5. Horizontal Output Circuit
MODE | B+ Voltage |
|
|
VGA | 60Vdc | Trouble in Horizontal |
|
Super VGA | 72Vdc |
| |
output circuit |
| ||
54KHz | 110Vdc | (No Raster |
|
|
| ||
|
| Is the | No |
|
| B+line voltage | |
|
| Trouble in 50V | |
|
| over 50V? |
|
|
| Yes |
|
| 3V | Is the | No |
|
| waveform of IC501 | |
| 0V | Trouble in IC501 | |
| normal? |
| |
|
|
| |
|
| Yes |
|
50V |
| Is the Collector | No |
0V |
| wave form of | Trouble in Q505 |
| Q504 normal? |
| |
|
| Yes |
|
70V |
| Is the Drain | No |
|
| waveform of | Trouble in Q506 |
0V |
| Q507 normal? |
|
|
| Yes |
|
|
| Trouble in Q505 and |
|
|
| its ambient circuit. |
|
|
| 19 |
|
