Sharp VL-C780S Serviceanleitung Seite 194

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ML-C780S/H/X
VL-C7400E
ViL-C690S/H/X
VL-C6A00E
5-7. Camera signal adjustment ei
The camera microcomputer sends the data written in the E2PROM (1C653) to the two D/A converters (1C651,
1C652) and holds the 12 items of waveform adjustment sate in the signal processing process by means of the
D/A converter output voltage.
Adjustment mode
The camera microcomputer is switched to the adjustment mode by means of the serial transfer data from the
VCR microcomputer. In the adjustment mode, the key scan is stopped, accepting no camera operation keys.
Adjustment is made with the VCR operation keys. Ps
Note: For more datails, see the Service Manual "ADJUSTING METHOD OF CAMERA SECTION".
5-8. Serial transfer with VCR microcomputer
The camera. microcomputer performs sending/receiving of the serial data with the VCR microcomputer for
discrimination of action mode, viewfinder display of operation state, camera function backup, etc.
Action of VCR microcomputer.
inp aronocksnicing | —> Wiewinderdipay
GS _____winmwecanpnonmar [——> [ewfinderdipiay
AF inpaavTonmanuat | —=—> iewinder dpay Backup
TENGE [Winput tSTIMessraNDARD [—<—> [pec
ecw BSE Tanger
Sairviven _winpst «| > imernectand@®
Camera function acceptance is
allowable.
<-—-—
|Camera mode
| |
|
| |
TALLY LED lighting | <—— | REC RUN mode
PROGRAM Shifting to adjustment mode Camera adjustment mode
Alteration of address data and :
DA OUT adjustment data | <—— [Adjustment key input
WRITE Writing adjustment data in ROM Adjustment key input
Table 5-8. Main Transmission Contents
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33