Commodore Plus 4 Uživatelský manuál

SERVICE MANUALMODEL PLUS 4 COMPUTEROCT. 1984PN-314001-04Commodore Business Machines, Inc.1200 Wilson Drive, West Chester, Pennsylvania 19380 U.S.A.Com

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M1 SCHEMATIC ON PAGE 11PINCONFIGURATIONVSSCSQ)CS1RESRXCXTL 1XTLQ)RTSCTSTXDDTRRXDRSQ)RS1128227326425524-623-7655122-821-920-1019-1118-1217-1316-1415-R/

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U3, US, U19 PINOUTS ON PAGE 8NCDINWERASA(JJA2A1VCCWERASCASPINCONFIGURATION116215-314-413-512-611-710-89COMMODORE APPROVED VENDORACCESSPOWERPART SOURCE

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CONTENTSRF MODULATOR 251844 LAYOUT .251844 SCHEMATIC••• • ••••••• • •• • •• • • ••• ••• ••• • • • ••• ••• • • • • •••• • • •• •• • • • •• •• ••• ••• •

Issue 6, 1984 : Computer 3.. commodoreModel: PLUS 4©1980 COMMODORE BUSINESS MACHINES INC.Troubleshooting AidesNOTE: Visual inspection is critical in t

PLUS 4 Troubleshooting Page 22) BAD VIDEO - Scrolling lines on screen - Randomblocks on screen - Blurred displayA) Check JI-J6 for shorts to ground or

PLUS 4 TroubleshootingPage 35) NO COLOR or BAD COLORA) Check UlfrequencyO.K. If..pin 14 for 14.31818 MHz withcounternot :1)Check solder joints of CTIa

PLUS4TroubleshootingPage 48)KEYBOARD FAILURESA) CheckO.K.•B) CheckO.K.•C) CheckO.K.•D) CheckO.K.•pins on ribbon cable for good connectionfor shorts -

Issue 7, 1984computer 4.,. commodore••Model: C16, PLUS 4©1980 COMMODORE BUSINESS MACHINES INC.LINE DEFINITIONSAO to A15AECATNBABRESETCl HIGH, Cl LOWC2

I[commodoreIssue 6, 1985 : Computer 1Model: C-64, C-16, Plus 4SCHEMATICS FOR C-64, C-16, PLUS 4© 1980 COMMODORE BUSINESS MACHINES INC.These computers

PLUS 4 PRODUCT SPECIFICATIONMEMORY64K RAM. 60K RAM User accessible for BASIC programs.ROM32K ROM Standard (includes operating system and BASIC interpr

PLUS 4 PRODUCT SPECIFICATION (Continued)FEATURESBuilt-in extended BASIC 3.5 - over 75 commands. Built-in Machine Language monitor - over 12commar.ds.

PARTS LISTPLUS/4TOP CASE ASSYTop CaseKeyboard,67Key, KKR-INameplateShield Clip, RShield Clip, FC 251453-01C251501-01C 251655-01C 251855-01C 251856-01B

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PARTS LIST - PLUS/4 PCB ASSEMBLY #310163-01PLEASE NOTE:Commodore part numbers are provided for reference only and do not indicate theavailability of p

PARTS LIST - PLUS/4PCB ASSEMBLY #310163-01 (Continued)CAPACITORS (Continued)MISCELLANEOUS (Continued)C12C13C14C15-C16C17-C18C19C20C21C22C23C24-C26C27C