BBK DK1020S - Page 115

Symptom Causes Symptom Causes
Screen dark Panel: display screen not good No screen display Decode board: L232 not good
No spectrum Decode board: L231 not good
Noise when playing
CD
Decode board: U201 not good
(MT1389)
Down when beating
machine
Decode board: XS201 not good
Decode board: U214 not good
(FLASH)
Power not on AV :V101 joint welding
Power amplifier board: N2 not good
(SN74LVC2G04DB)
Light flashes
Power board: U503 not good
(TL431)
OPEN button has no
function
Panel: R118 lack of element No progressive output
Decode board: U201 not good
(MT1389)
No sound for
subwoofer
Power amplifier board: R59 joint
welding
Down when reading
disc
Decode board: U211 not good
(SDRAM)
No sound when
power on for the first
time
Power amplifier board: R83 false
welding
Door not open, picture
mosaic
Decode board: U211 not good
(SDRAM)
DVD has no
character
Decode board: U214 not good
(FLASH)
Display more when
pressing SWITCH
button
Panel: R125 not good
Down when reading
disc
Decode board: U211 not good
(SDRAM)
Noise when playing
DVD