Commodore C128D Diagnostic Manual Download

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Summary of Contents for C128D

Page 1: ...DIAGNOSTIC MANUAL 1571 C128D VERSION 1 2 JANUARY 1988 PN 314855 03...

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Page 3: ...l not be liable for any consequential or incidental damages in connection with the use of the information con tained herein The listing of any available replace ment part herein does not constitute in...

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Page 5: ...agnostic Test More detailed information is contained inside the manual Disk Name DIAGNOSTIC V 1 2 PGM 1 SYSTEM CONFIG 1571 C128D Configuration Setup Options PGM 2 1571 MENU C128 1571 C128 Diagnostic T...

Page 6: ...Test Binary Data PGM 33 1571 ALIGN BIN2 1571 Alignment Repair Test Binary Data PGM 34 128D SYSTEM BINI C128D System Test Binary Data PGM 35 128D SYSTEM BIN2 C128D System Test Binary Data PGM 36 128D...

Page 7: ...NT REPAIR 1 14 thru 1 34 H SECTION TWO COMPUTER DIAGNOSTIC AND TEST PROGRAMS C128 C128D 80 COLUMN TEST C128 C128D C64 MODE TEST C128 C128D RAM EXPANSION TEST Page 2 1 Page 2 2 Page 2 3 thru 2 5 H SECT...

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Page 9: ...NED TO SET SYSTEM TEST CONFIGURATION CONFIGURATION SETUP DEFAULT OPTIONS Load From Device Number 8 Run Tests Device Number 8 System Type To Be Tested 1571 These settings may be changed utilizing the f...

Page 10: ...STOP THE TEST FROM EXECUTING 1571 C128D Press Press Press 1 Press 2 Press 3 Press 4 Press 5 Press 6 Press 7 Press 8 Press 0 DIAGNOSTIC MENU VERSION 1 2 Set Device Under Test Load C128D 1571 Diagnostic...

Page 11: ...either Device Number 8 or 9 Selected Device Number is Displayed SYSTEM TEST OPTION TWO ZERO STOP SENSOR TEST Insert a Formatted Write Protected Diskette Press SPACE Start Testing Begins Zero Stop Sen...

Page 12: ...layed Press RETURN Return To Menu Displays System Test Main Menu SYSTEM TEST OPTION FOUR ZERO STOP BUMP TEST Insert a Formatted Write Protected Diskette Press SPACE Start Testing Begins Zero Stop Bump...

Page 13: ...DEFECTIVE TEST DISKETTE MIS ADJUSTED ZERO STOP OR DRIVE ALIGNMENT DEFECTIVE DRIVE ASSEMBLY DEFECTIVE READ WRITE CONTROL LOGIC The GCR 1541 Slow Mode is checked by Writing Data to Tracks 5 15 25 35 Re...

Page 14: ...9 Second Drive Setto Device Number 9 Press S Skip Compatibility Test COMPATIBILITY TEST OPTION ONE SECOND DRIVE DEVICE 8 COMPATIBILITY TEST OPTION TWO SECOND DRIVE DEVICE 9 These options allow the Dat...

Page 15: ...SKIP COMPATIBILITY TEST This option allows the Compatibility Section of the Read Write Test to be skipped if a second drive is not available SYSTEM TEST RESULTS System Test Pass Fail Status Compatibil...

Page 16: ...SS Press C Select Device Number 8 or 9 Press X Preliminary Test 2 PASS Press M Modified Tests Press 0 Read Test Results Press SPACE Load Diagnostic Menu NOTE IF A PRINTER IS CONNECTED TEST RESULTS WIL...

Page 17: ...or Test Soft Error Test Option One should be run SOFT ERROR TEST OPTION TWO SET DEVICE NUMBER UNDER TEST WHEN DOWNLOADING IS COMPLETE AND THE SOFT ERROR TEST OPTION MENU IS DISPLAYED THE TEST WILL RUN...

Page 18: ...ted the diskette will be formatted by the test If N o is selected the test will start without formatting If the N ew Option was Previously Selected Y es Must be Selected here 5 TRACK SEQUENCE TO BE Th...

Page 19: ...Number of Errors encountered during the test This Count is Incriminated Only Once for each error regardless of the Number Of Retries Necessary to Recover the Error If this Count Reaches 1024 the Test...

