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Manual acquired with good resolution, complete in all its pages, very good policy of the folder where are saved all products purchased.
Service manual very complete and clear. It was very helpfull for my work.
This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
Good price for the manual and easy to locate on the site and download. Plus, just like the original. Thanks a lot.
2-1-6. Adjusting Sequence Make the electrical adjustment in the following sequence.
Checking power supply
SERVO SYSTEM ADJUSTMENT
RF Switching Position Adjustment (MA-323 Board)
Servo system adjustment
Purpose: Adjust the interval between A ch and B ch of tape playback output. Improve the interchangeability with other tapes and sets. When it is out of order, the interval appears on the screen, the screen is disturbed. Mode Signal PB Alignment tape SP mode color bar CH1: VIDEO LINE OUT CH2: Pin 2 of CN501 (RF SWP) Oscilloscope 6.5 Â± 0.5 H (416 Â± 32 Âµsec) PAL 6.5 Â± 0.5 H (410 Â± 32 Âµsec) NTSC
Audio system adjustment
POWER SUPPLY ADJUSTMENT
Measurement Point Power Supply Check HS-921SF1 BOARD, ï£¶ SR-708 BOARD ï£¸ E-E Digital voltmeter Pin 9 of CN600 â10.3 Â±0.8 V ï£¶ ï£¸
Mode Measuring Instrument â10 V check Measurement Point Specified Value +6 V check Measurement Point Specified Value +13 V check Measurement Point Specified Value +35 V check Measurement Point Specified Value
Measuring Instrument Specified Value
Adjusting Method: 1) Connect MA-323 board JS140 to the GND for about 1 secont to activate the RF switching position adjustment mode. 2) Check appear âA Pâ on FL display. 3) Using the channel + and â buttons, adjust to 6.5 Â± 0.5 H. 4) Press the pause button.
Pin 7, 8 of CN600 5.9 Â± 0.2 V
Pin 2, 3 of CN600 13.3 Â± 0.5 V Pin 1 of CN600 38.0 Â± 3.0 V
V enargement Vertical sync. signal CH1 CH1 Approx. 1 Vp-p
Approx. 5 Vp-p
Checking Method: 1) Confirm that each voltage meets its specified value. 2-2-2. +6 V Adjustment HS-921SF1 BOARD, ï£¶ SR-708 BOARD ï£¸ ï£¶ ï£¸ REC or PB Digital voltmeter Pin 7, 8 of CN201 RV201 (HS-921SF1 BOARD) VR201 (SR-708 BOARD) 5.9 Â± 0.2 V
Mode Measuring Instrument Measurement Point Adjusting Element Specified Value
6.5 Â± 0.5 H (416 Â± 32 Âµsec) PAL (410 Â± 32 Âµsec) NTSC