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The Service Manual was just as expected, complete with schematics and I was able to download it in less than an hour after I ordered it. The only problem with these is that the schematics are hard to read due to the small font. I could remedy this by printing them on a larger printer.
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The Technics manual was very clear and I was able to solve my technical problems.
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I would recommend Owner Manuals as a first source of technical products for ‘dated’ equipment manuals.
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DP-IF8000 SECTION 4 TEST MODE
1. OVERVIEW
The internal microprocessor in this device has a test mode that can perform all checks. Items that must be checked during repairs are stored in this microprocessor.
5. TEST TONE OUTPUT
DIGITAL1 L, R, HL, HR LED lights up INPUT key 1kHz, 0dBv L&R ch *6)
2. SETTING THE TEST MODE
To call up test mode, turn on the power while holding down the POWER and INPUT keys. (Connect the AC adapter.)
3. CANCEL THE TEST MODE
Remove the AC adapter.
4. TEST MODE
4-1. LED check
LEDs light up in sequence *1) EFFECT key All LEDs light up *2) EFFECT key All LEDs turn off *3) Power key To Key check
DIGITAL2 L, R, HL, HR LED lights up INPUT key ANALOG L, R, HL, HR C LED lights up EFFECT key
1kHz, �10dBv L&R ch *6)
100Hz, �10dBv L&R ch *6)
CINEMA1 L, R, HL, HR R LED lights up POWER key INPUT key
10kHz, �10dBv L&R ch *6)
*1) Test mode setup status *2) Infrared LEDs shall light up *3) Infrared LEDs shall turn off
End test mode Shift to normal power-on operation
4-2. Key Check
*6) Pressing the OUTPUT key in each test mode changes the output channels as shown below.
Pressing the INPUT, EFFECT or OUTPUT key lights up the matching LED *4)
(e.g.) During L&R channel output at 1 kHz and 0dBv.
POWER key
DIGITAL1 L, R, HR LED lights up
L&R ch output
To test tone output *4) Matching LED POWER key : POWER LED, WINDOW LED INPUT key : DIGITAL1, DIGITAL2, ANAGOG LED EFFECT key : CINEMA1, CINEMA2, MUSIC LED OUTPUT key : DECODE MODE LED
DIGITAL1 L, R LED lights up
L ch ouput (R ch MUTE)
DIGITAL1 HL, HR LED lights up
R ch output (L ch MUTE)
*5) Decode mode LED
L
C
R
HR LED
LS
CS
RS
HL LED
VIRTUAL
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