Page 1: Table Of Contents
FO-780AT/ES SERVICE MANUAL No. 00ZUX370ESSME FACSIMILE UX-370 FO-780 MODEL SELECTION CODE COUNTRY UX-370ES/FO-780ES Spain UX-370SE Sweden Illustration: UX-370 UX-370F France FO-780AT Austria CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 5. CIRCUIT DESCRIPTION [1] Specifications ..........1-1 [1] Circuit description ........5-1 [2] Operation panel .........
Page 2 UX-370ES/SE/F FO-780AT/ES 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.
Page 3: Chapter 1. General Description
Length  140 to 600 mm As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for procduct improvement without prior notice. The performance specifications figures indicated are nominal values of production units. There may be some deviation from these values in individual units.
Page 4: Operation Panel
UX-370ES/SE/F FO-780AT/ES [2] Operation panel 4 5 6 TEL FAX A.M. TEL/FAX SPEED RECEPTION VOLUME DIAL MODE DOWN RESOLUTION FUNCTION REDIAL PQRS WXYZ COPY/HELP SEARCH STOP SYMBOLS SPEAKER ABRUF START/MEMORY (FO-780) 13 14 05/POLL (UX-370) 10. SEARCH/R key (ALPHAWAL/R) 1. SPEED DIAL key (KURZAHL) (Touche ABREGE) (Touche RECHERCHE NOM/N°/R) (Tecla MARCACION RAPIDA) (Tecla BUSQUEDA/R)
Page 5: Transmittable Documents
UX-370ES/SE/F FO-780AT/ES 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 – 210 mm Normal size Special size: single sheet only (manual feed) length 128 –...
Page 6: Installation
30 A4 pages. Direction of insertion • When replacing the film, use a roll of Sharp UX-3CR/FO-3CR imaging NOTE: To transmit a carbon-backed document, insert a white sheet of film. One roll can print about 95 A4 pages. paper between the carbon back of the document and the docu- Note: If there is paper in the paper tray, pull the paper release plate ment carrier.
Page 7 Display shows: INITIALIZE FILM START/MEMORY When to replace the imaging film. Replace the imaging film when the display shows: FILM END Use the following imaging film, which is available from your dealer or retailer: Sharp UX-3CR/FO-3CR Imaging Film 1 – 5...
Page 8 UX-370ES/SE/F FO-780AT/ES 3. Assembly and connections Attach the paper tray extension. ♦ Pull the paper release plate forward. Insert the paper tray extension Plug the power lead into a 220-230 V, 50 Hz, earthed (2-prong) AC horizontally into the notches in the paper tray. Rotate the paper outlet.
Page 9 UX-370ES/SE/F FO-780AT/ES 5. Clearing a jammed document Insert the stack of paper into the tray, print side down. • If paper remains in the tray, take it out and combine it into a single If the original document doesn’t feed properly during transmission or stack with the new paper before adding the new paper.
Page 10 UX-370ES/SE/F FO-780AT/ES 6. Clearing jammed printing paper Close the print compartment cover (press down on both sides to make sure it clicks into place), and then close the operation panel. Pull the paper release plate forward and remove the paper. Click! Replace the paper in the paper tray and push the paper release plate back down.
Page 11: Quick Reference Guide
UX-370ES/SE/F FO-780AT/ES SETTING THE DATE AND TIME [5] Quick reference guide Note: Imaging film and paper must be loaded to perform the following operation. INSTALLATION FUNCTION Press: Display shows: DATE & TIME SET Press the START/MEMORY key: START/MEMORY T E L S E T Enter two digits for the Day (01 through 31).
Page 12: Option Imaging Film Specifications
UX-370ES/SE/F FO-780AT/ES [6] Option imaging film specifications (UX-3CR/FO-3CR) 1. Structure This article is composed of polyester film coated with heat-resistant layer, matt layer and hot melt ink layer, leader film and paper core. Ink film specification is "DNP standard ink film HC".
Page 13: Chapter 2. Adjustments
(step 3) Select, using "1" or "2". +24V +24V KEY: +24V DISPLAY: TONE SELECTED KEY: PSAVE DISPLAY: PLUSE SELECTED (step 4) End, using the "STOP" key. KEY: STOP (UX-370SE/F) Setting is not required since the required mode is TONE ONLY. 2 – 1...
Page 14: Diagnostics And Service Soft Switch
Press FUNC → 9 → → 8 → # → 7 , and the following display will appear. ROM Ver. FLL0 (FML0 , FLW0 , FMG0 , FLM0 ) After 2 sec: DIAG MODE FLL0 (UX-370ES) FML0 (UX-370SE) FLW0 (UX-370F) FMG0 (FO-780AT) FLM0 (FO-780ES) Then press the START key.
