M
Morris
Guest
I was given this non-working power supply so I decided to repair it.
I replaced R4 2.2ohm 2watt , a power transistor egc 130 and IC U1
LM723cn.
Then it seemed to work. I never tested the high current useage as the
meter
seemed so coarse that it wasn't worth checking till I got a finer
meter.
Weeks later I noticed the precaution beeper quit working and found
transistor Q201 has exploded and I can not read the numbers on it.
Any Help would be appreciated...
Have A Nice Day
Thanks ...Morris
I replaced R4 2.2ohm 2watt , a power transistor egc 130 and IC U1
LM723cn.
Then it seemed to work. I never tested the high current useage as the
meter
seemed so coarse that it wasn't worth checking till I got a finer
meter.
Weeks later I noticed the precaution beeper quit working and found
transistor Q201 has exploded and I can not read the numbers on it.
Any Help would be appreciated...
Have A Nice Day
Thanks ...Morris