HP 182C - Troubleshooting Tips; Power Supply; Troubleshooting

Model
182C
Table
8-7.
High
Voltage Power
Supply
Troubleshooting
Tips
Symptom Suggested Checks
]
No
high voltage.
*Most common fault.
"Check oscillator power supply fuse located
on H.V.
Regulator Assembly-
Check oscillator components: transistor, H.V.
transformer, diodes, etc.
Voltage too high.
Check
H.V.
Adjust.
Check regulator components and feedback loop.
"Typical
case
is increased resistance in regulator
feedback loop.
Voltage
too
low. Check H.V. Adjust.
Check regulator components and feedback loop
Typical case is decreased resistance in regulator feedback
loop or CRT
loading
supply.
NOTE
Refer
to
CRT Intensity Troubleshooting
Tips
for additional checks.