Sony XTL-750W Schematic

XTL-750W

SERVICE MANUAL

Tuner unit :
XT-992V (US model)
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

US Model

Hong Kong Model

Monitor : XVM-750W

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 –

SECTION 4

DIAGRAMS

4-1. BLOCK DIAGRAM — MONITOR SECTION —

XTL-750W

TV

TUNER

UNIT

(XT-991V/992V)

AUDIO
(MAIN)

AUDIO

(SUB)

SIRCS

BRIGHT

R IN

G IN

B IN

C. SYNC

POWER SW

WIDE MODE1

(PAL/NTSC)

BL OFF/ON

CN1

3

D301

2

D302

10

5

15

14

13

12

S1

8

16

6

+B

9

04

POWER

F901

BL
CONTROL
Q801, 802

D701
DIMMER
SENSOR

AUDIO POWER AMP IC301

7
8
5
6

AUDIO POWER AMP IC303

7
8
5
6

42

41

40

36

34

F601

L601

DIMMER DISCRIMINATOR IC701

21

B+ (AMP)

B+ (AMP)

INT/
EXT
SW

SYNC

SEP

VIDEO INTERFACE, LED DRIVER

+B

REG

1 2

IC302

B+

SWITCH

Q608

B+

ON/OFF

Q606,607

BL B+

ON/OFF

Q602

57

S701

DIMMER

AUTO

HIGH

LOW

1

3

1

3

26

L602

IC201

Q105

S105
SELECT

B+ (AMP)

REG

Q604

RV213

GAMMA2

GAMMA

BGP
GEN

L505F501

CN302

2

1

CN301

2

1

RV212

GAMMA0

27

AMP

12

BL

DRIVE

Q601

29

BGP

35 39 33 32 37

WIDE MODE SELECT

1CK

RV601

INVERTER

VOLTAGE

SWITCH

Q611

COMPARATOR IC601

7

MAIN/L

SPEAKER

SUB/R

SPEAKER

INV

IC103

1CLR 2CLR

10 13

SP1

SP2

RV201

BRIGHT

INVERTER
Q609, 610

6
5

31

1Q

2Q

3

7

BRIGHT

2

6

DC-DC CONVERTER

ERROR AMP

COMP

RV207
R SUB

IC401

T601

T602

30

AMP

RV209
B SUB

BRIGHT

42

INV IC204

COMP

ERROR AMP

28

10

14

MIX/

BUFFER

Q102, 103

RV208

RGB
AMP

CONVERTER

19

21

24

38

DC-DC

Q502-504

RV401

5V

X101

480kHz

AMP
Q101

V COM AMP

IC203

57

RV210

V COM

AMP

DC-DC

CONVERTER

TRANSFOMER

T501

KEY IN MATRIX

IC102

OSC 2

14

OSC 1

15

13

OUT

V COM

BIAS

Q207-210

D502

D503

D504

D505

D506

S6

S3

S0

S2

K0
K1
K2

D110

CN101

3 SIRCS

5V

11

10

7

9

3
4
5

B+ (5V)

RV211

V COM

DC

L501

B+ (13V)

L502

B+ (7.5V)

L503

B+ (5V)

L504

B- (-5V)

L513

B- (-16V)

S101 NAVI

S102 TV/VIDEO

S103 SEARCH

S104 SEARCH

(+)

S107 VOL

(–)

S108 VOL

BUFFER

Q603, 605

(+)

(–)

PAL/NTSC
CONTROL

B+ (5V)

+B

Q104

L512

L510

L511

2

2

• Signal path
: TV and External Video (AUDIO)
: NAVI (AUDIO)
: VIDEO

CN8

VR

7

VG

8

6

VB

COM

12

NTP

13

FRPT

2

FRPV

5

VCS

24

SYN

3

HSY

1

22

MODW

MODN

23

VGH

4

10

VSH

13

NTP

15

HRV

16

VRV

17

CLKC

21

MODS

VGL

11

PWM

18

CN601

1

HV

GND

2

CN602

HV

1

GND

2

D102

POWER

1

LIQUID
CRYSTAL
DISPLAY

REMOTE

CONTROL

SENSOR

IC101

LCD1

BACK
LIGHT
UNIT1

BACK
LIGHT
UNIT2

– 15 – – 16 –

XTL-750W

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

NAVI IN

INPUT 1

INPUT 2

TO

AUDIO

SECTION

J5-1

VIDEO

J6-1

VIDEO

04

J10-1

VIDEO

CN2 (1/2)

SONY NAVI

(NVX)

AUX(V)

SIRCS

BEEP

TO

AUDIO

SECTION

VBS

R

G

B

VIDEO

12

15

14

13

10

V2
V1

7

2

3.58MHz

SIMUL

US
MODEL

2

1

3 7 2

5

SYNC GENERATOR

IC31

6

X3

XT

7

XT

• Signal path
: VIDEO
: AUDIO

• Abbreviation
CN : Hong Kong model

VIDEO INPUT SELECTOR

2

1

4

SWITCH

C.

3

SYNC

RESET

1

US MODEL

IC30

CN MODEL

VIDEO

IC19

BUF
Q90

7

BUFFER

5

3

1

13

Q78

VIDEO SWITCH

IC18 (1/2)

9 10 11

SIRCS

4 1

CONTROL

IC23

11

IC21 (2/3)

RGB

9 8

CONTROL
IC21 (3/3)

X4 3.58MHz

RELAY
DRIVE

Q128

RGB

DECODER

FO

BUF

Q103

SYSTEM CONTROL

V SYNC

59

H SYNC

58

H

13

V. MUTE

43

VD/RGB

39

SIMUL

38

RL1

NT/PAL

SWITCH

Q129

6

DL2

VR4
RGB

DECODER

INPUT
LEVEL

SYNC

SEP
IC17

7
8

4

12

BUF

SIMULATION

BUFFER

Q53

COMP

BUF
Q60

BUF
Q42

14

Q40, 41

12

13

24

23

32

IC12 (2/2)

DISPLAY OFF

X5 4.43MHz

CN MODEL

VR6

2 4 3 1

Y

SYNC
IN

C

RGB DECODER

IC24

COLHUE

NT/PAL

ON/OFF

BRT

SIRCS

BEEP

ACC

YS

APC

6162

46
52

51

45

64

11

37

X4

3.58MHz

VXO

CHROMA

AMP

30

IH
DL

DAT

Q101 Q100

POWER

ON/OFF

Q10

SIRCS

Q77

US MODEL

RGB

6 3

CONTROL
IC22 (2/2)

HUE

DEM

DL

AMP

1112 14

BEEP GEN

1 6

IC21 (1/3)

Y/C
MIX

CN MODEL

VR5

DL AMP

& DAT

C. SYNC

CN MODEL

VBS

R

G

B

AUDIO

J8-1

OUTPUT

VIDEO

MONITOR

OUT

VIDEO

BUF

Q91, 92

VIDEO

3 1

BUF
IC20

US MODEL

CN3

15

R

10

G

9

B

8

RGB SWITCH

IC25

5

3

12

13

2

1

CBA
910 11

4

14

15

RGB SWITCH

IC26

5 4

12

2

CBA
9 10 11

SYNC

BUF
Q61

R
BUF
Q64

G
BUF

14

Q63

B
BUF

15

Q62

TO

AUDIO

AUDIO

12

15

14

13

3

SECTION

16

NT/PAL

10

6

8

9

5

2

+B 12V

POWER
SW

PICTURE
SW

BRIGHT

SIRCS

BEEP

1
2

BEEP
CONTROL
IC22 (1/2)

+B

(S +12V)

7

– 17 – – 18 –