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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
Block Diagrams
9. Block Diagrams
9-1 C15A Video Block Diagram
9-1-1 Notes
The TV�s 1st and 2nd tuners (and VCR module) are �multi-system.� compatible: IC201 (TDA8842/8841) is the video, chroma, and deflection (VCD) IC .
9-1-1(A) TAPE PLAYBACK (REGARDLESS OF ORIGINAL RECORDING SYSTEM)
If the output PB signal of micom pin 6 is high, the PB signal outputs from module deck 2, passes through IC 702 pins 2 and 3 and out to another VCR . The output signal of IC701 pin 1 (pin 15) outputs from IC201 pin 17 .
9-1-1(B) VIEWING NORMAL CHANNEL WHILE RECORDING A SCRAMBLED CHANNEL:
The output CVBS (Composite Video Signal) of the 2nd IF outputs to IC702pin 3 when the micom�s pin 7 V/T/H (VCR tuner high) is high . The decoded signal goes to IC701 pin 2, where it is fed to IC 701 pin 4 (high output of micom�s� pin 8� AV/Tuner), and out to VCR pin 4 (module deck) for recording.
9-1-1(C) VIEWING A SCRAMBLED CHANNEL WHILE RECORDING AN UNSCRAMBLED CHANNEL.
The output CVBS of the 2nd IF is fed from IC701 pin 5 to IC701 pin 4 (low output of micom pin 8�AV/tuner). Then it goes to the module deck pin 4 for recording. The scrambled signal (CVBS) is fed to IC702 pin 1 through the 1st IF, and then to IC702 pin 3 (micom�s pin 7, V/T/H registers low). Then it goes to the decoder input. The descrambled signal goes to IC701 pins 2 and 15 (PH high output of micom�s pin 6), and then to IC201 pin 17, where it outputs as RGB.
9-1-1(D) SYNCHRONOUS RECORDING:
The viewer sees the signal from the 1st tuner , while the signal from the second tuner is recorded. Audio processing for the French system type is shown in the table.
Samsung Electronics
9-1
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