Commodore 1541-II Instrukcja Obsługi Pobierz pdf (Strona 18)

displays a 21 read error.

Check Drive Motor.

Fails the performance test and

displays a 27 read error.

Check stop adjust.

Passes performance test to

track 18 then displays 21 read

error.

Check read/write head.

Passes the performance test but

will not load certain programs.

Check stepp

RESISTANCE CHECKS

32 ohms end to centertap

64 ohms end to end

Motor coil = 17 ohms

Tach coil = 175 ohms at rest

Tach coil = 135 - 190 ohms in motion

R/W end to end = 32.4 ohms

R/w end to centertap = 16.3 ohms

Erase coil end to end = 10.5 ohms

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 32 33

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Commodore 1541-II Instrukcja Obsługi Strona 18