Sharp FO-475TH, UX-258TH manual Analog signal block, IC5

Page 59

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-UX258TH -FO475TH

Analog signal block

6/6

6

(1-1D)

TXCONT

R118

C186

MICIN

CNMIC-3

6

N.M. C227

10K

2200P

+5V

R212

R217

C187

5.6K

R229

R236

N.M.

–

6

10K

473C

7

5

R188

B

+

VREF

N.M.

10

R216

R232

C11 N.M.

3.3K

IC12

0

2

1K

TELOUT

CNLIUA-1

DG

2902

15

R187

IC10

IC6

C165

C

1

47K

VREF

4053

4053

0.1

1

5

C166

16

16

5

IC6

VCC

+5V

VCC

+5V

DG

N.M.

4053

DG

CNMIC-1

C164

R204

C163

C180

DG

ENABLE

4.7K

1000P

DG

CNMIC-2

6

0.1

6

0.1

VEE

R206

R209

GND

7

GND

7

(6-2A)

ALARM

39.2K

8

8

C179

N.M.

IC11

TXA1

0.22

R208 8.2K

6 –

DG

DG

(3-3H)

7

2902

TXOUT

(3-3H)

TXA2

C182

R207 8.2K

5 + A

CNLIUA-8

+5V

0.22

R202

C178

R180

33K

0.01

3.3K

4

4

DG

DG

(1-1D)

GAINC

C185

6

IC6

1000P

IC6

–

4053

R214

C143

C140

68.1K

4053

11

R167

6

3

1

13

68.1K

0.1

RXIN

(3-4H)

RIN

0.1

4

1

CNLIUA-7

R178

C

5

1

–

2

14

R166

10K

BZCONT

3

12

0

EXSIG

(1-1E)

0

B

+

VREF

0

CNLIUB-1

R165

R163

3

IC12

3

RXCONT

9

3.9K

N.M.

IC4

+5V

(1-4A)

2902

MC34119

C141

R234

R164

330P

20K

IC5

R162

(1-3A)

MONITOR

100K

R186

4051

C230

R161

150K

IC10

20K 13

0.1

3K

4

9

4053

X0

X

–

6

SP+

C200

2

5

C176

C177

R203

0

5

+

CNSP-1

R184

14

3

0.1

0.1

10K

4

N.M.

X1

8

R237

33K

VDD

16

+5V

1

7

1

3

68K

R182

15

SP–

C198

R233

IC11

C181

X2

C139

CNSP-2

0.1

10

47K

20K

2

–

1

2902

0.1

2

R160

12

6,7,8

0.1

SPMUTE

2

2

3

+ A

0

X3

C6

C4

(1-5A)

VREF

100K

R138

15

4.7/50

1/50

R179

1

R181

1

X4

DG

DGDG

DG

10K

RCVOL

10K

1

220K

(3-1D)

IC10

R159

5

11

VOL A

C162

IC10

X5

A

(3-1C)

ALARM

4053

330K

10

VOL B

(6-5A)

11

C201

B

(3-1C)

4053

13 R201

R183

2

9

VOL C

N.M.

1

1000P

X6

C

(3-1C)

R205

14

470K

R240

4

X7

12

47K

N.M.

0

+5V

R231

R185

+24VA

R140

R230

N.M.

1M

R246

4

10K

BZOUT

(1-1F)

