Sony XTL-W70 User manual
1
SERVICE MANUAL
Chinese Model
XTL-W70
•This set consists of the following units.
MOBILE COLOR TV
Chinese model
MONITOR XVM-W70
TUNER UNIT XT-991V
REMOTE COMMANDER RM-X180
ANTENNA VCA-114
– Continued on next page –
SPECIFICATIONS
Monitor
System Liquid crystal color display
Display Transparent TN LCD panel
Drive system TFT active matrix system
Picture size 7 in.; 154.1 ×87.0 mm, 177 mm
(w ×h, diagonally)
Picture segment336.960 (w 1440 ×h 234)
Speaker type ø36 mm
dynamic speaker
Power requirements
12 V DC car battery
(negative earth)
Current drain Approx. 1.0 A
Dimensions 190 ×127.5 ×26.6 mm
(w ×h ×d)
Operating temperature
+5˚C ~ +45˚C
Mass Approx. 450 g
TV tuner unit
Television system
CCIR I, D, K system
Color system TV: PAL
Video: PAL, NTSC
Channel converge
VHF:1 CH ~ 12 CH
UHF:13 CH ~ 57 CH (China)
21 CH ~ 69 CH (Hong Kong)
Power requirements
12 V DC car battery
(negative earth)
Current drain Approx. 0.5 A
Output terminals
Video output: RCA pin 1Vp-p,
75 ohm
Audio output:RCA pin –14 dBs,
10 kohm
Monitor output:Square 16 -pin
(exclusive)
Tuner unit: XT-991V Monitor : XVM-W70
Ver 1.0 2001. 11
Sony Corporation
e Vehicle Company
Published by Sony Engineering Corporation
9-873-400-01
2001K0400-1
© 2001. 11
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
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2
TABLE OF CONTENTS
1. GENERAL
Location of Controls............................................................... 3
Getting Started........................................................................ 3
Watching 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 ................................................. 5
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
5. EXPLODED VIEWS
5-1. Monitor Section ............................................................... 35
5-2. Tuner Section ................................................................... 36
6. ELECTRICAL PARTS LIST ....................................... 37
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.
Input terminals Video input (2 system): RCA pin 1Vp-p,
75 ohm
Audio input: RCA pin –10 dBs, 10 kohm
Aerial input (1 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)
Mass Approx. 750 g
Wireless remote
Power requirements
AA (R6) battery × 2
Operable range Approx. 3 m
Dimensions 60 ×19 ×166 mm
(w ×h ×d)
Mass Approx. 125 g
(including batteries)
TV aerial
Cord 5 m, 75 ohm
Supplied accessories
Wireless remote (1)
Power input cord (1)
Monitor cable (1)
TV aerial (1)
Parts for installation and
connections (1 set)
Mounting kit (1 set)
Design and specifications are subject to change
without notice.
XTL-W70
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
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TEL 13942296513 QQ 376315150 892498299
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8
XTL-W70 SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET ASSY, MONITOR (REAR)
2-2. SW BOARD, MONITOR BOARD
1
screws (2.6x5)
2
screws (2.6x5)
5
screws (M 2x5)
6
screws (M 2x5
)
4
bracket (w), stand
3
screws (2.6x5)
7
CN601
claw
8
connector
9
cabinet assy, monitor (rear)
1
SW board
2
CN104
6
CN501
claws
S801
4
screws (M2x5)
9
MONITOR boar
d
8
sheet (MAIN PC board)
5
screws (M2x5)
7
Removal the solders
3
sheet
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TEL 13942296513 QQ 376315150 892498299
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9
XTL-W70
+
–
PAL pattern
generator
MONITOR OUT
Monitor
XVM-W70
Regulated D
C
power supply
ACC cord
Parking
VIDEO OUT
(75
Ω
)
Tuner unit
XT-991V
INPUT (1)
(VIDEO)
Equipment Used
The measuring equipment below are used for these electrical
adjustments:
• Oscilloscope
• PAL pattern generator
• Regulated DC power supply
• Digital voltmeter
Connection of Equipment
Unless otherwise specified, the measuring equipment should be
connected as shown below:
SECTION 3
ELECTRICAL ADJUSTMENTS
MONITOR SECTION
Setup for Adjustment
Set to the VISUAL STD mode.
