Sony XR-C8100 / XR-C8100R / XR-C8100RW Service Manual ▷ View online
– 25 –
TUNER SECTION
Cautions during repair
When the tuner unit is defective, replace it by a new one because
its internal block is difficult to repair.
its internal block is difficult to repair.
Procedure :
1. Set to the test mode.
2. Push the SOURCE button and set to FM.
1. Set to the test mode.
2. Push the SOURCE button and set to FM.
FM Auto Scan/Stop Level Adjustment
Setting :
SOURCE button
: FM
FREQUENCY SELECT switch (C8100) : FM 200K
3. Push the preset 3 button.
4. Adjust with the volume RV2 on TUX10 so that the “FM”
indication 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.
0 dB = 1
µ
V
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. Set the “OFF” mode.
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.
1. Set the “OFF” mode.
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 OFF button.
1. Push the OFF button.
Note on Adjustment
The adjustments of tuner section, should be performed according
to the following sequence.
1. FM Auto Scan/Stop Level Adjustment
2. FM Stereo Separation Adjustment (WIDE)
3. FM Stereo Separation Adjustment (NARROW)
4. FM RDS S-Meter Adjustment (XR-C8100R only)
5. AM (MW) Auto Scan/Stop Level Adjustment
to the following sequence.
1. FM Auto Scan/Stop Level Adjustment
2. FM Stereo Separation Adjustment (WIDE)
3. FM Stereo Separation Adjustment (NARROW)
4. FM RDS S-Meter Adjustment (XR-C8100R only)
5. AM (MW) Auto Scan/Stop Level Adjustment
Carrier frequency : 97.9 MHz (C8100)
98.00 MHz (C8100R)
Output level
: 22 dB (12.6
µ
V)
Mode
: mono
Modulation
: 1 kHz, 22.5 kHz deviation (30%)
Display
Display
*1 : XR-C8100R has the “98.00” displayed.
*2 : “REG” is displayed only for XR-C8100R.
*2 : “REG” is displayed only for XR-C8100R.
Adjustment Location : See page 28.
Display
antenna
terminal
terminal
FM RF signal
generator
0.01
µ
F
SHUF
REG
SHUF
REG
SHUF
REG
*1
*1
*1
*2
*2
*2
– 26 –
FM Stereo Separation Adjustment (WIDE)
Setting :
SOURCE button
: FM
FREQUENCY SELECT switch (C8100) : FM 200K
FM stereo
Level meter
Level meter
signal generator
connection
reading (dB)
output channel
L-CH
L-CH
A
B
R-CH
L-CH
Adjust RV3 on TUX10
for minimum reading.
for minimum reading.
R-CH
R-CH
C
D
L-CH
R-CH
Adjust RV3 on TUX10
for minimum reading.
for minimum reading.
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 24 dB
Adjustment Location : See page 28.
Procedure :
1. Set to the test mode.
2. Push the SHIFT button.
3. Push the 4 button three times.
4. Push the 5 button once and set to WIDE mode.
1. Set to the test mode.
2. Push the SHIFT button.
3. Push the 4 button three times.
4. Push the 5 button once and set to WIDE mode.
FM Stereo Separation Adjustment (NARROW)
Setting :
SOURCE button
: FM
FREQUENCY SELECT switch (C8100) : FM 200K
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 TUX10
for minimum reading.
for minimum reading.
R-CH
R-CH
C
D
L-CH
R-CH
Adjust RV4 on TUX10
for minimum reading.
for minimum reading.
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 18 dB
Adjustment Location : See page 28.
