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UX-258TH
FO-475TH
SERVICE MANUAL
No. 00ZUX258THSME
FACSIMILE
UX-258
MODEL FO-475
CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Specifications ............................................ 1-1
[1] Circuit description ..................................... 5-1
[2] Operation panel......................................... 1-2
[2] Circuit description of control PWB ............ 5-2
[3] Transmittable documents .......................... 1-3
[3] Circuit description of TEL/LI
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UX-258TH FO-475TH CAUTION FOR BATTERY REPLACEMENT (Danish) ADVARSEL ! Lithiumbatteri-Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af samme fabrikat og type. Levér det brugte batteri tilbage til leverandoren. (English) Caution ! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type recommended by the equipment manufacturer. Discard used batteries according to manufacturer’s instructions. (Finnish) VAROITUS Paristo voi
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UX-258TH FO-475TH CHAPTER 1. GENERAL DESCRIPTION [1] Specifications Automatic dialing: Rapid Key Dialing: 10 numbers Effective scanning width: 210 mm max. Speed Dialing: 20 numbers Contrast control: Automatic/Dark selectable Fax paper: Initial starter roll (included with fax Copy function: Standard machine): 10 m roll Telephone function: Standard Recommended replacement roll: (cannot be used for incoming/outgoing FO-40PR 50 m roll if power fails) Automatic document feeder: 10 sheets max. Pow
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UX-258TH FO-475TH [2] Operation panel 1 2 3 4 5 6 7 8 9 10 11 12 RECEPTION REC REPEAT PLAY/SKIP DELETE REMINDER MODE FUNCTION RESOLUTION TEL FAX VOLUME DOWN UP ANSWERING ANS. TEL/FAX DIGITAL SYSTEM ABC DEF STOP SPEED DIAL 01 02 JKL MNO GHI COPY/HELP REDIAL 03 04 PQRS TUV WXYZ 05 06 HOL/SEARCH START/MEMORY 08 07 SPEAKER 09 10/POLL 15 16 17 18 19 20 13 14 1. Display 13. Number keys Use these keys to dial numbers, and enter number and letters This displays messages and prompts du
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UX-258TH FO-475TH 5. Automatic Document Feeder Capacity [3] Transmittable documents Number of pages that can be placed into the feeder at anytime is as 1. Document Sizes follows: Normal size: max. ADF 10 sheets width 148 – 216 mm Normal size Special size: single sheet only (manual feed) length 140 – 297 mm NOTES: • When you need to send or copy more pages than the feeder limit, place additional pages in feeder when last page in feeder is being scanned. (Max.) • Place additional pages carefully
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TEL. TEL. SET LINE UX-258TH FO-475TH 7. Use of Document Carrier Sheet TELEPHONE JACK A standard telephone jack must be located near the machine. A document carrier sheet must be used for the following documents. This is the telephone jack commonly used in most homes and offices. • Those with tears. • Plugging the fax machine into a jack which is not an jack may result • Those smaller than size 140 mm (W) x 140 mm (L). in damage to the machine or your telephone system. If you do not • Carbon-back
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UX-258TH FO-475TH 3. Original document support 3 Unwrap the roll of fax paper and place it in the compartment. • Important: The roll must be placed so that the leading edge of 1 Rotate the original document support so that it points straight out. the paper unrolls as shown. (The paper is only coated on one side for printing. If the roll is placed backwards, the paper will come out blank after printing.) NO! YES 4. Loading the fax paper • Your fax machine prints incoming faxes on a special kind
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UX-258TH FO-475TH 4. Clearing a jammed document 3 Cut off the wrinkled part of the paper. If the original document doesn’t feed properly during transmission or copying, or DOCUMENT JAMMED appears in the display, first try press- ing the START/MEMORY key. If the document doesn’t feed out, open the operation panel and remove it. Important: Do not try to remove a document without opening the op- eration panel. This may damage the feeder mechanism. 1 Pull the release marked PANEL RELEASE toward you
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UX-258TH FO-475TH [5] Quick reference guide FUNCTION key menu The following chart shows the layout of the functions and settings accessed by pressing the FUNCTION key. First press the FUNCTION key, the appropriate numeric key as shown, and then "#" or " " until the desired item appears. Instructions for making each setting appear in the display. If you have any difficulty, refer to the detailed instructions on the page shown below the setting. FUNCTION 0 1 2 3 4 Listing Mode Optional Settings A
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UX-258TH FO-475TH 2. IC protectors replacement CHAPTER 2. ADJUSTMENTS ICPs (IC Protectors) are installed to protect the motor driver circuit. ICPs protect various ICs and electronic circuits from an overcurrent con- [1] Adjustments dition. The location of ICPs are shown below: General Since the following adjustments and settings are provided for this model, CNPW CNLIUA make adjustments and/or setup as necessary. 1. Adjustments FU100 Adjustments of output voltage (FACTORY ONLY) CONTROL PWB 1. Ins
