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have download a number of manuals todate , most are excellant, one or two sometimes a little difficult to read but a least avaialable, great site .
Brad.
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Excellent had everything I wanted, very happy with purchase
 ;
This service is relatively cheap, document is fast available, schematic is readable.
Thanks.
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So far I´m a satisfied customer. I have only downloaded "TECHNICS SX-KN470 Service Manual" maybe I will use it later.
Best regards
Peter
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Good manual. It is complete and of high quality, both text and graphics. The schematics are with the original big size, so it can be viewed or printed without any loss of resulution and sharpness.
TX-DS797 ADJUSTMENT AND CONFIRMATION PROCEDURES 1
Idling current adjustment Before Idling adjustment, turn the trimming resistors R6040,R6041,R6042,R6043,R6044 and R9046 to counter clockwise. Connect the DC voltmeter to sockets P6080,P6081,P6082,P6083,P6084 and P6086. After turn POWER to ON, adjust the trimming resistors R6040, R6041 and R6042 so that the reading of voltmeter becomes 7.0 mV. (Front and center channels) Adjust the trimming resistors R6043, R6044 and R6046 so that the reading of voltmeter becomes 5.0 mV. (Surround and surround back channels) After adjustment, attach the top cover. Confirm the voltage of points above after about five minutes. Front and center channels When less than 9.0 mV, readjust the resistors above so that the voltage becomes 9.0 mV. When 9.0 mV to 11.0 mV, you are not necessary to adjust. When more than 11.0 mV, readjust the resistors above so that the voltage becomes 11.0 mV. Surround and surround back channels When less than 6.0 mV, readjust the resistors above so that the voltage becomes 6.0 mV. When 6.0 mV to 8.0 mV, you are not necessary to adjust. When more than 8.0 mV, readjust the resistors above so that the voltage becomes 8.0 mV. Note: No load and No signal
L ch.
DI-
R ch.
DI-
C ch.
DI-
R6040
P6080
R6041
P6081
R6042
P6082
P6083
+ID -ID
R6043
P6084
+ID -ID
R6044
P6086
+ID -ID
R6046
SL ch.
SR ch.
SB ch. NAAF-7250
Confirmation of protection circuit 1. Confirmation of operation of speaker relay Confirm that the speaker relays turn ON approximate. 5 seconds after the power switch is turned ON. Confirm that the speaker relays turn OFF immediately after the power switch is turned OFF. 2. Confirmation of DC detection circuit Press and hold down CD button, then press STANDBY/ON and DISPLAY buttons to set the unit to "TEST-1" mode. After "TEST-1" on the FL tube light on, press VIDEO 1 button to set the unit to "TEST-1-00". Apply DC 1.5 to 3V to MULTI CHANNEL INPUT terminal with no load. Confirm that the speaker relay turns OFF. Apply DC -1.5 to -3V to MULTI CHANNEL INPUT terminal with no load. Confirm that the speaker relay turns OFF. Caution: Don't apply DC voltage more than 1 sec..
DI+
DI+
DI+
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