Diagrams; Block Diagram -Monitor Section - Sony XTL-750W Service Manual

4-1. BLOCK DIAGRAM — MONITOR SECTION —
CN1
AUDIO POWER AMP IC301
3
AUDIO
7
(MAIN)
8
D301
5
6
AUDIO POWER AMP IC303
2
AUDIO
7
(SUB)
8
D302
5
6
10
SIRCS
5
BRIGHT
15
R IN 42
INT/
14
G IN 41 EXT
13
SW
B IN 40
12
SYNC
C. SYNC 36
SEP
34
TV
S1
TUNER
POWER
UNIT
VIDEO INTERFACE, LED DRIVER
(XT-991V/992V) 8
POWER SW
16
WIDE MODE1
(PAL/NTSC)
+B
F901
6
REG
+B 1
IC302
F601
B+
SWITCH
Q608
L601
B+
ON/OFF
Q606,607
BL B+
ON/OFF
Q602
BL
9
BL OFF/ON
CONTROL
Q801, 802
DIMMER DISCRIMINATOR IC701
2 1 5 7
S701
D701
DIMMER
DIMMER
SENSOR
AUTO
HIGH
LOW
04
SECTION 4

DIAGRAMS

CN302
2
1
SP1
1 MAIN/L
3 SPEAKER
B+ (AMP)
CN301
2
1
SP2
SUB/R
1
SPEAKER
3
B+ (AMP)
RV201 RV207
RV213 RV212
R SUB
GAMMA2 GAMMA0 BRIGHT
BRIGHT
26 27 29 31 30
GAMMA
INV AMP
AMP
BGP
BGP
GEN
35 39 33
IC201
Q105
WIDE MODE SELECT
1Q 2
12 1CK IC103
2Q 6
1CLR 2CLR
S105
10 13
SELECT
2 B+ (AMP)
F501 L505 DC-DC CONVERTER
IC401
L602
ERROR AMP
RV601
3
INVERTER
VOLTAGE
7 COMP
T601
BL
REG SWITCH INVERTER
DRIVE
Q604 Q611 Q609, 610
Q601
COMPARATOR IC601
T602
6
7
5
– 15 –
KEY IN MATRIX
IC102
S6 11
S3
10
14 OSC 2
X101
S0 7
480kHz
15 OSC 1
MIX/
S2 9
AMP
BUFFER 13 OUT
Q101
Q102, 103
RV209 K0 3
RV208
K1 4
B SUB
BRIGHT RGB K2 5
AMP
B+ (5V)
28
D110
19
21
24
V COM AMP
IC203
V COM
5 7
38 BIAS
Q207-210
RV210
32 37
V COM
AMP
4 2
INV IC204
D502 L501
DC-DC
CONVERTER
TRANSFOMER D503 L502
T501
D504 L503
D505 L504
DC-DC
CONVERTER
D506 L513
Q502-504
COMP 10
ERROR AMP
RV401
14
5V
CN101
3 SIRCS
2 5V
B+ (5V)
S101 NAVI
S102 TV/VIDEO
2
S103 SEARCH (+) +B
D102
S104 SEARCH (–)
POWER
S107 VOL (+)
• Signal path
S108 VOL (–)
: TV and External Video (AUDIO)
: NAVI (AUDIO)
: VIDEO
CN8
7 VR
8 VG
6 VB
12 COM
PAL/NTSC
13 NTP
RV211
CONTROL
V COM
Q104
DC
2 FRPT
5 FRPV
24 VCS
3 SYN
1 HSY
22 MODW
23 MODN
L512
4 VGH
B+ (13V)
10 VSH
13 NTP
B+ (7.5V)
15 HRV
L510
16 VRV
B+ (5V)
17 CLKC
21 MODS
B- (-5V)
L511
11 VGL
B- (-16V)
18 PWM
BUFFER
Q603, 605
CN601
1 HV
GND
2
CN602
1 HV
2 GND
– 16 –
XTL-750W
REMOTE
CONTROL
1
SENSOR
IC101
LIQUID
CRYSTAL
DISPLAY
LCD1
BACK
LIGHT
UNIT1
BACK
LIGHT
UNIT2