Service manual

CA-27
Flowcharts
Start
1. No Power
Plug receiver
into AC source.
Replace
FX3401.
Replace
FX3402.
Replace
TX3401.
Replace ICX3400,
QX3401, DX3406,
DX3407, DX3408.
Replace
ICX3402.
Yes
No
No
No
No
No No
No
Yes
Yes
Yes
Yes Yes
Yes
Yes
Replace
IC6000.
Check Q3404,
Q3402.
Replace
ICX3401.
Replace
ICX2200.
Refer to shutdown
troubleshooting.
No
No
No
No
Yes
Yes
Yes
Yes
Is AC
connected?
Does FX3401
conduct?
Is B+ present
at CX3420?
Does FX3402
conduct?
Is QX3401
shorted?
Is pin 3,
ICX3400
switching?
Is +18VSB
present across
CX3424?
Is +5VSB
present across
C3426?
Does pin 32,
IC6000 emit a
DC pulse at
startup?
Is +18VSW
present across
CX3430?
Is +9VSW
present across
C3429?
Is Horz & Vert
drive present
on pins 32, 24
of ICX2200?