Procedure :
1. Set to the test mode.
2. Push the SHIFT button.
3. Push the 4 button three times.
4. Push the 5 button twice and set to NARROW mode.
1. Set to the test mode.
2. Push the SHIFT button.
3. Push the 4 button three times.
4. Push the 5 button twice and set to NARROW mode.
FM RF signal
generator
generator
antenna
terminal
terminal
set
level meter
10 k
Ω
LINE OUT REAR
0.01
µ
F
Carrier frequency : 97.9 MHz (C8100)
: 98.00 MHz (C8100R)
Output level
: 70 dB (3.2 mV)
Mode
: stereo
Modulation
: main : 1 kHz, 33.75 kHz deviation (45%) (C8100)
1 kHz, 20 kHz deviation (26.5%) (C8100R)
sub : 1 kHz, 33.75 kHz deviation (45%) (C8100)
1 kHz, 20 kHz deviation (26.5%) (C8100R)
19 kHz pilot : 7.5 kHz deviation (10%)
FM RF signal
generator
generator
antenna
terminal
terminal
set
level meter
10 k
Ω
LINE OUT REAR
0.01
µ
F
Carrier frequency : 97.9 MHz (C8100)
: 98.00 MHz (C8100R)
Output level
: 70 dB (3.2 mV)
Mode
: stereo
Modulation
: main : 1 kHz, 33.75 kHz deviation (45%) (C8100)
1 kHz, 20 kHz deviation (26.5%) (C8100R)
sub : 1 kHz, 33.75 kHz deviation (45%) (C8100)
1 kHz, 20 kHz deviation (26.5%) (C8100R)
19 kHz pilot : 7.5 kHz deviation (10%)
Ver 1.1
– 27 –
– 28 –
4. Push the preset 3 button.
Display
AM (MW) Auto Scan/Stop Level Adjustment
Setting :
SOURCE
n MODE button
: AM (C8100)
MW (C8100R)
MW (C8100R)
FREQUENCY SELECT switch (C8100) : AM 10K
Procedure :
1. Set to the test mode. (See page 25.)
2. Push the SOURCE button.
3. Push the MODE button and set to AM (C8100) or MW
1. Set to the test mode. (See page 25.)
2. Push the SOURCE button.
3. Push the MODE button and set to AM (C8100) or MW
(C8100R).
Display
5. Adjust with the volume RV1 on TUX10 so that the “AM”
(C8100) or “MW” (C8100R) indication turns to “AM0” (C8100)
or “MW” (C8100R) indication on the display window.
But, in case of already indicated “AM0” (C8100) or “MW”
(C8100R), turn the RV1 so that put out light “0” indication and
adjustment.
or “MW” (C8100R) indication on the display window.
But, in case of already indicated “AM0” (C8100) or “MW”
(C8100R), turn the RV1 so that put out light “0” indication and
adjustment.
Display
Carrier frequency : 1000 kHz (C8100)
999 kHz (C8100R)
30% amplitude
modulation by
1 kHz signal
output level
modulation by
1 kHz signal
output level
: 33 dB (44.7
µ
V)
*1 : XR-C8100R has the “MW” displayed.
*2 : XR-C8100R has the “999” displayed.
*2 : XR-C8100R has the “999” displayed.
Adjustment Location : See page 28.
Carrier frequency : 98.00 MHz
Output level
Output level
: 35 dB (56.2
µ
V)
Mode
: mono
Modulation
: no modulation
Procedure :
1. Set to the test mode. (See page 25.)
2. Push the SOURCE button and set to FM.
1. Set to the test mode. (See page 25.)
2. Push the SOURCE button and set to FM.
Display
FM RDS S-Meter Adjustment (XR-C8100R only)
Setting :
SOURCE button : FM
3. Push the preset 10 button.
4. Adjust RV10 so that the display indication is “13.2”.
4. Adjust RV10 so that the display indication is “13.2”.
Display
Specification : Display indication : 13.0 to 13.4
Adjustment Location : See page 28.
