Sony XTL-W70 Service manual
XTL-W70
SERVICE MANUAL
Ver 1.0 2001. 07
Tuner unit : XT -992V Monitor : XVM-W71
This set consists of the following units.
•
US/Canadian model
MONITOR XVM-W71
TUNER UNIT XT-992V
REMOTE COMMANDER RM-X170
ANTENNA VCA-114
US Model
Canadian Model
Monitor
System Liquid crystal color display
Display Transparent TN LCD panel
Drive system TFT active matrix system
Picture size 154.1 × 87.0 mm, 177 mm
(6 1/8 × 3 1/2 in., 7 in.)
(w × h, diagonally)
Picture segment
336.960 (w 1440 × h 234)
Speaker type ø36 mm (ø1 7/16 in.)
dynamic speaker
Power requirements
12 V DC car battery
(negative earth)
Current drain Approx. 1.0 A
Dimensions 190 × 127.5 × 26.6 mm
(7 1/2 × 5 1/8 × 1 1/16 in.)
(w × h × d)
Operating temperature
+5˚C ~ +45˚C
(41˚F ~ 113˚F)
Mass Approx. 450 g (1 lb)
TV tuner unit
Television system
NTSC
Color system TV: NTSC
Video: NTSC
SPECIFICATIONS
Channel converge
VHF:2 CH ~ 13 CH
UHF:14 CH ~ 69 CH
Power requirements
12 V DC car battery
(negative earth)
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
9-873-250-01
2001G0400-1
© 2001. 7
Sony Corporation
e Vehicle Company
Shinagawa Tec Service Manual Production Group
1
XTL-W70
Input terminals Video input (2 system): RCA pin 1 Vp-p,
75 ohm
Audio input: RCA pin –10 dBs, 10 kohm
Antenna input (4 system): 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)
(8 × 1 3/16 × 5 5/8 in.)
(w × h × d)
Mass Approx. 750 g (1 lb. 11 oz.)
Wireless remote
Power requirements
AA (R6) battery × 2
Operable range Approx. 3 m (9.8 ft.)
Dimensions 60 × 19 × 166 mm
(2 3/8 × 3/4 × 6 5/8 in.)
(w × h × d)
Mass Approx. 125 g (4 oz.)
(including batteries)
TV antenna
Cord 5 m (16.4 ft.), 75 ohm
Supplied accessories
Wireless remote (1)
Power input cord (1)
Monitor cable (1)
TV antenna (1)
Parts for installation and
connections (1 set)
Mounting kit (1 set)
Design and specifications are subject to change
without notice.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
TABLE OF CONTENTS
1. GENERAL
Location of Controls............................................................... 3
Getting Started........................................................................ 3
W a tching a TV Programme .................................................... 4
Viewing the Wide Screen ....................................................... 4
Watching a Video.................................................................... 4
Listening to the TV/video Sound
with the Picture Off ................................................................ 5
Adjusting the Picture .............................................................. 5
Adjusting the Screen Brightness ............................................ 5
Using the Navigation System ................................................. 6
Listening to the TV/video Sound while Using
the Navigation System............................................................ 6
Connections ............................................................................ 7
2. DISASSEMBLY
2-1. Cabinet Assy, Monitor (Rear) ............................................ 8
2-2. Sw Board, Monitor Board .................................................. 8
3. ELECTRICAL ADJUSTMENTS
Monitor Section ...................................................................... 9
Tuner Unit Section ............................................................... 13
4. DIAGRAMS
4-1. Block Diagram –Monitor Section– .................................. 15
4-2. Block Diagram –Tuner Unit (Video) Section– ................ 16
4-3. Block Diagram –Tuner Unit (Audio) Section–................ 17
4-4. IC Pin Descriptions .......................................................... 18
4-5. Printed Wiring Board –Monitor Section– ........................ 20
4-6. Schematic Diagram –Monitor Section (1/2)– .................. 22
4-7. Schematic Diagram –Monitor Section (2/2)– .................. 23
4-8. Printed Wiring Board –Monitor Switch Section – ........... 24
4-9. Schematic Diagram –Monitor Switch Section–............... 25
4-10. Printed Wiring Board –Tuner Section– ............................ 26
4-11. Schematic Diagram –Tuner Section (1/3)– ...................... 28
4-12. Schematic Diagram –Tuner Section (2/3)–...................... 29
4-13. Schematic Diagram –Tuner Section (3/3)–...................... 30
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY P ARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
5. EXPLODED VIEWS
5-1. Monitor Section ............................................................... 35
5-2. Tuner Section ................................................................... 36
6. ELECTRICAL PARTS LIST ....................................... 37
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT .
NE REMPLACER CES COMPOSANTS QUE P AR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS P AR SONY.