Page 20: ...UM ERROR The Calculated Checksum of a 256 Byte Data Block did not match the Actual Checksum Read from the diskette VERIFY ERROR AFTER WRITE The Data just Written to a sector of the diskette when Read...

Page 21: ...More Than One 1 Retry or More Than Twenty 20 Errors Recovered in the First Retry is normally a sign of a Defective Drive Mechanism Or Marginal Components Maximum Retries Ten 10 before an error is con...

Page 22: ...TIC OPTION TWO START DIAGNOSTIC TEST ROM FAILURES WILL OCCUR IF OUT DATED ROMS ARE INSTALLED VALID ROMS 1571 PART NUMBER 310654 03 310654 05 C128D PART NUMBER 318047 01 This option Downloads the Diagn...

Page 23: ...FLASHES WD1770 Ull 7 FLASHES 5710 FDC U107 ONCE A SUCCESSFUL DOWNLOAD IS COMPLETE THE LOGIC DIAGNOSTIC WILL OPERATE COMPLETELY INTERNAL TO THE DRIVE AND THE C128 1571 ONLY NO LONGER NEED BE CONNECTED...

Page 24: ...ress 8 Press 9 Select Device Number 8 or 9 Drive Alignment Zero Stop Test Adjust Stepper Motor Slew Stepper Motor Logic Data Bus Write Check Drive Motor Logic Head Select Format Side Select Logic Load...

Page 25: ...he unit 5 1571 ONLY Remove the Drive Faceplate and Set it Beside the Unit 6 1571 ONLY Remove the Four 4 Power Supply Mounting Screws Remove the Power Supply and Set it Beside the Unit 7 NEWTRONICS Rem...

Page 26: ...EPPER MOTOR CONTROL LOGIC Press SPACE Step To Track 17 RADIAL ALIGNMENT TEST OPTION MENU Press Step Head IN Press Step Head OUT Press 0 Align Head LOWER Press 1 Align Head UPPER Press RETURN Return To...

Page 27: ...n 3 Press SPACE Step Head to Track 13 CAT EYES SHOULD BE VISIBLE AND WITHIN 10 AMPLITUDE OF EACH OTHER The Peak To Peak Level MUST be at least 200 MV 4 CAT EYES ARE NOT VISIBLE Press Step the Read Wri...

Page 28: ...ead Alignment The 48 TPI Alignment Diskette must be Turned Now 6 Press SPACE to Step the Head to Track 13 7 If the CAT EYES Are Not Within 10 Amplitude of each other Loosen the two 2 Stepper Motor Mou...

Page 29: ...Stop in 1541 Mode by bumping the Read Write Head 5 Times against the Zero Stop and reading a Pre Written Mark on the diskette FOR MOST ACCURATE TESTING THE FORMATTED DISKETTE BEING USED SHOULD BE FORM...

Page 30: ...8D Diagnostic Menu Load Alignment Repair Test 10 Select Zero Stop Test Adjust Option from Diagnostic Menu 1571 C128D ZERO STOP ADJUSTMENT PROCEDURES DO NOT ADJUST THE STOP UNTIL RADIAL ALIGNMENT IS CO...

Page 31: ...sm FAILURE DEFECTIVE DRIVE ASSEMBLY STEPPER MOTOR DEFECTIVE STEPPER MOTOR CONTROL LOGIC ALIGNMENT REPAIR TEST OPTION FIVE STEPPER MOTOR LOGIC STEPPER MOTOR LOGIC TEST OPTIONS Press Step Head IN Press...

Page 32: ...ADVANCED CHART 1 1 0 U7 27 28 5 VDC SEE ADVANCED CHART 1 1 1 U7 _ 24 25 5 VDC SEE ADVANCED CHART 1 1 1 U7 27 28 0 VDC SEE ADVANCED CHART 1 SIGNALS FROM BASIC CHART 2 MUST BE MEASURED WHILE ONE OF THE...

Page 33: ...U8 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 U4 10 U4 11 U13 3 U7 23 U7 30 U7 29 U7 31 U7 25 28 U7 24 27 0 VDC 5 VDC 0 VDC 1 VDC 1 VDC 0 VDC 0 VDC 5 VDC 0 VDC U4 U13 U17 U4 U13 U14 U8 U13 U6 U6 U7 U13 U7 U6...