Theadjustment signalis a5-stepgray scalesignal froma PAL pattern
generator.
Input the gray scale signal into the tuner unit and connect an oscil-
loscope 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.
0.74Vp-
p
white
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.
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 toTP206 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.
γ2 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 toTP519 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 toTP517 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.
γ0 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 toTP516 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.
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.
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TEL 13942296513 QQ 376315150 892498299
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10
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.
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 Ais 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
C
B
1st
3rd
5th
A
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TEL 13942296513 QQ 376315150 892498299
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11
XTL-W70
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 Aof the output waveform is
6.84 ± 0.02 Vp-p.
Adjustment Location: See page 12.
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 Aand Bmeet the
specified value.
specified value A: 5.20 ± 0.04 V
B: -1.64 ± 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 toTP16 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 PAL 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.
A
A
0
V
B
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TEL 13942296513 QQ 376315150 892498299
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12
XTL-W70
RV410: B and R Level Adjustment
RV409: B and R Level Adjustment
RV407: RGB Gain,Bright2
Adjustment
RV201: 5V Adjustment
RV412: VCOM Bias Adjustment
RV411: VCOM,VCOM AMP Adjustment
RV601: Inverter Voltage Adjustment
RV902: Freerun
Frequency
Adjustment
RV901: H CEN Adjustment
RV405: GAMMA2 Adjustment
RV406: GAMMA0,Bright2 Adjustment
RV408: Bright1,2
Adjustment
– MONITOR BOARD (SIDE A) –
TP22
–MONITOR BOARD (SIDE B) –
TP517
TP518
TP519
TP401
TP508
TP406
TP206
TP16
TP405
TP516
TP404
Adjustment Location:
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TEL 13942296513 QQ 376315150 892498299
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13
XTL-W70
• Use the following equipment for the electrical adjustment.
Equipment
1Monitor TV (XVM-W70, etc.)
2Spectrum analyzer
3TV signal generator
4Digital voltmeter
5Oscilloscope
6Audio analyzer
7DC power supply
8Frequency counter
Equipment Connections
Connect the test equipment as shown in the figure below (unless
otherwise instructed) and perform the adjustment.
TRAP Adjustment
Procedure:
1. With the Power off, input the output of TG to TP30 (with DC
cut by a capacitor (0.01 µF)).
2. Connect a spectrum analyzer to TP31 (with DC cut by a
capacitor (0.01 µF)).
3. Adjust T1 so that the waveform peak is 39.75 MHz ± 50 Hz.
4. Adjust T2 so that the waveform peak is 30.0 MHz ± 50 Hz.
5. After this adjustment, open TP30 and TP31. (Disconnect the
spectrum analyzer.)
T1= 39.75 MHz
T2= 30.0 MHz
0.7 V
0.3 V 0.3 V
red
white (approx. 100%)
horizontal sync. signal burst signal (flat)
TV SG
set
POWER (CN4)
RF out
ANT IN
DC
power supply
TUNER UNIT SECTION
Color bar signal from TV signal generator
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.
Connection points: Refer to page 14.
Adjustment points: Refer to page 14.
38.0 MHz
AGC Adjustment
Procedure:
1. Set the TV SYSTEM switch to 1.
2. Input a color bar signal of C9ch (192.25 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
6.0 ± 0.1 V.
AFT Adjustment
Procedure:
1. Input a color bar signal of C9ch (192.25 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.
VCO Adjustment
Procedure:
1. No connection to ANT IN. (no signal state)
2. Connect a resistor (10 kΩ) between TP33 and +9V (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 38.0 MHz ± 1 kHz.
5. After this adjustment, open TP34. (Disconnect the spectrum
analyzer.)
2.5 Vp-p
0 V
Note: Small peaks (dips) coming out from the top of the
waveform are unacceptable.
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14
XTL-W70
T3: VCO Adjustment
: AFT Adjustment
VR1: AGC Adjustmen
t
T2: TRAP Adjustment
T1: TRAP Adjustment
VR5: DL AMP & DAT Adjustment
VR6: RGB Decoder FO Adjustment
VR4: RGB Decoder
input Level Adjustment
TP100 TP106
TP111
TP61
TP102 TP42
TP30
TP34
TP33
TP31
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
4.433619 MHz ± 10 Hz.
4. Short the jumper wire between TP106 and GND.
5. Connect a frequency counter to TP61.
6. Confirm that reading on frequency counter is 3.579545 MHz
± 100 Hz.
