12
TROUBLESHOOTING
FLASH(IC507 & IC508)
Check WE(Pin 11), RST(Pin 12),
CE(Pin 26) & OE(Pin 27)
NO
Replace IC507 & IC508
SDRAM(IC505 &IC506)
Check WE(Pin 16), CS(Pin 19) &
CLK(Pin 38)
NO
Replace IC505 & IC506
HDD
Check Pin 1 of P603
YES
IC511 & IC512
Check Pin 1 &Pin 24
NO
Check Soldering
Replace IC511 & IC512
YES
Check IC513
Check Soldering of other parts
except IC
NO
PVR RESET(Pin 31) = MAIN
RESET(Pin 29) AND ST20(Pin 32)
RESET HDD(Pin 40) = PVR
RESET(Pin 31) AND
HDD RESET(Pin 44)
NO
Replace IC513
YES
YES
NO
Check whether HDD is bad
NO
Replace HDD
NO
Check soldering
Check IDE 80 PIN CABLE
Summary of Contents for DHD-4000D
Page 30: ...29 BLOCK DIAGRAM VIDEO BLOCK ...
Page 32: ...31 BLOCK DIAGRAM TUNER BLOCK ...
Page 40: ...39 SCHEMATIC DIAGRAM ...
Page 44: ...43 SCHEMATIC DIAGRAM SCHEMATIC DIAGRAM ...
Page 45: ...44 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW ...
Page 49: ......
Page 66: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...