Commodore PET disk drive power-up error codes

[Dave Dunfield]

>> Does anyone have information on error-codes that are flashed by PET disk drives
>> after power-up diagnostics fail.
>> 
>> I have a drive set which after powerup, enters into a state where it flashes the
>> POWER LED alternating with both drive LEDs (together) - It repeats this flash
>> cycle exactly 6 times, then pauses, then another 6 ... forever.
>> 
>> I assume it's a diagnostic failure - Can anyone tell me what it means?
>
>UEs, it's a diagnostic code. From the 8050/8250 service manual (component 
>references will be different in other drives, I guess )
>
># flashses
>
>1  Zero Page          6532  UC1,UE1
>2  ROM $E000-$FFFF    2364  UL1
>3  ROM $C000-$DFFF    2364  UH1
>4  Not Used
>5  Zero Page          6530  UK3
>6  RAM $1000-$13FF    2114  UC4,UC5
>7  RAM $2000-$23FF    2114  UD4,UD5
>8  RAM $3000-$33FF    2114  UE4,UE5
>9  RAM $4000-$43FF    2114  UF4,UF5
>10 Cotnroller ROM     6530  UK3 or 6502 UH3

Thanks Tony!,

thats exactly what I need.
[If it is a 2114, it will be the second one I've found dead in PET hardware
 over the past month - other was was video RAM in a 4032]

Regards,
Dave
-- 
dave04a (at)    Dave Dunfield
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