Sharp FO-90A Service Manual

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FO-90AAR
No. 00ZFO90AARSME
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications ............................................ 1-1
[2] Operation panel......................................... 1-2
[3] Refer to the service manual of FO-70AAR.
[4] Refer to the service manual of FO-70AAR.
[5] Quick reference guide ............................... 1-9
CHAPTER 2. ADJUSTMENTS
[1] Adjustments............................................... 2-1
[2] Diagnostics and service soft switch .......... 2-2
[3] Troubleshooting...................................... 2-19
[4] Error code table....................................... 2-20
CHAPTER 3. MECHANISM BLOCKS
[1] Refer to the service manual of FO-70AAR.
[2] Refer to the service manual of FO-70AAR.
CHAPTER 4. DIAGRAMS
[1] Block diagram ............................................4-1
[2] Wiring diagram .......................................... 4-2
[3] Point-to-point diagram ............................... 4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description...................................... 5-1
[2] Circuit description of control PWB..............5-2
[3] Circuit description of TEL/LIU PWB .......... 5-9
[4] Circuit description of
power supply PWB ............................5-12
[5] Circuit description of CIS unit ...................5-12
CHAPTER 6. CIRCUIT SCHEMATICS AND
PARTS LAYOUT
[1] Control PWB circuit ................................... 6-1
[2] TEL/LIU PWB circuit ................................. 6-9
[3] Power supply PWB circuit ...................... 6-13
[4] Operation panel PWB circuit ................... 6-15
CHAPTER 7. OPERATION FLOWCHART
[1] Refer to the service manual of FO-70AAR.
[2] Refer to the service manual of FO-70AAR.
CHAPTER 8. OTHERS
[1] Refer to the service manual of FO-70AAR.
[2] Refer to the service manual of FO-70AAR.
PARTS GUIDE
CONTENTS
FACSIMILE
MODEL FO-90A
Parts marked with " " are 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
Chapters 1, 3, 7 and 8 of this manual are omitted because they are partly common to the FO-70AAR/
50AAR. Please refer to previous service manual (00ZFO70AARSME) for these chapters.
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Summary of Contents

Page 1 - SERVICE MANUAL

FO-90AARNo. 00ZFO90AARSMECHAPTER 1. GENERAL DESCRIPTION[1] Specifications ... 1-1[2] Operation panel...

Page 2

FO-90AAR3. 12. Entry data receiveThis mode is used to receive the registered data from the other machineand to make your machine register the received

Page 3 - [1] Specifications

FO-90AAR1 Protect from echo No Yes 02 Forced 4800bps reception Yes No 03 Footer Print Yes No 04 Length limitation of copy/send/receive No limit Copy/S

Page 4 - [2] Operation panel

FO-90AAR1 Auto gain control(MODEM) Enable Disable 12 End Buzzer Yes No 13 Disconnect the line when DIS is received in No Yes 1RX mode4 Equalizer freez

Page 5 - [5] Quick reference guide

FO-90AARAuto dial mode Delay timer of after line 1.7s 2.0s 2.5s 3.0s 3.6s 4.0s 5.5s 7.0s1 connect No. 1 0 0 0 0 1 1 1 1 02 No. 2 0 0 1 1 0 0

Page 6

FO-90AAR1 Reserved 02 Reserved 03 Reserved 04 Reserved 05 Reserved 06 Caller ID function Yes No 0 OPTION7 Reserved 08 Reserved 01 CI off detection tim

Page 7 - (TOP SIDE)

FO-90AARDTMF detection time 50ms 80ms 100ms 120ms1 No. 1 0 0 1 1 02 No. 2 0 1 0 1 03 Protection of remote reception(5 ) Yes No 0detection4 Remote

Page 8 - 1. Operating procedure

FO-90AAR1 Busy tone continuous sound detect time 5sec 10sec 12 Busy tone detect continuation sound detect No Yes 0during OGM3 Busy tone detect continu

Page 9 - RANK 0 or 1

FO-90AARAGC Maximum Gain (line) 10~25dB (1dB step)Binary input1 No. = 8 4 2 1 12 1 2 3 4 13 1 1 0 0 04 0AGC Maximum Gain

Page 10

FO-90AAR1 Sender’s phone number setting Cannot change Change allowed 02 Reserved 1Ringer volume Off Low Middle High OPTION3 No. 3 0 0 1 1 14 No. 4 0 1

Page 11 - • Soft switch

FO-90AAR• Soft switch function descriptionSW-A1 No. 1 Protect from echoUsed to protect from echo in reception.SW-A1 No. 2 Forced 4800BPS receptionWhen

