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TROUBLE SHOOTING
AC CORD PLUG
IC430,IC601 +5V POWER ONLY
IC430 RESET
X4300,X4301 CLOCK
IC430 ACTIVE
IC601 COMMUNICATION
POWER SUPPLY ; STANDBY mode
IC430 ACTIVE / P-RELAY (for UK,XE) ; HIGH / P-CON ; LOW
±12V,±7V,DVD-POWER ; OFF / FIL,-30V ; ON
STANDBY LED LIGHT
POWER KEY PRESS
DVD FUNCTION
P-COM ; HIGH
DVD-POWER ; HIGH
STANDBY LED ; OFF
IC430 STANDBY DATA WAIT
±12V,±7V ; ON
IC450,IC451 COMMUNICATION
INITIALIZE ADAC (IC870)
RESET LOADER
READ,WRITE DATA IN EEPROM (IC801)
IC800 START COMMUNICATION WITH IC430
FROM MPU STANDBY DATA SEND
IC430 STANDBY DATA RCVD
IC430 VFD DATA RCVD
IC430 VFD DATA SEND
IC601 VFD DATA RCVD
DISPLAY OPENNING
START CONTROL OF LOADER
PICK INITIALIZE SPINDLE ROTATE
DISC Y/N
N
IVFD INDICATE
"NO DISC"
IC430
SYSCON
IC410
X4301
SYS-CLK
IC411
X4300
SUB-CLK
IC241
IC450
FUNCTION
DS601
IC451
VOLUME
IC800
IC601
VFD-DRV
IC818
IC870
6CH-DAC
IC820
IC801
EEPROM
IC821
NG
IC430 VDD,RESET,OSC CONFIRM
IC430 COMMUNICATION CONFIRM
P-CON,FIL,-30V CONFIRM
NG
LED PERIPHERAL CIRCUIT CONFIRM
FM,AM,VIDEO1,VIDEO2 (VIDEO,TV)
POWER KEY CONFIRM
NG
IC601 COMMUNICATION CONFIRM
LED PERIPHERAL CIRCUIT CONFIRM
PROTECT CIRCUIT CONFIRM
IC462,IC472,IC482,IC483 CONFIRM
P-CON
±12V,±7V,P-CON CONFIRM
DVD-POWER CONFIRM (IC410,IC411 etc)
NG
VDD,CLOCK CONFIRM
IC800,IC820 PERIPHERAL CIRCUIT CONFIRM
NG
COMMUNICATION LINE CONFIRM
REMOCON NG
IC430 & DS601 PERIPHERAL CONFIRM
REMOCON OK
IC430 PERIPHERAL CONFIRM
*1
NG
IC601 & IC430 PERIPHERAL CONFIRM
-30V FILAMENT VOLTAGE CONFIRM
COMMUNICATION LINE CONFIRM
NG
IC800,IC818,IC820,IC821 BUS-LINE CONFIRM
NG
LOADER CONFIRM
COMMUNICATION LINE CONFIRM (FFC)
Y
VFD INDICATE
"READING"
PLAYBACK MODE
- 6 -
REG.
REG.
TU-PLL
IR
DVD-MPU
FLASH
MPEG
SDROM
P-COM ; HIGH /
DVD-POWER ; LOW
STANDBY LED ; OFF
IC430 STANDBY DATA WAIT
±12V,±7V ; ON
VIDEO1, VIDEO2 (VIDEO,TV)
IC450,IC451 COMMUNICATION
IC430 VFD DATA SEND
IC601 VFD DATA RCVD
VFD INDICATE "VIDEO1" or "VIDEO2"
POWER KEY CONFIRM
NG
IC601 COMMUNICATION CONFIRM
LED PERIPHERAL CIRCUIT CONFIRM
PROTECT CIRCUIT CONFIRM
IC462,IC472,IC482,IC483 CONFIRM
±12V,±7V,P-CON CONFIRM
TUNER
IC450,IC451,IC241 COMMUNICATION
IC430 VFD DATA SEND
IC601 VFD DATA RCVD
NG
NG
*1
*1
VFD INDICATE "FM" or "AM"____k(M)Hz
- 7 -
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