7. After this adjustment, remove the jumper wires.
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.
white blue
SYNC
TP111
124 3
white blue
SYNC
TP111
124 3
Connection Points andAdjustment Points: Tuner board
DL AMP & DAT Adjustment
Procedure:
1. Adjust DAT so as to minimize the variation between the level
2and the level 3of TP111.
2. Adjust VR5 so that the blue level 4is at 1.0 Vp-p.
3. Set the input to NTSC, and confirm that the blue level 4is at
1.0 ± 0.1 Vp-p.
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TEL 13942296513 QQ 376315150 892498299
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15 15
XTL-W70
4-1. BLOCK DIAGRAM — MONITOR SECTION —
SECTION 4
DIAGRAMS
42
41
40
26
36
34
6
INT/
EXT
SW
SYNC
SEP
BGP
GEN
PAL/NTSC
CONTROL
Q910
GAMMA
AMP AMP
INV
19
21
24
RV405
GAMMA2
S101
POWER
RV406
GAMMA0
RV408
BRIGHT
S104 NAVI
SEARCH
S106 TV/VIDEO
S105
S108
27 29
BSUB
BRIGHT
RV409
RGB
AMP
RV407
V COM
AMP
RV411
V COM
AMP
RV412
30
RSUB
BRIGHT
RV410
31 28
13
14
2
3
11
15
35
12
2
6
13
5 1
2
4
39
8
6
70
71
10
7
4
11
28
33
35
36
37
57
58
59
60
32
65
50
49
44
43
38
47
20
21
22
BL B+
CONTROL
Q810,811
10
9
16
3
4
5
10
1
2
4
5
REG
Q607
BUFFER
Q803,804
INVERTER
Q601
INVERTER
Q602
REG
IC502
REG
IC510
REG
Q202
INVERTER
Q205
B+(+13V)
B+(+7.5V)
B+(+5V)
B–(–17V)
D206
D204
D205
D203
38
37 FILTER
POWER
ON/OFF
SWITCH
Q120
AMP
Q113
V COM BIAS
Q405,407,408
CONTROL
SIGNAL MIX
Q111,112
REMOTE
CONTROL
SENSOR
IC1
VOL
S103
S102
BUFFER
Q501
71 3
2
CN501
5
2 1 5 1
7
BL
DRIVE
Q604
BUFFER
Q901
3233
21
CN101
MONITOR
IN
10
20
4
6
3
14
15
16
2
8
7
22
11
B+
(5V)
B+
(+13V)
B-
(-17V)
B-
AU-L
(AUDIO)
AU-R
(BEEP)
AU-G
SIRCS
BRIGHT
POWER SW
R IN
G IN
B IN
VBS
(SYNC)
PAL/NTSC
PICTURE OFF
B+
GND
SP1
(SPEAKER)
D102 D132
BGP
Q110
S109
SELECT
S910
H.CENT
RV601
6.1V
S801
DIMMER
1CK 1Q
2Q
1CK
1CLR
B+
(AMP)
B+
(AMP)
B+
(SW B+)
BLKO
BLDI SPOI
HR
PS
CTR
SPIO
CLD
CLS
SPS
VR
MOD1
MOD2
LOWI
RESV
RESH
PDP
IN–
FB
OUT
OSCI
OSCO
FRPT
FRPV
VCS
SYNI
HSY
NTPC
MDW
MDN
PWM
VCC
OSC2 S6
S3
S2
K0
K1
K2
OSC1
OUT
VCC
B+(+5V)
B+(+7.5V)
B+(+.5V)
D1
POWER
D121
X110
480kHz
13
POWER AMP