Page 15 UX-370ES/SE/F FO-780AT/ES 3. Diagnostic items description 3. 6. Signal send mode 3. 1. Soft switch mode This 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.
Page 16 UX-370ES/SE/F FO-780AT/ES 4. How to make soft switch setting To enter the soft switch mode, make the following key entries in sequence. Press FUNCTION START START DATA No. 1 2 3 4 5 6 7 8 S F T SW-A1 = 0 0 0 0 0 0 0 0 Press FUNCTION key.
Page 17 UX-370ES/SE/F FO-780AT/ES 5. Soft switch description • Soft switch Initial setting Switch setting and function DATA ITEM Remarks ES SE Protect from echo Forced 4800 BPS reception Footer print Length limitation of No limit Copy/send: 60cm copy/send/receive Receive: 1m CSI transmission No transmitted Transmitted DIS receive acknowledgement...
Page 18 Disconnect the line when DIS is received in RX mode Equalizer freeze control (MODEM) Equalizer freeze control 7200 BPS only CNG transmission in manual TX mode Initial compression scheme for sharp MR mode H2 mode fax in TX mode Reserved Reserved Reserved Reserved...
Page 19 UX-370ES/SE/F FO-780AT/ES Initial setting Switch setting and function DATA ITEM Remarks ES SE DTMF signal transmission level Binary input (Low) No. = 16 8 4 2 1 2 3 4 0 1 1 0 1 (ES) 1 0 0 1 1 (SE) 0 1 1 1 0 (F/AT)
Page 20 UX-370ES/SE/F FO-780AT/ES Initial setting Switch setting and function DATA ITEM Remarks ES SE Pseudo ringer sound volume Binary input No. = 8 4 2 1 1 2 3 4 0 1 0 1 Reserved Reserved Reserved Reserved DTMF detection time 50ms 80ms 100ms...
Page 21 UX-370ES/SE/F FO-780AT/ES Initial setting Switch setting and function DATA ITEM Remarks ES SE Reserved Reserved Reserved Busy tone continuous sound detect 5 sec As is PTT time Reserved Busy tone detect continuation sound No detect (during ICM : for internal A.M.) Reserved Busy tone detect intermittent sound detect (during ICM : for internal A.M.)
Page 22 UX-370ES/SE/F FO-780AT/ES Initial setting Switch setting and function DATA ITEM Remarks ES SE Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Activity report print Automatic printout No printout when OPTION...
Page 23 UX-370ES/SE/F FO-780AT/ES Initial setting Switch setting and function DATA ITEM Remarks ES SE Entering DIAG mode by pressing SPEED key Black list (F only) Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved Cut off mode (COPY mode) OPTION A4 paper enable Enable Disable...
Page 24 UX-370ES/SE/F FO-780AT/ES • Soft switch function description SW-A2 No. 7 Communication error treatment in RTN sending mode (Reception) SW-A1 No. 1 Protect from echo Used to determine communication error treatment when RTN is sent by occurrence of a received image error in G3 reception. When it is set to Used to protect from echo in reception.
Page 25 When set to "0", if the other fax is Sharp model, fax transmit the docu- SW-B5 No. 6 ~ No. 8 Reserved ment by H2 mode. When set to "1", even if the other fax is Sharp model, fax transmit the document by MR mode.
Page 26 UX-370ES/SE/F FO-780AT/ES SW-D1 No. 1 ~ No. 4 Number of rings for auto receive SW-F1 No. 1, No. 2 DTMF detect time When the machine is set in the auto receive mode, the number of rings Used to set detect time of DTMF (Dual Tone Multi Frequency) used in before answering can be selected.
Page 27 UX-370ES/SE/F FO-780AT/ES SW-H1 No. 4 Busy tone continuous sound detect time SW-J1 No. 7, No. 8 Ringer volume Set detecting time busy tone continuous sound for 5 seconds or as is Used to adjust ringing volume. PTT. SW-J2 No. 1, No. 2 Speaker volume (3 stages) SW-H1 No.
Page 28 UX-370ES/SE/F FO-780AT/ES SW-L2 No. 5 Reception reduction ratio in case of memory full This model is designed so that the print is started according to the set- ting of SW-L2 No.3 when reception of one page is completed. However, if the memory is filled with data before completion of reception of one page, the print is started with the reduction ratio which is set with this switch.
Page 29: Troubleshooting
UX-370ES/SE/F FO-780AT/ES [3] Troubleshooting Refer to the following actions to troubleshoot any of the problems men- • Apply line equalization SOFT SWITCH A5-1, 2. tioned in 1-4. May be used in case [1] [2] [3] [4]. [1] A communication error occurs. •...
