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FO-1MK

No. 00ZFO1MKCUSME

CONTENTS

MODEL 

FO-1MK

Parts marked with "

" is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for

maintaining the safety and performance of the set.

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

SHARP CORPORATION

SERVICE MANUAL

FACSIMILE
OPTION MEMORY
UPGRADE PWB

[1] General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

[2] Installation procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

[3] Diagnostic mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

[4] Circuit schematics and parts layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

[5] Parts guide

Summary of Contents for FO-1MK

Page 1: ... for maintaining the safety and performance of the set This document has been published to be used for after sales service only The contents are subject to change without notice SHARP CORPORATION SERVICE MANUAL FACSIMILE OPTION MEMORY UPGRADE PWB 1 General description 1 2 Installation procedure 1 3 Diagnostic mode 1 4 Circuit schematics and parts layout 3 5 Parts guide ...

Page 2: ...turn on the power switch appears Then after several seconds appears P L E A S E W A I T A M O M E N T J U N M 0 0 S T A N D B Y A U T O 1 0 M O N A M 1 0 0 0 3 Diagnostic mode Successively input FUNK 9 8 7 Then appears After that press the START key Then appears Select MEMORY CLEAR using the one touch key 11 After completion of MEMORY CLEAR the following indication appears Select ROM RAM test usin...

Page 3: ...e taken replace the option memory unit and check 3 If the same error occurs again after the measures stated in item 2 were taken check the control PWB Fig 1 Fig 2 Fig 3 ROM RAM CHECK LIST M A I N R O M OK OK OK OK VER FAA0X SUM 5AA1 SUM 1C86 VER FAB0A PCU S R A M D R A M M C 0 0 F W 4 1 2 2 5 0 F 0 0 1 J 0 C P U AUG 04 1999 WED 11 19 AM FLASHMEMORY OK 28S BANKCHANGEOVER OK B A N K OK FLASHMEMORYCH...

Page 4: ...4 CNOP 35 CNOP 36 CNOP 37 CNOP 38 R124 91 R123 91 R122 91 R121 91 R120 91 A14 A13 A12 A11 A10 R119 91 R118 91 R117 91 A9 A8 A7 IC2 74HC244 IC3 74HC244 R115 91 R114 91 A5 A4 R113 91 R112 91 R111 91 A3 A2 A1 R116 91 A6 DG MA5 MA4 MA3 MA2 MA1 MA6 CNOP 39 CNOP 40 CNOP 41 CNOP 42 CNOP 43 CNOP 44 GND 0 C10 22 16 C106 0 1 C9 22 16 C105 0 1 5V A 19 0 CNOP 45 FLBK4 R100 0 A9 A8 A7 A6 A5 A4 A3 A2 A1 A19 A18...

Page 5: ...1 39 36 34 51 49 46 44 40 38 35 33 14 2 A19 A18 A17 A16 A15 A14 A13 A12 A11 D14 D13 D12 D10 D9 D8 D7 D6 D5 D4 D3 D2 A10 A9 A8 A7 A6 D11 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A4 A3 A2 DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 CE0 CE1 A5 A4 A3 A2 A1 24 28 A5 A1 A0 D15 D1 D0 RY BY BYTE 3 5 RP NC NC NC OE WE WP VCC VPP VCC VCC GND GND GND 55 54 56 15 9 37 ...

Page 6: ...FLBK1 FLBK3 DG TCS2 MWRH MRD FLBSY D15 D13 D11 D9 D7 D5 D3 D1 MA19 MA17 MA15 MA13 MA11 MA9 MA7 MA5 MA3 MA1 FLBK2 FLOPT DG 1 3 7 9 11 13 15 17 19 21 23 25 27 5 29 31 35 37 39 41 43 45 47 49 33 2 4 8 10 12 14 16 18 20 22 24 26 28 6 30 32 36 38 40 42 44 46 48 50 34 DG 5V DG FLBK4 FLBK1 FLBK3 TCS2 CNOP MWRH MRD FLBSY FLBK2 FLOPT Option memory PWB circuit 3 3 ...

Page 7: ...FO 1MK Option memory PWB parts layout Top side Option memory PWB parts layout Bottom side 6 ...

Page 8: ... IC HD74HC244 IC3 20 VHILH28F016SU BR B IC LH28F016SUT IC4 21 VHIHD74HC138F AE N B IC HD74HC138 IC6 22 VRS TV2AD000J AA C Resistor 1 10W 0Ω 5 R100 23 VRS TV2AD472J AA C Resistor 1 10W 4 7KΩ 5 R101 24 VRS TV2AD000J AA C Resistor 1 10W 0Ω 5 R102 25 VRS TV2AD472J AA C Resistor 1 10W 4 7KΩ 5 R103 26 VRS TS2AD910J AA C Resistor 1 10W 91Ω 5 R111 27 VRS TS2AD910J AA C Resistor 1 10W 91Ω 5 R112 28 VRS TS2...

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