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UX-258TH FO-475TH [2] Diagnostics and service soft switch 1. Operating procedure (1) Entering the diagnostic mode Press FUNC → 9 → → 8 → # → 7 , and the following display will appear. ROM Ver. FKD0 After 2 sec: DIAG MODE FKD0 Then press the START key. Select the desired item with the key or the # key or select with the rapid key. Enter the mode with the START key. (Diag•specifications) FUNC 9 8 7 FKD0 DIAG MODE START Flash memory clear Soft switch mode
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UX-258TH FO-475TH 3. Diagnostic items description 3. 6. Signal send mode 3. 1. Soft switch mode The mode is used to send various signals to the circuit during FAX com- munication. Every push of START key sends a signal in the following Used to change the soft switch settings. sequence. Moreover, the signal sound is also output to the speaker when The soft switch which is stored internally is set by using the keys. the line monitor of the soft switch is on. [1] No signal (CML signal turned on) Th
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UX-258TH FO-475TH 3. 12. Entry data receive 3. 13. Flash memory check In this mode, the registered data sent from the other machine are re- Data writing/read of flash memory is checked, and the result (OK/NG) is ceived and the received data are registered in the own machine. When printed. this mode is used for receiving, the other machine must be in the entry data send mode. 3. 14. Flash memory clear After receiving is completed, the following lists are printed. 1. Telephone list data All data o
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UX-258TH FO-475TH 5. Soft switch description • Soft switch Switch setting and function Initial SW DATA ITEM Remarks setting NO. NO. 10 1 Protect from echo No Yes 0 2 Forced 4800 BPS reception Yes No 0 3 Footer print Yes No 0 4 Length limitation of copy/send/receive No limit Copy/send: 60cm 0 Receive: 1.5m SW l 5 CSI transmission No transmitted Transmitted 0 A1 6 DIS receive acknowledgement during G3 Twice NSF: Once 0 transmission DIS: Twice 7 Non-modulated carrier for V29 transmission Yes No 0 m
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UX-258TH FO-475TH Switch setting and function Initial SW DATA ITEM Remarks NO. setting NO. 1 0 1 Auto gain control (MODEM) Enable Disable 1 2 End Buzzer Yes No 1 3 Disconnect the line when DIS is received in No Yes 1 RX mode SW l 4 Equalizer freeze control (MODEM) On Off 0 A6 5 Equalizer freeze control 7200 BPS only No Yes 0 6 CNG transmission in manual TX mode Yes No 1 7 Initial compression scheme for sharp fax in MR mode H2 mode 0 TX mode 8 Reserved 0 1 Recall interval Binary input 0 OPTION 2
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UX-258TH FO-475TH Switch setting and function Initial SW DATA ITEM Remarks NO. setting NO. 1 0 1 DTMF signal transmission level (High) Binary input 0 2 No. = 16 8 4 2 1 0 3 1 2 3 4 5 1 SW l 4 0 0 1 1 0 (0.5 x 7 = -3.5 dBm) 1 B6 5 0 6 Reserved 0 7 Reserved 0 8 Reserved 0 Reading slice (Binary) Factory Light Dark Darker in setting dark mode 1 No. 1 0 1 0 1 0 2 No. 2 0 0 1 1 0 Reading slice (Half tone) Factory Light Dark Darker in SW setting dark mode l 3 No. 3 0 1 0 1 0 C1
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UX-258TH FO-475TH Switch setting and function Initial SW DATA ITEM Remarks setting NO. NO. 1 0 1 Pseudo ringer sound output level to the line Binary input 0 2 No. = 8 4 2 1 1 3 1 2 3 4 0 SW 4 0 1 0 1 (-5 dBm -5 = -10 dBm) 1 l (-5 ~ -20 dBm setting) E2 5 Reserved 0 6 Reserved 0 7 Reserved 0 8 Reserved 0 DTMF detection time 50ms 80ms 100ms 120ms 1 No. 1 0 0 1 1 0 2 No. 2 0 1 0 1 0 SW 3 Protection of remote reception (5 ) detect Yes No 0 OPTION l 4 Remote reception with
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UX-258TH FO-475TH Switch setting and function Initial SW DATA ITEM Remarks setting NO. NO. 1 0 1 Busy tone detection ON/OFF time (Lower 350ms 150ms 0 duration) 2 Busy tone detection ON/OFF time (Upper 650ms 900ms 0 duration) 3 Reserved 0 4 Busy tone continuous sound detect time 5s 10s 1 SW 5 Busy tone detect continuation sound detect No Yes 0 l during OGM H1 6 Busy tone detect continuation sound detect No Yes 0 during ICM 7 Busy tone detect intermittent sound detect No Yes 0 during OGM 8 Busy to
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UX-258TH FO-475TH Switch setting and function Initial SW DATA ITEM Remarks setting NO. NO. 1 0 1 Max OGM record time 15s 60s 0 2 Reserved 0 3 Two way record function Disable Enable 0 SW 4 Toll saver Disable Enable 0 OPTION l 5 Reserved 0 I3 6 Reserved 0 7 BOX selection to record ICM 2 digits DTMF 1digit DTMF 0 8 Transfer did recall Disable Enable 0 1 AGC maximum gain (line) Binary input 1 2 (10 ~ 25 dBm ) No. = 8 4 2 1 1 3 1 2 3 4 0 SW 4 1 1 0 1 (23 dB) 1 l 5 AGC maxi
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UX-258TH FO-475TH Switch setting and function Initial SW DATA ITEM Remarks setting NO. NO. 1 0 1 Reserved 0 2 Reserved 0 3 Polling key Yes NO 0 OPTION 4 Reserved 0 SW l 5 Reserved 0 J2 Speaker volume (5 stages) Very Low Low Middle High Very High OPTION 6 No. 6 0 0 0 0 1 0 7 No. 7 0 0 1 1 0 1 8 No. 8 0 1 0 1 0 0 1 Reserved 0 2 Reserved 0 Communication results printout Error/Timer Send only Always No print OPTION 3 (Transaction report) No. 3 0 0 1 1 0 SW 4 No. 4 0 1 0 1 0 l J3 5 Reserved 0 6 Reser
