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Philips CDM4

DAC 1541

CDM4 310主板

2011-08-10 02:47:18| 分类：默认分类 | 标签： |字号大中小订阅

LJCNN的

输出：BALANCED平衡输出
COXA同轴输出
TX178光纤输出
I2S接口
支持：进出仓/顶开
CDM4/CDM9光头
ZC99696/ZC99685

Philips CDM4 CD转盘 - xing-v - 猪的博客

接口：CON1接M4/M9光头排线
CON2，CON101通过20PIN软排连接显示板
CON3预留I2S接口
顶开：KBSC4,KBSC5接开关
SW +5V-D短接
变压器：单15V和双12V 电流选1A，约40w
光头调整：22K可调电阻调聚焦
5K可调电阻调激光电流

首先把激光功率调到一个较低的位置，激光功率由低向高调节可以避免发射功率过高烧毁激光管。激光功率电位器要先逆时针旋到头，再顺时针旋转整个调节行程的三分之一处，把此处作为激光功率调节的起点。
然后把聚焦伺服电位器顺时针旋到底。一点一点慢慢逆时针向回调。每一步可按照电位器可调全行程，每调一步试一下读碟效果。如果调到头仍旧不能读碟，则顺时针调一下激光功率电位器

光头电流：在播放状态时测量12Ω电阻，测量它的两端电压V/12=光流

无刷马达接口：VC为控制脚
CS8404和PCF2705二选一,不能同时安装
S1/S2跳线：CDM4：S1=12，45，S2=23，56
CDM9：S2=12，45，S1=23，56(将TDA8808第18脚100欧姆电阻挑起)

换用ZC99685P设置

先按表跳线 ZC99696 ZC99685 ON 连接 OFF 断开

JP1 ON OFF

JP2 OFF ON

JP3 OFF ON

JP4 ON OFF

JP5 OFF ON

JP6 ON OFF

JP7 OFF ON

JP8 ON OFF

JP9 OFF ON

JP10 ON OFF

JP11 ON OFF

JP12 ON ON

JP13 OFF ON

JP14 ON OFF

ZC99685P插座中的74HCT00要焊上，用ZC99696时可以不拆下

ZC99685P MCU 17脚接10K电阻上拉+5V (4,5脚电阻挑起，不挑起也不影响)

30脚接5V打开六位显示

33脚上拉5V后仓门开关为接地有效（原板ZC99696下拉到地后仓门开关为接5V有效）

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Philips CDM4

DAC 1541

历史上的今天

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