JVC HR-J282EU Service Manual page 27

3. Y/C CIRCUIT
(3) When the C(Color) signal doesn't appear on the screen in PB Mode,
Is 5.2VT/5.4VA applied to the
IC301 Pins 24, 42, 55, 72, 91.
YES
Is the Color Rotary signal
applied to the IC301
Pin 70?
YES
Is Color Rotary "H"
about 3.4V?
YES
Does the Color signal
appear at the IC301
Pin 25 ?
YES
Replace the IC301.
NO
NO
NO
NO
Does the X301(4.43MHZ)
oscillate?
Does the Color signal
appear at the IC301 Pin 21?
Replace the IC301.
3-14
Check the line of the 5.2VT/
5.4VA Line. (Power Circuit)
Check the Color Rotary
Circuit. (IC501 pin 99 )
Check the Color Rotary
level. (Check the R303)
NO
NO
YES
Replace the X301.
Check the Color Pass.