IC501
WIDE MODE
SELECT
IC111
T201 T601
RV201
5.17V
DC-DC
CONVERTER
VCC IN–
FB
OUT DIMMER
DISCRIMINATION
IC801
D802
DIMMER
SENSOR
1
2
3
4
HOT
VR
VG
VB
COM
VGL
SPOI
HR
PS
CTR
HOT
NC
GND
BACK
LIGHT
UNIT
LCD1
LIQUID
CRYSTAL
DISPLAY
MODULE
6
7
8
17
18
10
11
12
13
SPIO
14
CLD
15
CLS
25
SPS
26
VR
27
MODE1
28
MODE2
29
VSHA1(+5V)
VSHA2(+5V)
VSHL1(+5V)
VSHL2(+5V)
1
2
3
4
VGH(+13V)
32
VCC
24
VSS(–17V)
21
GND
5
GND
9
GND
16
V COM AMP
IC406
R OUT
G OUT
B OUT
24
INVERTER IC910
LCD TIMING CONTROL
IC901
B+
(SW B+)
DC-DC
CONVERTER
Q603
COMPARATOR
IC802
HIGH
AUTO
VIDEO INTERFACE,
LED DRIVE
IC407
• Signal path
:TV and External Video(AUDIO)
:NAVI(AUDIO)
:VIDEO
KEY IN MATRIX
IC110
CN901
AMP
IC902
34
B+
(+7.5V)
Q801
CN601
IC201
IC601
TUNER
BOARD
CN3 (XT-991V)
1
(Page 16)
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1616
XTL-W70
4-2. BLOCK DIAGRAM — TUNER UNIT (VIDEO) SECTION —
4
INPUT 1
VIDEO
INPUT 2
VIDEO
MONITOR
OUT
J5-1
J6-1
VIDEO
NAVI IN
SONY NAVI
(NVX)
J10-1
OUTPUT
VIDEO
J8-1
VIDEO INPUT SELECTOR
IC30
CN2 (1/2)
12
12
15
14
13
3
16
8
9
5
10
2
6
7
15
14
13
10
2
1
3
5
7
1
6
3
7
2 4
3
5
14
15
2
48
62
59
58
7
8
31
32
6
6
5
46
61
52
51
45
64
11
37
13
38
43
39
1
BUFFER
Q103
DL2
RGB
DECODER
FO
BUFFER
Q90
BUFFER
Q78
BUFFER
Q40,41
SIMULATION
BUFFER
Q53
COMP
BUFFER
Q60
RGB
DECODER
INPUT
LEVEL
SYNC
SEPARATOR
IC17
1
1
4
SIRCS
CONTROL
IC23
EEPROM
IC50
POWER
ON/PFF
Q10
SIRCS
Q77
1
27
BEEP
CONTROL
IC22(2/2)
10
98
RGB
CONTROL
IC21 (1/3)
5
63
RGB
CONTROL
IC22 (1/2)
IH
DL
HUE
APC VXO
DL
AMP
DEM Y/C
MIX
DAT
30 12 11 14
9
SYNC GENERATOR
IC31
XT
XT
C.SYNC
RESET
VR4 8
15
5
10
1342
24
23
RELAY
DRIVE
Q128
INT/PAL
SWITCH
Q127,129
ACC CHROMA
AMP
32
X4 3.58MHz
X5 4.43MHz
B+
(S +5V)
RY1
VR6
VR6
3
4
12 14
215
5
12
2
11109
13
1
4
14
15
11109
R
BUFFER
Q64
G
BUFFER
Q63
B
BUFFER
Q62
SYNC
BUFFER
Q61
R OUT
G OUT
B OUT
CN3
RGB SWITCH
IC25
RGB SWITCH
IC26
0Z
1Z Z
0X 0X
1X
0Y
1Y
XX
0Z Z
0Y Y
Y
CBA CBA
VBS
R
G
B
AUDIO
NT/PAL
BRIGHT
SIRCS
BEEP
B+ 12V
POWER
SW
PICTURE
OFF
B+
(S +5V)
VR5
DL AMP
& DAT
Q101Q100
UK/CCIR
HUE
V SYNC
H SYNC
H
V.MUTE
VD/RGB
SIMUL
CLK
DATA
COL
NT/PAL
