| Subject | Text |
| Panasonic | Since you don't gave a model number, it is hard to be specific but you are probably correct in suspe |
| schematic for NEC TV F2998 | hello every body
i need schematic for
my old NEC tv
model : F2998
for repair vertical part
IC |
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| Thanks | [quote:1ba5fe305c="minnie"]REPLACE IC451 LA7838, C562 35V470, C454 25V1000[/quote:1ba5fe305c]
Tha |
| LA7838 Vertical Deflection driver IC.
Sounds like our puppy.
Thanks - will replace it, and post ba |
| The Vertical Chip...LA--7838 VERTICAL HOLD Chip... on the main Board..
The TV is a Mitsh |
| REPLACE IC451 LA7838, C562 35V470, C454 25V1000 |
| Look through thesev and see if a plausable match exists | JVC AV2000 N/A NO SOUND OR PICTURE - BUZZING SOUND FROM SWITCHING XFRM. - HIGH VOLTAGE BEINGS TO COM |
| Re: Mitsubishi | When set had "Vert Hold" problem (Picture/Screen ROLLING?), could you make out any video?
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| Replace IC 401 (LA7838) and C406. 100 @ 35v. |
| Re: 707 | [quote:c2ed309d00="SParker"]My board must be different. On mine, 707 is a small diode. It is not the |
| Thin, about 12 pins, screw thru it, on a heat sink Mitts start usually with a la, ie la7838, la7845 |
| I'd start by replacing the vertical IC 601 LA7838. |