Electrical Adjustments - Sony TC-K611S Service Manual
Stereo cassette deck
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Also See for TC-K611S:
- Service manual (39 pages) ,
- Service manual (38 pages) ,
- Operating instructions manual (19 pages)
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SECTION 4
ELECTRICAL ADJUSTMENTS
Note:
The adjustment should be performed in the order
given in the service manual. As a rule, adjustments
about playback
should be perfomed
before those
about recording.
The adjustments should be perfomed before for both
L-CH and R-CH.
@
Switches
and controls shoud be set as follows unless
otherwise specified.
DOLBY NR switch:
OFF
MPX FILTER switch: OFF
MONITOR
switch:
Tape
e
Standard Record:
Deliver the standard input signal level to the input jack
and set the REC LEVEL control to obtain the standard
output signal level.
—Record Mode—
AF OSC
@
attenuator
10kQ
VTVM
LINE IN
LINE OUT
OdB=775mV
Standard Input Level
input terminal
LINE IN
10k0
0.5V (—3.8dB)
Standard Output Level
LINE OUT
47
0.5V (-3.84B)
Test Tape
Used for
P-4-A100
10kHz, —10dB
Azimth Adjustment
Test Mode
This set will get into test mode
by shorting the pins of
CNE702 (TEST) on MAIN
board before turning the power
on.
Record/Playback Head Azimuth Adjustment
Procedure :
1.
Mode:
FWD playback
Tast tape
P-4-A100
VTVM
(10kHz, —10dB)
le T=]
47kQ
LINE OUT
2.
Turn the adjustment
screw
for the maximum
output
levels. If these levels do not match, turn the adjustment
screw until both of output levels match together within 1
dB
within
L-CH
peak
within
1dB
Screw
position
L-CH peak
R-CH peak
3.
Phase Check
Mode:
playback
test tape
P-4-A100
(10kHz, —10dB)
oscilloscope
L-CH
47kQ
LINE OUT
Screen pattern
90°
135°
180°
ed
Wrong
in phase
45°
Good
4,
After the adjustment, lock the screws with locking com-
pound.
Adjustment Location:
Record/Playback head
Adjustment screw
(TC-K707ES/K711S)
Adjustment screw
(TC-K611S)
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