Sony XR-F5100S Service Manual ▷ View online
XR-F5100S
13
3-6. GUIDE (C)
3-7. MOUNTING POSITION OF CAPSTAN/REEL MOTOR (M901)
2
guide (C)
1
three claws
two precision screws
(P2
(P2
×
2)
Note: Mount the motor so that the
angle between of the
motor and the hole for the
screw becomes 30
motor and the hole for the
screw becomes 30
°
as
shown in this figure.
capstan/reel motor
(M901)
(M901)
30˚
14
XR-F5100S
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
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.
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 – 5.39 mN
⋅m
Back Tension
CQ-102C
(1.5 – 4 g
⋅cm)
(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
Back Tension
CQ-102RC
(1.5 – 4 g
⋅cm)
(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)
•
Tape Tension Measurement
Mode
Tension Meter
Meter Reading
Forward
CQ-403A
more than 5.89 mN
◊m
(more than 69 g)
Reverse
CQ-403A
(0.69 – 2.08 oz
◊inch)
TAPE DECK SECTION
0 dB = 0.775 V
1. The adjustments should be performed in the order given in
this service manual.
2. The adjustments should be performed for both L-CH and
R-CH.
•
Test Tape
Type
Signal
Used for
P-4-A063
6.3 kHz, –10 dB
head azimuth Adjustment
WS-48A
3 kHz, 0 dB
Tape Speed Adjustment
PB HEAD AZIMUTH ADJUSTMENT
Procedure:
1. Put the set into the FWD PB mode.
2. Turn the screw and check the output peak value. Adjust the
screw so that the peak value in channels L and R coincides
within 3 dB.
within 3 dB.
3. Check the phase in the FWD PB mode.
4. Repeat the above adjustment for the REV PB mode.
5. Check that output level difference between FWD PB mode
5. Check that output level difference between FWD PB mode
and REV PB mode is within 4 dB.
Adjustment Location: See page 15
level
meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
set
speaker out terminal
4
Ω
+
–
–
screw
position
position
L-CH
peak
peak
within
3 dB
3 dB
output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
3 dB
3 dB
angle
R-CH
peak
peak
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
L-CH
R-CH
speaker out terminal
oscilloscope
V
H
+ +
–
–
Screen pattern
in phase
good
wrong
45
°
90
°
135
°
180
°
4
Ω
4
Ω
set
15
XR-F5100S
frequency counter
test tape
WS-48A
(3 kHz, 0 dB)
WS-48A
(3 kHz, 0 dB)
set
speaker out terminal
–
+
4
Ω
PB Head Azimuth Adjustment
– Set Upper View –
Tape Speed Adjustment
TAPE SPEED ADJUSTMENT
Setting:
Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that
2. Adjust adjustment resistor for inside capstan motor so that
the reading on the frequency counter becomes in 3,015 Hz.
Specified Value: 2,940 to 3,090 Hz
Adjustment Location:
TUNER SECTION
Tuner section adjustments are done automatically in this set.
16
XR-F5100S
SECTION 6
DIAGRAMS
•
Note for Printed Wiring Boards and Schematic Diagrams
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
[
no mark : FM
[
] : TAPE PLAYBACK
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
•
Signal path.
F
: FM
E
: TAPE PLAYBACK
L
: BUS AUDIO IN
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
•
Waveforms
– MAIN Board –
1
IC501
qs
(OSCOUT)
2 V/DIV, 20 ns/DIV
54 ns
4 Vp-p
2
IC501
qh
(XOUT)
2 V/DIV, 10
µ
s/DIV
30.5
µ
s
5 Vp-p
3
IC901
uf
(OSC)
1 V/DIV, 10
µ
s/DIV
22.4
µ
s
2.5 Vp-p
– DISPLAY Board –
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