2
SECTION 1
GENERAL
XTL-W70
This section is extracted
from instruction manual.
3
XTL-W70
4
XTL-W70
5
XTL-W70
6
XTL-W70
7
XTL-W70
)
d
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET ASSY, MONITOR (REAR)
4 bracket (w), stand
1 screws (2.6x5)
5 screws (M 2x5)
2 screws (2.6x5)
3 screws (2.6x5)
6 screws (M 2x5
9 cabinet assy, monitor (rear)
2-2. SW BOARD, MONITOR BOARD
7 Removal the solders
5 screws (M2x5)
3 sheet
claw
7 CN601
8 connector
4 screws (M2x5)
8 sheet (MAIN PC board)
9 MONITOR boar
2 CN104
6 CN501
S801
claws
1 SW board
8
C
SECTION 3
p
ELECTRICAL ADJUSTMENTS
XTL-W70
MONITOR SECTION
Equipment Used
The measuring equipment below are used for these electrical
adjustments:
• Oscilloscope
• NTSC pattern generator
• Regulated DC power supply
• Digital voltmeter
Connection of Equipment
Unless otherwise specified, the measuring equipment should be
connected as shown below:
INPUT (1)
(VIDEO)
NTSC pattern
generator
VIDEO OUT
Ω
)
(75
Parking
Setup for Adjustment
Set to the VISUAL STD mode.
The adjustment signal is a 5-step gray scale signal from a NTSC
pattern generator.
Input the gray scale signal into the tuner unit and connect an oscilloscope to TP9 on the MONITOR board. Check that the width
between the black and white levels of the gray scale signal is 0.74
Vp-p.
MONITOR OUT
Tuner unit
XT-992V
ACC cord
Monitor
XVM-W71
Regulated D
power supply
+
–
white
Inverter Voltage Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect a digital voltmeter to TP206 on the MONITOR board.
3. Adjust RV601 so that the reading on the digital voltmeter is
6.80 ± 0.04 V.
Adjustment Location: See page 12.
γ 2 Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect a digital voltmeter to TP519 on the MONITOR board.
3. Adjust RV405 so that the reading on the digital voltmeter is
2.48 ± 0.04 V.
Adjustment Location: See page 12.
RGB Gain Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect a digital voltmeter to TP517 on the MONITOR board.
3. Adjust RV407 so that the reading on the digital voltmeter is
1.89 ± 0.04 V.
Adjustment Location: See page 12.
γ 0 Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP518 on the MONITOR board.
3. Adjust RV406 so that the reading on the digital voltmeter is
1.74 ± 0.04 V.
Adjustment Location: See page 12.
Bright Adjustment (1)
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect a digital voltmeter to TP516 on the MONITOR board.
3. Adjust RV408 so that the reading on the digital voltmeter is
2.09 ± 0.04 V.
Adjustment Location: See page 12.
0.74Vp-
black
Setup to switch position:
DIMMER switch (S801) ...................................................... HIGH
5V Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect a digital voltmeter to TP22 on the MONITOR board.
3. Adjust RV201 so that the reading on the digital voltmeter is
5.27 ± 0.04 V.
Adjustment Location: See page 12.
VCOM Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP508 on the MONITOR board.
3. Adjust RV411 so that the reading on the digital voltmeter is
2.47 ± 0.04 V.
Adjustment Location: See page 12.
9
XTL-W70
Bright Adjustment (2)
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP405 on the MONITOR board.
3. Adjust RV408 so that the signal level in the 5th stage from the
top is the specified value A.
Specified value A: 1.90 ± 0.04 V
(Skip item 3 and start from item 4 when the value cannot be
completely adjusted.)
4. Adjust RV406 so that the signal level in the 1st stage from the
top is the specified value B.
Specified value B: 3.64 ± 0.02 V
5. Adjust RV407 so that the signal level in the 3rd stage fromthe
top is the specified value C.
Specified value C: 2.98 ± 0.02 V
6. Repeat items 3 to 5 and adjust the signal in the 5th, 1st and 3rd
stages.
1st
3rd
5th
A
B
C
B and R Level Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP405 on the MONITOR board.
3. Measure the black-to-black level.
4. Connect an oscilloscope to TP404 on the MONITOR board.
5. Adjust RV409 so that the black-to-black level A is the same as
the level measured in item 3.
6. Connect an oscilloscope to TP406 on the MONITOR board.
7. Adjust RV410 so that the black-to-black level is the same as the
level measured in item 3.
A
10
XTL-W70
V
VCOM Amplitude Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale screen on the monitor screen.
2. Connect an oscilloscope to TP401 on the MONITOR board.
3. Adjust RV411 so that the level A of the output waveform is
6.88 ± 0.02 Vp-p.
