y-1

Y-2 BB-3

Y-2 BB-3 AA-3 BB-4 BB-4

BB-3

Y-1

1-8-55

Main 5/5 Schematic Diagram

“ “ = SMD

Voltage indications for PLAY and REC modes on the Schematic Diagrams are as shown below:

1 2 3

5.0

THE SAME VOLTAGE FOR BOTH PLAY & REC MODES.

5.0

~

(2.5)

INDICATES THAT THE VOLTAGE IS NOT CONSISTENT HERE.

PLAY MODE REC MODE

1-8-56 1-8-57

T6410SCM5