Casio Exilim EX-S500 Service Manual

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3. Measurementa) Connect S2281-01 to the camera’s LCD monitor (see below).AC Waveforms appear on the monitor screen of the oscilloscope.* Change the Rf range of C2719 in case the range does not match.Photo diodeS2281-01INPUTPhoto sensor ampOUTPUTOscilloscopeCAMERABNC-BNC cableLCDMinimize theripple componentsb) After AC waveforms of the oscilloscope appear, minimize it by pressing the camera’s up/down buttons(see the picture).Make sure to visually check if it has been minimized.[UPPER] button[DOWN] buttonAfter it has been minimized, press SET key.The screen in the right figure appears and the new VCOM iswritten (VCOM adjustment is finished.).OK -> Register WriteVCOM = 0xcaADJ DATA SET!Return to the previous display by pressing MENU or PW key.This value is only an example, and differs by products.— 16 —
CURRENT CONSUMPTION(1) Current consumption (DC in = 3.70 ± 0.1 [V])• Make sure that current consumption is less than 250 mA in PLAY mode.• Make sure that current consumption is less than 360 mA in REC mode.• Make sure that current consumption is less than 160 µA when power is turned OFF.(2) The battery indicator changes according to the voltages as follows.• DC in = less than 3.76 ± 0.05 V: (PLAY mode)• DC in = less than 3.66 ± 0.05 V: (PLAY mode)• DC in = less than 3.51 ± 0.05 V: (PLAY mode)THE COUNTERMEASURE FOR "SYSTEM ERROR"System error may occur when the battery is removed while data is written to the internal memory.■ PROCEDURE1. Initialize the system.a) Enter the TEST mode.b) Select "3:ROM UPDATE" and press SET button.c) Next, select "5:SYSTEM INITIAL" and press SET button.d) The following message appears.SYSTEM INITIALIZESTART ...PUSH OK KEY?e) Press SET button and System is initialized."SUCCESS !" appears on the monitor.2. Write firmware.Refer to the "1. To update the firmware version" on page 7.Write the firmware.If the TEST mode boots automatically, change "USB TCC ON" to "USB TCC OFF".Replace the Main PCB if the camera does not recover.— 17 —
Page 2 and 3: CONTENTSSPECIFICATIONS ............
Page 4 and 5: DeleteSingle-file, all files (with
Page 6 and 7: Rechargeable Lithium Ion Battery (N
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
Page 14 and 15: 2. How to use ADJ Tool when replaci
Page 16 and 17: VCOM DC ADJUSTMENT■ PurposeReadju
Page 20 and 21: DISASSEMBLY■ To remove the case1.
Page 22 and 23: 9. Remove the switch unit.The switc
Page 24 and 25: EXPLODED VIEW1S32451-21-1S5 ✕531-
Page 26 and 27: N ItemPartsQTYPriceParts NameSpecif
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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