Sony XR-L240 Service Manual ▷ View online
XR-L240
10
2-5.
HEAT SINK
1
five screws
(PTT2.6
(PTT2.6
×
10)
1
two screws
(PTT2.6
(PTT2.6
×
10)
2
heat sink
2-6.
BRACKET (MD)
1
claw
1
claw
1
claw
2
four screws
(B2.6
(B2.6
×
4)
3
bracket (MD)
XR-L240
11
2-7.
MOTOR (CAPSTAN/REEL) (M901)
1
two screws
(P2
(P2
×
2.5)
4
motor (capstan/reel)
(M901)
(M901)
3
sub belt (C)
2
main belt
Note : When installing motor,
adjust the screw and
screw hole of motor.
screw hole of motor.
2-8.
MAIN BELT, SUB BELT (C)
1
main belt
4
sub belt (c)
2
screw
(PTP2
(PTP2
×
3)
A
2
screw
(PTP2
(PTP2
×
3)
2
screw
(PTP2
(PTP2
×
3)
2
screw
(PTP2
(PTP2
×
3)
3
Lift up the bottom BKT (TS)
in the direction of arrow
in the direction of arrow
A
(as far as the belt can be removed).
XR-L240
12
2-9.
HEAD (PLAYBACK) (HP901)
2
screw
(PTT2
(PTT2
×
4)
1
screw
(P2
(P2
×
3)
3
FF/REV lever section
9
screw
(P2
(P2
×
4)
5
screw
(PTP2
(PTP2
×
3)
qd
Remove three head lead
wires from the
adjuster arm blue.
wires from the
adjuster arm blue.
head (HP901)
head lead wire
adjuster arm blue
• HEAD LEAD WIRE COLOR INDICATION
ON HEAD (HP901) AND SLIDE SW BOARD.
0
SPG support plate
7
PSW (reel) B
8
HP roller (A)
qa
adjuster arm SPG (A)
qs
adjuster arm SPG (B)
qf
head (playback) (HP901)
6
slide SW board
4
Remove the three solders
of head lead wires.
of head lead wires.
yellow lead wire
black lead wire
red lead wire
slide SW board
13
XR-L240
SECTION 3
MECHANICAL ADJUSTMENTS
SECTION 4
ELECTRICAL ADJUSTMENTS
Mode
Tension Meter
Meter Reading
Forward
CQ-403A
more than 5.89 mN•m
(more than 60 g)
Reverse
CQ-403R
(more than 2.12 oz)
• Tape Tension Measurement
1. Clean the following parts with a denatured-alcohol-moistened
swab:
playback head
pinch roller
rubber belt
capstan
idler
2. Demagnetize the playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the power supply
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the power supply
voltage (14.4 V) unless otherwise noted.
Note:
With this set, it is not necessary to apply suitable locking
compound to the parts after the azimuth adjustment.
compound to the parts after the azimuth adjustment.
• Torque Measurement
Mode
Torque Meter
Meter Reading
2.46 – 5.39 mN•m
Forward
CQ-102C
(25 – 55 g•cm)
(0.35 – 0.76 oz•inch)
Forward
0.15 – 0.39 mN•m
CQ-102C
(1.5 – 4 g•cm)
Back Tension
(0.02 – 0.06 oz•inch)
2.46 – 5.39 mN•m
Reverse
CQ-102RC
(25 – 55 g•cm)
(0.35 – 0.76 oz•inch)
Reverse
0.15– 0.39 mN•m
CQ-102RC
(1.5 –
4 g•cm)
Back Tension
(0.02 – 0.06 oz•inch)
4.91 – 14.70 mN•m
FF, REW
CQ-201B
(50 – 150 g•cm)
(0.69 – 2.08 oz•inch)
TEST MODE
This set have the test mode function. In the test mode, FM RDS S-
Meter, FM Auto Seek/Stop Level and MW Auto Seek/Stop Level
adjustments can be performed easier than it in ordinary proce-
dure.
Meter, FM Auto Seek/Stop Level and MW Auto Seek/Stop Level
adjustments can be performed easier than it in ordinary proce-
dure.
<Set the Test Mode>
1. Turn ON the regulated power supply. (All LEDs on the set
1. Turn ON the regulated power supply. (All LEDs on the set
lights up, and the clock is displayed.)
Note:
Press the
[OFF]
button, if the clock is not displayed.
2. Push the
[4]
button.
3. Push the
[5]
button.
4. Press the
[1]
button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the
1. Push the
[OFF]
button.
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