Sharp MZ-80B Service Manual page 2

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MZ-BOB
Specifications. , , , , , , , , , . , , , , , , , , , , . , . _ . . . . . . . _ ... , ... - - . . .. 1
System configuration and nomenclature of MZ-80B. , , , , ..•. , .... , . - . . .. 3
Configuration of MZ-80B _________________________ . . . . . . . . . . ... 5
Trouble shooting guide. _ ..• _ •. _ .• __ . _ •• : _ •.• ___ • • . . . . . . . . . . • .. 7
CPU board section ••..••..•.••• _ •••••
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••••••• -; •••••.••.••..•. 8
Power supply section . . . . . . '. ' .. .- •• ' ............. , , , , . , , ••••• ' ••
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Monitor TV section, . , , ... ', , .. ,o.<:":-;"~".
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c~· 20
Cassette tape recorder section. , , ~ .•... :;- .. , . , " . . . . . . . . '-~". , ... , , " -,
Printed wiring board and circuit diagram .•...•.
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Disassembled view . . . . . • . . . . . . . • . . . . . . . . . . . . . . . , . , .. , , , , , .•.
Packing method ••.. :' •••••....••••..••.••.•. : ••..••••.....•
OPTIONS and OPTIONAL PERIPHERALS
Expansion port MZ-BOEU . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . .
Universal I/O card MZ-80102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expansion graphic RAM MZ-80GMK . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floppy disk I/O card MZ-80Fl. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floppy disk MZ·80F8, Expansion floppy disk MZ·80FBK . . . . . . . . . . . . . . .
Replacement parts list, .. ' ... , ... , . . . . . . , - . ' , .... , . . . . . . . . . . .
Caution in Service
' " Maintain the safety []nd protecting ability of the apparatus
after service,
.. High voltage shall not be rised to excess specified level so as to
prevent This apparatus from the extra X·ray radiation.
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