• Service Manuals |
  • Sony |
  • Audio |
  • DXA-WZ5, DXA-WZ50, MHC-WZ5

DXA-WZ5, DXA-WZ50, MHC-WZ5 - Sony Audio Service Manual (repair manual). Page 9

Read Sony DXA-WZ5 / DXA-WZ50 / MHC-WZ5 Service Manual online

9
DXA-WZ5
SECTION 3
ELECTRICAL ADJUSTMENTS
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.
Note:
Confirm each contents of this section first of all. If the results are
not satisfied, do the adjustment.
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.
4.
The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5.
The adjustments should be performed in the order given in this
service manual.
6.
The adjustments should be performed for both L-CH and R-
CH.
7.
Switches and controls should be set as follows unless otherwise
specified.
• Test Tape
Record/Playback Head Azimuth Adjustment
Procedure:
1.
Mode:  Playback
set
SPEAKER terminals (TM402)
L-CH, R-CH
+
–
level meter
test tape
P-4-A63J
(10 kHz, –10 dB)
Screw
position
L-CH
peak
within
1 dB
Output
level
L-CH
peak
R-CH
peak
within
1 dB
Screw
position
R-CH
peak
set
test tape
P-4-A63J
(10 kHz, –10 dB)
R-CH
oscilloscope
L-CH
R-CH
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
SPEAKER terminals (TM402)
L-CH
3.
Mode: Playback
4.
Repeat step 1 to 3 in playback (REV) mode.
5.
After the adjustments, apply suitable locking compound to the
pats adjusted.
DECK  SECTION
Tape
Signal
Used for
P-4-A63J
10 kHz, –10 dB
Azimuth Adjustment
0 dB=0.775 V
Page of 24
Display

Click on the first or last page to see other DXA-WZ5 / DXA-WZ50 / MHC-WZ5 service manuals if exist.

Random: