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File name:SHARP UX108-118S.part5.rar
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MD5 Checksum:15edc44ad22947356005dfc15bf6c519




Original Chassis:UX108-118S
Descr:SHARP UX108-118S FAX Machine.part5
Group:Electronics > Other >
Uploaded:2004-03-09 16:09:21
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Ux108S-DESCR.pdfUX-108H UX-178H [3] Circuit description of TEL/LIU PWB (1) TEL/LIU block operational description 1) Block diagram TEL/LIU PWB CML CONTROL PWB TEL LINE SURGE PROTECTION BLOCK LINE FILTER BLOCK ON-HOOK BLOCK POLARITY GUARD BLOCK DIAL PULSE GENERATION BLOCK TXOUT SPEECH CIRCUIT BLOCK RXIN 0 1 SIGTX EXT. DIAL CONTROL BLOCK CI DETECTOR MODEM (R96DFXL-CID) SIGRX RX MUTE HANDSET VOL A VOL B VOL C BZCONT 0 1 SPEAKER GAIN-C RX MUTE XFC3 BZCONT SP MUTE CML DP ON CI RHS +5V +24VA DG DP ON CI RHS Fig. 5 2) Circuit description The TEL/LIU PWB is composed of the following 9 blocks. 1. Surge protection circuit 2. Line filter block 3. Dial pulse generation circuit 4. On-hook circuit 5. Matching transformer 6. Hybrid circuit 7. Signal selection 8. Cl detection circuit 9. Power supply and bias circuit 3) Block description 1. Surge Protection circuit This circuit protects the circuit from the surge voltage occurring on the telephone line. · The AR1, AR2 protects the circuit from the
Ux108S-DIAGNOSTIC.pdfUX-108H UX-178H [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. FWV0 (FXN0 ) After 2 sec: DIAG MODE FWV0 (UX-108H) FXN0 (UX-178H) Then press the START key. Select the desired item with the (Diag·specifications) key or the # key or select with the rapid key. Enter the mode with the START key. FUNC 9 8 7 FWV0 FXN0 DIAG MODE START Soft switch mode ROM & RAM check Aging mode Panel check mode Check pattern mode START START START START START 1 2 3 4 5 10 9 8 7 6 START START START Auto feeder mode All black mode Shading mode START Memory clear mode START Signal send mode If the diag mode cannot be set, repeat the diag mode operation, performing the following operation. After the power is turned on and "WAIT A MOMENT" is indicated, press the STOP key. STOP KEY "Power ON" + + START KEY In relation with the process response (request from Production Engineer
Ux108S-GENERAL.pdfUX-108H UX-178H CHAPTER 1. GENERAL DESCRIPTION [1] Specifications Automatic dialing: Fax paper: Rapid Key Dialing: 10 numbers Speed Dialing: 20 numbers Initial starter roll (included with fax machine): 10 m roll Recommended replacement roll: FO-40PR6(R) 50 m roll Automatic document feeder: 10 sheets max. Paper cutting method: Modem speed: Transmission time* : Display: Reception modes: Resolution: UX-108: Tear off by hand UX-178: Automatic cutter 9600 bps with automatic fallback to 7200, 4800, or 2400 bps Approx. 15 seconds 16-digit LCD display FAX, TEL, TEL/FAX, A.M. Horizontal: 8 dots/mm Vertical: Standard: 3.85 lines/mm Fine/Halftone: 7.7 lines/mm Super fine (transmission only) : 15.4 lines/mm Thermal recording 64 levels/16 levels Public switched telephone network/PBX ITU-T (CCITT) G3 mode Half-duplex, desktop transceiver Modified Huffman and Sharp special mode (MR/MH/UNIQUE) Sheet-feeder CIS (Contact Image Sensor) 210 mm max. Automatic feeding: Width 148 to 216 mm Length 140 to 2

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