cartridge slots sony hb700 broken ?

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Door sergem

Expert (94)

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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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Van Retroman

Expert (85)

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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 ?

Van [D-Tail]

Ascended (8232)

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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

Van Retroman

Expert (85)

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10-07-2004, 22:38

Checked the cable allready and it´s definitely ok Sad

Van Sonic_aka_T

Enlighted (4130)

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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)

Van Retroman

Expert (85)

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11-07-2004, 15:55

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

Any chip failure that can cause this ?

Van Repair-Bas

Paragon (1075)

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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

Van Retroman

Expert (85)

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11-07-2004, 17:48

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

Van Repair-Bas

Paragon (1075)

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11-07-2004, 18:10

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

Van Retroman

Expert (85)

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11-07-2004, 20:50

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

Van [D-Tail]

Ascended (8232)

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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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