YS
ON/OFF
DISPLAY OFF
BRT
SIRCS
BEEP
SYSTEM CONTROL
IC12 (1/2)
B+
(S +5V)
SW1
TV SYSTEM
VBS
AUX (V)
R
G
B
V2
V1
SIMUL
VIDEO
SIRCS
BEEP
1
3
2
7
VIDEO
SWITCH
IC19
VIDEO SWITCH
IC18 (1/2)
0Z
1Z
1Y
1X
0Y
Z
12
0X
Y
X
10 9 11
13
BAC
X3
3.58MHz
Y IN VXO2APC TC VXO1 HUE
SYNC
IN
DLA
IN
DLA
BIAS
C.SYNC
C ADJ
C OUT
C IN
RGB DECODER
IC24
11 12
13
IC21 (2/3)
AUDIO
SECTION
2
AUDIO
SECTION
3
AUDIO
AUDIO
SECTION
4
MONITOR
BOARD
CN101
(XVM-
W70)
1
B+
(S +12V)
•Signal path
: VIDEO
: AUDIO
BUFFER
Q42
1
2
VIDEO
BUFFER
Q91,92
BEEP
GENERATOR
IC21(3/3) 61
(Page 17)
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(Page 17)
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17 17
XTL-W70
4-3. BLOCK DIAGRAM — TUNER UNIT (AUDIO) SECTION —
INPUT1
AUDIO
L
-2
CN2 (2/2)
J10-2
J5-2,3
AUDIO
AUDIO
R-CH
R-CH
R-CH
NAVI IN
SONY NAVI
(NVX)
INPUT2
AUDIO
J6-2,3
R
-3
L
-2
R
-3
OUTPUT
AUDIO
J8-2,3
L
-2
R
-3
ANT IN
J1
TRAP
T1,2
AGC
VR1
VCO
AFT
VIDEO
DET
RF
AGC
HPF
T3
VOLTAGE
CONTROL
IC3
B+
(S +9V)
3
CN4
P. B
ACC
3
4
67
31
15
11 1
4 1
7
47
35
14
15
42
40
60
44
29
21
22
4 5
12
49
4
8
4
3
11
12
13
1
9 4 5
14
9 10 6
13
18
19
D6
D2
EQ
IN
VIDEO
VDET
CF1
14
21
X2
8MHz
RESET
IC1
CF3
6MHz
CF2
5.5MHz
EQ
AMP
FM
DET HPF VCA PAUSE
DET
LATCH
Q20,21
VIDEO
AMP
Q24
LATCH
Q22,23
LPF
GATE
PILOT
CANCEL
2
1 24 1 10
1 3
1 3
POWER
ON/OFF
Q3,4
B+
SWITCH
Q2
D5
FU1
3.15A
+5V
REG
Q1
AUDIO MUTE
DRIVE
Q72,73
TONE
AMP
Q30,31
LEVEL
DETECT
Q32
B+
(+5V)
POWER
MUTE
DRIVE
Q35
Q96
MUTE
AUDIO
MUTE
Q80
MUTE
Q81
SIMUL
X2
2nd
SIF
FM
DET
X1
X0
X
B A INH
R-CH
R-CH
IC15
57
SYSTEM CONTROL
IC12 (2/2)
VIDEO
V1
V2
UK/CCIR
AFT
PLL DATA
PLL CLK
P. B
POWER
VIDEO1
VIDEO2
VOL
S.MUTE
RESET
XIN
XOUT
R-CH
LEVEL
ADJ
Q33
B+
(S +9V)
B+
(S +12V)
B+
(S +5V)
IC29 (1/2)
IC29 (2/2)
57
57
IC27
IC28
TUNER BLOCK
TU1
VF/SIF PROCESSOR
IC13
IN
BT
SCL
SDA
IF2
AGC
SF1
VIF
VCO MIX
VCO
VIF
RF
AGC
RF AGC VR
AFT
10 8
3
Q106
12
NF
OUT
NOISE CANCELLER
IC33
AUDIO
VOLUME
CONTROL
IC16
6
+9V REG
IC4
+5V REG
IC2
AUDIO SWITCH
IC14
VIDEO
SECTION
3
VIDEO
SECTION
2
VIDEO
SECTION
4
•Signal path
: VIDEO
: AUDIO
•R-ch is omitted due to same as L-ch.
