Panasonic PV-L452 Service Manual page 174

LCD POWER BLOCK DIAGRAM
MAIN C.B.A.
FROM
POWER SUPPLY
CAM +3.5V
BLOCK DIAGRAM
1
* IC6001 KEY VOLTAGE CHART
(LCD PANEL MODE) (SW9101,9102)
TERMINAL LCD PANEL MODE
VOLTAGE
NORMAL&
(Pin 79 of IC6001) OPEN&CLOSE
REVERSE
0V NORMAL CLOSE
2.6V NORMAL OPEN
1.1V REVERSE CLOSE
3.5V REVERSE OPEN
1
* (TO IC6001 (79))
LCD MODE
UNREG
LCD +13V
FROM
POWER SUPPLY
BLOCK DIAGRAM
LCD -15V
BL +4.5V
(FROM IC6001(28))
LCD ON (H)
LCD SHAFT UNIT LCD C.B.A.
FP10 FP9101 FP1201
25 2 22
ON : REVERSE
OFF : NORMAL
SW9101
LCD NORMAL
REVERSE SW
FP10 FP9101
26 1
FP10 FP9101
24 3
SW9102
LCD OPEN/
CLOSE SW
ON : OPEN
OFF : CLOSE
FP10 FP9101 FP1201
9 18 7
FP10 FP9101 FP1201
1 26 1
FP10 FP9101 FP1201
3 24 2
FP10 FP9101 FP1201
5-8 19-22 3-6
FP10 FP9101 FP1201
10 17 8
Q1214
Q1213
+5V
REGULATOR
Q1206
Q1208,Q1209
+7.5V
REGULATOR
Q1211
Q1207
LCD +3.5V
SW +3V
Q1203
Q1215
LCD +5V
LCD +12V
LCD +7.5V
LCD -15V
BL +4.5 V
LCD POWER BLOCK DIAGRAM
PV-L452/PV-L652