wxforecaster
Member
I am trying my hands at a first ever PCB repair, and was hoping that with the help of existing material and folks here I could bring this board back to life and gain some nice experience from the matter. This was a spare PCB that I had pondered getting Double DK'd at some point.
Initially, I heard the analog sound mix upon firing it up, but got nothing but a scrambled mess afterwards on screen. I found both the H and V pots were broken away from the board. I soldered them back and have a nice stable picture. The game plays fine, but there are three what I would call "major" issues.
1.) The analog sounds (walking, jump, falling, etc...) work perfectly and are the correct volume, but there is no music, coin up sound, etc.. However, I say this with a caveat that I thought I could hear the music very very faintly (basically inaudible) in a couple places. (7K)?
2.) There is no red on screen, although once in a great while I've seen the red "flicker" in for a fraction of a second. (Note the Sanyo monitor was recently recapped and is in perfect working order with other Nintendo boards)
3.) Almost all of the motion objects have a solid rectangular block associated with them that is of the same color as the primary object color. (bad 7C, 7D, 7E or 7F?... tough to tell with the red color mising)
I do have a probe, but admittedlty have no idea how to use the darn thing. I do have schematics for the game. I imagine there are others here like me that would love to learn more!
Evan
Initially, I heard the analog sound mix upon firing it up, but got nothing but a scrambled mess afterwards on screen. I found both the H and V pots were broken away from the board. I soldered them back and have a nice stable picture. The game plays fine, but there are three what I would call "major" issues.
1.) The analog sounds (walking, jump, falling, etc...) work perfectly and are the correct volume, but there is no music, coin up sound, etc.. However, I say this with a caveat that I thought I could hear the music very very faintly (basically inaudible) in a couple places. (7K)?
2.) There is no red on screen, although once in a great while I've seen the red "flicker" in for a fraction of a second. (Note the Sanyo monitor was recently recapped and is in perfect working order with other Nintendo boards)
3.) Almost all of the motion objects have a solid rectangular block associated with them that is of the same color as the primary object color. (bad 7C, 7D, 7E or 7F?... tough to tell with the red color mising)
I do have a probe, but admittedlty have no idea how to use the darn thing. I do have schematics for the game. I imagine there are others here like me that would love to learn more!
Evan
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