Aiwa-AMHX100-md-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA MINIDISC PLAYER AM-HX100AHK S/M Code No. 09-018-446-0R2 REVISION BASIC MD MECHANISM: BZG-8 A This Service Manual is the “Revision Publishing” and replaces “Simple Manual” of AM-HX100 , (S/M Code No. 09-015-446-0T2). RadioFans.CN 收音机爱 好者资料库 ? ? ? ? ? ? ? ! ?#?$? ?#?$? ? ?!?%?$?, ?

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6、?4?& 26 MD TEST MODE Test Mode The operations are displayed by LCD of the remote controller. The keys of the main unit and remote controller can control shifts between operations. * TEST MODE will ignore any abnormalities during operation. Plug off the power supply once any abnormalities are detecte

7、d. * HOLD switch of the remote controller will function in TEST MODE. Test Mode 1.How to activate and cancel Test Mode (1) How to activate Turn ON the power supply (set batteries) while pressing “VOL ” keys of both the main unit and remote controller. Once Test Mode is activated, LCD will all light

8、up and EL backlight will be turned ON. Then it displays “Engineer MODE”. (2) How to cancel Turn off the power supply to cancel Test Mode. LCD Display when Test Mode is activated 2.TEST MODE operations There are 013 (000d) Test Modes, which are in the order of playback operations. These modes may be

9、selected using VOL+/ keys, while they can be started or stopped by pressing PLAY key. If a Test Mode is selected, a data will be displayed in “$XXXX”. * The values displayed in “$XXXX” are just IC internal data and their numerical values are of no significance (except for that of No. 0, 13). If any

10、abnormalities were detected during the operation, it displays “Failed”. Example of Mode Display No.LCD DisplayContents 000050c XeALL SV ON (EEPROM data) 101VC $XXXXVC offset 202ABCD $XXXXABCD input offset 303FE $XXXXFocus Error offset 404TE $XXXXTracking Error offset 505FOCUS CHKFocus search (Focus

11、servo OFF) Spindle Rough Servo 606FOCUS SRCHFocus search, Spindle rough servo FOCUS ON!Focus servo ON during DISC IN 707Laser $XXLaser power adjustment value 808ABCD G $XXABCD AGC 909EF $XXXXTraverse adjustment value 100AFG $XXXXFocus Gain adjustment value 110BTG $XXXXTracking Gain adjustment value

12、120CFB $XXXXFocus Bias adjustment value 130D050c XeALL SERVO ON (Operate all of 1-12) 27 (1) Checking Laser Power Laser Power can be checked in Mode No. 7. The display will repeat the string of OFFPIT Laser PowerGRV Laser PowerOFF every time DISP/SEARCH key of the remote controller is pressed. * Las

13、er will not be luminescent. LCD Display PIT Laser Power “LDPP $XX” GRV Laser Power “LDPG $XX” (2) Checking Sled Operation Sled operation can be checked between Mode No. 0,512. Press F-SKIP to shift the pick-up towards the external circumference. Press B-SKIP to shift the pick-up towards the internal

14、 circumference. (3) Checking Switch Operation OPEN/CLOSE SW and HOLD SW on a disc holder can be checked on LCD of the remote controller. Light up when the disc holder is closed. Alarm mark will light up when HOLD SW on the main unit is turned ON. It does not display HOLD SW of the remote controller.

15、 HOLD SW OPEN/CLOSE SW 28 ADJUSTMENT 1.Adjustment Mode Operations in Adjustment Mode can be checked on the LCD of the remote controller. GND TEST VDD ADJ RF VO VC MAIN circuit board Test Points (1) Preparation Disc to be used PIT disc (pre-mastered disc): TEST DISC (TGYS1 or TDYS-1) GRV disc (MO dis

16、c): SONY MDW-74 (fully recorded) Measuring device Digital Multimeter Direct current regulation power supply (REGULATED DC POWER SUPPLY) Oscilloscope (2) Note If a disc had any stains or scars on, the adjustment may not be completed. Always place the main unit with its cassette cover upward for adjus

17、tment. Do not make any manual adjustment. If the adjustment is incomplete, it displays “NO ADJ” during normal operation. (3) Prohibitions Do not press DSL key of the remote controller. If it was pressed, the mode will change to factory shipment mode. If any data is changed in this mode, the unit wil

18、l not be able to function normally. If accidentally change into this mode, initialize EEPROM and re-do all the adjustments. 29 2.Adjustment Procedure (1) How to activate adjustment mode Turn ON the power (set 1.30V batteries terminal) while shorting TEST of the main circuit board. Once adjustment mo

19、de is activated, LCD will all light up and EL backlight will be turned ON. Then it displays “Manufacture MODE”. (2) Using the multimeter, measure the DC voltage between VDD-GND of the test point. Check that the voltage between VDD-GND is more than 2.3V. If it has not reached 2.3V, short the VO ADJ.

