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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
NOTES In many cases, color misconvergence may be corrected by returning HIT and WID data in main deflection side to initial adjusting values. Following cases will surely require readjustment of convergence. CRT REPLACEMENT When CRT is replaced, main deflection readjustment and color matching are required. Perform following procedures. 1. Replace two CRT�s of blue and red. 2. Perform horizontal adjustment for blue and red yokes on base of green CRT data. Mount yoke and velocity mod. coil alignment, pushing towards CRT without gap. 3. Adjust alignment of blue and red. (Refer Alignment adjustment for details.) 4. Rotating centering magnet, adjust CRT centers of red and blue to CRT center of green. (Picture position adjustment) 5. Adjust HIT and WID data of main deflection, and decide data at the most precise screen comparing to green data. 6. Adjust convergence of each screen picture for color matching. Do not move green one at this time. 7. After convergence adjustment of each screen picture finishes, replace green CRT. For green CRT as well, repeat steps 2 to 5 above on bases of red and blue color matching to adjust convergence. REPLACING CONVERGENCE UNIT When replacing convergence unit, all picture screens require readjustment basically, but the following method allows process be reduced considerably. 1. Replace the memory (Q713) on defective unit with memory on new unit. Mounting the unit on the SET after the above working realizes picture screen before replacement immediately. 2. Mount unit which has combination of old and new memories, on SET and turn it on. Screen shows whole picture looks like straightly shifted towards vertical or horizontal direction. 3. Adjust again centers of green, red and blue with centering magnets. 4. Check each picture screen for slight disparity of color and picture size. If necessary, add some adjustments of main deflection and color matching of convergence.
SPECIFIC INFORMATIONS GENERAL ADJUSTMENTS
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