cartridge slots sony hb700 broken ?

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Por sergem

Expert (94)

imagem de sergem

10-07-2004, 14:48

Hi everyone,

My problem is that I have a Sony Hb700f with 2 cartridgeslots but none seems to work, I have tried several cartridges that well will work on other msx systems.
My question: is that a well know problem with this computer (or any msx) and can it be fixed because I really need those slots...

thanks in advance for replies

greets
serge

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Por Retroman

Expert (85)

imagem de Retroman

10-07-2004, 16:22

Hmmm, I got the very same problem here with my Sony HB700D ..... anyone got an idea if this can be fixed ?

Por [D-Tail]

Ascended (8239)

imagem de [D-Tail]

10-07-2004, 20:16

Erhm... maybe you should try peeking if the ribbon cable ain't broken or disconnected? Without spoiling the F700, of course Smile

Por Retroman

Expert (85)

imagem de Retroman

10-07-2004, 22:38

Checked the cable allready and it´s definitely ok Sad

Por Sonic_aka_T

Enlighted (4130)

imagem de Sonic_aka_T

11-07-2004, 14:24

Did you visually check it? O did you check if each cable is indeed ok? It doesn't happen often, but I have had ribbon cables in which only one wire failed without much of a visual indication. I don't know the Sony model, but some cartridge connectors have solder joints on the print that might fail. Have you checked those? (if applicable)

Por Retroman

Expert (85)

imagem de Retroman

11-07-2004, 15:55

I checked the cables electronicaly, so they are definitely ok !!!

Any chip failure that can cause this ?

Por Repair-Bas

Paragon (1089)

imagem de Repair-Bas

11-07-2004, 16:43

there or three chips with the 74lLS367
these are in the neigherhood of the slotconnectors.
replace this chips (about 3 euro) and it is fixed

Por Retroman

Expert (85)

imagem de Retroman

11-07-2004, 17:48

I´ll try that, should have some of them in spare here ..... thx !

Por Repair-Bas

Paragon (1089)

imagem de Repair-Bas

11-07-2004, 18:10

good luck with it.
watch out, the print is very week. Solder not hotter as 350 degrees

Por Retroman

Expert (85)

imagem de Retroman

11-07-2004, 20:50

No problem, I´ve allready soldered many Computers and none of them died because of that Wink Big smile

Por [D-Tail]

Ascended (8239)

imagem de [D-Tail]

11-07-2004, 22:59

Good luck doesn't last forever Tongue, but I assume you know what you're doing...

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