Page 12

FO-90AAR(Danish) ADVARSEL !Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering.Udskiftning må kun ske med batteri af samme fabrikat og type.Levér

Page 13

FO-90AARNo. 1 No. 2 No. 30 0 0 1.7sec0 0 1 2.0sec0 1 0 2.5sec0 1 1 3.0sec1 0 0 3.6sec1 0 1 4.0sec1 1 0 5.5sec1 1 1 7.0secSW-A6 No. 3 Disconnect the li

Page 14

FO-90AAR2 – 15SW-B5 No. 5 Recalling fixed only one time when dialing was un-successful without detecting busy tone signalWhen set to "1", if

Page 15

FO-90AAR2 – 16SW-E1 No. 5 CNG detect time at TEL/FAX modeThe switch which sets the time from the start of CNG detection to theend of detection.SW-E1 N

Page 16

FO-90AAR2 – 17SW-I1 No. 1, No. 2 ICM recording timeUsed to select the incoming message recording time among 15sec/30sec/60sec/4min.SW-I1 No. 3, No. 4

Page 17

FO-90AAR2 – 18SW-J1 No. 7 Polling keyIf this switch is set to 1, the last of Rapid key works as polling key.SW-J1 No. 8 ReservedSet to "0".S

Page 18

FO-90AAR2 – 19[3] TroubleshootingRefer to the following actions to troubleshoot any of the problems men-tioned in 1-4.[1] A communication error occurs

Page 19

FO-90AAR[4] Error code table1. Communication error code tableG3 TransmissionCode Final received signal Error Condition (Receiver side)0 Incomplete sig

Page 20 - DIAL DATA

FO-90AAR2 – 21M E M O

Page 21 - 2000msec

FO-90AAR4 – 1[1] Block diagramCHAPTER 4. DIAGRAMSSRAM256kbitROM2MbitCPUCPU I/FTIMERRTCPIOWATCHDOGTIMERCLOCK32.768kHzINTERRUPTCONTROLLERCIS I/FMOTOR I/

Page 22

FO-90AAR[2] Wiring diagram4 – 2CNCISCNDRCNTHDOORSENSORCNPWCN2CNLIUACNLNJ812CNLIUACNFRSFRONTSENSORCNSPCNCUTCNCSWCNMTCUTTERSWCAM SWTX/RXMOTOR62322CNPNS

Page 23

FO-90AARCHAPTER 1. GENERAL DESCRIPTION[1] SpecificationsAutomatic dialing: Rapid Key Dialing: 5 numbersSpeed Dialing: 35 numbersFax paper: Initial sta

Page 24

FO-90AAR[3] Point- to-point diagram4 – 3TX/RXMOTORTPADTPBDTPADTPBDVMTVMT123456123456789101112131415161234567891011121314151612345678910111213141516123

Page 25 - [3] Troubleshooting

FO-90AARCHAPTER 5. CIRCUIT DESCRIPTION[1] Circuit description1. General descriptionThe compact design of the control PWB is obtained by using CONEXANT

Page 26 - [4] Error code table

FO-90AAR[2] Circuit description of control PWB1. General descriptionFig. 2 shows the functional blocks of the control PWB, which is com-posed of 5 blo

Page 27

FO-90AARCPU Control InterfaceMIRQn 135 I HU − Modem interrupt, active low. (Hysteresis In, Internal Pullup.)SYSCLK 133 I H − System clock. (Hysteres

Page 28 - CHAPTER 4. DIAGRAMS

FO-90AAROperator Panel InterfaceOPI[2]/GPIO[23]/ 50 I/O HU 2XC (Pullup, Hysteresis In) Keyboard return [2] or GPIO[23] or SSCLK1SSCLK1 (for SSIF1)OPI[

Page 29 - [2] Wiring diagram

FO-90AAR(2) Panel control blockThe following controls are performed by the FC200.• Operation panel key scanning• Operation panel LCD display(3) Mechan

Page 30 - [3] Point- to-point diagram

FO-90AAR(4) Modem (FM209V) blockINTRODUCTIONThe CONEXANT FM209V MONOFAX modem is a synchronous 9600bits per second (bps) half-duplex modem with error

Page 31 - [1] Circuit description

FO-90AAR5 – 7FM209V (IC5) Hardware Interface SignalsPin Signals – 128-Pin TQFPPin No. Signal Name I/O Type Pin Description1 SR4IN/RESERVED MI Modem I

