Sharp UX-258TH, FO-475TH manual Power supply PWB circuit, NJM78M05FA

Page 64

A

B

C

D

E

F

G

H

I

[3] Power supply PWB circuit

6

6

R7

T1

D7

FB1

F3

CN2

220K(2W)

(1)

(5)

S3L20U-4004P15

CCP2E100

7

VM

TH1

R5

C6

10

M16007C

C7

560K

R13

VTH

C5

220P

1500P

PC1

R14

C16

270

6.8K

68/400

PC123FY8

9

R6

2200P

R19

1

RY1

VTH

R2

D5

560K

AJS3312

0.33(2W)

05NU42

N.M.

R12

8

2.2K

2

VTH

(2)

R16

Q3

VR1

5

RL1N4005 x 4

Q1

820

C15

RD30FB3

2SC1740S

470

5

D3

D4

D1

D2

R3

FS5KM-18A

C8

R8

ZD4

3

680/35

VTH-ON

15K

4700P

820

(3)

RD6

D9

6

IS2076A

ZD3 .2ESAB2

R15

MG

D6

2.4K

IS2076A

5

C20

C17

MG

2200P

C9

1000P

C4

0.068

R10

RD3

4

MG

(6)

1000P

33

C3

R4

4

ZD2 .3ESAB2

IC1

100

4

1000P

PC1

D8

NJM78M05FA

PC123FY8

(7)

SR140

1

IN

OUT 3

2

+5V

4

1000P

3

C2

C10

GND

0.1

Q4

R11

R9

2

C19

2SC1741ASQR

1000P

C18

6 –

1000P

560

560

C11

C14

1/50

470/16

L1

Q2

11

2SC2655-Y

1

DG

(8)

(4)

3

R1

3

560K

C13

C1

2200P

0.1

V1

470V

F1

F2

T1.25A/250V

T1.25A/250V

2

2

1

3

AC L

AC N

CN1

1

1

A

B

C

D

E

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UX-258TH FO-475TH

Image 64

Contents Facsimile Il y a danger d’explosion s’ il y a remplacement incorrect Specifications Operation panel Transmittable documents Installation Use of Document Carrier SheetSite selection ConnectionsOriginal document support Loading the fax paperClearing a jammed document Clearing jammed fax paperUsing the answering machine Quick reference guideFunction key menu Transmitting documentsAdjustments Operating procedure Entering the diagnostic mode Diagnostics and service soft switchDiagnostic items Diagnostic items description Soft switch mode Aging modeCheck pattern mode Signal send modeHow to make soft switch setting Entry data receiveFlash memory check Flash memory clearData Soft switch descriptionOption 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-A6 No CNG transmission in manual TX mode SW-B4 No Auto dial mode Delay timer of before line connectSW-B4 No Auto dial mode Delay timer of after line connect SW-B4 No Dial modeSW-D1 No Automatic switching manual to auto receive mode SW-E1 No Tel/Fax Automatic switching modeSW-E1 No CNG detect time at TEL/FAX mode SW-F2 No CNG detection in STAND-BY modeSW-H2 No Fax switching when A.M. full SW-I2 No Alarm during two way recordingSW-H1 No Reserved SW-H1 No Busy tone continuous sound detect timeSW-J1 No Sender’s phone number setting SW-J1 No , No Ringer volumeSW-J2 No ~ No Speaker volume 5 stages SW-K1 No Entering Diag mode by pressing Speed keyTroubleshooting ATTCommunication error code table G3 Transmission Error code tableG3 Reception General description Documents requiring use of document carrier Document release GeneralCross section view Recording block 5-1. General viewDisassembly and assembly procedures Handset cover and paper support guidePWB case top, bottom and PWB Screwdriver Hook CIS support 11 ,13 Stopper plate Operation panel unit and scanner frameDocument guide upper unit and head frame Document guide upper GAP Hopper Guide R Guide L Operation panelLCD PWB 1211 Drive unit, PWB and cutterRib Speaker and paper sensor leverDrive frame 1811TEL/LIU Wire treatmentPWB Block diagram CutterWiring diagram Power Supply PWB UnitControl PWB Unit TEL/LIU PWB UnitPoint- to-point diagram Circuit description Circuit description of control PWB Description of each block Main control blockFC200 IC2 Terminal descriptions Ledctl 4XC Lcdcs 1XCGPIO0 2XC GPIO1/SASTXD 2XCPanel control block Mechanism/recording control blockModem R96V24 block IntroductionR96V24 IC1 Hardware Interface Signals Pin Signals 100-Pin PqfpBlock diagram Circuit description of TEL/LIU PWBTEL/LIU block operational description Circuit descriptionSignal/DTMF transmission level & receiving level Signal selectionExternally connected TEL OFF Hook detection circuit section CI detection circuitExample TEL speaking Circuit description of power supply PWB Circuit description of CIS unitCircuit Block ControlPWBMemory block 44PIN TsopModem IC3Other block 2902Video processing/Motor drive / Thermal block ULN2003AAnalog signal block IC5Control PWB parts layout Top side Control PWB parts layout Bottom side These marks are all safety-critical parts TEL/LIU PWB circuitTEL/LIU PWB parts layout Power supply PWB circuit NJM78M05FAPower supply PWB parts layout Operation panel PWB circuit IC101 74HC147Operation Flowchart ProtocolPower on sequence List Service toolsRelay board unit Description Relay board unit OFFShading paper IC signal name IC13 VHiULN2003AN/ ULN2003AIC7 VHiW24257S7LL W24257S-70LLT IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053BIC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015Ti IC5 VHiHEF4051BT1 HEF4051BTIC4 VHiMC34119DR2 MC34119DR2 IC100 VHiPST596CMT1 PST596CNRIC1 VHiR96FC20V24 R96V24 IC2 VHiR96FC20V24 FC200 IC1 VHiNJM2904D-1 NJM2904D