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All ok. I pay 5 $ and now i have 92 pages of good scaned service manual for my oooooold akai. Now i will try to repair it.
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good and ok, very nice , good and ok, very nice, good and ok, very nice
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Super manual it contains all the things you need to service your Marantz 2100.
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A very easy to understand and use manual. Well worth the money.
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Very good information with clear drawings. Thanks!
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Trouble shooting chart
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Check whether all the voltages from the power board to the decoder board are normal.
No Check the loaded circuit
CVBS(R1 point) waveform
Yes
Check if the reset circuit consisting of CE3, D6 and R21 is normal (at a high level for tens of milliseconds, then constantly at 3.3V).
No Change CE3, D6 and R21.
27Mhz waveform
Yes Crystal oscillator Y2 and
Check whether there is 27MHz signal output.
No
peripheral components are defected or eroded.
Yes
Check if there is 135MHz signal output on R31.
No
Check whether short-circuit or bad solder on U1,U3
SDRAM(R31 PCLK) waveform
No
Yes
Check if short-circuit and bad solder exist on Pin 60
Check U2. No
Yes Yes Reconnect the component in
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