Panasonic PT52LCX66 - MULTI MEDIA DISPLAY Service Manual page 24

PT-52LCX66 / PT-56LCX66 / PT-61LCX66 / PT-52LCX16 / PT-56LCX16
3) Abnormal voltage (DT+5V line) detection circuit
IC6001 (MAIN MICROCONTROLLER)
4) IC5001 (GC4PRO) communication error detection circuit
IC5000
(MAIN VIDEO SIGNAL PROCESS)
IC5801
(HDMI INTERFACE)
IC5001
(DIGITAL VIDEO SIGNAL PROCESS)
5, 6) Temperature Sensor error (shorted, open, or abnormal) detection circuit
IC6001 (MAIN MICROCONTROLLER)
I2C SERIAL DATA
I2C SERIAL CLOCK
7) Clogged air filter detection circuit
IC6001 (MAIN MICROCONTROLLER)
I2C SERIAL DATA
I2C SERIAL CLOCK
MAIN P.C.B.
Normal
SOS
+5V SENS
108
SOS: 0V on DT+5V line
I2C SERIAL CLOCK0
82
I2C SERIAL DATA0
81
I2C SERIAL CLOCK0
28
I2C SERIAL DATA0
27
I2C SERIAL CLOCK0
A23
I2C SERIAL DATA0
B22
117 19
116 18
MAIN P.C.B.
61 19
61 18
DT+5V
MAIN P.C.B.
acknowledge
SOS: No acknowledge reply
MAIN P.C.B.
IC2301 (LCD MICROCONTROLLER)
I2C SERIAL
TEMPERATURE
DATA
19 35
18 36
I2C SERIAL
CLOCK
LCD DRIVE P.C.B.
+9V
IC2301 (LCD MICROCONTROLLER)
I2C SERIAL
DATA
FILTER ERROR
19 35
DETECTION
18 36 I2C SERIAL
CLOCK
LCD DRIVE P.C.B.
24
IC1102
+5V
2 1
REG
IC6001 (MAIN MICROCONTROLLER)
I2C SERIAL CLOCK0
84
I2C SERIAL DATA0
85
64 2 2
DATA1
1 1
THERMISTOR 2
IC2702
2 DRIVE 4
SOS
Normal
IC2705
3
62 1
2
+9V
R2821
TEMPERATURE
SENSOR
P.C.B.
FAN1
CN2701-1
CN2701-2
CN2701-3