FM RF signal
generator
0.01
µ
F
antenna
terminal
terminal
set
antenna
terminal
terminal
AM RF signal
generator
generator
AM dummy
antenna (50
antenna (50
Ω
)
set
30
Ω
15 pF
65 pF
SHUF
TP
SHUF
TP
SHUF
TP
*2
*2
*2
SHUF
REG
SHUF
REG
*1
*1
*1
Adjustment Location : tuner unit (TUX10)
– set lower view –
– set upper view –
L-CH
R-CH
TP (DOLBY)
DOLBY LEVEL
ADJ
TAPE SPEED ADJ
RV1
AM (MW) AUTO SCAN/
STOP LEVEL ADJ
AM (MW) AUTO SCAN/
STOP LEVEL ADJ
RV2
FM AUTO SCAN/
STOP LEVEL ADJ
FM AUTO SCAN/
STOP LEVEL ADJ
RV3
FM STEREO
SEPARATION ADJ
(WIDE)
FM STEREO
SEPARATION ADJ
(WIDE)
RV4
FM STEREO
SEPARATION ADJ
(NARROW)
FM STEREO
SEPARATION ADJ
(NARROW)
RV10
FM RDS
S-METER ADJ
(XR-C8100R only)
TUX10
RV240
(R-CH)
RV230
(L-CH)
DOLBY
LEVEL
ADJ
6-1. BLOCK DIAGRAM — TAPE SECTION —
– 29 –
– 30 –
XR-C8100/C8100R
SECTION 6
DIAGRAMS
M
M
34
32
24
16
18
19
116
103
114
105
106
107
108
109
110
4
2
7
9
111
104
112
76
35
46
47
48
72
102
113
13
27
29
R-CH
R-CH
R-CH
L
R
L
R
FWD
REV
FL
RL
EQ
DOLBY
NR
AUTO
MUSIC
SENSOR
14
17
20
MUTE
AMS/PLAY
NR ON
MTL/NRM
FWD/REV
TAPE EQ/DOLBY NR
IC250
TA-L
N-R
SO
14
CKO
16
CE
32
INH
41
11
1
14
19
17
18
ANG
36
REIN1
37
REIN0
80
NOSESW
31
TIRIND
59
PACKIND
56
POWSEL
51
DSTSEL2
MTL
DOLBY
AMS
AMS ON
POS0
POS1
POS2
POS3
POS3
LMEJ
LMLOD
CMON
REEL
TAPE ON
KEY ACK
AD ON
KEY IN0
KEY IN1
KEY IN1
RC IN0
RC IN1
RC IN1
(TAPE DET)
EJECT
FF (NOR)
REW (NOR)
REV
FWD
S901
TAPE
OPERATION
MOTOR
DRIVER
DRIVER
IC201
MOTOR
DRIVER
DRIVER
Q201, 204
BUFFER
T/R
REEL
SENSOR
8.5V REG
Q202, 203
BATT
BU5VA
BU5VA
PON10V LCD10V
GRN
YEL
TA8.5V
KEY-ACK
DETECT
Q510
KEY-ACK
DETECT
Q511
I/F+B
D510
D506
R230
DOLBY
LEVEL
(L ch)
M902
LOADING/TAPE
OPERATION MOTOR
M901
CAPSTAN/REEL
MOTOR
KEY IN
MATRIX
J500
(REMOTE IN)
LCD ANGLE
CONTROL
Q508, 509
RE900
ROTARY
ENCODER
LED
DRIVER
Q502
LED801
TIR
LED
DRIVER
Q501
LED800
(TAPE WINDOW)
LED802
C8100
C8100R
S600
(POWER SELECT)
FM50k
AM9k
FM100k
AM10k
ON
OFF
S601
FREQUENCY
SELECT
DATA
CLK
CE
CE
INH
VLCD
26-90
SEG101
|
SEG165
93-100
COM100
|
COM107
GREEN
2
AMBER
LCD900
LIQUID
CRYSTAL
DISPLAY
PANEL
COLOR
SELECT
Q900-903
LCD DRIVER
IC900
HP901
PLAYBACK HEAD
SYSTEM CONTROL
IC600 (3/3)
1
TUNER
SECTION
04
LCD
SW500
(NOSE SW)
(METAL DET)
Q250
• Signal path
: TAPE
: TAPE
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