Summary of 770
Page 1
770 service manual.
Page 2: Table of Contents
Table of contents s e r v i c e warning · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 1 a. Important safety instruction · · · · · · · · · · · · · · · · · · · · · 1 b. Specifications · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ...
Page 3: Warning
Warning to prevent from fire or shock hazard,do notexpose monitor to any rain or any form of water.High voltage is inside the monitor so please do not remove the back cover of the cabinet if you are not a qualified monitor engineer.Contact the local dealer or the nearest proview branch office if you...
Page 4: B. Specifications
Other controls may result in damage and will often require extension work by a qualified technician to restore the product to normal operation. E. If the product has been dropped or the cabinet has been damaged. F. If the product exhibits a distinct change in performance,indicating a need for servic...
Page 5: C.Timing Chart
C.Timing chart video back porch active display front porch sync. Sync-width total preset modes vga 720x400 vga 640x480 vesa 640x480 vesa 640x480 vesa 800x600 vesa 800x600 vesa 800x600 pixel clock (mhz) 28.325 25.175 31.500 31.500 36.000 40.000 50.000 h-frequency (khz) 31.472 31.469 37.861 37.500 35....
Page 6
Preset modes vesa 800x600 vesa 1024x768 vesa 1024x768 vesa 1024x768 vesa 1280x1024 vesa 1280x1024 pixel clock (mhz) 49.500 65.000 75.000 78.750 108.00 135.00 h-frequency (khz) 46.875 48.363 56.476 60.023 63.981 97.976 h-total (µs) 21.333 20.677 17.707 16.660 15.630 12.540 h-active display (µs) 16.16...
Page 7: D. Control Location
D. Control location font control panel 1. Menu button 2. Select button 3. Auto button 4. Power button 5. Led (power display) rear panel.
Page 8
1. Vga signal cable 2. Power jack 3. Line in jack.
Page 10: E. Conduction View
E. Conduction view main board (component side).
Page 11
Main board (component side).
Page 12
Main board (solid side).
Page 13
Control board (component side) control board (solid side).
Page 14: Inverter Board
Inverter board.
Page 15: F. Adjustment Procedure
F. Adjustment procedure item program menu. ﹟test meter ﹡test point ﹫pattern operation check value a b+ check ﹟digital voltmeter ﹡cn7 ﹫crosshatch pattern (31.5khz,640x480) 1. Plug power cable into the adapter, check adapter power indicator light up green. 2. Make sure the voltage of the power plug ( ...
Page 16
G. Trouble shooting hints no no yes yes yes yes no no high voltage ! No yes yes no no yes no display ( black ) led on ? Push the power on/off switch led color change ? Check main board u2/pin2 hi / lo under push power sw? Back light on? To step 2 make sure the connection of inverter is fine +12v ? C...
Page 17
No yes yes no yes no b hi / lo under push power sw? Change the inverter display ? Nice job ! To step 2 a check the connection of cn8 cable display ? Nice job ! Change the main board change the main board.
Page 18
No yes no yes yes yes yes no no yes step 2 check the main board 12v ? +5.0 v ? Check u10,u11,tr1 h/v input signal ? Check the main board u7 / pin 5 ? Change u9 check h/v signal display ? Nice job ! Change signal cable check f1,d5 check u7.
Page 19
No yes no yes no yes yes no no yes no display (white) check the main board 5v ? +3.3v ? H/v input signal ? Check the main board u9/pin3 ? Change u9 check h/v signal display ? Nice job ! Change signal cable check u10,u11,tr1 check u8,u13 check 3.3v circuit.
Page 20: H. Replacement Parts List
H. Replacement parts list 770 no parts no. Description part location q’ty 1 988-1l0-6001c sh770 2 002-001-cepov-a ce declaration 1 3 002-g01-fujit fujitsu warranty card 1 4 002-l03-fujit sh770 user’s manual for fujitsu 1 5 003-101-tco9 all series tco99 label for carton 1 6 003-403-fujit sh770 carton...
Page 21
42 630-006-1008 jwt a2001 pitch 2.00mm 6p. Cn4, 1 43 630-006-1009 jwt a2001 pitch 2.00mm 6p. Cn3, 1 44 630-008-c001 jst 1.5mm header zr s8b-zr. Cn2, 1 45 630-030-8001 30pin 1.25mm pitch smd cn1 1 46 745-330-2062-3 line choke 33uh tl1, 1 47 780-112-8000 bead tl2, 1 48 852-00m-sh770 sh770 m/b mrt ic a...
