JVC HR-XV2EX Service Manual page 19

(3) When the C(Color) signal doesn't appear on the screen in PB Mode,
Is 5.2VT/5.3VA applied to the
IC301 Pins22, 47, 60, 84?
YES
Does the Color signal
appear at the IC301
Pin57 ?
YES
Replace the IC301.
NO
NO
Does the X301(4.43MHZ)
oscillate?
Does the Color signal
appear at the IC301 Pin55?
Replace the IC301.
3-13
Check the line of the 5.2VT/
5.3VA Line. (Power Circuit)
NO
NO
YES
Replace the X301.
Check the Color Pass.