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This is exactly the thing you need to service this box. The manual is complete and the quality of the scan is good. I recommend this!
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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.
SECTION 5 ADJUSTMENTS
CD SECTION
Precautions for Adjustment 1. Before beginning adjustment, set the equipment to service mode. After the completion of adjustment, be sure to reset the service mode. For more information, see �Service Mode (service program)� on page 8. 2. Perform adjustments in the order given. 3. Use the disc (YEDS-18. Part No. 3-702-101-01) unless otherwise indicated. 4. Power supply voltage requirement : DC 4.5 V HOLD switch : OFF VOLUME : Minimum BASS BOOST switch : NORM AVLS switch : OFF Before Beginning Adjustment Set the equipment to service mode (See page 8) and check the following. If there in an error, repair the equipment. � Checking of the sled motor 1. Open the upper panel. 2. Press the + and = keys and check that the optical pick-up can move smoothly without sluggishness or abnormal noise from innermost periphery to outermost periphery then to innermost periphery. + : The optical pick-up moves outwardly = : The optical pick-up moves inwardly � Checking of focus searching 1. Open the upper panel. 2. Press the ^ key. (Focus searching operation is activated continuously). 3. Check the object lens of the optical pick-up for smooth up/down motion without sluggishness or abnormal noise. 4. Press the p key. Check that focus searching operation is deactivated. If not, again press the p key slightly longer.
+ �
Focus Bias Check Condition : � Hold the set in horizontal state. Procedure : [MAIN BOARD] (Side B)
oscilloscope (AC range) 2k � IC501 @£ pin (RFO)
IC501 #º pin (VC)
23 30
IC501
1. Set the equipment to service mode stop state (See page 8). 2. Connect the oscilloscope between IC501 @£ pin (RF0) and #º pin (VC) on the MAIN board. 3. Move the optical pick-up by Pressing the + and = keys. 4. Put the disc (YEDS-18). 5. Press the ^ key. From focus searching, focus is turned ON while entering CLV drawing-in mode. Tracking and sled are turned OFF.
(
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6. Press the PLAY MODE key. (Both tracking and sled are turned ON). 7. Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape (�) in the center of the waveform can be clearly distinguished.
RF level 0.85 � 1.15V
� RF Signal Reference Waveform (eye pattern) To watch the eye pattern, set the oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watching. 8. Stop removing of the motor by pressing the p key. 9. After the completion of adjustment, reset service mode. (See page 8 )
�9�
 $4.99 D-F411 SONY
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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