Sharp GX30 Service Manual - Page 71
Flash light does not work., PERFORMANCE CHECK, AND FIRMWARE UPGRADE see
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(From page 2-62) D CONFIDENTIAL CN701 is defective. Camera relay FPC is broken. GX30 Is -8 V applied to pin 36 of camera unit? YES YES NO Are C740 and C726 good in appearance and mounted prop- erly? NO C740 and C726 are defective. Is signal properly sent from CAMCK (TP712)? YES IC106, parts of the control signal line, CN102, and CN702 are defective. NO IC704 is defective. 15. Flash light does not work. Click the "Performance check adjustment" button on SPST to perform LED check. See in which color of RGB the flash does not work. * For operations and settings for SPST, refer to "ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE UPGRADE" (see page 2-1). The control line between IC707 and IC704 is defective. Or IC707 and IC704 are defective. Which color? Red only Blue, green, or all three colors YES Replace with a battery of 3.8 - 3.9 V, and connect the charger to the external connector. Does the flash light? NO CN103 pin 29 and IC707 pin 10 are connected improperly, or IC707 is defective. Is VBAT voltage applied to C714? NO Is fuse (FS701) in good appearance, mounted properly, and is there conduction? YES Is 3 V applied to TP728? YES Does the camera work properly? NO The control line between IC707 and IC704 is defective. Or IC707 and IC704 are defective. YES Q702, L702, D703, and R704 are mounted improperly, or the parts are defective. NO FS701 is mounted improperly, or the fuse is blown. NO IC113 and peripheral parts are defective or mounted improp- erly. YES IC707 is defective. 2 - 63
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