29H-FG5A
Yes
Blown out
Check the power circuit consisting of IC701, IC702, T701 and its related parts.
Replace the Fuse.
Is the Fuse again blown out?
Check F3700.Check F4701.
No18-2
NO LED LIGHTCheck 3V output from pin 22 of IC 2001 and its related parts.
Normal
main unit ?
NoYes
Does STBY+5V appear at pin 1 P1001
Check the power circuit at the front unit consisting of IC4700, IC4702, IC4701, D4707 and its related parts.
TROUBLE SHOOTING TABLE (Continued)
Abnormal
Check the 14V, 120V and 210V line from the main PWB side.
(14V,120 V, 210 V line).
Normal
Check CRT connector (KY), (H) bias
Check R,G,B input and output of IC 851.
18-1
GREENGREEN
RED
TROUBLE SHOOTING TABLEREDCheck the power circuit consisting of IC701, IC702, T701 and its related parts. Also check the horizontal out circuit Q604 and its related parts.
LED COLOUR ?Power on by R/C.
YesNo
Does horizontal circuit momentary oscillate?
NO RASTER
Check protector circuit and pin 106 & 107 (waveform no.3 & 4) of IC 2100. Also check the waveform no.7 of IC501 at pin 4 and its related parts.
18 |