Repair cps1 sound board A

[ramosribeiro2000]

bought a cps1, and vaio with sound problem, with failure or incomplete. looking more closely at ppaca mother A, I saw that the cc20 component is missing. could this be the cause of the sound failure? can i just replace the component?

 

[ramosribeiro2000]

bought a cps1, and vaio with sound problem, with failure or incomplete. looking more closely at ppaca mother A, I saw that the cc20 component is missing. could this be the cause of the sound failure? can i just replace the component?

I bought a cps1 and it came with a sound problem, faulty or incomplete. looking more closely at motherboard A, I saw that the cc20 component is missing. Could this be the cause of the sound failure? can i just replace the component?

 

[evilsim]

i bought a knights of the round from jap years ago with this same cap missing and i replaced it, then i got sound.
make sure you get the correct tantalum cap - and fingers crossed yours works to !

 

[ramosribeiro2000]

Ok, thanks

 

[ramosribeiro2000]

i bought a knights of the round from jap years ago with this same cap missing and i replaced it, then i got sound.
make sure you get the correct tantalum cap - and fingers crossed yours works to !

did not work. I could see that the sound of kicks and powers are absent

 

[ramosribeiro2000]

finally after a lot of work i discovered the defect in the audio that was causing problems in the sound of kicks, voices etc. after changing oki chip, z80, all capacitors, 4 ci 5218a, ci yamaha ym2151, chip ym3012 among others, I found that the defect was simply resistor R47 (2.2k). problem solved and sound working perfectly.