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I was very skeptical of this website, I have never downloaded manuals before. I put it on the AMEX and payed through Paypal to ensure protection. I got the manual exactly as described and now I can replace the filter capacitor for this amp. Great Price, others selling for 12.99 or more and this is the same manual. I will search out this website for other manuals. Thank you
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Manual was reasonably easy to follow. I am not an engineer or know much about electronics but with the manuals help I was able to figure out the problem, identify the part required for the repair. Replacement part cost around $30. Whilst replacing the part I was telling myself, "this aint gonna work cos it seems far too easy". Took about 15 minutes to do and my plasma TV works a treat. Would never have been able to do this without the service manual.
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It is OK, this manual help me to repair my dynacord
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Good manual. Even it is an old printed manual, it is well scanned and complete, with all drawings, schematics and parts list. Very good return for the cost.
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I'm very satisfied with my purchase. It resolved my problem. Owner-manuals.com is a very very good place.
Thank you!
Powered Subwoofer
BASS2/BASSWAVE
Additional Service Notes/Revisions
Customers who complain of a low level distortion heard only during very quiet musical passages, or experience erratic/inconsistent turn-on performance may need to have their units modified as follows: 1. Remove jumper wire JW12. 2. Change resistor R24 to a 22k ohm, 5%, 1/8W. (JBL part# HM185-02202-00). 3. Change capacitor C19 to a .0047 uf cap. (JBL part# 3679472120). 4. Cut trace at SW1 (middle pin which runs to JW12). 5. Add 2" insulated jumper wire from SW1 (middle pin) to right-hand side of JW12. Route this jumper away from the four large diodes. 6. Add an uninsulated jumper from the left-hand side of JW12 to the ground trace which runs just to the right of it. Serial numbers below should already be modified.
100v 120v 230v
NOTE: If a customer (of a later revision) is insistent that the auto-mute feature work on his subwoofer, an easy way to accomplish this is to use the speaker level (high level) inputs on the unit in lieu of the RCA jacks.
WIRING DIAGRAM
JSEKE10988 and above
JSEKD13486 and above JSELD027239 and above
JSEKF20034 and above JSELF020498 and above
Early versions of the units ending with serial #JSELD 024124 had a 18VDC output jack; later versions are missing this. It's presence or absence does not affect subwoofer operation in any way.
Early versions of the units below serial # JSELD 024125 will cycle into a standby mode when the signal source is absent after a predetermined time; the green LED turns OFF when this happens on the 120 volt version, the LED cycles to RED on the 230 volt versions. The unit's sensitivity to input signals was increased on serial # JSELD 024125 and above; these units may stay ON, even when the input signal is absent. This is a normal condition, and does not compromise the safety, integrity, or dependability of the product in any way. The standby condition that took place on earlier versions was an electronic muting, and both versions draw the same amount of power at all times, whether muted or ON.
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