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There are currently no product reviews.
 ;
Great quality copy, right what I was looking for, all I need to fix my radio.
Thanks
;
I BOUGHT A PAIR OF INFINITY VINTAGE SPEAKERS THAT REQUIRED TO BE REPAIRED AND THE ELECTRONIC TECHNICIAN ASKED ME FOR THE SERVICE MANUAL.
I TRIED TO GET IT AT THE MANUFACTURER'S SITE WITH NO SUCCESS, SO I STARTED TO LOOK FOR IT IN THE WEB FOR A LONG TIME, UNTIL I FOUND THE SERVICE MANUAL IN THIS EXCELLENT SITE "OWNER'S MANUAL.COM".
NOW I HAVE MY SPEAKERS WORKING AND ENJOYING THE MUSIC I LIKE.
THANKS TO "OWNER`S MANUAL.COM" I RECOMMEND THIS SITE TO EVERYONE.
;
Very quick response. Very good and accurate print quality of the scanned document.
 ;
The service manual was very usable and clear enough to see the individual values of all of the components (unlike some of the service manuals I have gotten in the past from web sites similar to this one). The price was right and the information was greatly appreciated. It helped me with an otherwise very difficult repair. It was much needed and appreciated. A faster turn around on my order would be nice, but I understand the constraints on your staff's time. Thank you for your service.
;
Excellent manual. Helped me out with disassembling and troubleshooting my projector.
2-5
2-5
START-UP PROCEDURE
POWER OFF (stand-by) Start-up procedure for ext.DC supply, no accu inserted, hold-switch in off pos., resume-mode off, CD-lid closed.
MAIN FAULT FINDING GUIDE
CHECK CD-DRIVE AND SERVO CIRCUITS
FAULT FINDING GUIDE FOCUS PATH
CHECK FOCUS PATH
PLAY pressed ?
N
enter service program �FOCUS TEST�
turntable and disc free ?
N
Y
Y
µP switches DC/DC converter on (POWER=L) µP sends power-on reset (PORES=L) µP sends parameter/settings to CD7 and NPC
focus found ?
N
mechanical obstruction ? check/repair FOCUS PATH
N
Y
Y remove obstruction replace CD-drive
µP sends command to CD7: �move slide inside�
enter service program �DISC MOT. TEST�
lens movement ?
N
Y CHECK LIGHTPATH check/repair TURNTABLE MOTOR PATH
disc speed
inner switch closed within 6sec ? N
N
triangle voltage on focus actuator OK ? Y
N
OK ?
Y
Y µP sends command to CD7: �move slide outside�
connections to/from CD-drive OK ? Y replace CD-drive
N
triangle voltage on pin 42 of 7950 ? Y repair connections check servo driver 7950
N
enter service program �RADIAL TEST�
inner switch open within 0.3sec ? Y µP sends commands to CD7: �switch laser on� �slide servo off� �focus servo on� N
check CD7 7830
radial tracking OK ?
N check/repair RADIAL TRACKING
Y
focus found within 3.2sec ?
N
enter service program �PLAYBACK TEST�
Y µP sends command to CD7: �disc motor to 75%� increment counter �focus not found�
errors during playback ?
Y
N
disc motor at 75% of nom.speed within 2sec ? N focus not found 2 times ? N
FUNCTIONAL TEST
Y µP sends command to CD7: �radial loop on�
Y
CD-DRIVE AND SERVO CIRCUITS OK
subcode found within 10sec ?
N
Y
release MUTE
PLAY-MODE
display shows �Error� start-up stopped
display shows �no disc� start-up stopped
CS 46 436
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