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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
1-10. Switch Settings on Boards and LEDs Description (CPU-251/229 Boards)
1. CPU-251 board
CN5 (G3) : Backup battery connector
ON
D6 (G2) : S-BUS Rx lamp This lamp lights for about 0.3 seconds when the data for a local station is received from the S-bus data link via a REMOTE1 connector. D7 (G2) : S-BUS Tx lamp This lamp lights for about 0.3 seconds when data is output to the S-bus line by a REMOTE1 connector. The lamp continuously lights when this unit is set to the primary station. When this unit is set to the secondary station, the lamp lights only during internal operation. D8 (G2) : 422 Tx lamp This lamp lights for about 0.3 seconds when data is output from the REMOTE2 connector to the RS-422 line. D9 (G2) : 422 Rx lamp This lamp lights for about 0.3 seconds when a command is received from the RS-422 line via a REMOTE2 connector. D10 (G2) : Not used. D11 (G2) : ACT lamp This lamp lights when the bus can communicate with the outside. The lamp of the board in operation lights when the CPU-251 board for backup is mounted. D12 (G2) : PRI lamp This lamp lights when the CPU-251 board is set to the primary station. D13 (G2) : RUN lamp This lamp lights when the CPU is running normally. D31 (A8) : This lamp lights when a REF signal is input. D32 (A8) : This lamp lights when a REF signal is synchronized.
Factory-shipped setting
CN6 (J8) : This connector is used for adjustment in the factory. CN7 (J8) : This connector is used for adjustment in the factory. CN8 (F7) : REMOTE2 TERMINATOR switch This is the terminator switch of a 9-pin REMOTE2 connector. Usually, set this switch to ON during use. Set it to OFF only during special use (e.g., bridge connection).
OFF
ON
Factory-shipped setting
CN9 (F7) : REMOTE2 TERMINATOR switch This is the terminator switch of a 9-pin REMOTE2 connector. Usually, set this switch to ON during use. Set it to OFF only during special use (e.g., bridge connection).
OFF
ON
Factory-shipped setting
CN12 (C9) : This connector is used for adjustment in the factory
HDS-V3232 MM
1-23 (E)
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