SHARP 29HFD1F
Manual de Servicio

29H-FD1F 29H-FG1F

TROUBLE SHOOTING TABLE (Continued)

RASTER NO LED LIGHT

LED COLOUR ? Check F4701. F3700.

GREEN

RED

Power on by R/C. (14V,120 V, 210 V line).

GREEN Check CRT connector (KY), (H) bias

Normal Blown out

RED

Normal Abnormal

Does horizontal circuit Replace the Fuse. momentary oscillate? R,G,B Check the 14V, No of IC 851. line from the main PWB side. Yes

Is the Fuse again blown out? input output 120V and 210V

Yes No Does STBY+5V appear at pin 1 P1001 Check the power circuit
main unit ? consisting of IC701, IC702,

18
parts.

protector Check the power T701 and its related parts. No Yes and pin 106 circuit consisting of & 107 (waveform IC701, IC702,

T701 and its the power Check 3V output no.3 & 4) of IC

2100. check related parts. Also circuit at the front from pin 22 of IC waveform no.7 check the unit consisting of 2001 and its of IC501 at pin 4 horizontal out IC4700, IC4702, related parts.

circuit Q604 IC4701, D4707 and its related and its related parts.

18-1 18-2