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There are currently no product reviews.
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I was having a hard time finding the problem with this Mackie 1604 unit. I didn't have a schematic. Went looking on the web and found your site and the price was more then reasonable. Ordered it and within the hour had the manual and within 15 minutes had the unit fixed. Best $4.99 I ever spent. Thank you.
Doug
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This is a service manual in every sense of the word ( French and German versions of the text are included, as well as English..)
There are explanations of the mechanical and electrical functions, plenty of mechanical drawings, and the needed schematics. The quality of the scanning is excellent - all the component values are clearly legible - and very usefully there are pcb component layouts, so you can find a component on the schematic, and then very quicky pinpoint its physical location on the relevant pcb.
I cannot see how I can give this manual any less than the maximum 5 stars! Great value for money, which will pay for itself immediately. Excellent all round!
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the manual is great and especially hard to find... thanks for the great service and having a hard to find manuel_
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Please tell us what you think and share your opinions with others. Be sure to focus your comments on the product. You will receive $2.50 of store credit for Your review.
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hat alles sehr gut geklappt. Das Servicemaual ist gut zu verwenden. Die Pläne und Schrift
ist klar und leserlich. Außerdem preiswert. Grüße an alle Hifi-Bastler
7
Does pulse of L = 1.65V and H = 3.3V develop at pin 131 and L = 0V and H = 1.65V develop at pin 132 of IC401? Y Y Check signal process system following to IC402. Does RF output higher than 1 V(p-p) develop at pin 30 (TP502) of IC502? Y N
Disc playback is NG (DVD).
N
Is PLL locked? (Refer to waveforms.)
N
Check peripheral circuits of IC401 and IC306.
Check IC502. Lens cleaning.
N
Pin 43 of IC502 = 2.4V Pin 44 of IC502 = 3.0V
Pickup mechanism replacement
Y Check peripheral circuits of IC401 and IC306. Check peripheral circuits of IC502 and IC401.
Fig. 1-3-16
PLL works as a servo loop to generate a clock signal for reading RF signal binary data. With the PLL locked, the eye pattern is identified clearly when triggered with the read clock PLCK.
DVD RF signal
DVD playback waveform
DVD RF signal Pin 30 (TP502) of IC502
DVD RF signal Pin 30 (TP502) of IC502
V : 500 mV/div H : 50 ns/div
DVD PLCK Pin 117 (TP409) of IC401
Fig. 1-3-17
CH1 : TP502 DVDRF 500 mV/div CH2 : TP409 DVDPLCK 5 V/div 50 ns/div
Fig. 1-3-19
CD RF signal
CD playback waveform
CD RF signal Pin 30 (TP502) of IC502
CD RF signal Pin 30 (TP502) of IC502
V : 500 mV/div H : 100 ns/div
CD PLCK Pin 117 (TP409) of IC401 CH1 : TP502 CDRF 500 mV/div CH2 : TP409 CDPLCK 5 V/div 100 ns/div
Fig. 1-3-18
Fig. 1-3-20
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