Build Your Own Arcade Controls Forum

Main => Monitor/Video Forum => Topic started by: brad808 on July 12, 2016, 08:36:12 pm

Title: D9200 Horizontal Collapse
Post by: brad808 on July 12, 2016, 08:36:12 pm

Have a WG D9202 I'm repairing for someone. Got the monitor and it wasn't powering on, would just go right into HV shutdown. Had a whole whack of stuff out.

Replaced:

Yoke connectors
Q418
Q413
Q414
R462
R854

Now I have power but I'm left with Horizontal collapse (straight vertical line). Looking at troubleshooting guide it says: Q413, R462, R424, IC404,
R415, Q418 R462 (OPEN), R424 (SHORT)


Any other suggestions?
vr402 has good ground,R462 - 1 ohm, R415 - 22ohms, Can't seem to find R424 anywhere... any hints?


IC404 Reads:
Pin 1 - 3.75 VDC
Pin 2 - 0.64 VDC
Pin 3 - 0.25 VDC
Pin 4 - 2.04 VDC
Pin 5 - 0 VDC
Pin 6 - 0.3 VDC
Pin 7 - 20.65 VDC
Pin 8 - 5 VDC

Title: Re: D9200 Horizontal Collapse
Post by: brad808 on July 12, 2016, 09:47:53 pm

Quote from: brad808 on July 12, 2016, 08:36:12 pm

Can't seem to find R424 anywhere... any hints?

Finally found R424, it checks good at 50kohms