Atari CX - Page 56

Black Acreen Troubleshooting (Cont.)
1 Yes
Replace
Y1.
Q
Are the following
voltages on the pins
of the. transistor:
Qr 42
Base 3SV 3*5V No Replace
J
Are voltages
Emitter 4.3V 4.3V
I I
transistor(s). correct?
Collector 1.2V
1V
I b
I .
B
Does unit No Check for open,
l shorted or wrong '
function? value component in
L clock circuit.
Yes
1 Repair or Replace 1
If you are servicing a unit containing
PCB CA020 108, chip designators have
been changed from
U to A.
CX 5200 Field Service Manual
Yes
I