Sony MDX-C5960R / MDX-C5970 / MDX-C5970R Service Manual ▷ View online
– 13 –
LO MOTOR ASS’Y (LOADING) (M903)
LEVER (LE) ASS’Y
4
Remove the bracket (LO)
in the direction of the arrow
in the direction of the arrow
A
.
1
Remove solders of motor (M903)
5
LO motor ass’y (loading)
(M903)
(M903)
2
tension spring (rack)
3
claw
A
2
stopper washer
2
lever (LE) ass’y
3
roller (GLE)
1
– 14 –
HOLDER ASS’Y
CHUCKING ARM ASS’Y
1
Remove the chucking arm ass’y
in the direction of the arrow.
in the direction of the arrow.
holder ass’y
2
type-E stopring 1.5
2
type-E stopring 1.5
3
lever (lock L)
2
type-E stopring 1.5
2
type-E stopring 1.5
4
Remove the holder ass’y in the
direction of the arrow.
direction of the arrow.
1
spring (CHKG)
1
spring (CHKG)
3
lever (lock R)
– 15 –
OPTICAL PICK-UP (KMS-241B/J1NP)
SL MOTOR ASS’Y (SLED) (M902), SP MOTOR ASS’Y (SPINDLE) (M901)
6
bearing (SL)
5
feed screw ass’y
3
screw
(K2
(K2
×
3)
2
shaft (SL2)
1
two screws
(K2
(K2
×
3)
7
optical pick-up
(KMS-241B/J1NP)
(KMS-241B/J1NP)
4
screw
(B2
(B2
×
3)
4
screw
(P1.7
(P1.7
×
1.8)
5
bracket (SL)
9
two screws
(P1.7
(P1.7
×
1.8)
!º
retainer (SP)
!¡
SP motor ass’y
(spindle) (M901)
(spindle) (M901)
7
screw
(B2
(B2
×
3)
2
two screws
(2
(2
×
8)
3
sensor board
1
Remove solders of motors
(M901, M902)
(M901, M902)
8
base (SL)
6
SL motor ass’y
(sled) (M902)
(sled) (M902)
– 16 –
SECTION 3
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.
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. Turn ON the regulated power supply. (The clock is displayed)
1. Turn ON the regulated power supply. (The clock is displayed)
Note:
Press the
[OFF]
button, if the clock is not displayed.
2. Push the preset
[4]
button.
3. Push the preset
[5]
button.
4. Press the preset
[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.
MD SECTION
MD section adjustments are done automatically in this set.
TUNER SECTION
Note:
Adjust the tuner section in the sequence shown below.
1. FM Auto Scan/Stop Level Adjustment.
2. FM Stereo Separation Adjustmnet.
3. AM (MW) Auto Scan/Stop Level Adjustment.
4. RDS S-Meter Adjustment. (MDX-C5960R/5970R)
2. FM Stereo Separation Adjustmnet.
3. AM (MW) Auto Scan/Stop Level Adjustment.
4. RDS S-Meter Adjustment. (MDX-C5960R/5970R)
FM Auto Scan/Stop Level Adjustment
Setting:
[SOURCE]
button: FM
FREQUENCY SELECT switch: FM 200 k (E model)
Procedure:
1. Set to the test mode.
2. Push the
1. Set to the test mode.
2. Push the
[SOURCE]
button and set to FM.
Display
0 dB=1 µV
See the adjustment location from on page 18 for the ad-
justment.
justment.
Cautions during repair
When the tuner unit is defective, replace it by a new one be-
cause its internal block is difficult to repair.
cause its internal block is difficult to repair.
3. Adjust with the volume RV2 on TU1 so that the “FM” indica-
tion turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV2 so that
put out light “0” indication and adjustment.
But, in case of already indicated “FM0”, turn the RV2 so that
put out light “0” indication and adjustment.
Display
*1: MDX-C5960R/C5970R indicate “98.00”.
Adjustment Location: See page 18.
FM Stereo Separation Adjustment
Setting:
[SOURCE]
button: FM
FREQUENCY SELECT switch: FM 200 k (E model)
Procedure:
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specification: Separation more than 30 dB
Adjustment Location: See page 18.
FM RF signal
generator
Carrier frequency: 97.9 MHz (MDX-C5970)
98.0 MHz (MDX-C5960R/C5970R)
Output level
: 22 dB (12.6
µ
V)
Mode
: mono
Modulation
: 1 kHz, 22.5 kHz deviation (30%)
0.01
µ
F
set
antenna jack (J1)
FM RF signal
generator
0.01
µ
F
set
antenna jack (J1)
+
–
–
LINE OUT jack (CNP300)
level meter
10 k
Ω
MDX-C5970
MDX-C5960R/
C5970R
C5970R
Carrier frequency
97.9 MHz
98.0 MHz
Output level
60 dB (1 mV)
70 dB (3.2 mV)
Mode
stereo
stereo
main
1 kHz, 33.75 kHz
1 kHz, 16.25 kHz
deviation (45%)
deviation (21.7%)
Modulation
sub
1 kHz, 33.75 kHz
1 kHz, 16.25 kHz
deviation (45%)
deviation (21.7%)
19 kHz
7.5 kHz
7.5 kHz
pilot
deviation (10%)
deviation (10%)
FM Stereo
Level meter
Level meter
signal generator
connection
reading (dB)
output channel
L-CH
L-CH
A
B
R-CH
L-CH
Adjust RV4 on TU1
for minimum reading.
R-CH
R-CH
C
D
L-CH
R-CH
Adjust RV4 on TU1
for minimum reading.
SHUF
*1
SHUF
*1
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