Sony CFD-E100 / CFD-E100L Service Manual ▷ View online
17
CFD-E100/E100L
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
450 kHz
( ): Singapore, Taiwan, Korean model
AM CV VOLTAGE ADJUSTMENT (CFD-E100 only)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L4
530 kHz (531 kHz)
1.0
± 0.05 V
Confirmation
1,710 kHz
5.3
± 0.7 V (4.8 ± 0.7 V)
(1,611 kHz)
LW CV VOLTAGE ADJUSTMENT (CFD-E100L only)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L4
153 kHz
0.6
± 0.05 V
Confirmation
279 kHz
5.3
± 0.7 V
MW CV VOLTAGE ADJUSTMENT (CFD-E100L only)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
Confirmation
531 kHz
0.9
± 0.4 V
Confirmation
1,611 kHz
5.2
± 0.5 V
( ): Singapore, Taiwan, Korean model
AM TRACKING ADJUSTMENT (CFD-E100 only)
Adjust for a maximum reading on level meter
L3
620 kHz (621 kHz)
CT3
1,400 kHz (1,404 kHz)
MW TRACKING ADJUSTMENT (CFD-E100L only)
Adjust for a maximum reading on level meter
L3-1
621 kHz
CT3
1,404 kHz
LW TRACKING ADJUSTMENT (CFD-E100L only)
Adjust for a maximum reading on level meter
L3-2
162 kHz
CT5
261 kHz
FM IF ADJUSTMENT
Adjust for a minimum reading on level meter
T2
10.7 MHz
FM CV VOLTAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
108 MHz
3.0
± 0.2 V
Confirmation
87.5 MHz
1.3
± 0.3 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
87.5 MHz
CT1
108 MHz
Adjustment Location: TU board (See page 18)
TUNER SECTION
0 dB=1
µ
V
[AM]
Setting:
Function: RADIO
Band: AM
Function: RADIO
Band: AM
[FM]
Setting:
Function: RADIO
Band: FM
Function: RADIO
Band: FM
• Repeat the procedures in each adjustment several times, and
the tracking adjustments should be finally done by the trimmer
capacitors.
capacitors.
• Remove FM antenna in FM adjustment.
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible
modulation by
400 Hz signal
Output level:
as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
+
–
–
level meter
set
3.2
Ω
HEADPHONE
TRANSLATION board
CN361 pin
TRANSLATION board
CN361 pin
3
HEADPHONE
TRANSLATION board
CN361 pin
TRANSLATION board
CN361 pin
4
FM RF signal
generator
75 kHz frequency
deviation by 1 kHz
signal
Output level:
as low as possible
deviation by 1 kHz
signal
Output level:
as low as possible
+
–
–
level meter
HEADPHONE
TRANSLATION board
CN361 pin
TRANSLATION board
CN361 pin
3
HEADPHONE
TRANSLATION board
CN361 pin
TRANSLATION board
CN361 pin
4
set
3.2
Ω
0.01
µ
F
TU board
TP (GND)
TP (GND)
TU board
TP (ANT)
TP (ANT)
digital voltmeter
TP (VT)
TP (GND)
100 k
Ω
TU board
Ver. 1.1
18
CFD-E100/E100L
Adjustment Location:
(CFD-E100L)
(CFD-E100)
– TU BOARD (Component Side) –
– TU BOARD (Conductor Side) –
L4
AM CV Voltage Adjustment (CFD-E100)
LW CV Voltage Adjustment (CFD-E100L)
L2
FM CV Voltage Adjustment
MW Tracking Adjustment
L3-1
CT3
CT3
FM Tracking Adjustment
T1 AM IF Adjustment
T2 FM IF Adjustment
L1
CT1
CT1
AM Tracking Adjustment
L3
CT3
CT3
LW Tracking Adjustment
CT5
L3-2
L3-2
TP (VT)
TP (GND)
TP (ANT)
19
CFD-E100/E100L
RF LEVEL CHECK
Procedure:
1. Connect the oscilloscope to TP (RF) and TP (VREF) on the
CD board.
2. Set the CD test mode.
3. Press the
3. Press the
u
button twice to display “A–”.
Note:
If this check is performed continuously after the TRAVERSE
CHECK, press the u button once.
CHECK, press the u button once.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
Connecting Location:
CD SECTION
Perform all CD section check in the test mode.
ENTERING THE CD TEST MODE
Procedure:
1. Insert the test disc (YEDS-18 (part No. 3-702-101-01)).
2. Press the [POWER] button to turn the power on.
3. While pressing the [DISPLAY, ENTER] and [VOLUME +] buttons,
2. Press the [POWER] button to turn the power on.
3. While pressing the [DISPLAY, ENTER] and [VOLUME +] buttons,
open and close the CD lid, and release two buttons.
4. If the CD test mode is activated, all segments of the LCD light
up.
5. To release this mode, press the [POWER]] button to turn the
power off.
TRAVERSE CHECK
Procedure:
1. Connect an oscilloscope to TP (TE) and TP (VREF) on the
CD board.
2. Set the CD test mode.
3. Press the
3. Press the
u
button twice to display “FC”.
4. Confirm that the center of the oscilloscope waveform is at 0 V.
5. Confirm that the oscilloscope waveform Vp-p value is at 1
5. Confirm that the oscilloscope waveform Vp-p value is at 1
±
0.5 V.
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
TIME/DIV: 500 ns
1.1
±
0.2 V
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
for AC range and raise vertical sensitivity.
VOLT/DIV: 0.2 V (with the 10:1 probe in use)
TIME/DIV : 1 ms
TIME/DIV : 1 ms
0 V
A
B
A=B
Vp-p=A+B
Vp-p=A+B
TP
(RF)
TP
(TE)
TP
(VREF)
IC701
IC702
– CD BOARD (Conductor Side) –
20
CFD-E100/E100L
MEMO
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