Sony XTL-75V Manual de usuario

SERVICE MANUAL

• XTL-75V is composed of the following models.

• The TV Tuner unit (XT-991V) attached to the XTL-75V is same model as XTL-750W.

For further description, see the Service Manual of XTL-750W (9-925-662-[][]).

MOBILE COLOR TV

Chinese Model

SPECIFICATIONS

XTL-75V

TV Monitor XVM-75V

TV Tuner unit XT-991V

Wireless remote commander RM-X63E

TV Tuner unit: XT-991V

TV Monitor: XVM-75V

Wireless remote commander:

RM-X63E

TV Monitor (XVM-75V)

System Liquid crystal color display

Display Transparent TN LCD panel

Drive system TFT active matrix system

Picture size 6.5 in.; 142.6 ×80.8 mm,

165 mm

(w ×h, diagonally)

Picture segment336,960 (w 1440 ×h 234)

Speaker type 35 ×20 mm dynamic speaker ×1

Power requirements

12 V DC car battery

(negative ground)

Current drain Approx. 1.0 A

Dimensions 178 ×50 ×180.7 mm (w ×h ×d)

Operating temperature

5˚C ~ +45˚C

Mass Approx. 2 kg

TVTuner unit (XT-991V)

Television system

CCIR I,D,K system

Color system TV: PAL

Video: PAL, NTSC

Channel converge

VHF:1 CH ~ 12 CH

UHF: 21 CH ~ 69 CH

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)

Input terminals Video input (2 system): RCA pin 1 Vp-p,

75 ohm

Audio input: RCA pin –10 dBs, 10 kohm

Antenna input: mini plug

Navigation input:Square 16 -pin

(exclusive)

RCA pin:

Video 1 Vp-p, 75 ohm

Audio (monaural)

–10 dBs, 10 kohm

Dimensions 202 ×30 × 140 mm (w ×h ×d)

Mass Approx. 750 g

Wireless remote commander (RM-X63E)

Power requirements

AA (R6) battery × 2

Operable rangeApprox. 3 m

Dimensions 62 ×25 ×115 mm (w ×h ×d)

Mass Approx. 100 g

(including batteries)

Supplied accessories

Wireless remote commander

RM-X63E (1)

Design and specifications are subject to change

without notice.

(XT-991V)

TABLE OF CONTENTS

1. SERVICING NOTES ............................................... 2

2. DISASSEMBLY ......................................................... 4

3. ASSEMBLY................................................................. 9

4. TEST MODE.............................................................. 10

5. ELECTRICAL ADJUSTMENTS......................... 11

6. DIAGRAMS

6-1. Block Diagram

– AUDIO/VIDEO/MODE CONTROL Section – .......... 15

6-2. Block Diagram

– SENSOR/MOTOR/POWER SUPPLY Section –........ 16

6-3. Note for Printed Wiring Boards

and Schematic Diagrams ................................................ 17

6-4. Printed Wiring Board – B Board – ................................ 18

6-5. Schematic Diagram – B Board – ................................... 19

6-6. Printed Wiring Board – A Board (SideA) –.................. 20

6-7. Printed Wiring Board – A Board (Side B) –.................. 21

6-8. Schematic Diagram – A Board (1/3) – .......................... 22

6-9. Schematic Diagram – A Board (2/3) – .......................... 23

6-10. Schematic Diagram – A Board (3/3) – .......................... 24

6-11. Printed Wiring Boards

– SENSOR/MOTOR Section –....................................... 25

6-12. Schematic Diagram – SENSOR/MOTOR Section – .... 25

6-13. Printed Wiring Board – G Board – ................................ 26

6-14. Schematic Diagram – G Board – ................................... 27

6-15. Printed Wiring Board – PANEL Board – ...................... 28

6-16. Schematic Diagram – PANEL Board – ......................... 29

6-17. IC Pin Function Description ........................................... 34

7. EXPLODED VIEWS................................................ 36

8. ELECTRICAL PARTS LIST ............................... 40

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

SECTION 1

SERVICING NOTES

PRECAUTION ON REPLACING THE B BOARD

The R999 necessary for this set is not mounted on the B board for

repair. Also, the R711 unnecessary for this set is mounted.

Therefore, when replacing the B board, add R999 and remove R711

by referring to the following.

– SCHEMATIC DIAGRAM –

R999 0

R711

– PRINTED BOARD –

Loaction:G-11

two screws

four screws three screws

screw

monitor gear (L)

ear (slide L)

slider knob (L)

front panel section

slider knob (R)

shaft

(stopper)

monitor

slider knob (R)

gear (slide R

)

monitor gear (R)

PRECAUTION ON HANDLING THE SET

During the manufacturing of this set, the slide gear phase has been

finely adjusted.

Therefore, never remove those screws shown in the figure when

making repairs.

HOW TO PULL UP THE MONITOR BY HANDS AT POWER OFF

1. Draw out the front panel fully in the direction of the arrow 1,

and remove the shaft (stopper) from the monitor.

2. Push the slider knob (L) and slider (R) in the direction of ar-

row 2.

(Meshing of gear (slide L) – monitor gear (L), and gear (slide

R) – monitor gear (R) can be disengaged)

3. Pull up the monitor in the direction of arrow 3.

SET

FRONT PANEL SECTION

(PAGE 4)

C BOARD

(PAGE 8)

MONITOR

(PAGE 8)

DC MOTOR (SMALL TYPE)

(ANGLE) (M11)

(PAGE 8)

COVER

(PAGE 6)

COVER

(PAGE 6)

HOW TO PULL UP THE MONITOR

(PAGE 6)

HOW TO PULL UP THE MONITOR

(PAGE 6)

B BOARD

(PAGE 5)

A BOARD

(PAGE 7)

D BOARD, DC MOTOR (SMALL TYPE)

(SLIDE) (M21)

(PAGE 7)

FRONT FRAME, CHASSIS (UPPER)

(PAGE 5)

FRONT PANEL SECTION

SECTION 2

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

3boss

2two screws

(M2 ×3)

5claw

4Remove the front panel section

in the direction of arrow A.2two screws

(M2 ×3)

3boss

6flat cable 26P

(CN701)

• This set can be disassembled in the order shown below.

