Amc-CDM7-cd-adj维修电路原理图.pdf

《Amc-CDM7-cd-adj维修电路原理图.pdf》由会员分享，可在线阅读，更多相关《Amc-CDM7-cd-adj维修电路原理图.pdf（1页珍藏版）》请在收音机爱好者资料库上搜索。

1、AMC CDM7LASER ADJUSTMENT PROCEDUREADJUSTMENT POINTS DIAGRAM:LASER CURRENT ADJUSTMENT:The integrated circuitry used in the CD PCB eliminate the need for most adjustments by incorporatingself adjusting circuitry.However, when parts in the servo circuitry or CD mechanism are replaced, alaser current ad

2、justment should be performed. Please follow the steps below:1. Insert the test disc (Sony Type 4, YEDS 18).2. Make sure the power is turned OFF.3. Connect a high impedance voltmeter across the test points labelled LASER ADJ.4. Turn the power ON and press the Play button.5. When track 1 starts playing, adjust R127 to 50mv +/-2mV specification.RadioFans.CN 收音机爱 好者资料库