Adjustment Location: See page 12.
A
VCOM Bias Adjustment
Procedure:
1. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the gray scale on the monitor screen.
2. Connect an oscilloscope to TP401 on the MONITOR board.
3. Adjust RV412 so that the waveforms A and B meet the
specified value.
specified value A: 5.20 ± 0.04 V
B: -1.68 ± 0.04 V
Adjustment Location: See page 12.
Freerun Frequency Adjustment
Procedure:
1. Set the input signal with no signal.
2. Press the TV/VIDEO button (S106) to the VIDEO mode.
3. Connect a frequency counter to TP16 on the MONITOR board.
4. Adjust RV902 so that the reading on the frequency counter is
15.37 ± 0.02 kHz.
Adjustment Location: See page 12.
H CEN Adjustment
Procedure:
1. Input the mono scope signal from a NTSC pattern generator.
2. Press the TV/VIDEO button (S106) to the VIDEO mode,
display the mono scope on the monitor screen.
3. Adjust RV901 so that the mono scope is displayed in
symmetrical pattern on the monitor screen.
Adjustment Location: See page 12.
B
A
0
11
XTL-W70
Adjustment Location:
– MONITOR BOARD (SIDE A) –
RV410: B and R Level Adjustment
RV409: B and R Level Adjustment
RV405: GAMMA2 Adjustment
RV406: GAMMA0,Bright2 Adjustment
RV408: Bright1,2
Adjustment
RV902: Freerun
Frequency
Adjustment
RV901: H CEN Adjustment
– MONITOR BOARD (SIDE B) –
RV412: VCOM Bias Adjustment
RV411: VCOM,VCOM AMP Adjustment
RV601: Inverter Voltage Adjustment
TP517
TP516
TP519
TP518
TP22
RV407: RGB Gain,Bright2
Adjustment
RV201: 5V Adjustment
12
TP401
TP508
TP405
TP404
TP206
TP406
TP16
XTL-W70
2.5 Vp-p
0 V
TUNER UNIT SECTION
• Use the following equipment for the electrical adjustment.
Equipment
1 Monitor TV (XVM-W71, etc.)
2 Spectrum analyzer
3 TV signal generator
4 Digital voltmeter
5 Oscilloscope
6 Audio analyzer
7 DC power supply
8 Frequency counter
Equipment Connections
Connect the test equipment as shown in the figure below (unless
otherwise instructed) and perform the adjustment.
DC
power supply
TV SG
RF out
ANT IN
set
POWER (CN4)
VCO Adjustment
Procedure:
1. No connection to ANT IN. (no signal state)
2. Connect a resistor (10 kΩ) between TP33 and +9 V (TP35).
3. Connect a spectrum analyzer to TP34 (with DC cut by a
capacitor (0.01 µF)).
4. Adjust T3 so that the waveform peak is 45.75 MHz ± 1 kHz.
5. After this adjustment, open TP34. (Disconnect the spectrum
analyzer.)
45.75 MHz
AGC Adjustment
Procedure:
1. Set the TV SYSTEM switch to 1.
2. Input a color bar signal of 10ch (193.25 MHz) and 66 dBµV
(75 Ω OPEN).
3. Connect the digital voltmeter to TP42.
4. Adjust VR1 so that reading on the digital voltmeter is
3.0 ± 0.1 V.
Setup during Adjustment
Use the video signal obtained from the TV signal generator as the
alignment signal, and check that this signal is within video output
signal standards.
white (approx. 100%)
0.7 V
0.3 V
red
horizontal sync. signal
Color bar signal from TV signal generator
burst signal (flat)
0.3 V
Connection points: See page 14.
Adjustment points: See page 14.
AFT Adjustment
Procedure:
1. Input a color bar signal of 10ch (193.25 MHz) and 74 dBµV
(75 Ω OPEN).
2. Connect the oscilloscope to TP102.
3. Adjust T3 untill the waveform on the oscilloscope is 2.5 Vp-p.
Note: Small peaks (dips) coming out from the top of the
waveform are unacceptable.
RGB Decoder FO Adjustment
Procedure:
1. Without INPUT1, INPUT2 inputs (no signal input mode), short
the jumper wire between TP100 and GND.
2. Connect a frequency counter to TP61.
3. Adjust VR6 so that reading on frequency counter is
3.579545 MHz ± 100 Hz.
4. After this adjustment, remove the jumper wires.
13
XTL-W70
t
RGB Decoder Input Level Adjustment
Procedure:
1. Input signal : PAL EBU color bar (INPUT 1 VIDEO)
2. Adjust VR4 so that the white peak 1 (100% white) of
TP111 (B OUT) is at 1.0 Vp-p.