Page 32 - (1) Main control block

FO-90AAR5 – 8FM209V (IC5) Hardware Interface SignalsPin Signals – 128-Pin TQFPPin No. Signal Name I/O Type Pin Description72 SPKRM P O Speaker Inter

Page 33

FO-90AAR[3] Circuit description of TEL/LIU PWB(1) TEL/LIU block operational description1) Block diagram2) Circuit descriptionThe TEL/LIU PWB is compos

Page 34

FO-90AAR1 – 2[2] Operation panel121 4 5 62 371514131617 181. Teclas de discado rápido (Rapid Dial keys) Press one of these keys to dial a fax or v

Page 35 - Operation panel LCD display

FO-90AAR5. Externally connected TEL OFF HOOK detection circuit section• The circuit current detection is turned on together with OFF HOOKof main body

Page 36 - PROCESSOR

FO-90AAR(Example: TEL speaking)NO Signal Name (CNLIUA)1 TELOUT2 TELIN3 TELMUTE4CI5HS6 RHSFig. 7Signal Name FunctionRHSH:The handset is in the on-hook

Page 37

FO-90AAR[4] Circuit description of power supply PWB1. Block diagram2-1. Noise filter circuitThe input noise filter section is composed of L1, C1, C15

Page 38

FO-90AARCHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT[1] Control PWB circuit Main control block 1/66 – 1126435BDEFGIHCA126435BDEFGIHCA107737475767779

Page 39

FO-90AARMemory block 2/6126435BDEFGIHCA126435BDEFGIHCA21202919281817251523142613273132110111622241IO81926IO718A142A14IO617A1323A13IO516A1221A12IO415A1

Page 40

FO-90AARModem block 3/6126435BDEFGIHCABDEFGIHCA126435D7A0C1300.01R101270D6D5D4D3D2D1D0A1A2A3A41920212223RS4RS3RS2RS1RS078D779D680D581D482D383D286D188D

Page 41

FO-90AARSensor/Reset/Power supply block 4/66 – 4126435BDEFGIHCABDEFGIHCA126435CNCSW-1CNCSW-2CSWDG(1-4A)CNFRS-1CNFRS-2FRSNSDG(1-3A)CNPN-12ORGSNS(1-3A)(

Page 42

FO-90AARVideo processing/Motor drive / Thermal block 5/66 – 5126435BDEFGIHCABDEFGIHCA126435R1575.1K+5VODGQ22SA1037CNCIS-1<VO>VO(1-1F)<VIN>

Page 43

FO-90AARAnalog signal block 6/66 – 6126435BDEFGIHCABDEFGIHCA126435–++5V+5VA+5V–++5V–++5VA+5V+24VA+5VTELOUTCNLIUA-1C1950R1930C203N.M.R194N.M.123IC11R19

Page 44 - Memory block 2/6

FO-90AARControl PWB parts layout (Top side)6 – 7

Page 45 - Modem block 3/6

FO-90AARTEL/FAX mode: The fax machine automatically answers on the set number ofrings and receives faxes. Voice calls (including manually dialed fax t

Page 46

FO-90AARControl PWB parts layout (Bottom side)6 – 8

Page 47

FO-90AAR6 – 9[2] TEL/LIU PWB circuit 1/2126435BDEFGIHCABDEFGIHCA126435–++5VA+5VA–++5VA+24VA+5VVREF+5V–+VREF+5V–+VREFL3BTLJ-2CNLNJ-2L4JP13JP10JP8CNLNJ-

Page 48 - Analog signal block 6/6

FO-90AAR6 – 10TEL/LIU PWB circuit 2/2126435BDEFGIHCABDEFGIHCA126435+5VDPONCNLIUB-3DPMUTECNLIUB-4E-RLYCNLIUB-5R119470PC1TLP627Q105RNC1402DGQ106RNC1402D

Page 49

FO-90AARTEL/LIU PWB parts layout (Top side)6 – 11

Page 50

FO-90AAR6 – 12TEL/LIU PWB parts layout (Bottom side)

Page 51 - [2] TEL/LIU PWB circuit 1/2

FO-90AAR[3] Power supply PWB circuit6 – 13126435BDEFGIHCA126435BDEFGIHCAD7S3L20U-4004P15C13T1PTTP124FB1R1139ZD7RD20ESABPC2PC123YSQ52SC4210R21150KQ62SC

