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The delivery of this manual was very fast, less than 8 hours. The manual is very clear and concise, and helped a great deal in the repair and final setup of the Hitachi HMA-G2 Amplifier.
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Great service. The manual was exactly what I was looking for: schematic + layout. I managed to fix the player. Highly recommended!
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At $5,00 certainly good bang for your buck. Includes electric schematics as well as exploded parts view + parts list for reordering. Unfortunately no details on the PCB contents or working, but then again, this is not overly complex. Best bonus: this manual does contain the heavily searched for LED error codes as well as descriptions for test operation. Haven't gotten around to fixing the machine yet, one thing the manual won't do for you is getting it out of the kitchen assembly :-(
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It`s not your fault tear down is rather incomplete. It doesn`t have complete instructions as to deconstruction for repair.
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THANK YOU FOR A GOOD TRANSACTION, NICE COPY, CLEAR
RM-AV2100
4-3. SCHEMATIC DIAGRAM � MAIN SECTION �
(BUZZER)
Note: � All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. � All resistors are in � and 1/4 W or less unless otherwise specified. � C : panel designation. � U : B+ Line.
� Waveform
1 IC1 qa XT2
4.6Vp-p
2 IC1 7 X2
4.6Vp-p
� Power voltage is dc 6V and fed with regulated dc power supply from battery terminal. � Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. � Voltages and waveforms are dc with respect to ground in playback mode. � Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. � Waveforms are taken with a oscilloscope.
31µs 32kHz
2V/div 20µsec/div
0.5sec 5MHz
2V/div 0.1sec/div
� 23 �
� 24 �
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