DOWNLOAD Sony XR-CA640X Service Manual ↓ Size: 3.18 MB | Pages: 42 in PDF or view online for FREE

Model
XR-CA640X
Pages
42
Size
3.18 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
xr-ca640x.pdf
Date

Sony XR-CA640X Service Manual ▷ View online

12
XR-CA640X
3-3.
ARM (SUCTION)
2
Move the arm (suction) in the arrow 
direction and fit on projection.
1
 Fit the arm (suction) on the shaft. 
projection
shaft 
A
shaft 
B
shaft 
C
1
Fit the lever (LDG-A) on
shafts 
A
 – 
C
 and install it.
shaft 
A
shaft 
B
2
Fit the lever (LDG-B) on  
shafts 
A
 and 
B
 and 
install it.
3
 type-E stop ring 2.0  
3-4.
LEVER (LDG-A) / (LDG-B)
13
XR-CA640X
3-6.
GUIDE (C)
2
 guide (C)
1
 three claws
3-5.
GEAR (LDG-FT)
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). 
3
Move the lever (LDG-B)
in the arrow direction.
1
14
XR-CA640X
3-7.
MOUNTING  POSITION  OF  CAPSTAN/REEL  MOTOR (M901)
two precision screws
(P2 
×
 2)
Note: Mount the motor so that the 
angle between      of the 
motor and the hole for the 
screw      becomes 30
°
 as
shown in this figure.
capstan/reel motor
(M901)
30˚
15
XR-CA640X
Procedure:
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
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)
set
AUDIO OUT REAR jack (CNJ151)
+
10 k
TUNER  SECTION
Tuner section adjustments are done automatically in this set.
Page of 42
Display

Click on the first or last page to see other XR-CA640X service manuals if exist.