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Very good quality original datasheet!I like this amazing website!!!!!!
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Excellent just what I needed to replace the electrolytic caps and make this old gem a beauty again. Was as scan of the original photocopied service manual.
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It was helpful to get schematic with waveforms in important points and lot of service information. Manual is good quality, fast delivered. Of course it is hardcopy of paper one with all its disadvantages.
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I want to give you a real heads-up for your desire to enable such people as I to acquire the information I need to maintain the older types of equipment such as this Akai HXA351W. You do a swell job with all the processes you have to perform so I can have a legible, thus usable
document which does not send me crazy trying to figure out the blurry text of a bad copy.
Very well done, Thomas.
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This manual is very well presented and after printing out looks about as close to an original as I think you can get. The quality is second to none.
The content of the manual is comprehensive and I think it would be well suited to an audio repair professional which I'm not but I did find it very informative and helpful.
The cost of the manual is more than covered by the money I'll save when I change the keep memory battery now I have the relavant info.
Very pleased with my purchase and can recommend it wholeheartedly as I can other manuals I've downloaded from this site.
Regards
Limey Alex
CD-4900M/DPF-J9030
CIRCUIT DESCRIPTION
2. Test mode
INPUT KEY Insert the AC plug to the wall outlet with pressing the SKIPDOWN key. Insert the AC plug to the wall outlet with pressing the REPEAT key PLAY/PAUSE STOP UP DOWN RANDOM PROCEDURE INITIAL CONDITION � Disc No.1 moves to the center. � Clear the memory of the SRAM. � Door opens. � Set the switch of TIMER ON PLAY to ON. CIRCUIT ADJUSTMENT � Open the door and load the disc to the Disc No.1. � Close the door. The unit changes to test mode05 after clamping the disc. Change the mode 05(tracking-on) and 03(tracking-off) alternately by the PLAY key. Stop the function. The pickup travels outwards. The pickup travels inwards. Shows the result of self-adjustment. 07 EF/FB à ñ ó ñ 08 TG/FG ñ ñ ó ñ 09 FE/RF ñ ñ ó ñ 10 TE/VC ì ñ REPEAT CONFIRM (TIMER PLAY SW) OPERATION A/B Insert the AC plug to the wall outlet with pressing the UP key. Insert the AC plug to the wall outlet with pressing the RANDOM key. PLAY/PAUSE STOP Mode changes alternately by the RANDOM key. Playback PGM signal of the Track No.7,13,23,30,34 and 41 in the order. And release the test mode. Release the test mode. Check the switch position. Change the mechanism A and B. CHECK THE MECHANISM JAMMING. Clamp the Disc No1,2,100,50,200 and 199 in the order. THE MECHANISM TEST MODE. Display shows Niagara until pressing any keys. DISPLAY MECHA. INITIAL INITIAL OK!! INITIAL NG TIMER NG TEST ON
05 XX:XX
03 XX:XX
00 MOTOR FORWARD MOTOR REVERSE 07 XXX:XXX 08 XXX:XXX 09 XXX:XXX 10 XXX:XXX NG: blinking
TIMER ON , TIMER OFF
Change the mode 05(tracking-on) and 03(tracking-off) alternately by the PLAY key. Stop the function. Shows the result of self-adjustment. 07 EF/FB à ñ ó ñ 08 TG/FG ñ ñ ó ñ 09 FE/RF ñ ñ ó ñ 10 TE/VC ì ñ Mode changes alternately by the STOP key. Arm Motor Load operation. Arm Motor Unload operation. Rotary Motor Clockwise turning. Rotary Motor Counterclockwise turning. Playback PGM signal of the Track No.7,13,23,30,34 and 41 in the order.And release the test mode. Release the test mode. Change the mechanism A and B.
05 XX:XX
03X:XX
07 XXX:XXX 08 XXX:XXX 09 XXX:XXX 10 XXX:XXX NG: blinking MOTOR LOAD MOTOR UNLOAD MOTOR CW MOTOR CCW
UP DOWN RANDOM DISPLAY REPEAT CONFIRM OPERATION A/B
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