Casio Exilim EX-S500 Service Manual

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VCOM DC ADJUSTMENT■ PurposeReadjust the VCOM value to minimize the flicker of the LCD after replacing the LCD or the main PCB.■ Necessary tools1. Camera (Charge its battery fully)2. Photo diode (S2281-01) : See Fig 1.3. Photo sensor amp (C2719) : See Fig 2.4. BNC-BNC cable (E2573) x 2 : See Fig 3.5. 9-volt alkaline battery (6LR61Y) x 2 : See Fig 4.6. Oscilloscope■ Preparation1. The three tools can be obtained from the following global site.Photo diode (S2281-01)Photo sensor amp (C2719)BNC-BNC cable (E2573)www.hamamatsu.com/2. 9-volt alkaline battery is a standard one, but can be obtained from the following global site as well.www.panasonic.co.jp/global/Fig1 Photo Diode (S2281-01)Fig2 Photo Sensor Amp (C2719)Fig3 BNC-BNC Cable (E2573)Fig4 6LR61Y— 14 —
■ Procedure1. Camera settinga) Turn the power on while pressing “BS” and “UPPER”.After pressing “DOWN” key twice, press “BS” and “MENU”.Select "2:USB TCC TEST", and press "SET" button.Select "1:USB TCC ON", and press "RIGHT" button ,"RIGHT"button and "SET" button.Figure (a) appears.Figure (a)1: VERSION INFO2: USB TCC TEST3: ROM UPDATE4: LAST MEMORY5: FORMAT6: HARD TEST7: IMAGE TEST8: ADJ TEST9: TEST SCRIPTb) Select “8 : ADJ_TEST” and then press SET.(See Figure (b).)Figure (b)1: ADJ STAT CLR2: LCD3: LENS...c) Next, select “2. LCD” and then press SET.(See Figure (c).)Figure (c)1:VCOM...OKd) Pressing SET causes the right figure to appear.(See Figure (d).)Figure (d)OK -> Register WriteVCOM = 0xcaThis value is an example and differs by products2. Connecting the TOOLa) Place two 9-volt alkaline batteries in C2719.b) Connect the output terminal of C2719 to the channel terminal of the oscilloscope by the BNC-BNCcable.c) Connect the input terminal to the Photo Diode by the BNC cable.d) Turn the oscilloscope and C2719 on.* Pull the ON/OFF switch of C2719 this way and raise/lower it. (See below Figure.)— 15 —
Page 2 and 3: CONTENTSSPECIFICATIONS ............
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Page 8 and 9: TEST MODENote: Never perform the me
Page 10 and 11: 2. How to restore the firmware1. Pr
Page 12 and 13: ADJ TOOL■ IntroductionMake sure t
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Page 20 and 21: DISASSEMBLY■ To remove the case1.
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Page 24 and 25: EXPLODED VIEW1S32451-21-1S5 ✕531-
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Page 28 and 29: MAIN PCB (BOTTOM VIEW)— 26 —
Page 31 and 32: — 29 —MAIN PCB (3/3)PWCTL0PWCTL

Casio Exilim EX-S500 Service Manual

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