CX-LEMV300, XR-EMV300 - Sony Car Audio Service Manual (repair manual). Page 13

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13
CX-LEMV300
[TC Test  Mode]
Procedure:
1. Extract an AC plug.
2. While depressing the  TAPE N  button, insert an AC plug.
3. The message “TC TEST” is displayed and TC test mode is
activated.
*
Zero Return
1. Press the  M >  or  .m  button.
2. The tape is rewound to the counter zero position.
*
Automatic record/playback test
1. Press  the  REC START/REC PAUSE  button.
2. The message “AUX” is displayed and AUX input is selected.
3. The tape is rewound to the counter zero position and recording
is started automatically.
4. When the  CLEAR x  button  is pressed, the tape is rewound
to the recording stated point and the set starts playback.
5. To exit from this mode, press the  POWER  button or disconnect
the power cord.
SECTION  4
MECHANICAL ADJUSTMENTS
  TAPE MECHANISM DECK SECTION
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads
pinch rollers
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head demagne-
tizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
2.94 mN • m to 7.84 mN • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.14 mN • m to 0.59 mN • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.86 mN • m to 17.64 mN • m
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
more than 0.98 N • m
100 g or more
(3.53 oz or more)
Mode
Torque meter
CQ-102C
CQ-102C
CQ-201B
CQ-403A
Meter reading
FWD
FWD
back tension
FF/REW
FWD tension
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