Grbgemen
Active member
So i picked up a Solar Quest a few weeks back. Seller plugged it in and i heard the start up explosion but nothing on the monitor. Got it home and had no sounds on power up. Found out breakers were being blown. Replaced all three voltage regulators and it started to play blind.
I also got a very dim picture after the regulators were replaced. I turned up the brightness POT to max and the picture did get a hair brighter but not much. I could faintly read backwards "Solar Quest" and "Insert Coin." Tried to play a game with the mirror in but it was too dim to see anything.
Later that evening, my cousin stopped by and i went to show him that i had a picture now. The game booted with random vectors flying around the screen. They move in the same patterns but they are just random lines. I decided that i would go ahead and follow the FAQ and replace the recommended parts.
So far i have done the following:
Any ideas on why the screen is not very bright? Will report back later...
I also got a very dim picture after the regulators were replaced. I turned up the brightness POT to max and the picture did get a hair brighter but not much. I could faintly read backwards "Solar Quest" and "Insert Coin." Tried to play a game with the mirror in but it was too dim to see anything.
Later that evening, my cousin stopped by and i went to show him that i had a picture now. The game booted with random vectors flying around the screen. They move in the same patterns but they are just random lines. I decided that i would go ahead and follow the FAQ and replace the recommended parts.
So far i have done the following:
- Replaced resistors R118, R119 R218 and R219 with 47 Ohm, 5W resistors
- Replace the tantalum capacitors with an electrolytic -- 33uF @ 50V
replacement value. C4; C10; C23; C105; (cant find cap C211) - Replace all 1N4003 diodes with 1N4004
- Replace the deflection transistors with the 2N3716/2N3792
- Replaced a few other misc. caps
- Reflowed all molex header points and any others that looked cracked
Any ideas on why the screen is not very bright? Will report back later...