DOWNLOAD Sony XR-C5120RA Service Manual ↓ Size: 2.77 MB | Pages: 36 in PDF or view online for FREE

Model
XR-C5120RA
Pages
36
Size
2.77 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
xr-c5120ra.pdf
Date

Sony XR-C5120RA Service Manual ▷ View online

5
HOUSING
ARM (SUCTION)
Note:
 Follow the assembly procedure in the numerical order given.
SECTION  3
ASSEMBLY  OF  MECHANISM  DECK
A
 part
C
 part
B
 part
D
 part
8
Hold the hanger by
bending the claw.
6
 Fit projection on 
D
 part.
4
 Fit claw on 
B
 part.
3
Put the housing 
under 
A
 part.
5
 Fit projection on 
C
 part.
1
 Install the catch to the hanger. 
2
Install the hanger onto 
two claws of the housing.
7
 Holder the hanger by bending the claw. 
hanger
housing
2
Move the arm (suction) in the arrow 
direction and fit on projection.
1
 Fit the arm (suction) on the shaft. 
projection
6
LEVER (LDG-A) / (LDG-B)
GEAR (LDG-FT)
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  
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
7
GUIDE (C)
MOUNTING  POSITION  OF  CAPSTAN/REEL  MOTOR (M901)
2
 guide (C)
1
 three claws
two precision screws
(P2 
×
 2)
capstan/reel motor
(M901)
30˚
8
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. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the power supply
voltage unless otherwise noted.
• Torque  Measurement
Mode
Torque Meter
Meter Reading
Forward
CQ-102C
30 – 65 g•cm
(0.42 – 0.90 oz•inch)
Forward
CQ-102C
0.5 – 4.5g•cm
Back Tension
(0.01 – 0.06 oz•inch)
Reverse
CQ-102RC
30 – 65 g•cm
(0.42 – 0.90 oz•inch)
Reverse
CQ-102RC
0.5 – 4.5g•cm
Back Tension
(0.01 – 0.06 oz•inch)
FF, REW
CQ-201B
60 – 200 g•cm
(0.83 – 2.78 oz•inch)
Mode
Tension Meter
Meter Reading
Forward
CQ-403A
more than 90 g
(more than 3.18 oz)
Reverse
CQ-403R
more than 90 g
(more than 3.18 oz)
SECTION  5
ELECTRICAL  ADJUSTMENTS
TEST  MODE
This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments
can be performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Set the “power select” switch (S501) is “A (ON)” position.
2. 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.
3. Push the preset 
[4]
 button.
4. Push the preset 
[5]
 button.
5. Press the preset 
[1]
 button for more than two seconds.
6. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the 
[OFF]
 button.
2. Return the “power select” switch (S501) to initially set posi-
tion.
See the adjustment location from on page 11 for the
adjustment.
0 dB=0.775 V
Tape Speed Adjustment
Setting:
Speed checker
Frequency counter
–1.5 to +2.5%
2,955 to 3,075 Hz
TAPE  DECK  SECTION
Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the
reading on the speed checker or frequency counter becomes in
specification.
Specification: Constant speed
Adjustment Location: See page 11.
set
+
test tape
WS-48A
(3 kHz, 0 dB)
AUDIO OUT jack (CNJ151) 
10 k
speed checker
or
frequency counter
Page of 36
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