Page 34: ...ED CHART 2 INCORRECT STEPPER MOTOR SIGNAL FROM BASIC CHART 2 CHECK IC EXPECTED INCORRECT SIGNAL PINS SIGNAL PROBABLE FAILURE U13 4 0 VDC LEVEL WITH 5 VDC LEVELPBOESf U D13 UQ22 U16 13 0 VDC LEVEL WITH...

Page 35: ...C SEE ADVANCED CHART 1 1 0 U109 12 15 1 VDC SEE ADVANCED CHART 1 1 1 U109 _ 12 15 5 VDC SEE ADVANCED CHART 1 1 1 U109 13 14 1 VDC SEE ADVANCED CHART 1 SIGNALS FROM BASIC CHART 2 MUST BE MEASURED WHILE...

Page 36: ...111 0 1 0111 8 5 VDC 0111 O110 0 1 0110 5 5 VDC O H O 0109 0 1 0110 12 0 VDC O H O 0109 0 1 0113 12 0 VDC 0113 0109 0 1 0113 10 5 VDC 0113 0109 0 1 0109 12 14 1 VDC 0109 BAD DRIVE 0 1 0109 13 15 5 VDC...

Page 37: ...i n c o r r e c t STEPPER MOTOR SIGNAL FROM BASIC CHART 2 CHECK IC PINS EXPECTED 1 INCORRECT SIGNAL SIGNAL 1 PROBABLE FAILURE Ulll 3 U110 13 U109 11 5 VDC LEVEL WITH 0 VDC LEVEL PULSE 0 VDC LEVEL WIT...

Page 38: ...ment Repair Test Main Menu Enter HEX Data FFO Input a two 2 Character HEX Code 00 FF Followed by the Side Selection 0 or 1 Example FFO Entered HEX FF on Side 0 The Data Bus Write Test verifies proper...

Page 39: ...HEX 55 DATA DATA BUS DISPLAY CHECK IC PINS EXPECTED SIGNAL SCOPE MODE INCORRECT SIGNAL PROBABLE FAILURE 11111111 U4 2 3 4 5 HIGH DC U4 U6 6 7 8 9 11111111 U6 37 38 SERIAL DATA DC U6 U14 11111111 U7 9...

Page 40: ...ATA DATA BUS 1 CHECK IC DISPLAY PINS EXPECTED SIGNAL SCOPE MODE INCORRECT SIGNAL PROBABLE FAILURE 01100110 01100110 01100110 01100110 01100110 01100110 U4 2 5 6 9 U4 3 4 7 8 U6 37 38 U7 9 10 U7 6 U7 8...

Page 41: ...L PROBABLE FAILURE 11111111 11111111 11111111 11111111 U104 2 3 4 5 6 7 8 9 U105 35 U113 8 Ulll 6 HIGH SERIAL DATA SERIAL DATA SERIAL DATA DC DC DC DC U104 U105 U105 U113 Ulll U113 Ulll Ulll U108 DATA...

Page 42: ...E MODE INCORRECT SIGNAL PROBABLE FAILURE 01100110 01100110 01100110 01100110 01100110 U104 2 5 6 9 U104 3 4 7 8 U105 35 U113 8 Ulll 6 LOW HIGH SERIAL DATA SERIAL DATA SERIAL DATA DC DC DC DC DC U104 U...

Page 43: ...LE FAILURE OFF U4 12 LOW DC U4 U16 OFF U16 10 HIGH DC U16 BAD DRIVE ON U4 12 HIGH DC U4 U16 ON U16 10 LOW DC U16 BAD DRIVE I C128D DRIVE MOTOR CONTROL LOGIC CHART DRIVE MOTOR DISPLAY CHECK IC PINS EXP...

Page 44: ...L MODE PROBABLE FAILURE 0 U9 4 LOW DC U9 U8 U17 0 U8 6 HIGH DC U8 Q2 0 U7 4 LOW DC Q2 U7 1 1 1 1 U9 U17 U8 U7 4 4 12 4 HIGH LOW HIGH LOW DC DC DC DC U9 U17 U8 Q3 U8 U8 Q3 U7 U17 C128D SIDE SELECT LOGI...

Page 45: ...ested Block Data R W Write Writes Current Data Being Read or Written Current Operation Read Write Being Executed Displayed Data to Displayed Address Block Copy Copies Data Reads Writes at Displayed Ad...

Page 46: ...the C128 or C128D When C64 Mode Test is run the system under test is switched to the C64 Mode and the test is Auto Executed The rows of squares displayed during Test Run Time represent ICs with the Nu...