Page 30: Error Code Table
UX-370ES/SE/F FO-780AT/ES [4] Error code table 1. Communication error code table G3 Transmission Code Final received signal Error Condition (Receiver side) Incomplete signal frame Cannot recognize bit stream after flag NSF, DIS Cannot recognize DCS signal by echo etc. Cannot recognize NSS signal (FIF code etc) Disconnects line during reception (carrier missing etc) Disconnects line by fall back Disconnects line during reception of multi page...
Page 31: Chapter 3. Mechanism Blocks
UX-370ES/SE/F FO-780AT/ES 3-2. Automatic document feed CHAPTER 3. MECHANISM BLOCKS 1) Use of the paper feed roller and separation rubber plate ensures er- ror-free transport and separation of documents. The plate spring [1] General description presses the document to the paper feed roller to assure smooth feed- ing of the document.
Page 32 UX-370ES/SE/F FO-780AT/ES 5. Recording block Separation rubber Last page of document (1) General view Back of document RP release plate First page of document Platen roller PO roller PU roller Paper feed spring Pinch roller Paper feed roller Rotation PO gude plate Fig.
Page 33 UX-370ES/SE/F FO-780AT/ES [2] Disassembly and assembly procedures • This chapter mainly describes the disassembly procedures. For the assembly procedures, reverse the disassembly procedures. • Easy and simple disassembly/assembly procedures of some parts and units are omitted. For disassembly and assembly of such parts and units, refer to the Parts List.
Page 34 UX-370ES/SE/F FO-780AT/ES PWB’s, drive unit, AC cord ass’y and Parts list (Fig. 2) speaker Part name Q’ty Part name Q’ty Mechanism unit AC cord ass’y Connector Screw (3×6) Cable ARG cable Control PWB unit Screw (3×10) TEL/Liu PWB unit Drive unit Power supply PWB unit Speaker hold spring Screw (4×6)
Page 35 UX-370ES/SE/F FO-780AT/ES Paper roller etc. and sensor lever Parts list (Fig. 3) Part name Q’ty Part name Q’ty Mechanism unit Platen lock bracket Sheet A Platen lock lever, left P-IN sensor lever B Platen lock lever, right PE sensor lever B Platen lock lever spring PE sensor lever spring B PO roller...
Page 36 UX-370ES/SE/F FO-780AT/ES Drive frame Parts list (Fig. 4) Part name Q’ty Part name Q’ty Part name Q’ty Screw (3×10) Idler gear, 52Z Reduction gear, 4 Motor Reduction gear, 3 Planet gear lever C ass’y Motor plate Reduction gear, 2 Planet gear lever B ass’y Reduction gear, 1 Take up gear Reduction gear, 5...
Page 37 UX-370ES/SE/F FO-780AT/ES Sub frame unit, original paper guide, Parts list (Fig. 5) operation panel unit and CIS unit Part name Q’ty Part name Q’ty Mechanism unit CIS unit Hook switch lever CIS spring Sub frame unit Cover switch spring Screw (3×10) Cover switch lever Original paper guide unit Feed roller shaft...
Page 38 UX-370ES/SE/F FO-780AT/ES Upper cabinet and document guide Parts list (Fig. 6) upper unit Part name Q’ty Part name Q’ty Screw (3×8) Operation panel PWB Document guide upper Direct key unit Mode key Operation panel unit Stop key Screw (2×6) Start key Cable 12 key Upper cabinet...
Page 39 UX-370ES/SE/F FO-780AT/ES Document guide upper Parts list (Fig. 7) Part name Q’ty Part name Q’ty Back roller gear Separate spring Transfer bearing Separator plate Back roller Paper feed spring Pinch roller spring Separator rubber Pinch roller Guide roller Pinch roller shaft Document guide upper Confirm Thing which does not...
Page 40 UX-370ES/SE/F FO-780AT/ES Sub frame, top cover unit RP hopper unit Parts list (Fig. 8) Part name Q’ty Part name Q’ty Part name Q’ty Top cover unit PO pinch roller spring Platen bearing, right Screw (3×10) PO pinch roller Platen roller Sub frame unit PO guide PU shaft...
Page 41 UX-370ES/SE/F FO-780AT/ES Top cover and RP hopper Parts list (Fig. 9) Part name Q’ty Part name Q’ty Release knob RP release plate Screw Rotation plate Pinion gear RP pad Hopper spring C-spring Hopper guide, right Separate plate Hopper guide, left Separate plate sheet TC sheet Separate spring...
Page 42 UX-370ES/SE/F FO-780AT/ES Parts list (Fig. 10) Thermal head Part name Q’ty Part name Q’ty Mechanism unit Thermal head ass’y Screw (3×10) Head spring E Head cover Head spring B Screw (3×10) Head spring F Head earth cable Head cushion Head unit Head frame Film sensor lever spring Head cable...
