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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
E-F Balance (1 Track Jump) Check
oscilloscope (DC range) BD board
RF PLL Free-run Frequency Check Procedure : 1. Connect frequency counter to test point (PLCK) with lead wire.
frequency counter BD board
TP (TE) TP (VC)
+ �
TP (PLCK)
+ �
Procedure : 1. Connect oscilloscope to test point TP(TE) on BD board. 2. Turned Power switch on. 3. Put disc (YEDS-18) in to play the number five track. 4. Press the �P (Pause)� button. (Becomes the 1 track jump mode) 5. Check the level B of the oscilloscope�s waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than ±22%
1 track jump waveform Center of the waveform
2. Turned Power switch on. 3. Put disc (YEDS-18) in to play the number five track. Confirm that reading on frequency counter is 4.3218MHz. Adjustment Location :
[BD BOARD] (Side B)
10
5
1
B A (DC voltage) 0V
11 15 20
TE VC
level : 1.3 ±0.6 Vp-p symmetry
FE RF TEI
PLCK
14 10
5
1
15
20
25 28
� 10 �
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