20、of the test point with the solder. (3) EEPROM Initialization Press the “DISPLAY” key. “EP INT OK” appears on the display. Press “PLAY/STOP” key to display “IDLE”. (4) PIT disc (TEST DISC: TGYS1 or TDYS-1) Press “F-SKIP” and “B-SKIP” keys to shift the pick-up towards the centre. Insert the disc and p

21、ress “PLAY/STOP” key. (Make sure the top panel is upward) LCD of the remote controller will be displayed “AUTO ADJ H” first, then “COMPLETE”. Press “PLAY/STOP” key again to display “IDLE”. * If it displayed “Failed” during adjustment, it means that some abnormalities are detected and the operation i

22、s terminated. (5) GRV disc (SONY MDW-74) Insert the disc and press “PLAY” key. (Check the facing direction of the set) LCD of the remote controller will be displayed “AUTO ADJ L” first, then “COMPLETE”. Press “PLAY/STOP” key again to display “IDLE”. * If it displayed “Failed” during adjustment, it m

23、eans that some abnormalities are detected and the operation is terminated. (6) Checking RF Level and Error Rate TEST DISC: Insert TGYS1 or TDYS-1. Press “” key, display “032c 00e” and playback. Make sure if the error rate is below “50e”. Check the RF waveform (TP3) with an oscilloscope and it is wit

24、hin the 1.00.2V p-p. Press “PLAY/STOP” key to display “IDLE”. Press “+” key of the remote controller. Display “600c 00e” and playback. Make sure if the error rate is below “60e”. ? ? BZG-8A PWB JACK B D A F B B E E C D A A A 12 15 1 2 5 4 19 6 7 8 910 21 20 11 SH, PANEL BOT 13 14 16 17 b b a a 18 3

25、? ? ? ? ? ? ? ? ? ? ? ?!? ?! ? ? ? ? ? ?!? ? ? ? ?!?! ? ?#? ? ? ? ?#$? ?#$? ?#?%? ? ? ?$#? ?$? ?$? ? ? ?& ? ? ?$? ? ?$? ? ? ?%?$!? ?!%?! ?!? ? !?(?(? !? ? !?(?(? !? ? ? !?&?(?(? ?$? !?&?(?(? ! ? !?!?(?(? !? ?(?(?(? ? ? ? ? ? ? ? ?!?#$? #?#$?%?!%?%?! ?&?$? ?&? %&?%?!?&? ?(?$? ?&?$?&#? ? ? ? ? ? ? ? 4

26、 3 C D B 5 6 7 9 10 12 11 D 2 1 A 8 ? ? ? ? ? ? ? ? ? ? ? !?# ? ? ? ? ? ? ? ?$? ?%?&? ?%?&? ? ?%? ?%?&? 33 ACCESSORIES / PACKAGE LIST DESCRIPTIONREF. NO.KANRI NO. PART NO. 1 8B-HM4-902-110 IB,HK(ECH) 2 87-B30-507-010 BAT,MHB-901EX-SO 3 87-B30-221-010 CASE,BATTERY 4 87-B30-450-010 HEADPHONE,HP-M056A

27、(S) 5 8B-HM4-953-010 BOX,BAT ASSY BHM-4 5 8B-HM4-955-010 BOX,BAT ASSY BHM-4 L 6 8B-HM4-952-010 RC UNIT,RC-HX100 7 8A-HM6-954-110 CLIP,RC-CL33 8 8B-HM4-954-010 BAG,CARRING BHM-4 9 87-B30-144-010 AC ADAPTOR,AC-D401K NC 10 8B-HM4-957-010 CHARGER,RB-M05 HX100 EX! ! 211, IKENOHATA 1CHOME, TAITO-KU, TOKYO

28、 110, JAPAN TEL:03 (3827) 3111 Printed in Singapore2000068 921338 SERVICE MANUAL DATA AM-HX100AHK SIMPLE S/M Code No. 09-015-446-0T2 Replace this Service manual with “Revision Publishing” when it is issued. MINIDISC PLAYERBASIC MD MECHANISM : BZG-8 A ? ? ? ? ? ? ? ?!?!?#? ?$?%?!? ?&?%? ?!? ?($? ? $?)?*? ? ? ? ? ? ? ? ? ? ? ?!?!? ?!?!? ?!? ?!? ?!?#? ?!?#? ?!?$? ?!?$? ?!? ?!?#?#? ?!?#?#? ?!? ?%? ?%?