Page 43 UX-370ES/SE/F FO-780AT/ES Wire treatment Parts list (Fig. 11) Part name Q’ty Screw (3×10) Screw (4×6) Core (F2064) Core (F2063) Screw (3×5) Band Screw (3×6) The Head cable and Panel cable Head Head earth cable pass The CIS cable and earth to th core 2 times.
Page 44: Chapter 4. Diagrams [1] Block Diagram
UX-370ES/SE/F FO-780AT/ES CHAPTER 4. DIAGRAMS [1] Block diagram 4 – 1...
Page 45: Wiring Diagram
UX-370ES/SE/F FO-780AT/ES [2] Wiring diagram 4 – 2...
Page 46: Point-To-Point Diagram
UX-370ES/SE/F FO-780AT/ES [3] Point- to-point diagram CNLIUA(UX-370ES/SE/ CNLIUA(UX-370ES/SE/ FO-780AT/ES) FO-780AT/ES) TELOUT TELOUT TELIN TELIN CNMT TELMUTE TELMUTE TPBD TPBD CI/CIDIN1 CI/CIDIN1 TPAD TPAD CIDIN2/HS CIDIN2/HS TPBD TPBD TX/RX TPAD TPAD MOTOR RXIN RXIN TEL/LIU TXOUT TXOUT CNTH STRB1 STRB1 +24V +24V STRB2 STRB2...
Page 47: Chapter 5. Circuit Description
UX-370ES/SE/F FO-780AT/ES 3. Operational description CHAPTER 5. CIRCUIT DESCRIPTION Operational descriptions are given below: • [1] Circuit description Transmission operation When a document is loaded in standby mode, the state of the docu- ment sensor is sensed via the 1 chip fax engine (FC100M). If the 1.
Page 48: Circuit Description Of Control Pwb
UX-370ES/SE/F FO-780AT/ES 3) 27C020 (IC4): pin-32 DIP (ROM) [2] Circuit description of control PWB EPROM of 2Mbit equipped with software for the main CPU. 1. General description 4) W24258S-70LE (IC3): pin-28 SOP (SRAM) Line memory for the main CPU system RAM area and coding/decoding Fig.
Page 49 UX-370ES/SE/F FO-780AT/ES FC100M (IC9) Terminal descriptions Input Output Pin Description Pin Name Pin No. Type Type (Note: Active low signals have an "n" pin name ending.) CPU Control Interface − MIRQn Modem interrupt, active low. (Hysteresis In, Internal Pullup.) − SYSCLK System clock.
Page 50 UX-370ES/SE/F FO-780AT/ES FC100M (IC9) Terminal descriptions Input Output Pin Name Pin No. Pin Description Type Type Operator Panel Interface OPI[2]/GPIO[23]/ (Pullup, Hysteresis In) Keyboard return [2] or GPIO[23] or SSCLK1 SSCLK1 (for SSIF1) OPI[3]/GPIO[24] (Pullup, Hysteresis In) Keyboard return [3] or GPIO[24] −...
Page 51 UX-370ES/SE/F FO-780AT/ES (2) Panel control block The following controls are performed by the FC100M. • Operation panel key scanning • Operation panel LCD display (3) Mechanism/recording control block • Recording control block diagram (1) OPO[7:0]* TEST OPERATOR OPI[3:0]* BATRSTN PANEL, PANEL/LCD PWB LEDCTL* RESETN...
Page 52 UX-370ES/SE/F FO-780AT/ES FEATURES (4) Modem (R96DFXL-CID) block • Group 3 facsimile transmission/reception INTRODUCTION The ROCKWELL(CONEXANT) R96DFXL-CID MONOFAX modem is a – ITU-TS V.29, V.27 ter, T.30, V.21 Channel 2, T.4 synchronous 9600 bits per second (bps) half-duplex modem with error –...
Page 53 UX-370ES/SE/F FO-780AT/ES R96DFXL-CID (IC6) Hardware Interface Signals Pin Signals – 100-Pin PQFP Pin No. Signal Name I/O Type Pin No. Signal Name I/O Type GP03 IA/OB GP13 IA/OB GP04 IA/OB GP05 IA/OB GP11 IA/OB GP06 IA/OB GP07 IA/OB EN85 0VD2 0VD2 0VD2 IA/OB...
Page 54: Circuit Description Of Tel/Liu Pwb
UX-370ES/SE/F FO-780AT/ES [3] Circuit description of TEL/LIU PWB (UX-370ES/SE/FO-780AT/ES) (1) TEL/LIU block operational description 1) Block diagram TEL/LIU PWB CONTROL PWB E-RLY RCVOL RCVOL RLYCONT RCVOL2 RCVOL2 DPON DPON DPMUTE DPMUTE DPMUTE MODEM (R96DFXL-CID) TXMUTE TXMUTE VOL B SIGMUTE VOL A TXOUT TXOUT TXOUT...
Page 55 UX-370ES/SE/F FO-780AT/ES [Control signals from output port] 2. Noise filter Signal Name Description The noise filter comprises the RF choke coil, L6, L7 and L8. Line connecting relay and DP generating relay 3. Dial pulse generation circuit H: Line make (The circuit is located The pulse dial generation circuit comprises the photo-coupler PC2, L: Line break...
Page 56 UX-370ES/SE/F FO-780AT/ES [Signals for status recognition according to input signals] Signal Name (CNLIUA) Signal Name (CNLIUA) Signal Name Function TELOUT RXIN H:The handset is in the on-hook state. TELIN TELMUTE TXOUT L: The handset is in the off-hook state. CI/CIDIN1 Incoming call (CI) detection signal CIDIN2/HS H:Recording paper does not exist.
