Sharp UX-258TH, FO-475TH manual TEL/LIU PWB circuit, These marks are all safety-critical parts

Page 62

6 – 9

A

B

C

D

E

F

G

H

I

[2] TEL/LIU PWB circuit

6

ZD2

ZD1

6

HZ2C1

HZ2C1

NOTE:

These marks are all safety-critical parts.

R4

91

R8

C7

R21

C11

R3

JP

T1

L2

4.7/50

4.7/50

TIP

30

2128

620

TXOUT

MJ1-3

4

CNLIU-8

N.M.

2

VA1

ZD4

C5

C4

AR1

PC1

HZ2C1

R19

2200P

ERZV5D471x2

PC814X

0.01

ZD5

C20

RA391PV62

CML

3

15K

1

HZ2C1

N.M.

VA2

L3

M

RING

C

C8

N.M.

R16

R17

5

MJ1-4

N.M.

R20

B

0.033

VREF

10K

2

10K

5

–

1

RX IN

ARG

C2

R6

R10

3 +

CNLIU-7

1.5

43K

VREF

10K

R22

IC1

R5

R9

3.3K

22K (1/2W)

10K

2904

L4

D4

C3

MJ2-3

EXT-T

1SS270

2200P

N.M.

ZD3

PC2

HZ27

TLP521-1

TELOUT

CNLIU-1

4

EXT-R

L5

MJ2-4

N.M.

C18

R13

4

1500P

1.5K

R14

+5V

C14

36K

R11

4.7/50

IC1

R12

C13

1.5K

L6

CI

2904

6

1K

0.47/50

CNLIU-4

TX

MJTEL-1

4

7

–

C17

N.M.

PC2

C10

+

5

220P

C1

R15

VREF

2200P

TLP521-1

1000P

R7

3

3.3K

C15

C16

JP

TX

Q3

1000P

1000P

MJTEL-4

DTC114

CML

CNLIU-9

CML

3

+24V

B

3

E

HS

CNLIU-5

4

D3

PC1

C9

1SS270

+5V

L1

PC814

1000P

3

RX

MJTEL-3

Q1

Q2

N.M.

DTC114

2SC1815 Q

D1

D2

B

C

B

1SS270

1SS270

E

E

RX

MJTEL-2

L7

HOOK SW

R1

R2

C12

4.7/50

N2024

2

CNLIU-10

+24V

150

RHS CNLIU-6

N.M.

2

CNLIU-12

TELIN

CNLIU-2

DG

TEL MUTE

CNLIU-3

CNLIU-11

+5V

R18

1K

VREF

+5V

R23

C6

C21

1K

22/50

N.M.

8

–

IC1

C19

1

+

0.022

4

2904

1

A

B

C

D

E

F

G

H

I

UX-258TH FO-475TH

Image 62

Contents Facsimile Il y a danger d’explosion s’ il y a remplacement incorrect Specifications Operation panel Transmittable documents Site selection InstallationUse of Document Carrier Sheet ConnectionsOriginal document support Loading the fax paperClearing a jammed document Clearing jammed fax paperFunction key menu Using the answering machineQuick reference guide Transmitting documentsAdjustments Diagnostic items Diagnostics and service soft switchOperating procedure Entering the diagnostic mode Check pattern mode Diagnostic items description Soft switch modeAging mode Signal send modeFlash memory check How to make soft switch settingEntry data receive Flash memory clearOption 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 Auto dial mode Delay timer of after line connect SW-A6 No CNG transmission in manual TX modeSW-B4 No Auto dial mode Delay timer of before line connect SW-B4 No Dial modeSW-E1 No CNG detect time at TEL/FAX mode SW-D1 No Automatic switching manual to auto receive modeSW-E1 No Tel/Fax Automatic switching mode SW-F2 No CNG detection in STAND-BY modeSW-H1 No Reserved SW-H2 No Fax switching when A.M. fullSW-I2 No Alarm during two way recording SW-H1 No Busy tone continuous sound detect timeSW-J2 No ~ No Speaker volume 5 stages SW-J1 No Sender’s phone number settingSW-J1 No , No Ringer volume SW-K1 No Entering Diag mode by pressing Speed keyTroubleshooting ATTG3 Reception Error code tableCommunication error code table G3 Transmission General description Cross section view Documents requiring use of document carrierDocument release General 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 LCD PWB Operation panelGAP Hopper Guide R Guide L 1211 Drive unit, PWB and cutterRib Speaker and paper sensor leverDrive frame 1811PWB Wire treatmentTEL/LIU Block diagram CutterControl PWB Unit Wiring diagramPower Supply 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 GPIO0 2XC Ledctl 4XCLcdcs 1XC GPIO1/SASTXD 2XCPanel control block Mechanism/recording control blockModem R96V24 block IntroductionR96V24 IC1 Hardware Interface Signals Pin Signals 100-Pin PqfpTEL/LIU block operational description Block diagramCircuit description of TEL/LIU PWB Circuit descriptionExternally connected TEL OFF Hook detection circuit section Signal/DTMF transmission level & receiving levelSignal selection 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 Relay board unit Service toolsList Description Relay board unit OFFShading paper IC7 VHiW24257S7LL W24257S-70LLT IC signal nameIC13 VHiULN2003AN/ ULN2003A IC3 VHiMC74HCU04FMC74HCU04F IC6, 10 VHiHCF4053M1T HCF4053BIC4 VHiMC34119DR2 MC34119DR2 IC11, 12 VHiLM2902D/-1 LM2902D IC8 VHi27C02015TiIC5 VHiHEF4051BT1 HEF4051BT IC100 VHiPST596CMT1 PST596CNRIC1 VHiR96FC20V24 R96V24 IC2 VHiR96FC20V24 FC200 IC1 VHiNJM2904D-1 NJM2904D