|
|
| No Picture / No Sound | ||
|
|
|
|
| Is any OSD displayed? |
| No |
|
|
| OK |
|
|
|
|
| |
OK | Check IC01 pin37,42,43,44 |
|
| Check receiving system in MENU | |
| (IK, R,G,B) |
|
|
| & execute Auto - Program. |
| No |
|
|
| Does the auto - Program |
|
|
|
|
| Operate properly. |
| Check / Replace |
|
|
| OK |
| IC01 |
|
|
|
|
|
|
|
|
| Store on manual - program MENU |
| Check | No |
|
| Check 5V, 33V & IIC Bus Line |
| 5V, 33V & |
|
| ||
|
|
|
| ||
| IIC Bus Line |
|
|
| Of Tuner. |
|
|
|
|
| OK |
| Check / Replace | No |
|
| Is the CVBS signal OK. |
|
|
|
| ||
| IC01, Tuner |
|
|
| (IC01 pin10 or 22) |
|
|
|
|
| OK |
Check | OK | Check IK |
| No | Check R,G,B signal |
|
| ||||
|
|
| |||
CVBS signal Line | Signal at |
|
| At IC01, pin42,43,44 | |
& IC01 |
| IC01 pin37 |
|
|
|
|
| (similar to CBVS) |
| OK | |
|
|
|
|
| |
|
|
|
|
| Check / Replace |
|
|
|
|
| CPT Board component |
OK
Go to
No Sound / Picture OK
- 20 -
