BBK DK1020S - Page 114

Symptom Causes Symptom Causes
Decode board: U201 not good
(MT1389)
No sound for tuning
Power amplifier board: XS402
rosin joint for flat cable holder
Decode board: U302 not good
(D5954)
No sound for tuning
surround right
Power amplifier board: C92 not
good
Power amplifier board: N14 not good
(TAS5112)
No sound for tuning
surround left
Power board: R525 quality
change
No output for Cr AV: XP206 joint welding
Component picture
mosaic when beating
machine
Decode board: XS201 not good
No output for Cb
Decode board: U201 not good
(MT1389)
Component picture
mosaic
Decode board: U201 not good
(MT1389)
AV: L116 not good
No output for
component
AV: VD103 not good
AV: L104 shedding welding
Component color
distortion
AV: VD100 reversely welding
AV: VD101 not good RGB has no character Decode board: 1389 rosin joint
Decode board: U201 not good
(MT1389)
RGB has no conversion Decode board: 1389 not good
Power amplifier board: N14 not good
(TAS5112)
RGB has no character AV: XP401 shedding welding
Decode board: XS206 not good SCART distortion AV: 107 lack of element
S-video terminal not good SCART color distortion AV: 102 incorrectly used
S color distortion AV: R105 not good
SCART disturbance
when beating machine
Decode board: U201 not good
(MT1389)
Component
disturbance
Decode board: 1389 not good
Decode board: XS208 flat cable not
good
Knob button has no
function
Decode board: 1389 not good
Panel: potentiometer not good Knob has no function
Decode board: XS201 shedding
welding
PLAY button has no
function
Panel: light touch switch not good
Frame not good Decode board: R240 open circuit
Decode board: XS302 shedding
welding
Decode board: R329 not good
Door not open Frame not good Disc not in Decode board: C343 short circuit
Door open/close
slowly
Frame not good
Screen dark Panel: display screen not good
Decode board: U214 not good
(FLASH)
Display more Panel: N102 (S0793) joint welding Decode board: L230 not good
Panel: display screen not good Panel flat cable joint welding
Panel: display screen not good
Decode board: U214 not good
(FLASH)
No sound for tuning
Door not open
Display less
No screen display
No output for Cr
No color for S
Knob out of control
Door open
automatically