20K

13

1

33K

–

14

TELIN

CNLIUA-2

R137

C124

1

12 + A

R139

C142

R210

IC11

R241

10K

0.01

1.5K

4700P

R213

10K

C183

11

2902

1.5K

33K

C184

VREF

1

C232

DG

DG

1

0.1

DG

DG

DG

DG

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Image 59

Contents Facsimile Il y a danger d’explosion s’ il y a remplacement incorrect Specifications Operation panel Transmittable documents Connections InstallationUse of Document Carrier Sheet Site selectionLoading the fax paper Original document supportClearing jammed fax paper Clearing a jammed documentTransmitting documents Using the answering machineQuick reference guide Function key menuAdjustments Diagnostic items Diagnostics and service soft switchOperating procedure Entering the diagnostic mode Signal send mode Diagnostic items description Soft switch modeAging mode Check pattern modeFlash memory clear How to make soft switch settingEntry data receive Flash memory checkOption Soft switch descriptionData No. = X 60 sec = 5 min Recall times Binary input Light Dark Darker TEL 0~9 No. = CNG detection in STAND-BY mode Yes Fax switching when A.M. full Yes 10 ~ 25 dBm No. = 12 dB AGC eref access code line Reserved Speaker volume 5 stages Soft switch function description SW-B4 No Dial mode SW-A6 No CNG transmission in manual TX modeSW-B4 No Auto dial mode Delay timer of before line connect SW-B4 No Auto dial mode Delay timer of after line connectSW-F2 No CNG detection in STAND-BY mode SW-D1 No Automatic switching manual to auto receive modeSW-E1 No Tel/Fax Automatic switching mode SW-E1 No CNG detect time at TEL/FAX modeSW-H1 No Busy tone continuous sound detect time SW-H2 No Fax switching when A.M. fullSW-I2 No Alarm during two way recording SW-H1 No ReservedSW-K1 No Entering Diag mode by pressing Speed key SW-J1 No Sender’s phone number settingSW-J1 No , No Ringer volume SW-J2 No ~ No Speaker volume 5 stagesATT TroubleshootingG3 Reception Error code tableCommunication error code table G3 Transmission General description Recording block 5-1. General view Documents requiring use of document carrierDocument release General Cross section viewHandset cover and paper support guide Disassembly and assembly proceduresPWB case top, bottom and PWB Operation panel unit and scanner frame Screwdriver Hook CIS support 11 ,13 Stopper plateDocument guide upper unit and head frame Document guide upper LCD PWB Operation panelGAP Hopper Guide R Guide L Drive unit, PWB and cutter 1211Speaker and paper sensor lever Rib1811 Drive framePWB Wire treatmentTEL/LIU Cutter Block diagramTEL/LIU PWB Unit Wiring diagramPower Supply PWB Unit Control PWB UnitPoint- to-point diagram Circuit description Description of each block Main control block Circuit description of control PWBFC200 IC2 Terminal descriptions GPIO1/SASTXD 2XC Ledctl 4XCLcdcs 1XC GPIO0 2XCMechanism/recording control block Panel control blockIntroduction Modem R96V24 blockPin Signals 100-Pin Pqfp R96V24 IC1 Hardware Interface SignalsCircuit description Block diagramCircuit description of TEL/LIU PWB TEL/LIU block operational descriptionCI detection circuit Signal/DTMF transmission level & receiving levelSignal selection Externally connected TEL OFF Hook detection circuit sectionExample TEL speaking Circuit description of CIS unit Circuit description of power supply PWBControlPWB Circuit Block44PIN Tsop Memory blockIC3 Modem2902 Other blockULN2003A Video processing/Motor drive / Thermal blockIC5 Analog signal blockControl PWB parts layout Top side Control PWB parts layout Bottom side TEL/LIU PWB circuit These marks are all safety-critical partsTEL/LIU PWB parts layout NJM78M05FA Power supply PWB circuitPower supply PWB parts layout IC101 74HC147 Operation panel PWB circuitProtocol Operation FlowchartPower on sequence Relay board unit Service toolsList OFF Description Relay board unitShading paper IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053B IC signal nameIC13 VHiULN2003AN/ ULN2003A IC7 VHiW24257S7LL W24257S-70LLTIC100 VHiPST596CMT1 PST596CNR IC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015TiIC5 VHiHEF4051BT1 HEF4051BT IC4 VHiMC34119DR2 MC34119DR2IC1 VHiR96FC20V24 R96V24 IC1 VHiNJM2904D-1 NJM2904D IC2 VHiR96FC20V24 FC200