Page 22
83 481-lcc-0440 socket 44pin plcc. Socket for u2, 1 84 506-0ai-c1084 smd reg. Aic1084cm 3.3v 5a. U8, 1 85 506-a0i-cy33 aic1117cy-33 3.3v 900ma smd u13 1 86 506-0ap-4835 apa4835ri/anpec audio amp. U15, 1 87 506-0cs-5828 lvd (8bit 56pin) tssop u3,u4 2 88 506-2ai-c1578 ic dc to dc ic.Aic1578(smd). U11,...
Page 23
127 123-003-sh570 sh570 bracket spring 1 128 132-300-sh570 spring ass'y 1 129 101-003-3033 screw m3*3 iso 1 130 132-001-sh570 sh570 lock spring 1 131 820-000-7tst sh770 stand ass’y 132 123-700-7tst sh770 base ass'y 1 133 123-000-sh570 sh570 hinge cover a6063 1 134 123-002-sh770 sh770 base pin sus304...
Page 24
171 121-00l-sh770 lcm bracket left secc t= 1.0mm 1 172 121-00r-sh770 lcm bracket right secc t= 1.0mm 1 173 123-003-sh770 shield cover 1 174 123-00l-sh770 sh770 speaker lock left 1 175 123-00r-sh770 sh770 speaker lock right 1 176 126-001-sh570-a sh570 cn contact toshiba 4 177 126-006-alm1 sh770 alumi...
Page 31
I. Block diagram orion b block diagram b 1 1 tuesday, october 23, 2001 title size document number rev date: sheet of hsync vsync d-de blk-on/off sda brightness ddc-scl ddc-sda scl power adapter 12v switch power supply and 3v 5v 12v c o n n e n t vga-in 12pin d.D.C 24c21 eeprom adc scaler lvds lvds m...
Page 32
J. Schematic diagram 200-100-sh770 s4 mvp2(vga) proview electronics (taiwan) co., ltd. 6f, no.1, pau-sheng rd., yung-ho city, taipei county, taiwan r.O.C. Tel: 886-2-2231-6789 fax: 886-2-2232-4613 1 6 tuesday, september 10, 2002 title size document number rev date: sheet of vdd vdd vcc red+ 2 blue+ ...
Page 33
200-100-sh770 s4 mvp2(scaler) proview electronics (taiwan) co., ltd. 6f, no.1, pau-sheng rd., yung-ho city, taipei county, taiwan r.O.C. Tel: 886-2-2231-6789 fax: 886-2-2232-4613 2 6 tuesday, september 10, 2002 title size document number rev date: sheet of vdd 3.3v-pll 3.3v-ana vdd vdd vdd 3.3dig-pl...
Page 34
200-100-sh770 s4 mvp2(audio) proview electronics (taiwan) co., ltd. 6f, no.1, pau-sheng rd., yung-ho city, taipei county, taiwan r.O.C. Tel: 886-2-2231-6789 fax: 886-2-2232-4613 3 6 tuesday, september 10, 2002 title size document number rev date: sheet of vcc vcc vcc opvcc gnd gnd gnd aud_off 4 pwm1...
Page 35
200-100-sh770 s4 mvp2(mcu) proview electronics (taiwan) co., ltd. 6f, no.1, pau-sheng rd., yung-ho city, taipei county, taiwan r.O.C. Tel: 886-2-2231-6789 fax: 886-2-2232-4613 4 6 tuesday, september 10, 2002 title size document number rev date: sheet of vcc vcc-mcu vcc vcc-mcu vcc vcc vcc vcc vcc vc...
Page 36
200-100-sh770 s4 mvp2(output) proview electronics (taiwan) co., ltd. 6f, no.1, pau-sheng rd., yung-ho city, taipei county, taiwan r.O.C. Tel: 886-2-2231-6789 fax: 886-2-2232-4613 5 6 tuesday, september 10, 2002 title size document number rev date: sheet of vdd vdd vdd vdd vdd vdd lcdvdd lcdvdd vcc r...
Page 37
200-100-sh770 s4 mvp2(power) proview electronics (taiwan) co., ltd. 6f, no.1, pau-sheng rd., yung-ho city, taipei county, taiwan r.O.C. Tel: 886-2-2231-6789 fax: 886-2-2232-4613 6 6 tuesday, september 10, 2002 title size document number rev date: sheet of vcc 3.3v-pll 3.3v-ana vcc 12va 3.3v vdd 3.3d...
Page 39
Memu.