7-7
Power Supply-2 Block Diagram
A81H1BLP2
CONTINUE
PO
WER SUPPL
Y
-1
BLOCK DIA
GRAM
HO
T
COLD
IC600
(FEEDBA
CK)
IC503
(FEEDBA
CK)
IC502
(FEEDBA
CK)
PO
WER SUPPL
Y CB
A
DIGIT
AL MAIN CB
A UNIT
INVER
TER PO
WER CB
A
4
3
1
2
4
3
1
2
T601
CN200
13
15
14
11
10
2
4
7
6
8
16
12
9
IC210
,Q210,
Q211,Q212
SW+12V
Q240,Q241,
Q242,Q243
SW+13V
Q220,Q221,
Q222
SW+5V
Q200,Q201
SW+6V
IC3604
+5V REG.
IC3603
+2.5V REG.
IC3601
+1.2V REG.
IC3605
+1.8V REG.
IC3602
+3.3V REG.
IC220
+3.3V REG.
Q250
+9V REG.
IC290
+3.3V REG.
IC650
Q650
SHUNT
REG.
+6V
99
+3V
11
11
CN202
P-ON-H1
22
22
CN203
PR
O
TECT6
23
23
CN206
CN753
+13V
+13V
66
+2.7V
77
CN201
CN3701
CN3702
CN3705
CN3601
LCD+12V
21,22
21,22
AL+3.3V
20
20
P-ON+6V
17,18
17,18
P-ON+9V
16
16
+3V
14
14
+4V
12,13
12,13
+2.7V
10
10
+6V
88
VT+33V
44
AMP+13V
P-ON+6V
AL+3.3V
T
O
SYSTEM
CONTR
OL
BLOCK DIA
GRAM
P-ON-H1
PR
O
TECT6
VT+33V
P-ON+9V
LCD+12V
+5V
+3.3V
+2.5V
+1.2V
+1.8V
P-ON+9V
P-ON+3.3V
HOT CIRCUIT. BE CAREFUL.
1
2
4
3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Содержание LC420SS8
Страница 1: ...SERVICE MANUAL 42 COLOR LCD TELEVISION LC420SS8 ...
Страница 16: ...4 4 A81H1DC 9 Power Supply CBA 10 PCB Holder S 12 S 14 S 13 8 Jack CBA S 13 S 13 S 14 S 14 S 14 Fig D3 ...
Страница 37: ...8 8 A81H1SCF Function Schematic Diagram ...
Страница 38: ...8 9 A81H1SCIR IR Sensor Junction Schematic Diagram ...
Страница 42: ...8 13 Digital Main 4 9 Schematic Diagram A81H1SCD4 ...
Страница 43: ...8 14 Digital Main 5 9 Schematic Diagram A81H1SCD5 ...
Страница 50: ...8 21 BA81H0F01022 1 Jack CBA Top View ...
Страница 54: ...8 25 Function CBA Top View Function CBA Bottom View BA81H0F01012 4 Junction CBA Top Bottom View BA81H0F01012 2 ...