Electrical Adjustments - Sony HCD-GNZ5D Servise Manual

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HCD-GNZ5D
Ver. 1.1
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3 7 63 1515 0
DVD SECTION
When the base unit is replaced, perform the adjustment and the
measurement as shown below in this order.
1) MIRROR TIME ADJUSTMENT (See page 20)
2) EXECUTING IOP MEASUREMENT (See page 22)
[TEST DISC LIST]
Be sure to use the DVD disc that matches the signal standards of
your region.
• CD
YEDS-18 (Part No.: 3-702-101-01)
PATD-012 (Part No.: 4-225-203-01)
• DVD SL (Single Layer)
NTSC : HLX-503 (Part No.: J-6090-069-A)
HLX-504 (Part No.: J-6090-088-A)
PAL : HLX-506 (Part No.: J-6090-077-A)
• DVD DL (Dual Layer)
NTSC : HLX-501 (Part No.: J-6090-071-A)
HLX-505 (Part No.: J-6090-089-A)
PAL : HLX-507 (Part No.: J-6090-078-A)
[RFMON Level Check]
Connection:
DMB11 board
CN105 pin 6 (RFMON)
CN105 pin 3 (GND)
TE
L 13942296513
Procedure:
1. Connect an oscilloscope to CN105 pin 6 (RFMON) and
CN105 pin 3 (GND) on the DMB11 board.
2. Turn the power on.
3. Set the test disc (refer to the TEST DISC LIST) on the tray
and press H button to playback.
4. Confirm that oscilloscope waveform is clear and check
RFMON signal level is correct or not.
Note: A clear RFMON signal waveform means that the shape "◊" can be
clearly distinguished at the center of the waveform.
RFMON signal waveform
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SECTION 6

ELECTRICAL ADJUSTMENTS

oscilloscope
+
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 0.58 ± 1.23 Vp-p (DVD)
0.57 ± 1.1 Vp-p (CD)
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2 9
8
Checking Location: DMB10 board (Side A)
IC102
IC101
CN106
CN105 pin 6 (RFMON)
VIDEO SECTION
Video Level Check (VIDEO BOARD)
Purpose
This adjustment is made to satisfy the NTSC standard, and if not
Q Q
3
6 7
1 3
1 5
adjusted correctly, the brightness will be too large or small.
set
J801
VIDEO OUTPUT
Procedure:
1. Connect oscilloscope to VIDEO output.
2. Load a DVD reference disc playback.
3. Check the video signal level is 1.00±0.07Vp-p.
(WHITE 100%)
co
.
9 4
2 8
IC104
IC201
6
1
CN105
CN105 pin 3 (GND)
0 5
8
2 9
9 4
2 8
oscilloscope
75 Ω
1.00 ± 0.07 Vp-p
m
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