(Page 16)
(Page 16)
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1818
XTL-W70
Pin No. Pin Name I/O Pin Description
53 MON A O Test setting output
54 MON B O Test setting output
55 MON C O Test setting output
56 MON D O Test setting output
57 CLS O Clock signal output for gate driver
58 SPS O Reset signal output for gate driver
59 VR I Scanning setting signal input for gate driver
60 MOD1 O Control signal for gate driver
61 TCLK I Test setting input Fixed at “L”.
62, 63 GND — Ground pin
64 GPS O Signal output for gate power supply
65 LOWI I Control signal input for gate driver
66 ABC I Input for out setting Fixed at “L” in this set.
67 VDD — Power supply pin (+5 V)
68 GND — Ground pin
69 DVTC I Test setting input Fixed at “H”.
70 BLKI I Screen position adjustment signal input
71 BLKO O Screen position adjustment signal output
72 SYNO O Composite synchronizing signal output
4-4. IC PIN DESCRIPTIONS
• IC901 LZ9GJ24 (LCD TIMING CONTROL)
Pin No. Pin Name I/O Pin Description
1 VIN I Vertical synchronizing signal input (positive polarity)
2 CVOP O Vertical synchronizing separation signal output
3 MON E O Test setting output
4 HSY I/O Horizontal synchronizing signal input/output (negative polarity)
5 VDD — Power supply pin (+5 V)
6 FRPT O Polarity inversion signal output for equal direction electrode
7 SYNI I Composite synchronizing signal input
8 FRPV O Polarity inversion signal output for video signal
9 GND — Ground pin
10 VCS O Mask signal output for normal mode
11 NTPC I Signal input for NTSC or PAL setting (“H”: NTSC, “L”: PAL)
12 VSY I/O Vertical synchronizing signal input/output Not used in this set. (Open)
13 HRVC I Signal input for horizontal scanning direction setting Fixed at “H” in this set.
14 VRVC I Signal input for vertical scanning direction setting Fixed at “L” in this set.
15 CLKC I Signal input for clock and synchronizing signal in/out setting Fixed at “H” in this set.
16 MDS I Signal input for display mode setting Fixed at “H” in this set.
17 GND — Ground pin
18 EXCL I/O Clock signal input/output Not used in this set. (Open)
19 GND — Ground pin
20 MDW I Signal input for display mode setting
21 MDN I Signal input for display mode setting
22 PWM O Backlight adjustment light control signal output
23 MON F O Test setting output
24 VSWC I VSWO signal out control input Fixed at “H” in this set.
25 VSWI I Video system select signal input Fixed at “H” in this set.
26 VSWO O Video system select signal output
27 VDD — Power supply pin (+5 V)
28 SPOI I/O Start signal input/output for source driver
29 GND — Ground pin
30 PCP O Test setting output Not used in this set. (Open)
31 CLOC I EXCL terminal out mode select signal input Fixed at “H” in this set.
32 MOD2 O Control signal output for gate driver
33 HR O Horizontal scanning setting signal output for source driver
34 IHR O Horizontal scanning setting signal output for source driver Not used in this set.
35 PS O Control signal output for source driver
36 CTR O Control signal output for source driver
37 SPIO I/O Start signal input/output for source driver
38 PDP O Phase comparation signal output
39 GND — Ground pin
40 MON O Test setting output
41, 42 GND — Ground pin
43 OSCO O Clock oscillation circuit signal output
44 OSCI I Clock oscillation circuit signal input
45 VDD — Power supply pin (+5 V)
46 GND — Ground pin
47 CLD O Clock signal output for source driver
48 TST1 I Test setting input Fixed at “H”.
49 RESH I Horizontal counter reset signal input
50 RESV I Vertical counter reset signal input
51 TST2 I Test setting input Fixed at “H”.
52 TEST I Test setting input Fixed at “H”.
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19 19
XTL-W70
Ref. No. Location
D1 I-6
D120 B-7
D121 B-7
D602 D-3
D801 A-7
D902 H-2
D903 G-2
D906 F-1
IC1 I-9
IC110 B-7
IC111 B-6
IC406 D-8
IC407 E-7
IC501 C-13
IC601 E-4
IC801 A-8
IC901 G-2
IC902 H-1
IC910 G-3
Q110 B-6
Q120 C-9
Q405 D-9
Q407 D-9
Q408 D-9
Q501 B-11
Q601 B-5
Q602 A-4
Q607 E-3
Q901 G-1
Q910 H-3
• Semiconductor
Location
(MONITOR BOARD
(SIDE B) )
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
• % : indicates tolerance.
•f: internal component.
•C: panel designation.
•A: B+ Line.
•B: B– Line.
•H: adjustment for repair.
