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ONKYO TXDS898
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of ONKYO TXDS898 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 3 (click to view)
TX-DS898
A
Idling current adjustment Before Idling adjustment, turn the trimming resistors R6040 to R6046 to counter clockwise. Connect the DC voltmeter to sockets P6080 to 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, R6045 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

B

C

D

ADJUSTMENT AND CONFIRMATION PROCEDURES

1

2

L ch.
DI-

R ch.
DI-

C ch.
DI-

3
P6083
+ID -ID

R6040

P6080

R6041

P6081

R6042

P6082

R6043

P6084
+ID -ID

R6044

P6085
+ID -ID

R6045

P6086
+ID -ID

R6046

SL ch.

SR ch.

SBL ch.

SBR ch. NAAF-7250

4
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..

5

DI+

DI+

DI+

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TXDS898 ONKYO
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Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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