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Panasonic PV-L550 - Lcd Power Block Diagram

Panasonic PV-L550
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10.10. LCD POWER BLOCK DIAGRAM
16
FP1201
FP9002
15, 16
FP1201
17, 18
P9001
12
ON: OPEN
OFF: CLOSE
14
P9002
LCD C.B.A.RELAY C.B.A. LCD SHAFT UNIT
P9001
5
P9002
1, 2
FP1201
1
FP1201
2
FP1201
3,4
P2
5
P2
12
REG+3.5V
UNREG
FP9002
17, 18
FP1201
19,20,21
P9001
13
P2
13
BL +4.5V
FROM
POWER SUPPLY
BLOCK DIAGRAM
LCD
OPEN/CLOSE SW
PWM
COMPARATOR
OSC
DRIVE
VCC
LATCH
T1202
D1204
D1205
D1206
D1203
ERROR
AMP
ERROR
AMP
SHORT
CIRCUIT
PROTECT
LCD NORMAL/
REVERSE SW
ON: REVERSE
OFF: NORMAL
FROM
POWER SUPPLY
BLOCK DIAGRAM
11
P2
(TO IC6001 (79))
LCD MODE
P9001
11
4
7
1
3
1
2
3
4
8
7
6
5
2
5
-
+
+
Q1217
IC1201 (PWM CONTROL)
Q1216
Q1205
Q1206
Q1207
Q1208
Q1209
Q1218
Q1219
Q1221
Q1222
Q1204
Q1203
Q1202
D1201
L1201
L1203
L1207
L1202
REG+3.5V
LCD+3.V
LCD+12V
LCD+7.5V
LCD+5V
LCD-15V
BL+4.5V
ERROR
AMP
Q1210
Q1211
Q1212
Q1213
Q1214
Q1215
Q1220
PV-D300 / VM-D100 / PV-L550 / PV-L600 / PV-L650 / VM-L450
120

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