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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
PC-UM10M
2
Check the power unit, the power cable, their connection, the DC+12V power line, and IP1.
Is FB23 at DC+12V ? (Yes) Is CN10-5P at H level (DC+3.3V) ? (Yes) Is CN10-6P at DC+1.0V or below when the brightness is maximum ? (Yes) Is the inverter PWB normal ? (Yes) Check the lamp in the LCD module.
(No)
(No)
Check BLON signal and CN10 peripheral circuits.
(No)
Check IC16 peripheral circuits.
(No)
Replace the inverter PWB unit.
3
Are signals at IC13-17, 24, 40P normal ? (Yes) Are signals at R19 and R71 normal ? (Yes) Is CN12-1P at DC+12V ? (LL-T1620H/B only) (Yes) Is CN9-39P at DC+5V ? (LL-T1520H/B only) (Yes)
Is the signal between IC13 and IC27 normal ? (LL-T1620H/B only)
(No)
Check CN2, IC5, and IC13 peripheral circuits.
(No)
Check the analog signal cable, CN2 peripheral, and IC peripheral circuits.
(No)
Check IP4 and IC25 peripheral circuits.
(No)
Check IP2 and IC25 peripheral circuits.
(No)
Check IC13 and IC27 peripheral circuits.
(Yes)
Is the signal between IC27 and CN12 normal ? (LL-T1620H/B only)
(No)
Check IC27 and CN12K peripheral circuits.
(Yes)
Is the signal between IC13 and CN9,C11 normal ? (LL-T1520H/B only)
(No)
Check IC13, CN9, and 11 peripheral circuits.
(Yes) Are the cables of the LCD unit normal ? (Yes) Replace the LCD unit. (No) Check the cables and related parts.
LL-T1520-H/B LL-T1620-H/B TROUBLE SHOOTING
4�2
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