Applica RV500C : Technical information : Page 112

2.3.2.2.2 Mode 4 checks

These symptoms relate to operating the display in mode 4, when the line

scan frequency is increased from 31.47 kHz to 35.52 kHz.

Refer to "Adjustment Procedures" in topic 2.3.2.3 when adjustments are

required.

+------------------------------------------------------------------------+

¦ Symptom ¦ Action ¦

+-----------------------+------------------------------------------------¦

¦ Displayed image is ¦ Adjust RV502 until displayed image is central ¦

¦ wrapped around raster ¦ to background raster. If this is impossible, ¦

¦ horizontally. ¦ PLL mode 4 select is not working. Replace ¦

¦ ¦ card assembly. ¦

+-----------------------+------------------------------------------------¦

¦ Displayed image width ¦ Mode 4 selection circuit is not working. ¦

¦ varies excessively ¦ Replace card assembly. ¦

¦ between mode 4 and ¦ ¦

¦ other modes. ¦ ¦

+------------------------------------------------------------------------+

PS/2 Displays Maintenance Manual

Mode 4 checks

2.3.2.2.2 - 1