Read Sony CMT-EP50 / HCD-EP50 Service Manual online
12
HCD-EP50
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.
so that outputs match within 1dB of peak.
3. Mode: Playback (FWD)
4. Repeat step 1 to 3 in playback (REV) mode.
5. After the adjustments, apply suitable locking compound to the
5. After the adjustments, apply suitable locking compound to the
parts adjusted.
Screw
position
position
L-CH
peak
peak
within
1dB
1dB
Output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
1dB
1dB
Screw
position
position
R-CH
peak
peak
test tape
P-4-A100
(10 kHz, –10 dB)
P-4-A100
(10 kHz, –10 dB)
L-CH
R-CH
MAIN board
SPEAKER terminal (CN17)
SPEAKER terminal (CN17)
oscilloscope
V
H
+ +
–
–
screen pattern
in phase
good
wrong
45
°
90
°
135
°
180
°
47 k
Ω
47 k
Ω
set
Record/Playback Head Azimuth Adjustment
Procedure:
1. Mode: Playback (FWD)
1. Mode: Playback (FWD)
level meter
test tape
P-4-A100
(10 kHz, –10 dB)
P-4-A100
(10 kHz, –10 dB)
set
MAIN board
SPEAKER terminal (CN17)
SPEAKER terminal (CN17)
47 k
Ω
+
–
–
Adjustment Location: Record/Playback Head.
Note: Refer to “3-7. CASSETTE LID” (see page 10)
Click on the first or last page to see other CMT-EP50 / HCD-EP50 service manuals if exist.