Sony XR-CA600X / XR-CA620X Service Manual ▷ View online
XR-CA600X/CA620X
13
3-3.
LEVER (LDG-A) / (LDG-B)
3-4.
GEAR (LDG-FT)
shaft A
shaft B
shaft C
1
Fit the lever (LDG-A) on
shafts A – C and install it.
shafts A – C and install it.
shaft A
shaft B
2
Fit the lever (LDG-B) on
shafts A and B and
install it.
shafts A and B and
install it.
3
type-E stop ring 2.0
gear (LDG-D)
5
gear (LDG-FT)
6
polyethylene washer
2
tension spring (LD-2)
2
tension spring (LD-1)
gear (LDG-FB)
lever (LDG-A)
hole
hole
4
Align hole in the gear (LDG-D)
with hole the lever (LDG-A).
with hole the lever (LDG-A).
3
Move the lever (LDG-B)
in the arrow direction.
in the arrow direction.
1
XR-CA600X/CA620X
14
3-5.
GUIDE (C)
3-6.
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˚
XR-CA600X/CA620X
15
15
2.6 Vp-p
21.6
µ
s
3.2 Vp-p
54.2 ns
5.1 Vp-p
30.6
µ
s
SECTION 6
DIAGRAMS
6-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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
(
) : AM
〈〈
〉〉
: TAPE PLAYBACK
∗
: Impossible to measure
• 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
f
: AM
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.
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 –
– MAIN Board –
1
IC501
qs
(OSCOUT)
2
IC501
qh
(XOUT)
– KEY Board –
3
IC501
uf
(OSC)
Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the
reading on the frequency counter becomes 3,000 Hz.
Specification: Constant speed
Adjustment Location:
Tape Speed Adjustment
– SET UPPER VIEW –
SECTION 4
MECHANICAL ADJUSTMENTS
• 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.
• Torque Measurement
Mode
Torque Meter
Meter Reading
2.95 – 6.37 mN•m
Forward
CQ-102C
(30 – 65 g•cm)
(0.42 – 0.90 oz•inch)
Forward
0.05 – 0.44 mN•m
CQ-102C
(0.5 – 4.5g•cm)
Back Tension
(0.01 – 0.06 oz•inch)
2.95 – 6.37 mN•m
Reverse
CQ-102RC
(30 – 65 g•cm)
(0.42 – 0.90 oz•inch)
Reverse
0.05 – 0.44 mN•m
CQ-102RC
(0.5 – 4.5g•cm)
Back Tension
(0.01 – 0.06 oz•inch)
5.89 – 19.61 mN•m
FF, REW
CQ-201B
(60 – 200 g•cm)
(0.83 – 2.78 oz•inch)
Mode
Tension Meter
Meter Reading
Forward
CQ-403A
more than 60 g
(more than 2.12 oz)
Reverse
CQ-403R
more than 60 g
(more than 2.12 oz)
SECTION 5
ELECTRICAL ADJUSTMENTS
0 dB=0.775 V
Tape Speed Adjustment
Setting:
Frequency counter
2,955 to 3,075 Hz
TAPE DECK SECTION
frequency counter
test tape
WS-48A
(3 kHz, 0 dB)
WS-48A
(3 kHz, 0 dB)
set
AUDIO OUT jack (CNJ151)
–
+
10 k
Ω
TUNER SECTION
Tuner section adjustments are done automatically in this set.
XR-CA600X/CA620X
16
16
(FM/AM TUNER UNIT)
FM/AM
ANTENNA IN
AUDIO OUT
REAR
BUS AUDIO
IN
25
1
2
24
IC751
BUS CONTROL IN
CN581
(REMOTE IN)
(NOSE DETECT)
SUB BOARD
1-680-157-
11
MAIN BOARD
A
CN301
3
2
1
(CA620X)
B
C
D
E
F
G
H
I
J
K
L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
D1
F-12
D351
I-13
D352
I-13
D501
K-8
D502
G-10
D552
H-12
D553
K-9
D581
G-13
D582
E-12
D584
C-14
D585
C-13
D586
C-13
D610
F-10
D611
F-10
D614
E-11
D622
E-7
D701
L-4
D702
K-4
D703
K-4
D704
K-5
D705
L-3
D706
G-5
D707
K-3
D708
K-3
D709
L-3
D710
L-4
D711
L-3
D712
G-5
D721
D-9
D722
E-9
D723
D-10
D724
E-9
D731
E-8
D732
E-9
D733
E-9
D734
D-10
D781
E-13
IC301
J-5
IC331
G-5
IC351
J-14
IC501
I-9
IC551
L-11
IC581
E-12
IC611
G-14
IC751
C-8
Q171
C-5
Q181
C-4
Q271
C-6
Q281
C-5
Q351
J-13
Q352
I-13
Q353
I-12
Q354
H-13
Q551
K-8
Q571
E-9
Q581
G-13
Q601
K-13
Q602
K-14
Q621
F-7
Q622
F-8
Q631
L-6
6-2.
PRINTED WIRING BOARD – MAIN Board –
• Semiconductor
Location
Ref. No.
Location
(Page 20)
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