Note: Be sure to read the SERVICE NOTES before starting repairs.

FRONT FRAME, CHASSIS (UPPER)

B BOARD

1screw

(B2.6 ×4)

4front frame

Note: Do not pull the front

frame by force,

or it gets damaged.

1screw

(B2.6 ×4)

5boss 1screw

(B2.6 ×4)

2car mount bracket

1screw

(B2.6 ×4)

1screw

(B2.6 ×4)

6chassis (upper)

1screw

(B2.6 ×4)

3five claws

1screw

(B2.6 ×4)

2car mount

bracket

5boss

1Pull the front panel ass’y.

2four screws

(B2.6 ×4)

2screw

(B2.6 ×4

)

4binding

band

5connection cords

(CN701, 702, 703)

6B board

3two flat cables (L) 26P

(CN705, 706)

Note: When removing the flat

cable (L) 26P, pull out

the front panel

but do not raise the B board

by force.

COVER

HOW TO PULL UP THE MONITOR

3After making sure the shaft (stopper)

has been removed from the monitor,

pull up the monitor in the direction of arrow C.

shaft (stopper)

2Push the slider knob (R)

in the direction of arrow B.

1Pull the monitor base ass’y

in the direction of arrow A.

2Push the slider knob (L)

in the direction of arrow B.

1two screws

(M2 ×3)

2Open this side, as there are screws

that fix the side plate.

1six screws

(M2 ×3)

3Remove the cover in the

direction of arrow A.

1two screws

(M2 ×3)

S102

Note: When removing or

mounting the cover,

take care not to allow the cover

to be stuck to the S102.

screw head

side plate

A BOARD

D BOARD, DC MOTOR (SMALL TYPE) (SLIDE) (M21)

2three connectors

(CN104, 105, 107)

1two flat cables (L) 26P

(CN101, 102)

3five screws

(M2 ×4)

4A board

1flat cable 26P

(CN109)

1flat cable 26P

(CN401)

2two connectors

(CN106, 108)

8two screws

(M2 ×3)

Note: When installing these screws

and DC motor, apply a drop

of screw lock G (1401B).

0bracket (monitor motor)

9DC motor (small type)

(slide) (M21)

1screw (M2 ×3)

2bracket (monitor stopper

)

5screw

(M2 ×3)

6D board

7motor gear (slide)

3screw

(M2 ×3)

4Remove the bracket

(monitor motor) in the

direction of the arrow.

Part Name Part No.

SCREW LOCK G 7-432-114-11

(1401B)

DC MOTOR (SMALL TYPE) (ANGLE) (M11)

C BOARD, MONITOR

5three screws

(M2 ×3)

6side plate

8Remove the monitor in the

direction of arrow B.

1flat cable 26P

(CN401)

7Push the slider knob (R)

in the direction of arrow A.

4C board

3screw (M2 ×3)

2connector

(CN11)

2four screws

(M2 ×3)

1connector

(CN108) 4two screws

(M2 ×3)

3motor gear (monitor)

6bracket

(monitor motor)

5DC motor (small type)

(angle) (M11)

Note: When installing these screw

and DC motor, apply a drop

of screw lock G (1401B).

Part Name Part No.

SCREW LOCK G 7-432-114-11

(1401B)

INSTALLATION OF FLAT CABLE (L) 26P

Note: Follow the assembly procedure in the numerical order given.

SECTION 3

ASSEMBLY

7two screws

(M2 ×3)

6FFC cover (2)

3B board

4four screws

(B2.6 ×4)

2two flat cables (L) 26P

(CN705, 706)

4screw

(B2.6 ×4)

B board

two flat cables (L) 26P

chassis (lower)

ass’y

Note: No slack is allowed.

filament tape 16 × 50

8Using a filament tape 16 × 50,

stick two flat cables (L) 26P

to the chassis bottom without a slack

as shown in the figfure.

base ass’y

1Pull the base ass’y

in the direction of arrow A.

0Pull the flat cable (L) 26P in the direction of arrow B,

and stick it to the sheet (FFC) with an adhesive tape.

DC motor (small type) (slide) (M21) B

adhesive tape

sheet (FFC)

qs screw (M2 ×3)

qa FFC cover (1)

0Pull the flat cable (L) 26P

in the direction of arrow C,

and stick it to the sheet (FFC)

with an adhesive tape.

adhesive tape

sheet (FFC)

9flat cable (L) 26P

(CN101)

9Let the flat cable (L) 26P through

under DC motor (small type) (slide) (M21)

as shown in the figure, and connect to

the connector (CN102).

SECTION 4

TEST MODE

Test mode setting

1. Press the [OPEN/CLOSE] button to place the set in open state.

2. Press the [V ADJ] button and [TV/VIDEO] button simulta-

neously.

3. A beep sounds and the test mode is activated.

Note: The test mode is active for several seconds only, and it returns to

normal state if no operation is performed during this time. When

the test mode is activated, perform the following operation imme-

diately.

Monitor position initializing

Return the position and angle at the time of monitor open state to

the initial position set in the factory.

1. Immediately after the Test mode is activated, press the

[SEARCH --] button and [TV/VIDEO] button. (A beep will

sound)

2. Press the RESET button, and the monitor is stored and the

monitor position is initialized. (Normal state will get back)

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