IBM 3277 Troubleshooting Manual page 33

• Tum power off.
• Remove right side
cover.
• Remove feature cordis)
A2, 82, M2, N2.
• Turn power on .
Yes
Sheet 2 Sheet 2
• Turn po_r off.
• Reploce feoture cordh)
A2, 82, M2, N2.
• Change analog cord
(Mod 1,5.3.3.3
Mod 2,5.3.3 .• )
• Power on and odjus t
(5.2.1).
~m
4-1. Dispbtv Stftion Troubleshooting Diegrems (ShMt 4 of 29)
Meaoure following
voltage at HVPS (011/
PS2) ,.~
10
de
return, (Oiag 7-14).
Meaoure following
voltages with YOM on
15Y scale. Reference
negotive leod to de
return.
Measure voltage on
voltage distribution
board terminol 11.
(Oiog 7-11)
distribution boord .
• Verify repoir.
Remove push-on connec:tar
Ifroln
supply pin
3 (IN) and
1 ___
voltage at
connector on wi ...
• Change analog ecwd.
(Mod I, 5.3.3.3
Mod
2, 5.3.3.-4) .
• Power on and odj ..
t
(5.2.1).
Me ...... e voltage on
orc-wppression board
terminol E8. (Oiag
7-\5)
S ..... 3