Panasonic PT-52LCX66-K Service Manual page 29

AC stop detection circuit
POWER
FULL-WAVE
FACTOR
RECTIFIER
CORRECTION
IC1002, IC1003,
IC1405, IC1407
AC VOLTAGE
DETECT
POWER P.C.B.
Over voltage/current detection circuit
POWER
FULL-WAVE
RELAY
FACTOR
RECTIFIER
CORRECTION
SW
PFC
ON/OFF
T1302
DRIVE
TRANS.
MAIN SUB
RELAY RELAY
-ON/OFF -ON/OFF
Abnormal Temperature (Thermal fuse)
POWER
CONTROL
CIRCUIT 2
POWER P.C.B.
2
Q1601
DRIVE
IC1933, IC1934,
IC1935
1
LOGIC
2
T1401
PR1305
(400V)
PR1304
13
PR1301,1302
Q1303
15
MAIN
1 15
TRANS.
Q1304
15
3
13
T1405
LOGIC
CURRENT
SENSOR
Q1305
TRANS.
(Over (Over current)
current)
PWM2
PWM1
(Over voltage)
POWER P.C.B.
AC SW ON (H)
8 8
29
IC6002
4 RESET 2 STBY+3.3V
IC6006
2
4
2 1
Normal
MAIN P.C.B.
AC STOP(L)
1
2
AC STOP(H)
R1330
(Over voltage)
D1320 D1321
10
10
11
11
12
12
8 8
7 7
PFC OVER
VOLTAGE
IC1404, Q1807
DETECT (L)
OVER VOLTAGE DET
20 20
19 19
6 6
7 7
THERMAL FUSE
CN1520-2
CN1520-1
(117 C/ 243 F)
3 3
PT-52LCX66-K / PT-56LCX16-K / PT-61LCX66-K
IC6001
(MAIN
MICROCONTROLLER)
AC STOP(L)
89
SOS
POWER
CONTROL
CIRCUIT 2
+17V
AMP +18V
200V(TO BALLAST)
+30V
+9V
POWER
CONTROL
CIRCUIT 1
POWER
CONTROL
CIRCUIT 2
IC6001
(MAIN MICROCONTROLLER)
AC SW ON (H)
26
MAIN P.C.B.