SONY DPIF8000
Instrukcja Serwisowa

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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