Page 57 UX-370ES/SE/F FO-780AT/ES [3] Circuit description of TEL/LIU PWB (UX-370F) (1) TEL/LIU block operational description 1) Block diagram TEL/LIU PWB CONTROL PWB SURGE LINE POLARITY SIGTX DIAL PULSE TXOUT ON-HOOK PROTECTION FILTER GUARD GENERATION LINE BLOCK BLOCK BLOCK BLOCK BLOCK SPEECH CIRCUIT BLOCK DIAL...
Page 58 UX-370ES/SE/F FO-780AT/ES [Control signals from output port] 2. Line filter block Signal Name Description This block is comprises of coil L2. Line connecting relay and DP generating relay 3. Dial pulse generation circuit H: Line make (The circuit is located The pulse dial generation circuit comprises of transistor Q1, the photo- L: Line break in the TEL/LIU PWB.)
Page 59 UX-370ES/SE/F FO-780AT/ES [Signals for status recognition according to input signals] Signal Name (CNLIUA) Signal Name (CNLIUA) Signal Name Function TELMUTE RXIN TXOUT H:The handset is in the on-hook state. CI/CIDIN1 CIDIN2/HS L: The handset is in the off-hook state. Incoming call (CI) detection signal P-IN H:Recording paper does not exist.
Page 60: Circuit Description Of Power Supply Pwb
UX-370ES/SE/F FO-780AT/ES [4] Circuit description of power supply PWB 1. Block diagram 1.6A/250V Noise Rectifying Regulator Filter AC IN Smoothing Switching Circuit Circuit Circuit Circuit (RCC system) 1.6A/250V +24V +24V Circuit Photo Coupler Fig. 7 2-1. Noise filter circuit The overcurrent protection is performed by bringing Q1 to OFF state through detection of voltage increase in the auxiliary winding of T1 by The input noise filter section is composed of L1, C1 and C15 that reduces ZD2, R5 and R6.
Page 61 UX-370ES/SE/F FO-780AT/ES M E M O 5 – 15...
Page 62: Chapter 6. Circuit Schematics And Parts Layout
UX-370ES/SE/F FO-780AT/ES CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT 19.66MHz BATRST 270 x 4 VBAT C166 2200P RESET (2-1I) PWRDWN C167 22P XOUT 270 x 4 32.768kHz SYSCLK SYSCLK (3-2A) MIRQ C186 22P MIRQ R149 +VREF (3-2A) (5-1D) +VREF TSTCLK R132 –VREF (5-1D)
Page 63 UX-370ES/SE/F FO-780AT/ES C216 N.M. R107 6 – 2...
Page 64 UX-370ES/SE/F FO-780AT/ES XTLO XTLI +5VD2 EYEY EYEX 0VD2 EYECLKX 0VD2 SYNCIN2 0VD2 SYNCIN1 0VD2 EYESYNC 0VD2 ECLKIN1 0VD2 EYECLK 0VD2 BYPASS BYBASS (1-3A) 0VD2 0VD2 0VD2 TXLOSS1 0VD1 TXLOSS2 0VD1 TXLOSS3 N.C. +5VD1 VOLB (6-1I) GP11 CSWI LEDON R117 (4-6D) GP21 (5-5F) GP02...
Page 65 UX-370ES/SE/F FO-780AT/ES 6 – 4...
Page 66 UX-370ES/SE/F FO-780AT/ES C228 100P C227 100P C226 100P C225 100P 6 – 5...
Page 67 UX-370ES/SE/F FO-780AT/ES 6 – 6...
Page 68 UX-370ES/SE/F FO-780AT/ES 6 – 7...
Page 69 UX-370ES/SE/F FO-780AT/ES Control PWB parts layout (Top side) 6 – 8...
Page 70 UX-370ES/SE/F FO-780AT/ES Control PWB parts layout (Bottom side) 6 – 9...
Page 71 UX-370ES/SE/F FO-780AT/ES R105 TLP521 R106 R117 BZX79B30V C110 220P TLP521 BZX79B27V R104 RA-501P RA-501P 6 – 10...
Page 72 UX-370ES/SE/F FO-780AT/ES 6 – 11...
Page 73 UX-370ES/SE/F FO-780AT/ES R152 R105 TLP521 R106 R117 BZX79B30V C110 220P TLP521 RA-501P RA-501P 6 – 12...
Page 74 UX-370ES/SE/F FO-780AT/ES 6 – 13...
Page 75 UX-370ES/SE/F FO-780AT/ES R105 R106 R117 BZX79B30V C110 220P TLP521 BZX79B20V R104 RA-501P RA-501P 6 – 14...
Page 76 UX-370ES/SE/F FO-780AT/ES 6 – 15...
Page 77 UX-370ES/SE/F FO-780AT/ES TEL/LIU PWB parts layout (Top side) (UX-370ES/SE/FO-780AT/ES) 6 – 16...
Page 78 UX-370ES/SE/F FO-780AT/ES TEL/LIU PWB parts layout (Bottom side) (UX-370ES/SE/FO-780AT/ES) 6 – 17...
Page 79 UX-370ES/SE/F FO-780AT/ES PC8 R167 JP101 6 – 18...
Page 80 UX-370ES/SE/F FO-780AT/ES C134 C113 C135 R176 C139 C140 C131 C137 C138 D101 C109 BZX79B5V6 R127 R109 R110 C144 0.01 C129 0.01 HZ2A1 HZ2A1 22/50 TLP521 JP114 6 – 19...
Page 81 UX-370ES/SE/F FO-780AT/ES 6 – 20...
Page 82 UX-370ES/SE/F FO-780AT/ES TEL/LIU PWB parts layout (Top side) (UX-370F) 6 – 21...
Page 83 UX-370ES/SE/F FO-780AT/ES TEL/LIU PWB parts layout (Bottom side) (UX-370F) 6 – 22...
Page 84 UX-370ES/SE/F FO-780AT/ES PC-123YS 2200/16 RD2.0ESAB 2SC1741AS 6 – 23...
Page 85 UX-370ES/SE/F FO-780AT/ES Power supply PWB parts layout 6 – 24...
Page 86 UX-370ES/SE/F FO-780AT/ES R7 100K R8 100K R9 100K R5 100K R4 100K R3 100K R10 100K R6 100K R11 100K 6 – 25...
Page 87: Chapter 7. Operation Flowchart
