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Electrical Adjustment - Sony STR DA2400ES - 7.1 Channel Home Theater AV Receiver Service Manual

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STR-DA2400ES/DG920
BIAS ALIGNMENT ADJUSTMENT
(DA2400ES: AEP, Continental European, East European,
Russian and UK only)
Note: Afer 10 minutes or more have passed since the power supply was
turned on, this adjustment is done.
Connection:
digital voltmeter
CN6102 pin
,
,
(CN6104 pin
,
,
,
)
CN6102 pin
,
,
(CN6104 pin
,
,
,
)
Procedure:
1. Connect a digital voltmeter to the CN6102 (CN6104).
2. Press the [POWER] button to turn on the main power.
3. Adjust the RV400 (RV470, RV500, RV570, RV600, RV670,
RV700) so that the digital voltmeter reading is 5 mV to 20
mV.
Adjustment and Connection Location:
– MAIN Board (Conductor Side) –
RV400
RV470
RV570
RV600
(CENTER)
(F-L)
(SUR-L)
(F-R)
– A-CLASS SUPPORT A Board
(Conductor Side) –
9
1
CN6104
– A-CLASS SUPPORT B Board
(Conductor Side) –
1
9
CN6102
24
SECTION 5

ELECTRICAL ADJUSTMENT

+
RV500
RV670
RV700
(SUR-R)
(SBL)
(SBR)
VIDEO CALIBRATION ADJUSTMENT
Adjustment to decide the standard of the video input signal.
Note: After replacing DIGITAL VIDEO board, or after "SUPER RESET"
of the special menu mode is executed, perform this adjustment.
Connection:
color pattern
generator
color bars 100%
VIDEO board COMPONENT VIDEO COMPO 2 IN jack (J6001)
DVD VIDEO IN jack (J6004)
Procedure:
1. "DVD" is selected by using [INPUT SELECTOR] jog.
2. Connect a color pattern generator to the COMPONENT VID-
EO COMPO 2 IN jack (J6001) on the VIDEO board and DVD
VIDEO IN jack (J6004) on the VIDEO board.
3. Input NTSC color bars signal from the color pattern genera-
tor.
4. Press the [POWER] button to turn off the main power
5. While pressing the [2CH/A.DIRECT] and [SPEAKERS (OFF/
A/B/A+B)] buttons, press the [POWER] button to turn on the
main power. It enters the test mode, and display as below.
V.CALIBRATION START? y N: MWx_____
(PAL input) P: MWx_____
(HD input) H: MWx_____
6. In state of step 5, press the [MEMORY/ENTER] button. The
adjustment is automatically completed, and result is written in
the EEPROM, and display as below.
(NTSC input) N: MWo C_V__
(PAL input)
P: MWo C_V__
(HD input)
H: MWo C____
7. Input PAL color bars signal from the color pattern generator.
8. Perform step 4 to 6.
9. Input HD color bars signal (720p or 1080i) from the color pat-
tern generator.
10. Perform step 4 to 6.
11. When all the adjustments end, display as below.
FIN N:P:H
set

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