Philips DVP3350V/01 Service Manual page 29

VCR ELECTRICAL TROUBLESHOOTING GUIDE
4-3. When the C(Color) signal doesn't appear on the screen in PB Mode,
When the C(Color) signal
doesn't appear on the
screen in PB Mode,
YES
Is 5.0VT/
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
Check the line of the 5.0VT/
5.3VA Line. (Power Circuit)
NO
Check the Color Rotary
Circuit. (IC501 Pin98 )
NO
Check the Color Rotary
level. (Check the R303)
Does the
NO
X301(4.43MHZ)
oscillate?
Does the
Color signal
appear at the IC301
Pin21?
Replace the IC301.
3-12
NO
YES
NO
YES
Replace the X301.
Check the Color Pass.