UX-370ES/SE/F FO-780AT/ES CHAPTER 7. OPERATION FLOWCHART [1] Protocol Receive side Transmitter side G3 communication (Document inserted into document sensor during standby) To recording position Document inserted to the reading position (DCS) (DCS) 1st page Next page insert command Cut line printed Cut line printed Recording papor ejected Document ejected...
Page 88: Power On Sequence
UX-370ES/SE/F FO-780AT/ES [2] Power on sequence START CPU initialized MODEM initialized “WAIT A MOMENT” display STOP key ? “MEMORY CLEAR ?” display 3 sec ? STAND-BY START key ? COPY key ? STOP key ? “MEMORY CLEARED” display “MEMORY CLEARED” display 3 sec ? Memory clear Memory clear...
Page 89: Chapter 8. Others
UX-370ES/SE/F FO-780AT/ES CHAPTER 8. OTHERS [1] Service tools 1. List PRICE PARTS CODE DESCRIPTION Q’TY RANK C P W B S 3 0 0 2 S C S 1 Extension board unit (Control PWB) C P W B F 3 0 0 3 S C S 1 Extension board unit (TEL/LIU PWB) P S H E Z 3 3 5 4 S C Z Z Shading wave memory standard paper...
Page 90 UX-370ES/SE/F FO-780AT/ES 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.
Page 91 UX-370ES/SE/F FO-780AT/ES 3. Shading paper The white and black basis is applied to remember the shading wave- form. Be sure to perform this operation when replacing the battery or replacing the control PWB. Execute in the shading mode of DIAG mode. UX-300 SERIES SHADING WAVE MEMORY STANDARD PAPER (PSHEZ3354SCZZ) 8 –...
Page 92: Ic Signal Name
UX-370ES/SE/F FO-780AT/ES [2] IC signal name CONTROL PWB UNIT IC3: VHiW24258S7LE(W24258S-70LE) IC5: VHiULN2003ANS (ULN2003A) 1C 2C 3C 4C 5C 6C 7C COM (TOP VIEW) 16 15 14 13 12 11 10 CS2/OE Pin name Signal Address input A0~A14 CS1/CS2 Chip enable 1B 2B 3B 4B 5B 6B 7B Write enable Write enable...
Page 93 UX-370ES/SE/F FO-780AT/ES IC12: VHiNJM2902M-1 (NJM2902M) IC4: VHi27C20012MX (27C020) (TOP VIEW) Pin name Signal A OUTPUT D OUTPUT A0~A17 Address input Chip enable A-INPUT D-INPUT – + – Output enable Ground Program D+INPUT A+INPUT D0~D7 Data output (Program input) +5V power +12.5V power(*) (*) Only in the program mode B+INPUT...
Page 94 UX-370ES/SE/F FO-780AT/ES IC6: VHiR96CiDFC1M (R96DFXL-CID) GP03 0VD2 GP04 CTSn GP05 0VD2 GP06 GP07 GP17 0VD2 GP16 SYNCIN2(G2XCLK) 0VD2 DCLKI(IRQ2n) +5VD1 YCLK XCLK XTLO XTLI PORin 0VD2 0VD2 EN85n RTSn GP11 RAMPIN SEE NOTE 1 GP13 +5VD2 0VD1 SWGAINI ECLKIN1 SYNCIN1 READn WRITEn IRQn...
Page 95 UX-370ES/SE/F FO-780AT/ES IC9: VHiR96CiDFC1M (FC100M) SM0/GPO4 SM1/GPO5 SM2/GPO6 SM3/GPO7 START CLK1 CLK1N CLK2 VIDCTL1 VIDCTL0 GPIO0/VID0 GPIO1/VID1 GPIO2/VID2 GPIO3/VID3 GPIO4/VID4 GPIO5/VID5 GPIO6/VID6 GPIO7/VID7 GPIO8/VDC0 GPIO9/VDC1 GPIO10/VDC2 GPIO [11]/BE/SERINP GPIO12/CS2N/SCLK PCLK/DMAACK GPIO13/CS3N/TXD PDAT GPIO14/CS4N/RXD PLAT GPIO15/CS5N GPIO16/IRQ8 STRB3 GPIO17/IRQ5N STRB2 GPIO18/IRQ10N STRB1 GPIO19/RDY/SEROUT STRB0...
Page 96 UX-370ES/SE/F FO-780AT/ES IC1: RH-iX2129SCZZ (M514800C-70J) PIN DESCRIPTION 28 VSS PIN NAME PIN NAME ADDRESS INPUT COLUMN ADDRESS STROBE I/O0 27 I/O7 (LOW/REFRESH A0~A3 A0~A9 READ/WRITE INPUT COLUMN A0~A3) I/O1 26 I/O6 OUTPUT ENABLE I/O0~I/O7 DATA I/O I/O2 25 I/O5 POWER (+5V) LOW ADDRESS STROBE I/O3 24 I/O4...
Page 97 UX-370ES/SE/F FO-780AT/ES PARTS GUIDE UX-370 FO-780 MODEL SELECTION CODE COUNTRY UX-370ES/FO-780ES Spain UX-370SE Sweden UX-370F France FO-780AT Austria CONTENTS Packing material & Accessories Cabinet, etc. Control PWB unit Top cover and sub frame TEL-Liu PWB unit Upper cabinet (UX-370ES/SE/FO-780AT/ES) TEL-Liu PWB unit...
Page 98: Cabinet, Etc
UX-370ES/SE/F FO-780AT/ES [1] Cabinet, etc. TOP COVER/ SUB FRAME B2x2 B2x2 DOCUMENT GUIDE UPPER CABLE DRIVE UNIT B2x2 B2x9 – 1 –...
Page 99 UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [1] Cabinet,etc. DCEKP478BFF15 Operation panel unit [370ES] DCEKP478BFF21 Operation panel unit [370SE] DCEKP478BFF17 Operation panel unit [370F] DCEKP478BFF19 Operation panel unit [780AT] DCEKP478BFF16 Operation panel unit [780ES] QCNW-217AXHZZ Panel cable MLEVP2297XHZZ Cover switch lever MSPRT3069FFFJ...
Page 100: Top Cover And Sub Frame
UX-370ES/SE/F FO-780AT/ES [2] Top cover and sub frame PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [2] Top cover and sub frame GCOVA2403FFSC Top cover [370ES/SE/F] GCOVA2403FFSA Top cover [780AT/ES] JKNBP2091XHZZ Release knob MSPRC2832FFZZ Hopper spring NGERP2318XHZZ Pinion gear PGIDM2533XHSC Hopper guide,left [370ES/SE/F] PGIDM2533XHSA...
