28
29A-SX1
29A-SX5
29A-SX8
NoYes
Yes
Yes
Yes
Yes
No
No
Turn on colour control. Does
colour appeart?
TROUBLE SHOOTING TABLE (Continued)
NO SPECIFIC COLOUR
D
Is only RF signal's colour abnormal?
Set colour
control.
Turn on colour system forced
switch. Does colour appear?
Fix cotrol to
coloured
system.
Check IC5400,
Q402 and their
peripherals.
No
Check D1603
and its
peripherals.
Check IC801.
Check TU200,
Q200, Q201, Q203,
IC401 and their
peripherals.
Yes
Yes
Yes
No
No
Is chroma input level of IC801
pin (13) proper?
Is FBP signal waveforms at pin
(25) of IC801 proper?
Are signal waveforms at TP901
and TP902 proper?
Are waveforms at pins (51) and
(52) of IC801 proper?
Is SCP signal waveform at pin (2) of
IC801 proper?
No
NO COLOUR
Check IC801.
Check IC800,
IC802, IC803 and
their peripherals.
No
PAL, SECAM,
NTSC4.43:
Check X800, pin
(8) of IC801 and
their peripherals.
NTSC3.58:
Check X801, pin
(10) of IC801 and
their peripherals.
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