Panasonic PV-L452 Service Manual page 173

POWER SUPPLY BLOCK DIAGRAM
BATTERY CATCHER UNIT
DC JACK
1
2
3
4
BATTERY JACK
+ 5
- 6
7
COIN
BATTERY
8
(TO IC6005(8))
BACK UP VOLTAGE
(TO Q6026(B))
BATTERY VOLTAGE
(FROM Q6010(C))
POWER ON (L)
TO/FROM
SYSTEM CONTROL
BLOCK DIAGRAM
(TO Q6026(E))
SW UNREG
(FROM IC6001(54))
LCD BACKLIGHT CONTROL
(TO Q6012(G))
VOLTAGE DOWN
TO SERVO (TO IC2001(50))
BLOCK DIAGRAM TRIANGLE WAVE
MAIN C.B.A.
D1102
Q1101
Q1103
OVER
VOLTAGE
PROTECT
F1002
F1001
FP2
15-18
FP2
14
IC1001 (PWM CONTROL)
FP2
21-24
FP2
20
Q1013
REFERENCE
ERROR
19 VOLTAGE
AMP
REGULATOR
Q1011
Q1002
20
Q1001
13
14
ON/OFF
21
CONTROL
22
23
SHORT
17 CIRCUIT
PROTECTOR
15
TRIANGLE
Q1003 WAVE
OSCILLATOR
BUFFER 16
FP4
FP4
(TO IC6001(78))
LIGHT SHORT CIRCUIT PROTECT
Q1105
(FROM IC6001(55))
Q1102
LIGHT ON (H)
Q1005
L1001
+4.5V
CONTROL
DRIVE 3
PWM
CONTROL
ERROR AMP 7
5
Q1006
+3.5V
10 CONTROL
DRIVE 46
PWM
CONTROL
ERROR AMP 11
Q1007
CAMERA
POWER
CONTROL
27
DRIVE 41
PWM
CONTROL
ERROR AMP 26
Q1008
+4.5V
CONTROL
31
DRIVE 36
PWM
CONTROL
ERROR AMP 29
Q1009,Q1024
CAP VM
CONTROL
Q1010
LAMP SOCKET UNIT
6,7
4,5
L1015
L1006
Q1015
L1002
L1012
R1057
L1005
L1007
Q1020
Q1021
NOT USED
L1004 L1016
L1008
L1009
Q1016
L1010
D1011
T1001
D1005
3 4 Q1017
5
(WITH COLOR EVF OR LCD)
D1007
6
Q1019
L1011
1 7
D1012
Q1018
L1003
SPK +4.5V
AF +4.5V
SW CYLINDER VM
PC +5V
REG +4.8V
UNREG
LED +4.5V
EVF +4.5V
REG +4.5V
CAM +4.5V
(FROM IC6001(18))
EVF ON(H)
REG +3.5V
CAM +3.5V
CAM+15V
EVF+13V
LCD+13V
LCD-15V
CAM -8V
BL+4.5V
CAPSTAN VM
(FROM IC2001(49))
CAPSTAN SW
POWER SUPPLY BLOCK DIAGRAM
PV-L452/PV-L652