Akai 29CTF05BS Service Manual page 42

Is some colours produced
in the B/W broadcast
reception ?
NO
Check IC 2100
& IC 851 and its
related circuit
including the
RGB input &
output line.
The picture
The picture
colour is
colour is cyan.
magenta.
Check pin 8 of
Check pin 9 of
IC 851 (G-out).
IC 851 (R-out).
B
YES
YES
Is the white balance
properly adjusted ?
NO
Readjust the white
balance.
The picture
colour is
yellow.
Check pin 7 of
IC 851 (B-out).
4 – 7
29CTF05BS