Jvc-UXA-70-MD-Service-Manual-2电路原理图.pdf
《Jvc-UXA-70-MD-Service-Manual-2电路原理图.pdf》由会员分享,可在线阅读,更多相关《Jvc-UXA-70-MD-Service-Manual-2电路原理图.pdf(6页珍藏版)》请在收音机爱好者资料库上搜索。
1、SERVICE MANUALMICR COMPONENT MD SYSTEMNo.20901BMar. 2001COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.UX-A70MDUX-A70MDArea Suffix UBUFUSHong KongSupplementChinaSingaporeIt will guide to be change in the following in service manual UX-A70MDNo.20901 issued before. The mistake is partially found in MD an
2、d the CD adjustment, and allsentences are replaced. (Refer to page 1-28 1-31 of service manual UX-A70MD No.20901)1.2. Guide of extension cable for repair.Parts No.UsageQUQ110-2130BM Extension for MD unitEXTUXA70MD-14P Extension for CD unit (2 piece use)ContentsAdjustment method (CD/MD section)-1-21)
3、CD section -1-22)MD section-1-3UTTaiwanUJ US militaryUPCoreaUX-A70MD1-2Adjustment Method (CD/MD section)1. Jigs and test instrumentsLaser power meterLaser power meter sensor (or disk sensor)Premastered disk (MRG-1018)Recordable disk2. Adjustment and check items1) Indications in the modes that all LC
4、Ds are on2) CD section(1) Indication of the C1 error(2) Cancel of the C1 error indication3) MD section(1) Setup of the TEST MODE 1(2) Initialization of the EEPROM(3) Adjustment of the laser power(4) Adjustment of the disk(5) Setup of the TEST MODE 2(6) Indication of variation in the pickup adjustmen
5、t value(7) Indication of the C1 error(8) Cancel of the TEST MODE3. Adjustment and check method1) CD section(1) Indication of the C1 error(2) Cancel of the C1 error indicationTo cancel the C1 error indication, cut off the power supply.While pressing both the POWER key and BACK SKIP key on the main un
6、it, turn on the primary power supply.FL indicationCRC = 0Press the CD OPEN/CLOSE key and insert the test disk.Press the CD PLAY key. The set starts counting and the number of error correction times is indicated every 10 seconds.200 Hz or lessFL indicationCRC = *UX-A70MD1-32) MD section(1) Setup of t
7、he TEST MODE 1While pressing both the POWER key and FORWARD SKIP key, turn on the primary power supply.FL indicationTEST MODE 1Setup is complete.(2) Initialization of the EEPROM(The EEPROM can be initialized on the precondition that the setup of the TEST MODE 1 is complete. After setup of the TEST M
8、ODE 1, proceed to the following operations with the remote controller*.)* For EJECT operation, use the EJECT key on the main unit.Initialization of the EEPROMPress the OPEN/CLOSEkey on the main unit(3) Adjustment of the playback laser power (4) Adjustment of the recording laser powerSet up the TEST
9、MODE 1.Insert the laser power meter sensor.Press the “2“ key on the remote controller.Set up the playback laser power.Increase the laser power with the F. SKIP key on the remote controller.Decrease the laser power with the B. SKIP key on the remote controller.Adjust the power to be 0.68 mW or more.
10、If the value exceeds 0.68 mW, approximate it to 0.68 mW as accurately as possible.Press the MD EJECT key on the main unit.Setup of the MD laser power is complete.Set up the TEST MODE 1.Insert the laser power meter sensor.Press the “4“ key on the remote controller.Set up the recording laser power.Inc
11、rease the laser power with the F. SKIP key on the remote controller.Decrease the laser power with the B. SKIP key on the remote controller.Adjust the power to be 6.23 mW or more. If the value exceeds 6.23 mW, approximate it to 0.68 mW as accurately as possible.Press the MD EJECT key on the main unit
12、.Setup of the MD laser power is complete.Press the PLAY MODE keyon the remote controller.FL indicationTEST MODE 1Setup is complete.Press the STOP key on the remote controller.Press the STOP key on the remote controller.Press the STOP key on the remote controller.Press the STOP key on the remote cont
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- JvcUXA70MDServiceManual2 电路 原理图