Sharp FO-475TH, UX-258TH CNLIUA, 12 1 CNPW, CNLIU

UX-258TH

FO-475TH

8 – 2

2. Description

2-1. Relay board unit

1. Remove the TEL/LIU PWB, control PWB and Power Supply PWB

from this unit, and mount the relay board unit instead.

•Before connecting the wiring to the relay board unit, set the test

PWB switches to the fixed position.

2. The setting is as follows.

The recording paper sensor (PSNS) is operated by OR of the mechani-

cal unit switch and the test PWB switch. When performing installation in

the machine unit, set the test PWB switches to the fixed position.

Mechanical unit PWB to be tested

Actual operation with mechanical unit

Recording paper

sensor ON/OFF operation OFF (Photo interrupter

is interrupted.)

PWB sensor check

Recording paper

sensor ON/OFF operationOFF

POWER

SUPPLY

PWB

TEL/LIU

PWB

CHECK

CONTROL

PWB

DOOR

SENSOR

RELAY CABLE

DON'T SEPARATE

UNIT

TP3

(PSNS)

TP3

(PSNS)

TP1(DG)

TP2(+5V)

CK

A

E

These cables are connected from the extension board

and the checked control PWB at TP1 thru TP3 (signals

of DG, +5V and PSNS).

EXTENSION PWB

NOTE

Relay

cable

CNLIUA

CHECK

CONTROL

PWB

TEL/LIU

PWB

121CNPWCNLIU

POWER

SUPPLY

PWB

• The relay cables are used as one pair.• The sensor is wired as shown in the following figure.• The door swich and hook switch are manually operated.

Contents

Main No. 00ZUX258THSME SHARP CORPORATION CONTENTS SERVICE MANUAL FACSIMILE UX-258 MODEL FO-475 CAUTION FOR BATTERY REPLACEMENT 1 1 CHAPTER 1. GENERAL DESCRIPTION [1] Specifications [2] Operation panel 11 12108 9 13 4 5 7 26 13 14 15 16 17 18 19 20 1 3 [3] Transmittable documents Readable length (Min.) 1. Document Sizes Readable width [4] Installation 1. Site selection ENVIRONMENT 3. Original document support 4. Loading the fax paper Remove cardboard and tape 1 6 4. Clearing a jammed document 5. Clearing jammed fax paper 1 7 [5] Quick reference guide Note: Steps which are optional are enclosed in a dotted frame: FUNCTION key menu Transmitting documents Using the answering machine CHAPTER 2. ADJUSTMENTS [1] Adjustments 2 1 General 1. Adjustments Adjustments of output voltage (FACTORY ONLY) [2] Diagnostics and service soft switch 1. Operating procedure (1) Entering the diagnostic mode 2. Diagnostic items 2 2 3. Diagnostic items description 3. 1. Soft switch mode 3. 2. ROM & RAM check 3. 3. Aging mode 3. 4. Panel key test 3. 5. Check pattern mode S F T SW-A2 = 0 0 0 0 0 0 0 0 S F T SW-L2 = 0 0 0 0 0 0 0 0 S F T SW-A1 = 0 0 0 0 0 0 0 0 DATA No. 1 2 3 4 5 6 7 8 5. Soft switch description Soft switch 2 5 2 6 2 7 2 8 2 9 2 10 2 11 Soft switch function description 2 12 TX RX CED DIS T 2 13 2 14 2 15 Reception OGM output ICM recording 2 sec~ 5 sec ( SW-I1No. 3, No. 4) Reception OGM output ICM recording 0 sec~3 sec (SW-I1 No. 5, No. 6) 2 16 [3] Troubleshooting 's service C2 D1 A1 A2 C1 D2 Our service [4] Error code table 1. Communication error code table G3 Transmission 2 18 G3 Reception CHAPTER 3. MECHANISM BLOCKS [1] General description Paper feed spring Document Paper feed roller 3-5. Documents requiring use of document carrier 4. Document release 4-1. General 4-2. Cross section view 5. Recording block 5-1. General view 3 2 [2] Disassembly and assembly procedures Handset cover and paper support guide 1 Page Page Document guide upper unit and head frame 4 Page Page Page Page Drive frame 9 ,, , Wire treatment 10 3 12 [1] Block diagram 4 1 CHAPTER 4. DIAGRAMS [2] Wiring diagram CONTROL PWB UNIT 4 2 TEL/LIU PWB UNIT POWER SUPPLY PWB UNIT [3] Point- to-point diagram 4 3 CHAPTER 5. CIRCUIT DESCRIPTION [1] Circuit description 5 1 1. General description 2. PWB configuration [2] Circuit description of control PWB 1. General description Fig. 2 shows the functional blocks of the control PWB, which is com- posed of 4 blocks. Fig. 2 Control PWB functional block diagram 2. Description of each block (1) Main control block FC200 (IC2) Terminal descriptions 5 3 FC200 (IC2) Terminal descriptions 5 4 FO-475TH (2) Panel control block The following controls are performed by the FC200. (3) Mechanism/recording control block Fig. 4 5 5 (4) Modem (R96V24) block INTRODUCTION 5 6 FEATURES R96V24 (IC1) Hardware Interface Signals 5 7 [3] Circuit description of TEL/LIU PWB (1) TEL/LIU block operational description 1) Block diagram 2) Circuit description 3) Block description 5 10 [4] Circuit description of power supply PWB [5] Circuit description of CIS unit 6 1 CHAPTER 6. CIRCUIT SCHEMATICS AND P ARTS LAYOUT HCA BDEFG 2 1 Memory block 2/6 IC8 27C020 IC7 W24257S-70LL IC9 KM29N040T (44PIN TSOP) 6 3 IC1 R96V24 6 4 Other block 4/6 IC100 PST596CNR 6 5 UX-258TH Video processing/Motor drive / Thermal block 5/6 IC13 ULN2003A 6 6 Analog signal block 6/6 IC5 4051 IC4 MC34119 Page Page 6 9 These marks are all safety-critical parts. NOTE: [2] TEL/LIU PWB circuit Page 6 11 NJM78M05FA [3] Power supply PWB circuit Page [4] Operation panel PWB circuit BDEFG 6 13 Note: Since the parts of this PWB can not be supplied, change it as a unit. 5 CHAPTER 7. OPERATION FLOWCHART [1] Protocol 7 2 [2] Power on sequence CHAPTER 8. OTHERS 8 2 2. Description 2-1. Relay board unit NOTE Relay cable CNLIUA CHECK CONTROL TEL/LIU 12 1 CNPW CNLIU Page [2] IC signal name CONTROL PWB UNIT 16 15 14 13 12 11 10 9 12345678 1B 2B 3B 4B 5B 6B 7B E 1C 2C 3C 4C 5C 6C 7C COM 1 2 3 4 CD FC2 FC1 VIN (TOP VIEW) GND VCC 8 6 IC1: VHiR96FC20V24 (R96V24) FO-475TH 8 7 TEL/LIU PWB UNIT IC1: VHiNJM2904D-1 (NJM2904D) - IC2: VHiR96FC20V24 (FC200) 1 2 3 4