Page 101: Upper Cabinet
UX-370ES/SE/F FO-780AT/ES [3] Upper cabinet FO-780 ONLY FO-780 ONLY B1x5 PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [3] Upper cabinet GCABA2324XHSS Upper cabinet [370ES] GCABA2324XHSQ Upper cabinet [370SE] GCABA2324XHSR Upper cabinet [370F] GCABA2324XHST Upper cabinet [780AT] GCABA2324XHSW Upper cabinet [780ES] JBTN-2242XHSC 12 key...
Page 102: Document Guide Upper
UX-370ES/SE/F FO-780AT/ES [4] Document guide upper PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [4] Document guide upper LPLTG2911XHZZ Separator rubber LPLTP2908XHZZ Separator plate MSPRC3071FFFJ Pinch roller spring MSPRP3079XHFJ Paper feed spring MSPRT2951FFZZ Separate spring NBRGP2141XHZZ Transfer bearing NGERH2445XHZZ Back roller gear NROLP2334XHZA Pinch roller NROLP2406XHZZ...
Page 103: Drive Unit
UX-370ES/SE/F FO-780AT/ES [5] Drive unit PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [5] Drive unit CGERH2459XH01 Slip gear ass’y CLEVP2298XH01 Planet gear lever A ass’y CLEVP2299XH01 Planet gear lever B ass’y CLEVP2300XH01 Planet gear lever C ass’y CLEVP2303XH01 Planet gear lever D ass’y LFRM-2200XHZZ Drive frame LPLTM2994XHFW...
Page 104: Packing Material & Accessories
UX-370ES/SE/F FO-780AT/ES [6] Packing material & Accessories TAPE TAPE TAPE AC CORD TAPE PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [6] Packing material & Accessories SPAKC031BFFZZ Packing case [370ES/SE/F] SPAKC052BFFZZ Packing case [780AT/ES] TLABM4972FFZZ Box label [370ES/SE/F] TLABM4928FFZZ Box label [780AT/ES] TINSS3977FFZZ Operation manual...
Page 105: Control Pwb Unit
UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [7] Control PWB unit UBATL2049SCZZ Battery(CR2032T23) [BAT1] VCEAGA1EW476M Capacitor(25WV 47µF) [C1] VCEAGA1HW105M Capacitor(50WV 1µF) [C2] VCEAGA1EW476M Capacitor(25WV 47µF) [C3] VCEAGA1HW106M Capacitor(50WV 10µF) [C4] VCEAGA1HW106M Capacitor(50WV 10µF) [C5] VCEAGA1HW226M Capacitor(50WV 22µF) [C6] VCEAGA1HW107M Capacitor(50WV 100µF)
Page 106 UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [7] Control PWB unit VCKYTV1CF105Z Capacitor(16WV 1µF) [C178] VCKYTV1CF105Z Capacitor(16WV 1µF) [C179] VCCSTV1HL102J Capacitor(50WV 1000PF) [C180][370ES/SE/780AT/ES] VCKYTV1HB681K Capacitor(50WV 680PF) [C181] VCKYTV1CF105Z Capacitor(16WV 1µF) [C182][370ES/SE/780AT/ES] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [C182][370F] VCCSTV1HL102J Capacitor(50WV 1000PF) [C183] VCKYTQ1HF104Z...
Page 107 UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [7] Control PWB unit VHIMC34119DR2 IC(MC34119) [IC10] VHIHCF4053M1T IC(HCF4053B) [IC11] VHINJM2902M-1 IC(NJM2902M) [IC12] Resistor(1/10W 120Ω ±5%) VRS-TS2AD121J [L100] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [L101] RCILZ2145XHZZ Coil(Z2145) [L102] RCILZ2145XHZZ Coil(Z2145) [L103] RCILZ2104SCZZ Coil(Z2104) [L104] RCILZ2145XHZZ...
Page 108 UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [7] Control PWB unit Resistor(1/10W 3KΩ ±5%) VRS-TS2AD302J [R170] Resistor(1/10W 100KΩ ±5%) VRS-TS2AD104J [R171] Resistor(1/10W 220KΩ ±5%) VRS-TS2AD224J [R172] Resistor(1/10W 20KΩ ±5%) VRS-TS2AD203J [R173] Resistor(1/10W 1KΩ ±5%) VRS-TS2AD102J [R174] Resistor(1/10W 20KΩ ±5%) VRS-TS2AD203J [R175] Resistor(1/10W 0Ω...
Page 109: Tel-Liu Pwb Unit(Ux-370Es/Se/Fo-780At/Es)
UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [7] Control PWB unit (Unit) CPWBS3026FF03 Control PWB unit(Without ROM) [370F] [8] TEL-Liu PWB unit(UX-370ES/SE/FO-780AT/ES) VHVRA501PV6-1 Varistor(RA-501P-V6-2) [AR1] VHVRA501PV6-1 Varistor(RA-501P-V6-2) [AR2] QCNW-4753XHZZ Cable [ARG] VCEAGA1HW335M Capacitor(50WV 3.3µF) [C1][370ES/780ES] VCEAGA1HW475M Capacitor(50WV 4.7µF) [C1][370SE/780AT] RC-FZ2023SCZZ Capacitor(250WV 1.5µF)
Page 110 UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [8] TEL-Liu PWB unit(UX-370ES/SE/FO-780AT/ES) VHINJM2904M-2 IC(NJM2904M) [IC103] RCILZ2144SCZZ Coil(Z2144) [JP103] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [JP104] RCILZ2144SCZZ Coil(Z2144) [JP105] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [JP106] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [JP107][370ES/780AT/ES] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [JP108][370ES/780AT/ES] RCILF2125SCZZ...