Page 47: ...a BD BAD message is displayed in the Defective IC Location If No Failure is detected an OK is displayed The Number Displayed in the Upper Left Hand Corner of the screen is the Test Version Number and...

Page 48: ...RAM Since the Test Data is first placed in this area and Transferred to the RAM Expander for testing and back again it is necessary to insure that the Host RAM functions properly The Host RAM is Test...

Page 49: ...TERNAL ROM TEST Although the External ROM Location U18 of Expansion PCB is not currently used the RAM Expansion Test includes a test to Detect Failures on any ROM which may be used in the future The R...

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Page 51: ...ANGE DEVICE NUMBER OPTION If Y es is selected Input the Original Device Number Input the New Device Number Turn Power OFF to all Drives except the one to be changed Press SPACE Change Device Number If...

Page 52: ...OPY SELECTION OPTION The Selected Files will be displayed as File Size File Name File Type Press Y es if you wish to copy the displayed file Press N o if you wish to skip the displayed file Press Y es...

Page 53: ...File being copied Source File Type Type of Source File being copied SEQ Sequential REL Relative PGM Program OSR User Destination File Size Number of Blocks copied If Source File Size Destination File...

Page 54: ...ER OPTIONS Input Source Disk Unit Source Drive Device Number Data Diskette Must be Inserted in the Source Drive Input Destination Disk Unit Destination Drive Device Number Formatted Diskette Must be I...

Page 55: ...e Name Name of File for Selection Source File Type Type of File for Selection SEQ Sequential REL Relative PGM Program USR User File Copy 2 will begin FILE COPY The files being copied are displayed as...

Page 56: ...sert Version 1 2 Diagnostic Diskette Press 8 Load From Device 8 Loads Version 1 2 Diagnostic Menu From Device Number 8 Press 9 Load From Device 9 Loads Version 1 2 Diagnostic Menu From Device Number 9...

Page 57: ...DISPLAY Disk Name Name Assigned to the Diskette Format Speed Fast or Slow ID Code ID Assigned to the Diskette Device Number Device Number of Formatting Drive Disk Status Good Bad Press RETURN Return T...

Page 58: ...1 2 Diagnostic Menu From Device Number 8 Press 9 Load From Device 9 Loads Version 1 2 Diagnostic Menu From Device Number 9 Press Return Return To Menu Displays File Scratcher Main Menu FILE SCRATCHER...

Page 59: ...File to be Recovered If a File Name is entered the File will be displayed along with Track and Sector where the File is Stored with a Recovery Option If Selected Characters are entered followed by al...

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Page 61: ...e Disk Name COMMODORE with an ID BM in Drive 0 of Device Number 8 HEADER COMMODORE DO IBM Press RETURN AT THE ARE YOU SURE PROMPT Press Y Press RETURN Example To FORMAT a Diskette with the Disk Name C...

Page 62: ...mple To LOAD a Program called COMMODORE from Drive 0 on Device Number 9 DLOAD COMMODORE DO U9 Press RETURN COMMAND FUNCTION COMMAND FORMAT I RENAME a File to Another Name RENAME Dx Old Name to New Nam...

Page 63: ...8 15 PRINT 1 10 Press RETURN CLOSE 1 Press RETURN Example To INITIALIZE Drive 0 of Device Number 9 OPEN 1 9 15 PRINT 1 10 Press RETURN CLOSE 1 Press RETURN H DIRECTORY Read Directory of the Diskette...

Page 64: ...Always 0 for 1571 C128D dn Device Number of Drive Optional if Device 8 4 t Example To SCRATCH a File named COMMODORE from Drive 0 of Device Number 8 SCRATCH COMMODORE DO Press RETURN AT THE ARE YOU S...

Page 65: ...t the attached form and return it to COMMODORE BUSINESS MACHINES ATTN BRUCE MORTENSON 1200 WILSON DRIVE WEST CHESTER PA 19380 All Reported Errors will be validated and if the Program is changed the Up...

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Page 67: ...________________ Telephone Technician Name Error Found In ___ Test ___ Manual Name of Test ___________________________________ Test System ___ 1571 ___ C128 ___ C128D Please give as much information a...

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Page 69: ...return it to COMMODORE BUSINESS MACHINES ATTN BRUCE MORTENSON 1200 WILSON DRIVE WEST CHESTER PA 19380 All Reported Errors will be validated and if the Program is changed the Updated Program will be p...

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