HCD-ZX80D/ZX100D
22
22
HCD-ZX80D/ZX100D
DVD SECTION
TEST DISC LIST
Use the following test disc on electrical adjustments.
YEDS-18 (CD)
: PART No. 3-702-101-01
PATD-012 (CD)
: PART No. 4-225-203-01
HLX-503 (DVD-SL) (NTSC) : PART No. J-6090-069-A
HLX-504 (DVD-SL) (NTSC) : PART No. J-6090-088-A
HLX-506 (DVD-SL) (PAL)
: PART No. J-6090-077-A
HLX-501 (DVD-DL) (NTSL) : PART No. J-6090-071-A
HLX-505 (DVD-DL) (NTSC) : PART No. J-6090-089-A
HLX-507 (DVD-DL) (PAL)
: PART No. J-6090-078-A
Note:
Do not use excepting test disc for DVD.
ADJUSTMENT AFTER OPTICAL PICK-UP BLOCK
REPLACED
After optical pick-up block is replaced, adjustment is necessary. In
this case, perform “EXECUTING IOP MEASUREMENT” (Refer
to page 19 in TEST MODE) next.
RFMON LEVEL CHECK
Connection :
Procedure :
1. Connect an oscilloscope to CN105 pin
6
(RFMON) and
CN105 pin
3
(GND) on the DMB15 board.
2. Press the
I/
1
button to turn the power on, and press
the
Z
OPEN/CLOSE
button to open the CD disc table.
3. Set the test disc (DVD-SL (NTSC): HLX-503 (Part No. J-
6090-069-A, CD: YEDS-18 (Part No. 3-702-101-01) on the
tray and press the
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.
+
–
DMB15 board
CN105 pin
6
(RFMON)
CN105 pin
3
(GND)
oscilloscope
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
0.58
±
1.23 Vp-p
(DVD-SL)
0.57
±
1.1 Vp-p
(CD)
IC102
– DMB15 Board (Side A) –
IC201
CN105
1
6
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
DECK A DECK B
Note :
Perform this adjustment for both decks.
Procedure:
1. Mode: Playback
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
3. Mode: Playback
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
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak
R-CH
peak
within
1dB
Screw
position
R-CH
peak
SECTION 6
ELECTRICAL ADJUSTMENTS
0 dB=0.775 V
DECK SECTION
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to
the parts adjust.
TEST TAPE
Tape
Signal
Used for
P-4-A100
10 kHz, -10 dB
Azimuth Adjustment
set
MAIN board
CN510
pin
1
(L-CH)
pin
3
(R-CH)
MAIN board
CN510
pin
2
(GND)
+
–
level meter
test tape
P-4-A100
(10 kHz, –10 dB)
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Adjustment Location: Playback Head (DECK-A)
Record/Playback/Erase Head (DECK-B)
reverse
forward
Connecting Location:
Ver. 1.2
