![background image](http://html.mh-extra.com/html/sony/hcd-gn1100d/hcd-gn1100d_service-manual_420677024.webp)
24
HCD-GN1100D
DVD SECTION
[TEST DISC LIST]
Use the following test disc on test mode.
• CD:
YEDS-18 (PART No. 3-702-101-01)
or
PATD-012 (PART No. 4-225-203-01)
• DVD (SL)
NTSC
HLX-503 (PART No. J-6090-069-A)
or
HLX-504 (PART No. J-6090-088-A)
PAL
HLX-506 (PART No. J-6090-077-A)
• DVD (DL)
NTSC
HLX-501 (PART No. J-6090-071-A)
or
HLX-505 (PART No. J-6090-089-A)
PAL
HLX-507 (PART No. J-6090-078-A)
Procedure:
1. Connect an oscilloscope to CN105 pin
6
(RFMON) and
CN105 pin
3
(GND) on the DMB16 board.
2. Turn the power on.
3. Set the test disc (DVD: HLX-503 (NTSC) or HLX-504 (PAL),
CD: YEDS-18) on the tray and press
Y
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.
Checking Location: DMB16 board (Side A)
+
–
CN105 pin
6
(RFMON)
CN105 pin
3
(GND)
oscilloscope
DMB16 board
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
RFMON signal waveform
level: 0.58 to 1.23 Vp-p (DVDSL)
0.57 to 1.1 Vp-p (CD)
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Adjustment Location: Playback Head (Deck A).
Record/Playback/Erase Head (Deck B).
set
MAIN
board
CN510
test tape
P-4-A100
(10 kHz, –10 dB)
pin
3
oscilloscope
L-CH
R-CH
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
pin
2
pin
1
L
R
Note:
When the BASE UNIT is replaced, perform the IOP measurement
(Refer to page 20 of the TEST MODE).
[RFMON Level Check]
Connection:
forward
reverse
IC102
IC101
IC104
IC201
CN105
CN109
DMB16 BOARD
(SIDE A)
CN105 pin
3
(GND)
CN105 pin
6
(RFMON)
1
6
Summary of Contents for HCD-GN1100D
Page 105: ...105 HCD GN1100D MEMO ...