Sony XTL-750W / XVM-750WEX Service Manual ▷ View online
9
9
4-1. BLOCK DIAGRAM — MONITOR SECTION —
XTL-750W/XVM-750WEX
SECTION 4
DIAGRAMS
CN1
D301
3
CN302
2
10
5
15
14
13
12
8
S1
POWER
6
9
04
CN8
7
8
CN601
1
2
CN101
3
SIRCS
2
2
B+ (5V)
CN602
1
2
6
12
2
5
24
3
1
22
23
4
10
13
15
16
17
21
11
18
V COM AMP
IC203
5
7
INV IC204
4
2
1
7
8
8
AUDIO POWER AMP IC301
AUDIO
(MAIN)
SIRCS
BRIGHT
R IN
G IN
B IN
C. SYNC
POWER SW
16
WIDE MODE1
(PAL/NTSC)
HIDEAWAY
UNIT
+B
BL OFF/ON
AUDIO
(SUB)
SYNC
SEP
BGP
GEN
GEN
BGP
AMP
Q101
COMP
COMP
ERROR AMP
INT/
EXT
SW
RV213
GAMMA2
B+ (AMP)
V COM
BIAS
Q207-210
MIX/
BUFFER
Q102, 103
B+
SWITCH
Q608
42
26
40
B+
ON/OFF
Q606,607
BL B+
ON/OFF
Q602
BL
CONTROL
Q801, 802
REG
Q604
36
34
INV
AMP
GAMMA
AMP
41
19
24
BL
DRIVE
Q601
SWITCH
Q611
INVERTER
Q609, 610
Q609, 610
DC-DC
CONVERTER
Q502-504
BUFFER
Q603, 605
3
7
10
14
38
21
S101 NAVI
S102 TV/VIDEO
S103 SEARCH (+)
S104 SEARCH (–)
S107 VOL (+)
S108 VOL (–)
X101
480kHz
DIMMER DISCRIMINATOR IC701
DC-DC CONVERTER
IC401
DC-DC
CONVERTER
TRANSFORMER
T501
REG
IC302
D102
POWER
F901
F601
L505
F501
Q105
5
7
2
1
ERROR AMP
T601
11
14
15
13
KEY IN MATRIX
IC102
3
1
2
1
2
5
6
6
1
7
8
8
3
5
6
6
6
7
COMPARATOR IC601
5
D302
CN301
AUDIO POWER AMP IC303
VIDEO INTERFACE, LED DRIVER
IC201
1
2
B+ (AMP)
B+ (5V)
OSC 1
OSC 2
1
REMOTE
CONTROL
SENSOR
IC101
OUT
S6
S3
S0
S2
3
K0
4
K1
5
K2
B+ (AMP)
+B
B+ (13V)
RV210
V COM
AMP
RV211
V COM
DC
RV601
INVERTER
VOLTAGE
RV401
5V
RV212
GAMMA0
27
RV201
BRIGHT
29
35 39
33
32
37
RV207
R SUB
BRIGHT
31
RV209
B SUB
BRIGHT
30
RV208
RGB
AMP
28
D701
DIMMER
SENSOR
D502
D110
L602
L501
L601
T602
B+ (7.5V)
D503
L502
B+ (5V)
D504
L503
B- (-5V)
D505
L504
B- (-16V)
D506
L513
L512
L510
L511
10
7
9
12
10
13
1CK
2
6
+B
5V
VR
VG
VB
COM
LIQUID
CRYSTAL
DISPLAY
LCD1
BACK
LIGHT
UNIT1
UNIT1
BACK
LIGHT
UNIT2
UNIT2
13
NTP
FRPT
FRPV
VCS
SYN
HSY
MODW
MODN
VGH
VSH
NTP
HRV
VRV
CLKC
MODS
VGL
PWM
HV
GND
HV
GND
S105
SELECT
S701
DIMMER
AUTO
HIGH
LOW
SP1
MAIN/L
SPEAKER
SP2
SUB/R
SPEAKER
1Q
1CLR 2CLR
2Q
WIDE MODE SELECT
IC103
• Signal path
: TV and External Video (AUDIO)
: NAVI (AUDIO)
: VIDEO
PAL/NTSC
CONTROL
Q104
10
10
XTL-750W/XVM-750WEX
4-2. PRINTED WIRING BOARDS — MONITOR SECTION —
Ref. No.
Location
D101
E-7
D104
E-8
D105
E-8
D106
E-7
D107
E-7
D108
F-7
D109
E-7
D110
E-7
D111
E-8
D112
E-7
D113
E-7
D201
D-4
D202
C-5
D203
C-4
D204
C-5
D502
E-4
D503
E-4
D504
E-4
D505
D-4
D506
D-4
D601
E-9
D602
D-9
D603
D-8
D701
F-7
D702
E-6
D801
E-6
D802
D-6
IC102
E-7
IC201
A-7
IC301
E-2
IC303
E-1
IC601
D-9
IC701
E-6
Q101
E-8
Q102
E-8
Q103
E-9
Q104
B-5
Q207
C-5
Q208
C-5
Q209
B-5
Q210
B-5
Q502
E-3
Q503
D-3
Q504
F-3
Q601
D-8
Q602
E-8
Q603
E-9
Q604
E-8
Q605
D-9
Q606
E-9
Q607
E-9
Q609
A-8
Q610
C-8
Q801
D-6
Q802
E-7
• Semiconductor
Location (side A)
Note:
• Y
: parts extracted from the conductor side.
•
z
: Through hole.
• b
: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
11
11
XTL-750W/XVM-750WEX
Ref. No.
Location
D1
F-11
D2
D-1
D301
C-1
D302
C-1
D604
D-9
D605
E-10
IC103
E-7
IC203
C-6
IC204
B-6
IC302
D-2
IC401
E-3
Q105
F-7
Q608
E-9
Q611
D-10
• Semiconductor
Location (side B)
12
12
XTL-750W/XVM-750WEX
4-3. SCHEMATIC DIAGRAM — MONITOR SECTION (1/2) — • Refer to page 14 for IC Block Diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• CN1 of XVM-753W is connected to CN3 (MONITOR OUT)
of Hideaway Unit (XT-993V) with a monitor cable.
Power voltage is dc 14.4 V from ACC cord of the
Hideaway Unit and fed with regulated dc power
supply. (XVM-753W)
Power voltage is dc 14.4 V from ACC cord of the
Hideaway Unit and fed with regulated dc power
supply. (XVM-753W)
• CN1 of XVM-753W is connected to CN3 (MONITOR OUT)
of Hideaway Unit (XT-993V) with a monitor cable.
Voltage and waveforms are measured at input the color
bar signal from INPUT 1 VIDEO (J5-3) jack of the
Hideaway Unit. (XVM-753W)
Voltage and waveforms are measured at input the color
bar signal from INPUT 1 VIDEO (J5-3) jack of the
Hideaway Unit. (XVM-753W)
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: TV and External Video (AUDIO)
J
: NAVI (AUDIO)
c
: VIDEO
(P
age 11)
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