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Thread: SM1 looks unresponsive

  1. #1
    Lazy SNK Employee
    pnauts's Avatar
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    SM1 looks unresponsive

    Hi,

    I have a Z80 error with smk diagnostic rom with this message: "SM1 looks unresponsive".
    I changed the YM2610, the Z80, the MVS onboard SM1 Rom, there is no broken traces.
    I have the Z80 error with the original MVS Eprom too.
    It remain as easy change, the SRAM 6116, do you know if this chip is damaged it would result in such a message ?
    thanks.

  2. #2
    Lazy SNK Employee
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    I have low volume on headphone (in fact, only on Left channel, recap needed) but still this Z80 error.

  3. #3
    Lazy SNK Employee
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    RAM 6116 changed and same result.
    In Brief:
    "Z80 error" but sound during eyecatcher logo works and in game sounds works.

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