| Size |
Model |
Chassis |
Symptom |
Problem Description |
Fix |
| 34 | D34W135 | ATC221 | Audio | No audio in DVD mode | remove and reseat plug on BT960 |
| 40 | D40GW10 YX1 | ATC221 | Convergence | no video, no convergence, Convergence power supply dead. | TW19 (on the convergence amp board) |
| 40 | D40W135D YX1 | ATC221 | System Control | Remote not working | RP613 not installed from factory, install RP613 |
| 52 | D52130 JX1(A) | ATC221A | No Startup | Starts with Gemstar removed | Replace Gemstar module |
| 52 | D52W20 | ATC221 | Picture Tube | Cycles on and off | IB201 (green kine driver) |
| 52 | D52W20 | ATC221 | Power Supply | Standby reg, IPO20 not running | IP020 |
| 52 | D52W20 YX1 | ATC221 | Convergence | NCycles, Convergence power supply is not operational | FP221 & FP251 (off LL008 flyback) |
| | ATC221 | ATC221 | Video | no video, no convergence | TW19 (on convergence board) |
| | | ATC221 | Video | no video or convergence | TW19 (on the convergence amp board) |
| | | ATC221 | Remote | remote control not working intermittently | RP613 |
| | | ATC221 | Power | Set would cycle on/off | IB201 |
| | | ATC221 | Power | Dead, no standby voltage | IP020 |
| | | ATC221 | Video | Congergence not functional | FP251, FP221 |
| | | ATC221 | Video | Reception comes and goes | replace both tuners |
