Panasonic TH-C42HD18A Service Manual page 30

9.2. Block Diagram (2/5)
SC SCAN DRIVE
SC-BOARD
ENERGY RECOVERY
SOS DETECT
(LED (LED (LED 6 TIMES) 6 TIMES) 6 TIMES)
SU SCAN OUT (UPPER)
SOS6_SC1
SC-BOARD
FLOATING PART
SOS DETECT
(LED (LED (LED 7 TIMES) 7 TIMES) 7 TIMES)
SOS7_SC2
SCAN CONTROL
CONTROL
SCAN
PULSE
SU41 SC41
DRIVER
SUSTAIN
SU11 PULSE
SD11
SCAN
PULSE
SD42 SC42
SCAN
DRIVER
SD46 SC46
VOLTAGE
GENERATOR
SD SCAN OUT (LOWER)
TH-C42HD18A
Block Diagram (2/5)
SC2
VSUS
SC20 A20
+5V(P)
+15V(P)
Main Block(Tuner side)
A31
C11
C1 DATA DRIVER (RIGHT)
Vda
C10
DATA DATA DATA DATA
DRIVER DRIVER DRIVER DRIVER
P POWER SUPPLY
PS SOS
(LED (LED (LED 4 TIME) 4 TIME) 4 TIME)
P-BOARD
+5V(P) SOS DETECT
POWER MICOM
A25 P25
+15V(P)
ON/OFF CONTROL
Vda
PROCESS
+15V(P) VOLTAGE
RECTIFIER
+5V(P)
PROCESS
VOLTAGE
CONTROL
COLD COLD COLD HOT HOT HOT
F+15V STANDBY
VOLTAGE
POWER
RECTIFIER
+5V(STB)
FACTOR
CONTROL
A7
A32 STANDBY
VOLTAGE
CONTROL RECTIFIER
LINE
RECTIFIER
FILTER
LINE
RELAY
FILTER
F+15V
P6
+15V(SND)
P7 +5V(STB)
P9
C21
DATA DRIVER (LEFT)
C2
+5V(P)
+5V(P)
SOS8_SS SOS8_SS
SUSTAIN CONTROL C23 SUSTAIN CONTROL
Vda Vda
C20
DATA DATA DATA DATA
DRIVER DRIVER DRIVER DRIVER
30
P2
SS SUSTAIN DRIVE
VSUS
P11 SS11 VSUS
SUSTAIN
VOLTAGE
SS-BOARD
RECTIFIER
SOS DETECT
(LED (LED (LED 8 TIME) 8 TIME) 8 TIME)
ADDRESS
VOLTAGE
SUSTAIN (VE)
VOLTAGE
CONTROL
SUSTAIN
PULSE
ERASE
PULSE
MAIN SW2
MAIN SW2
MAIN SW1 MAIN SW1
P12 SS12
+15V(P) +15V(P)
Vda
SS23 SS34
AC CORD
TH-C42HD18A
Block Diagram (2/5)