Page 52 - TEL/LIU PWB circuit 2/2

FO-90AARPower supply PWB parts layout (Top side)6 – 14Power supply PWB parts layout (Bottom side)C8C13J7D7D8IC1ZD7FB1J5C10C16L3ZD4VR1C7L2R24ZD6D9J3J4T

Page 53

FO-90AAR[4] Operation panel PWB circuit6 – 15126435BDEFGIHCABDEFGIHCA126435LD4D41SS270CNLCD-11CNPN-5LD5D31SS270CNLCD-12CNPN-6123456VOLUMESEN0SEN1LD6D2

Page 54

FO-90AAR6 – 16M E M O

Page 55 - [3] Power supply PWB circuit

FO-90AARCONTENTSPARTS GUIDEMODEL FO-90ABecause parts marked with " " are indispensable for the machine safety maintenance and operation, it

Page 56

FO-90AARM E M O1 – 10

Page 57

FO-90AAR[1] Cabinet, etc.– 1 –12256789111213141516171819202122232425252627282829303132333434353637383939414445464748495152535354SCANNERUNITDRIVEUNITDO

Page 58

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR– 2 –[1] Cabinet etc.1 DCEKP481BXH52 BB N E Operation panel unit2 CCNW-212AXH01 AK C Panel cab

Page 59 - PARTS GUIDE

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR[2] Scanner unit– 3 –13115511121017162184366789151920201622191915201615161915222221[2] Scanner

Page 60

FO-90AAR– 4 –[3] Upper cabinet365471B2x38NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTION[4] Document guide upper3524167NO.PARTS CODEPRICERANKNEWMARKP

Page 61

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR– 5 –[5] Drive unit1912318567899111012129129121313131515161742021212214B3[5] Drive unit1 LFRM-

Page 62

FO-90AAR[6] Packing material & Accessories1 TINSS4042XHZZ AS N D Operation manual2 DUNTK468BXHBG AH E Handset3 QCNW-3976XHBG AK C Handset cord4 PH

Page 63

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR– 7 –[7] Control PWB unit1 UBATL2046SCZZ AK B Battery(CR2032T34) [BAT1]2 VCEAGA1HW106M AA C Ca

Page 64

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR– 8 –[7] Control PWB unit81 VCKYTV1HB102K AA C Capacitor(50WV 1000PF) [C197]82 VRS-TS2AD000J A

Page 65

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR– 9 –[7] Control PWB unit161 VRS-TS2AD471J AA C Resistor(1/10W 470Ω ±5%) [R117]162 VRS-TS2AD33

Page 66

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR[7] Control PWB unit241 VRS-TS2AD271J AA C Resistor(1/10W 270Ω ±5%) [R218]242 VRS-TS2AD333J AA

Page 67

FO-90AARCHAPTER 2. ADJUSTMENTS[1] AdjustmentsGeneralSince the following adjustments and settings are provided for this model,make adjustments and/or s

Page 68

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR[8] TEL/LIU PWB unit51 RFILN2027XHZZ AC C Coil(R-5C) [L7]52 RFILN2027XHZZ AC C Coil(R-5C) [L8]

Page 69

NO.PARTS CODEPRICERANKNEWMARKPARTRANKDESCRIPTIONFO-90AAR– 12 –[9] Power supply PWB unit15 0CBUGFF223EH/ AC C Capacitor(AMZV-223J50) [C24]16 0CBPKZ0194

Page 70

No.NEWMARKPARTRANKPRICERANKPARTS CODENo.NEWMARKPARTRANKPRICERANKPARTS CODENo.NEWMARKPARTRANKPRICERANKPARTS CODEFO-90AAR– 13 – I n d e x[C]CCNW-212AXH0

Page 71

No.NEWMARKPARTRANKPRICERANKPARTS CODENo.NEWMARKPARTRANKPRICERANKPARTS CODENo.NEWMARKPARTRANKPRICERANKPARTS CODEFO-90AAR– 14 –VCKYTQ1HB333K 8-30 AA CV

Page 72 - I n d e x

FO-90AARSHARP CORPORATIONCommunication Systems GroupQuality & Reliability Control CenterHigashihiroshima, Hiroshima 739-0192, JapanPrinted in Japa

Page 73

FO-90AAR2. Diagnostic itemsITEM DIRECTNo. keyContents Function1 — SOFT SWITCH MODE Soft switches are displayed and changed. List can be output.2 A ROM

Page 74 - ALL RIGHTS RESERVED

FO-90AAR3. Diagnostic items description3. 1. Soft switch modeThe soft switches are provided so that each operation mode can be setby using the operati

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