Page 111: Tel-Liu Pwb Unit(Ux-370F)
UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [8] TEL-Liu PWB unit(UX-370ES/SE/FO-780AT/ES) Resistor(1/10W 22KΩ ±5%) VRS-TS2AD223J [R145] Resistor(1/10W 1.8KΩ ±5%) VRS-TS2AD182J [R147][370ES/780ES] Resistor(1/10W 910Ω ±5%) VRS-TS2AD911J [R147][370SE] Resistor(1/10W 820Ω ±5%) VRS-TS2AD821J [R147][780AT] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R148] Resistor(1/10W 12KΩ ±5%) VRS-TS2AD123J [R149][370ES/780AT/ES] Resistor(1/10W 16KΩ...
Page 112 UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [9] TEL-Liu PWB unit(UX-370F) VCKYTQ1HB473K Capacitor(50WV 0.047µF) [C101] VCKYTQ1HB223K Capacitor(50WV 0.022µF) [C102] VCKYTQ1HB473K Capacitor(50WV 0.047µF) [C103] VCKYTV1HB102K Capacitor(50WV 1000PF) [C104] VCKYTV1HB103K Capacitor(50WV 0.01µF) [C105] VCKYTQ1HB102K Capacitor(50WV 1000PF) [C106] VCKYTV1EF104Z Capacitor(25WV 0.1µF) [C107] VCKYTV1HB122K Capacitor(50WV 1200PF)
Page 113: Power Supply Pwb Unit
UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [9] TEL-Liu PWB unit(UX-370F) Resistor(1/10W 3.9KΩ ±5%) VRS-TS2AD392J [R102] Resistor(1/10W 130KΩ ±5%) VRS-TS2AD134J [R103] Resistor(1/10W 0Ω ±5%) VRS-TS2AD000J [R104] Resistor(1/10W 270Ω ±5%) VRS-TS2AD271J [R105] Resistor(1/10W 680Ω ±5%) VRS-TS2AD681J [R106] Resistor(1/10W 560Ω ±5%) VRS-TS2AD561J [R107] Resistor(1/10W 1MΩ...
Page 114 UX-370ES/SE/F FO-780AT/ES PRICE PART DESCRIPTION PARTS CODE RANK MARK RANK [10] Power supply PWB unit 0CBUGFF223JS/ Capacitor(ECQB1H223KM3) [C5] 0CBUGCM332BJ/ Capacitor(DE1410-1E332M-KX) [C7] 0CBUGAE331TS/ Capacitor(LXJ35VB330(M)) [C8] 0CBUGFF474JA/ Capacitor(ECQV1H474JL3) [C9] 0CBUGZ1188ZZ/ Capacitor(16YXG2200M(10X28L)) [C10] 0CBUGCF104CQ/ Capacitor(UP050F104Z-B) [C11] 0CBUGCS101AA/ Capacitor(DD05-989B101K500) [C13] 0CBUGFM104KD/ Capacitor(PA104-ZC) [C15] 0CBUGAB101RV/ Capacitor(KME10VB100(M)) [C16] 0CBUGFF102BQ/...
Page 115 UX-370ES/SE/F FO-780AT/ES I n d e x PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE MARK MARK MARK RANK RANK RANK RANK RANK RANK LPLTP2908XHZZ PGIDM2531XHZZ 1-36 CCNW-202AFF01 LPLTP2997XHZZ 2-25 PGIDM2532XHZZ 1-37 CGERH2444XHY1 1-10 LPLTP2998XHZZ 2-26 PGIDM2533XHSA CGERH2459XH01 LPLTP3001XHSA...
Page 116 UX-370ES/SE/F FO-780AT/ES PRICE PRICE PRICE PART PART PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK RANK MARK RANK RCRSB0297AFZZ 7-315 VCCCTV1HH101J 7-99 VCKYTQ1HB392K 8-39 ″ RCRSB2122SCZZ 7-314 7-101 VCKYTQ1HB393K 8-36 ″ RCRSQ1005LCZZ 7-313 7-103 VCKYTQ1HB473K 8-22 ″...
Page 117 UX-370ES/SE/F FO-780AT/ES PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE MARK MARK MARK RANK RANK RANK RANK RANK RANK VCKYTV1HB102K 7-110 VHEBZX79B2V4A 8-207 VRS-TP2BD390J 8-115 ″ 7-111 VHEBZX79B20/A 8-193 VRS-TS2AD000J 7-85 ″ ″ ″ 7-112 8-196 7-98 ″...
Page 118 UX-370ES/SE/F FO-780AT/ES PRICE PRICE PRICE PART PART PART PARTS CODE PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK RANK MARK RANK VRS-TS2AD103J 8-168 VRS-TS2AD273J 8-129 VRS-TS2AD621J 9-106 ″ ″ VRS-TS2AD104J 7-191 9-116 9-108 ″ ″ ″ 7-235 9-119 9-132 ″...
Page 119 UX-370ES/SE/F FO-780AT/ES PRICE PART PRICE PART PRICE PART PARTS CODE PARTS CODE PARTS CODE MARK MARK MARK RANK RANK RANK RANK RANK RANK 0CBUBDBE270D/ 10-64 0CBUBDBE6R2C/ 10-68 0CBUBDBM300D/ 10-67 0CBUCB0167AZ/ 10-27 0CBUDC0163CZ/ 10-32 ″ 10-33 0CBUDC0232AK/ 10-61 0CBUEEB101CT/ 10-43 0CBUEEB152CT/ 10-44 0CBUEEB223CT/ 10-45...
Page 120 RANK MARK RANK © COPYRIGHT 1999 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

This manual is also suitable for:

Ux-370 Fo-780 Ux-370f Fo-780at Fo-780es

Sharp UX-370SE Service Manual

Service Manual Facsimile

Chapter 1. General Description

Chapter 2. Adjustments

Chapter 3. Mechanism Blocks

CHAPTER 4. DIAGRAMS [1] Block Diagram

Chapter 5. Circuit Description

Chapter 6. Circuit Schematics and Parts Layout

Chapter 7. Operation Flowchart

Chapter 8. Others

Parts Guide

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Summary of Contents for Sharp UX-370SE

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Table of Contents