Panasonic PT52LCX66 - MULTI MEDIA DISPLAY Service Manual page 26

PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
AC stop detection circuit
Over voltage/current detection circuit
FULL-WAVE
RELAY
RECTIFIER
MAIN SUB
RELAY RELAY
-ON/OFF -ON/OFF
Abnormal Temperature (Thermal fuse)
POWER
CONTROL
CIRCUIT 2
POWER
FULL-WAVE
FACTOR
RECTIFIER
CORRECTION
Q1601
IC1002, IC1003, IC1933, IC1934,
IC1405, IC1407 IC1935
AC VOLTAGE
LOGIC
DETECT
POWER P.C.B.
PR1305
(400V)
POWER
FACTOR
CORRECTION
Q1303
Q1304
SW
T1405
PFC
CURRENT
ON/OFF
SENSOR
TRANS.
(Over
current)
T1302
DRIVE
TRANS.
AC SW ON (H)
8
POWER P.C.B.
IC6002
4 RESET
IC6006
2
2 2 1
DRIVE
AC STOP(L)
1 1
2 2
AC STOP(H)
T1401
PR1304 R1330
13
PR1301,1302
15
MAIN
1 15
TRANS.
15
3
13
LOGIC
D1320 D1321
Q1305
(Over current)
PWM2
PWM1
IC1404, Q1807
(Over voltage)
OVER VOLTAGE DET
POWER P.C.B.
8 CN1520-2
CN1520-1
3
26
IC6001
2 STBY+3.3V
(MAIN
MICROCONTROLLER)
AC STOP(L)
4 89
Normal
SOS
MAIN P.C.B.
POWER
CONTROL
CIRCUIT 2
(Over voltage)
10
10
11
11
POWER
CONTROL
12
12
CIRCUIT 1
8 8
7 7
PFC OVER
VOLTAGE
DETECT (L)
20 20
POWER
CONTROL
19 19
CIRCUIT 2
6 6
7 7
THERMAL FUSE
(117 C/ 243 F)
IC6001
(MAIN MICROCONTROLLER)
AC SW ON (H)
3 26
MAIN P.C.B.
+17V
AMP +18V
200V(TO BALLAST)
+30V
+9V