• CN101 of XVM-W70 is connected to CN3 (MONITOR
OUT) of Tuner Unit (XT-991V) with a monitor cable.
Power voltage is dc 14.4 V from ACC cord of the Tuner
Unit and fed with regulated dc power supply.
(XVM-W70) (Monitor Section)
• CN101 of XVM-W70 is connected to CN3 (MONITOR
OUT) of Tuner Unit (XT-991V) with a monitor cable.
Voltage and waveforms are measured at input the color
bar signal from INPUT 1 VIDEO (J5-1) jack of the Tuner
Unit. (XVM-W70) (Monitor Section)
• Powervoltage isdc14.4Vandfed withregulateddcpower
supply from ACC CN4. (Tuner Section)
• Voltage is dc with respect to ground under no-signal
condition. (Tuner Section)
• Voltages aretaken witha VOM(Input impedance10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path. (Monitor section)
F: TV and External Video (AUDIO)
J: NAVI (AUDIO)
c: VIDEO
• Signal path. (Tuner section)
L: VIDEO
F: AUDIO
for printed wiring boards:
•Y: parts extracted from the conductor side.
•a: Through hole. (Monitor, Monitor Switch
Sections.)
•z: Through hole. (Tuner section)
•: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts onthepattern facesideseenfromthe
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
• Semiconductor
Location
(MONITOR BOARD
(SIDE A) )
Ref. No. Location
D122 H-8
D123 H-8
D201 D-11
D203 E-10
D204 F-10
D205 F-10
D206 F-9
D208 E-11
D550 B-9
D802 A-7
D803 A-5
D804 A-5
D810 B-8
D811 A-8
D904 H-2
D905 G-1
IC201 E-12
IC502 B-10
IC510 C-10
IC802 A-6
Q111 H-8
Q112 H-8
Q113 H-9
Q202 D-11
Q205 E-11
Q603 A-5
Q604 A-5
Q801 A-7
Q803 B-5
Q804 A-5
Q810 B-8
Q811 B-8
• Waveforms
— Monitor Board —
3
1
2
1.0Vp-p
IC407 ef
5.0Vp-p
IC407 eh
IC407 r;
IC407 ra
IC407 rs
4
1.0Vp-p
5
1.0Vp-p
6
1.0Vp-p
5.0Vp-p
H
H
H
H
H
HIC407 eg
• Waveforms
— Tuner Board —
1
2
8MHz
IC12 wa (X IN)
2.2Vp-p
0.9Vp-p
3.58MHz
IC24 4(VXO1)
3
3.1Vp-p
3.5MHz
IC31 6(XT)
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2020
XTL-W70
4-5. PRINTED WIRING BOARD — MONITOR SECTION — • Refer to page 19 for Note and Semiconductor Location.
RV412
C2
T601
L602
L603
C605
R650
R651
C607
RV901
C926
C609
RV601
C806
C424
C448
C405
C452
C204
C205
T201
C456
RV408
RV407
C439
C440
RV406
RV405
RV409
RV410
RV411
RV201
C215
C212
C207
C214
RV902
L201
L205
C538
C536
IC502
IC510
C553
C437
C436
D206
C211
D203
R210
Q205
IC201
X110
R162
Q603
D804
Q112
Q111
Q113
R161
R160
D123
C122
D122
R159
R158
R157
Q810
C820
C937
C938
C554
L402
L404
L801
L203
L204
L206
D201
D810
D811
D905
D803
Q801
Q811
Q604
Q803
Q804
Q202
IC802
R556
R555
C537
C531
R552
C540
C202
R201
R206
D208
R212
R205
C203
R204
R203
C221R221
R464
C1
R461
R467
C453
C447
R462
R463
R483
R484
R202
R207
R459
R457
R449
R451
R453
R455
R821
R824
R820
R822
R823
C809
R807
C801
C509
C805
R806
R602
R601
R216
C602
R605
C225
R603
R617
R604
R811
C808
R808
R809
R810
C807
C804
R930
C940
C941
C948
R931
R932
R929
C939
R926
R928
R927
C936
D904
R925
R591
C951
C950
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F2
F1
F601
F101
F3
F4
D204
D205
C208
C560
C206
L403
C438
D802
C610
C611
R173
R593
R592
D550
C521
CN501
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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