Sony XTL-750W Schematic

XTL-750W

SERVICE MANUAL

US Model

Hong Kong Model

Tuner unit :

XT-992V (US model) Monitor : XVM-750W

XT-991V (Hong Kong model)

• This set consists of the following units.

	US model	Hong Kong model
MONITOR	XVM-750W	XVM-750W
TUNER UNIT	XT-992V	XT-991V
REMOTE COMMANDER	RM-X63N	RM-X63E
ANTENNA	VCA-114	VCA-114

Monitor (XVM-750W)

System	Liquid crystal color display
Display	Transparent TN LCD panel
Drive system	TFT active matrix system
Picture size	7 in.; 155.52 × 87.75 mm,
	178.57 mm
	(w × h, diagonally)
Picture segment	336,960 (w 1440 × h 234)
Speaker type	35 × 20 mm dynamic speaker × 2
Power requirements
	12 V DC car battery
	(negative ground)
Current drain	Approx. 1.0 A
Dimensions	215 × 126.5 × 34 mm (w × h × d)
Operating temperature
	5˚C ~ +45˚C
Mass	Approx. 650 g

TV tuner unit (XT-992V: US, XT-991V: Hong Kong)

Television system

Hong Kong:

CCIR I,D,K system US:

NTSC Color system Hong Kong:

TV: PAL

Video: PAL, NTSC US:

TV: NTSC Video: NTSC

SPECIFICATIONS

Channel converge

VHF: 1 CH ~ 12 CH (Hong Kong) 2 CH ~ 13 CH (US)

UHF: 14 CH ~ 69 CH (US)

21 CH ~ 69 CH (Hong Kong)

Power requirements

12 V DC car battery (negative ground)

Current drain Approx. 0.5 A Output terminals

Video output: RCA pin 1 Vp-p, 75 ohm

Audio output: RCA pin –10 dBs, 10 kohm

Monitor output: Square 16 -pin (exclusive)

– Continued on next page –

MOBILE COLOR TV

MICROFILM

– 1 –

XTL-750W

SECTION 4

DIAGRAMS

4-1. BLOCK DIAGRAM — MONITOR SECTION —

CN1

3

AUDIO (MAIN)

	2
	AUDIO
	(SUB)
	10
	SIRCS
	5
	BRIGHT
	15
	R IN
	14
	G IN
	13
	B IN
	12
	C. SYNC
TV
TUNER
UNIT	8
(XT-991V/992V)
	POWER SW

16

WIDE MODE1 (PAL/NTSC)

6

+B

9

BL OFF/ON

04

AUDIO POWER AMP IC301

CN302

CN101

2

REMOTE

7

3

SIRCS

CONTROL

1

SP1

1

D301

8

SENSOR

5

1

MAIN/L

KEY IN MATRIX

IC101

SPEAKER

3

IC102

6

2

5V

B+ (AMP)

S6

11

S101

NAVI

B+ (5V)

AUDIO POWER AMP IC303

CN301

S102

TV/VIDEO

2

2

7

S3

10

S103

SEARCH (+)

+B

1

SP2

D102

8

S104

SEARCH (–)

D302

5

1

SUB/R

POWER

14

OSC 2

SPEAKER

3

6

X101

S0

7

480kHz

B+ (AMP)

MIX/

15

OSC 1

AMP

13

S2

9

S107

VOL (+)

• Signal path

BUFFER

OUT

Q101

S108

VOL (–)

Q102, 103

: TV and External Video (AUDIO)

RV207

RV209

K0

3

RV213

RV212

RV201

RV208

GAMMA2

GAMMA0

BRIGHT

R SUB

B SUB

K1

4

: NAVI (AUDIO)

RGB

BRIGHT

BRIGHT

K2

5

: VIDEO

AMP

26

27

29

31

30

28

B+ (5V)

D110

CN8

42

19

7

VR

INT/

8

VG

41

GAMMA

INV

21

EXT

AMP

AMP

6

VB

SW

40

24

V COM AMP

SYNC

IC203

V COM

12

COM

36

38

5

7

SEP

BIAS

BGP

Q207-210

34

BGP

PAL/NTSC

GEN

RV210

RV211

13

NTP

S1

CONTROL

35 39

33

32

37

V COM

V COM

POWER

Q104

VIDEO INTERFACE, LED DRIVER

AMP

DC

2

FRPT

IC201

5

FRPV

4

2

24

VCS

INV IC204

3

SYN

1

HSY

LIQUID

CRYSTAL

+B

Q105

WIDE MODE SELECT 1Q

2

22

MODW

DISPLAY

12

23

MODN

LCD1

1CK

IC103

2Q

6

1CLR

2CLR

D502

L501

L512

4

VGH

S105

DC-DC

10

13

B+ (13V)

SELECT

CONVERTER

D503

L502

10

VSH

TRANSFOMER

13

NTP

F901

T501

B+ (7.5V)