SYNC
124 3
TP111
white blue
Connection Points and Adjustment Points:
TP102
TP61
TP100
VR4: RGB Decoder
input Level Adjustment
TP42
TP30
TP33
TP34
VR6: RGB Decoder FO Adjustment
VR1: AGC Adjustmen
T3: VCO Adjustment
: AFT Adjustment
14
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM — MONITOR SECTION —
POWER AMP
26
S109
SELECT
Q801
(AMP)
(AMP)
IC501
71
RV405
GAMMA2
27 29
GAMMA
AMP
BGP
GEN
B+
B+
GAMMA0
Q110
MONITOR
IN
AU-L
(AUDIO)
AU-R
(BEEP)
AU-G
SIRCS
BRIGHT
POWER SW
R IN
G IN
B IN
VBS
(SYNC)
PAL/NTSC
PICTURE OFF
21
10
20
4
6
POWER
ON/OFF
3
SWITCH
Q120
14
15
16
2
PAL/NTSC
8
CONTROL
Q910
7
BL B+
CONTROL
Q810,811
POWER
D102 D132
42
41
40
36
34
(+7.5V)
BUFFER
Q501
S101
SYNC
SEP
B+
REG
IC502
REG
IC510
INT/
EXT
SW
RV406
BGP
XTL-W70
REMOTE
2
CN501
3
2
RV408
BRIGHT
31 28
INV
VIDEO INTERFACE,
LED DRIVE
35
39
12
1CK
WIDE MODE
SELECT
1CK
1CLR
IC111
10
13
RV410
RSUB
BRIGHT
IC407
1Q
2Q
2
6
SP1
(SPEAKER)
RV409
BSUB
BRIGHT
30
AMP
CONTROL
SIGNAL MIX
Q111,112
3233
INVERTER IC910
RV407
R OUT
G OUT
B OUT
RGB
AMP
X110
480kHz
AMP
Q113
19
21
24
38
37
24
S910
H.CENT
RV411
V COM
AMP
14
15
13
V COM AMP
IC406
71
70
6
8
10
7
4
11
20
21
22
(SW B+)
KEY IN MATRIX
IC110
OSC2
OSC1
OUT
13
BLKO
BLDI
FRPT
FRPV
VCS
SYNI
HSY
NTPC
MDW
MDN
PWM
B+
S6
S3
S2
K0
K1
K2
VCC
16
D121
V COM BIAS
Q405,407,408
LCD TIMING CONTROL
IC901
5
11
10
9
3
4
5
B+(+.5V)
SPOI
CTR
SPIO
CLD
CLS
SPS
MOD1
MOD2
LOWI
RESV
RESH
PDP
OSCI
OSCO
DC-DC
CONVERTER
IC601
VCC
OUT
IN–
S104 NAVI
S106 TV/VIDEO
S105
S108
S103
S102
28
33
HR
35
PS
36
37
47
57
58
59
VR
60
32
65
50
49
34
38
44
43
1
FB
2
4
AMP
IC902
RV412
V COM
AMP
RV601
SEARCH
VOL
6.1V
BUFFER
Q901
CONTROL
SENSOR
IC1
3
B+(+5V)
B+(+7.5V)
FILTER
D1
POWER
B+
(5V)
B+
(+13V)
B-
(-17V)
• Signal path
:TV and External Video(AUDIO)
:NAVI(AUDIO)
:VIDEO
CN901
6
VR
7
VG
8
VB
17
COM
18
VGL
10
SPOI
11
HR
12
PS
13
CTR
14
SPIO
15
CLD
25
CLS
26
SPS
27
VR
28
MODE1
29
MODE2
1
VSHA1(+5V)
2
VSHA2(+5V)
3
VSHL1(+5V)
4
VSHL2(+5V)
32
VGH(+13V)
B-
24
21
5
9
16
VCC
VSS(–17V)
GND
GND
GND
LCD1
LIQUID
CRYSTAL
DISPLAY
MODULE
GND
11
+B
22
REG
Q202
DC-DC
CONVERTER
IC201
IN–
5 1
VCC
OUT
B+
(SW B+)
RV201
FB
2
4
5.17V
INVERTER
Q205
T201
D203
D206
D204
D205
D802
DIMMER
SENSOR
B+(+13V)
B+(+7.5V)
B+(+5V)
B–(–17V)
DIMMER
DISCRIMINATION
IC801
2 1 5 1
BUFFER
Q803,804
S801
DIMMER
HIGH
AUTO
REG
Q607
COMPARATOR
IC802
6
5
Q603
BL
DRIVE
7
Q604
INVERTER
Q601
INVERTER
Q602
T601
CN601
1
HOT
2
3
4
HOT
NC
GND
BACK
LIGHT
UNIT
15 15
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