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29L-FG1L
CHAPTER 4.
E
Market
29L-FG1L
Service Manual
29L-FG1L
TV
TROUBLE SHOOTING FLOWCHART
[1] TROUBLE SHOOTING FLOWCHART
Yes
Check protector
circuit and pin 106 &
107 (waveform no.3 &
4) of IC 2100. Also
check the waveform
no.7 of IC501 at pin 5
and its related parts.
NO RASTER
LED COLOUR ?
RED
Power on by R/C
RED
Does horizontal
circuit momentary
oscillate ?
Check 3.3 V & 1.8 V
supplies of IC 2100.
Check oscillation of
crystal X2001.
Check CRT connector
GREEN
(KY), (H) bias.
(Heater voltage,120 V,
210 V line)
Normal
Check R,G,B
input and output
of IC 851.
No
4 – 1
Abnormal
Check the
Heater voltage,
120V and 210V
line from the
main PWB side.
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