REG

15

HRV

1

2

B+ (AMP)

IC302

D504

L503

L510

16

VRV

B+ (5V)

17

CLKC

F501

L505

DC-DC CONVERTER

D505

L504

21

MODS

F601

L602

IC401

DC-DC

B- (-5V)

B+

CONVERTER

D506

L513

L511

SWITCH

11

VGL

Q502-504

B- (-16V)

Q608

ERROR AMP

L601

RV601

3

COMP

10

B+

INVERTER

ON/OFF

VOLTAGE

Q606,607

ERROR AMP

BUFFER

18

PWM

RV401

7

COMP

14

Q603, 605

5V

CN601

T601

1

HV

BL B+

BL

BACK

REG

SWITCH

INVERTER

ON/OFF

DRIVE

GND

LIGHT

Q604

Q611

Q609, 610

2

Q602

Q601

UNIT1

BL

CONTROL

COMPARATOR IC601

CN602

Q801, 802

DIMMER DISCRIMINATOR IC701

T602

2

1

5

7

6

1

HV

7

BACK

D701

S701

5

2

GND

LIGHT

DIMMER

DIMMER

UNIT2

SENSOR

AUTO

HIGH

LOW

– 15 –

– 16 –

XTL-750W

4-2. BLOCK DIAGRAM — TUNER UNIT (VIDEO) SECTION —

US MODEL

VIDEO INPUT SELECTOR

IC30

J10-1

2

VIDEO

7

1

NAVI IN

US

CN2 (1/2)

SONY NAVI

MODEL

CN MODEL

12

(NVX)

7

RGB

RGB

VBS

BUFFER

9

8

6

3

AUX(V)

Q78

CONTROL

CONTROL

IC21 (3/3)

IC22 (2/2)

R

15

14

G

CN MODEL

13

B

J8-1

10

VIDEO

SIRCS

OUTPUT

BUF

2

VIDEO

BEEP

Q91, 92

X4 3.58MHz

X4

RELAY

3.58MHz

X5 4.43MHz

DRIVE

3

VIDEO

1

V2

Q128

US MODEL

BUF

V1

IC20

RL1

NT/PAL

TO

US MODEL

2

4

SWITCH

RGB

CN MODEL

AUDIO

VIDEO

VIDEO SWITCH

Q129

VR6

DECODER

SECTION

SWITCH

IC18 (1/2)

FO

IC19

2

4

3

1

VIDEO

1

5

4

DL2

BUF

24

Y

CN3

3

Q103

SYNC

12

HUE

C. SYNC 15

J5-1

1

BUF

VBS

RGB SWITCH

RGB SWITCH

12

SYNC

Q61

INPUT 1

3

7

2

23

APC

VXO

IC25

IC26

VIDEO

IN

J6-1

5

4

5

4

R

15

R

INPUT 2

5

COMP

R

10

3

BUF

C

Y/C

Q64

VIDEO

CHROMA

G

14

32

DEM

9

BUF

ACC

AMP

MIX

B

Q60

VR4

8

12

G

14

RGB

14

12

14

G

BUF

SYNC GENERATOR

13

DECODER

DL

13

Q63

INPUT

IC31

LEVEL

AMP

9

10

11

RGB DECODER

2

B

13

IC24

15

2

15

BUF

B

6

XT

30

12

11

14

1

X3

BUF

Q62

C.

3

CN MODEL

3.58MHz

7

SYNC

Q90

C

B

A

C

B

A

XT

IH

9

10 11

9

10 11

SYSTEM CONTROL

DL

VR5

IC12 (2/2)

RESET

DL AMP

1

DAT

& DAT

TO

62 HUE

COL 61

MONITOR

3

AUDIO

AUDIO

AUDIO

OUT

Q101

Q100

SECTION

16

NT/PAL

SYNC

BUF

6

7

59 V SYNC

Q42

SEP

8

58 H SYNC

6

IC17

+B

+B 12V

BUF

(S +12V)

13 H

NT/PAL 46

Q40, 41

YS 52

43 V. MUTE

POWER

8

POWER

39 VD/RGB

ON/OFF 51

ON/OFF

SW

TO

Q10

12

9

PICTURE

DISPLAY OFF 45

AUDIO

SIMUL

11

SW

SECTION

IC21 (2/3) 13

SIMULATION

BRT 64

5

BRIGHT

38 SIMUL

• Signal path

BUFFER

SIRCS

10

Q53

SIRCS 11

SIRCS

: VIDEO

Q77

BEEP GEN

BEEP

2

: AUDIO

BEEP 37

1

IC21 (1/3) 6

1

CONTROL

7

BEEP

SIRCS

2

IC22 (1/2)

04

• Abbreviation

4 CONTROL 1

IC23

CN : Hong Kong model

– 17 –

– 18 –