| Model |
Chassis |
Symptom |
Problem Description |
Fix |
| F25649 TX51 |
CTC203 |
System Control |
Won't turn on, Found loose connection at Q13301 |
Resolder Q13301 |
| F27649 |
CTC203 |
On Screen Display |
No OSD, crack on PCB between Q13301(c) to Q13302(b) |
Jumper trace |
| 31GT740YX3 CA2 |
CTC203CA2 |
Power Supply |
12VRSWE supply is missing on J13103(13), Gemstar |
Jumper crack between JW12111 & JC13113 |
| F27648TX41 AA4 |
CTC203AA4 |
Audio |
Unit had good music or stereo but the voice was low. |
Replace C11618 |
| F27648TX41 AA4 |
CTC203AA4 |
Horizontal |
Bad Picture, the cathodes on the CRT were running between 180-190 vdc, |
Remove solder splatter between JW14117 (in the hvr return circuit) and L14401 |
| F27649TX41 AA4 |
CTC203AA4 |
Power Supply |
Dead set, U14501 shorted to ground |
Replace CR14701 |
| F27628TX41 AA4 |
CTC203AA4 |
System Control |
No Startup |
Remove, clean and reseat terminals on J13104 |
| F27318TX41 AA4 |
CTC203AA4 |
Video |
No picture, intermittent, CRT socket not making good connections |
Replace CRT socket |
| F25649TX51 AA5 |
CTC203AA5 |
OSD |
No horizontal pulse going to pin 7 of J13103 |
Jumper open trace going from q13302 to pin 7 J13103 |
| F27668TX51 AA9 |
CTC203AA9 |
Power Supply |
Buzzing from Power Supply, one leg of R14104 soldered (shorted) to cathode of CR14101 |
Remove short |
| F27442TX1 AD |
CTC203AD |
Horizontal |
Repeat failure of the horizontal output xfmr |
Resolder Cold solder connection at Y14101 |
| F27442TX1 AD |
CTC203AD |
Power Supply |
Pulses intermittently, Q14115 dips from 5V to 4.5V |
Replace leaky CR14115 |
| F25432TX1 AD |
CTC203AD |
Video |
No video, no audio, has deflection and OSD. |
Replace U12101 |
| F25432TX1 AD |
CTC203AD |
Video |
No video, has audio, CF12301 shorted |
Replace CF12301 |
| F25432TX1 AD |
CTC203AD |
Video |
Dim video,cathode voltages high |
Remove solder splash on trace to U12101 |
| G27669YX1 AX |
CTC203AX |
Audio |
Dead, won't turn on |
Replace shorted C11615 |
| G27646YX1 AX |
CTC203AX |
Tuning System |
Snowy Channels |
Replace C17113 |
| F36668YX1 CA |
CTC203CA |
Video |
No Video |
Jumpered open trace from U18101 to L18108 |
| F32669YX50 CA5 |
CTC203CA5 |
Audio |
No Audio |
Replace CR11505 |
| F32669YX50 CA5 |
CTC203CA5 |
horizontal |
Shuts down |
Replace CR14902 |
| F32669YX50 CA5 |
CTC203CA5 |
horizontal |
Shuts down |
Replace R14909 |
| F32649YX50 CA5 |
CTC203CA5 |
Video |
Blue too high |
Replace Q12703, Q12704, R12724 |
| 31GT720YX3 CH3 |
CTC203CH3 |
Video |
No Video |
Replace R12317 |
| - |
CTC203 |
Dead |
Completely Dead |
CTC203 power supply kit |
| - |
CTC203 |
Video |
No Video |
Q14302 |
| - |
CTC203 |
Video |
No Vertical, intermittent |
L12705= #175409 |
| - |
CTC203 |
Video |
No Vertical, flat horiztontal line |
Replace Vertical= TDA8172 and CR14701 |
| - |
CTC203 |
Dead |
Dead, blows new Q14101 |
R14107= 43 Ohms, Q14101, Q13101 |
| - |
CTC203 |
Dead |
Dead |
U14101= 223653, CR14105= 198589, CR14117= 244224 |
| - |
CTC203 |
Dead |
Dead |
Bad solder in Gemstar module at U26403 pins 23-26 |
| - |
CTC203 |
Intermittent |
Hard to turn on, channels change randomly |
Remove solder bridge on power switch to ground SW13201 |
| - |
CTC203AA5 |
Dead |
No power up |
CR4117= 244224 |
| F27615 |
CTC203AX |
Dead |
Dead |
replace Q14101, Q14103, Q14102, check surrounding res/caps |
| - |
CTC203AX |
Audio |
No Audio |
U11900, U11901 both= TDA7267 |
