|
|
|
#1
08-29-2015, 07:47 AM
|
|||
|
|||
|
GE 25GT320 Manufactured June 1988 CTC130A
Another curbside rescue. Looks like my 84 rca but the cabinet has simulated wood grain rather than silver/gray. Cord was cut so i recplaced it to test. Tries to come on but nothing. From the click of the power button, theres a quick flash on the screen and static discharge from the crt that usually makes your hair stand out when your close to the face of it. Other than that, nothing. I'm wondering what the issue is. No high voltage, flyback?
Last edited by pac.attack76; 07-14-2016 at 02:47 PM. 
|
|
#2
08-29-2015, 05:03 PM
|
||||
|
||||
|
Sounds like it may be going into shutdown. If you have a variac, try to power it up at about 90V and see if it stays on. If it does, you likely have a voltage regulator issue.
__________________
http://www.youtube.com/user/radiotvphononut
|
|
#3
08-30-2015, 08:00 AM
|
|||
|
|||
|
Quote:
|
|
#4
08-31-2015, 07:19 AM
|
|||
|
|||
|
This set uses the same cabinet and chassis as my ColorTrak FMR620WR! Use this partial schematic to diagnose the power supply. Make sure to resolder/reinforce R417 & R506. Open the tuner module and take some pics.
__________________
I'm in need of service manuals for the following: Magnavox 19C315-CC, Emerson ECT-1300A (TM0110E), Sears 401.50300900 Last edited by colectorad; 08-31-2015 at 07:26 AM.
|
|
#5
08-31-2015, 08:30 AM
|
|||
|
|||
|
Yeah I noticed that. Cool, I'll do that. Thanks.
|
| Audiokarma |
|
#6
08-31-2015, 10:28 AM
|
||||
|
||||
|
The tuner pkgs on these get tons of cold joints
where the cables come in. I dont remember this symptom but maybe the on/off line has cold solder. So resolder first. Also found on a different CTC130B for shutdow prob CR406 Zener diode 175424 sub ECG5029A Since this is not the exact manual I cant guarantee this is the right thing ! 73 Zeno 
|
|
#7
09-01-2015, 05:51 PM
|
|||
|
|||
|
I'll have to dig it back out and check it. Got it in the warehouse with the rest of my boob tubes.
|
|
#8
09-01-2015, 07:01 PM
|
||||
|
||||
|
CTC130 Sym/cure file.
__________________
Brian USN RET (Avionics / Cal) CET- Consumer Repair and Avionics ('88) "Capacitor Cosmetologist since '79" When fuses go to work, they quit! Last edited by Findm-Keepm; 12-13-2016 at 05:48 PM.
|
 |
|
|
Linear Mode
