LG LH-C6230P Service Manual page 20

(3) When the C(Color) signal doesn t appear on the screen in PB Mode,
Is 5.2VT/5.3VA applied to the
IC301 Pins24, 42, 55, 72, 91.
YES
Is the Color Rotary signal
applied to the IC301
Pin70?
YES
Is Color Rotary H
about 3.4V?
YES
Does the Color signal
appear at the IC301
Pin25 ?
YES
Replace the IC301.
NO
NO
NO
NO
Does the X301(4.43MHZ)
oscillate?
Does the Color signal
appear at the IC301 Pin21?
YES
Replace the IC301.
- 3-10 -
Check the line of the 5.2VT/
5.3VA Line. (Power Circuit)
Check the Color Rotary
Circuit. (IC501 Pin99 )
Check the Color Rotary
level. (Check the R303)
NO
NO
Check the Color Pass.
Replace the X301.