Sony CFD-S03CP / CFD-S03CPL Service Manual ▷ View online
13
CFD-S03CP/S03CPL
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
pinch roller
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head demagnetizer.
(Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power
4. The adjustments should be performed with the rated power
supply voltage (9V) unless otherwise noted.
Torque Measurement
Mode
Torque meter
Meter reading
2.95 – 6.86 mN • m
FWD
CQ-102C
(30 – 70 g • cm)
(0.42 – 0.97 oz • inch)
FWD
0.15 – 0.53 mN • m
Back Tension
CQ-102C
(1.5 – 5.5 g • cm)
(0.021 – 0.076 oz • inch)
more than 5.88 mN • m
FF
CQ-201B
(more than 60 g • cm)
(more than 0.83 oz • inch)
more than 5.88 mN • m
REW
CQ-201B
(more than 60 g • cm)
(more than 0.83 oz • inch)
Tape Tension Measurement
Mode
Tension meter
Meter reading
FWD
CQ-403A
more than 100 g
(more than 3.53 oz)
TAPE SECTION 0 dB = 0.775 V
• Standard Output Level
Output terminal
HP OUT
load impedance
32
Ω
output signal level
0.25 V (–10 dB)
• Test Tape
Type
Signal
Used for
WS-48A
3 kHz, 0 dB
tape speed adjustment
Tape Speed Adjustment
Procedure:
Mode: playback
Mode: playback
Adjust so that the value on the digital frequency counter is
3,000 Hz.
3,000 Hz.
Specification Value:
Digital frequency counter
2,910 to 3,090 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,910 to 3,090 Hz.
tape winding are between 2,910 to 3,090 Hz.
Adjustment Location:
i
jack (J321)
set
32
Ω
test tape
WS-48A
(3 kHz, 0 dB)
WS-48A
(3 kHz, 0 dB)
digital frequency
counter
counter
Tape speed adjustment
control inside motor
control inside motor
14
CFD-S03CP/S03CPL
TUNER SECTION 0 dB = 1
µ
V
[AM (MW/LW)]
Setting:
Function: RADIO/BAND/AUTO PRESET
Band: MW or LW
Function: RADIO/BAND/AUTO PRESET
Band: MW or LW
[FM]
Setting:
Function: RADIO/BAND/AUTO PRESET
BAND button: FM
Function: RADIO/BAND/AUTO PRESET
BAND button: FM
• Connecting Digital Voltmeter (FM, MW and LW)
• 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.
+
–
–
i
jack (J321)
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 loop
antenna close to
the set.
antenna close to
the set.
level meter
set
32
Ω
set
i
jack (J321)
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
32
Ω
0.01
µ
F
MAIN board
TP ANT2 (JW231, 232)
TP ANT2 (JW231, 232)
+
–
–
digital voltmeter
TP (VT)
TP (GND)
100 k
Ω
MAIN board
AM (MW/LW) IF ADJUSTMENT
Adjust for a maximum reading on level meter
T1
450 kHz
LW FREQUENCY COVERAGE ADJUSTMENT (AEP)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L3
279 kHz
5.3 ± 0.5 V
Confirmation
153 kHz
0.6 ± 0.05 V
LW TRACKING ADJUSTMENT (AEP)
Adjust for a maximum reading on level meter
ANT1-2
162 kHz
CT5
261 kHz
MW FREQUENCY COVERAGE ADJUSTMENT (AEP)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
Confirmation
531 kHz
0.9 ± 0.2 V
Confirmation
1,611 kHz
5.5 ± 0.5 V
MW FREQUENCY COVERAGE ADJUSTMENT
(EXCEPT CND, AEP, E92, MX)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L3
531 kHz
0.8 ± 0.05 V
Confirmation
1,611 kHz
5.0 ± 0.5 V
MW FREQUENCY COVERAGE ADJUSTMENT (CND, E92, MX)
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L3
530 kHz
0.8 ± 0.5 V
Confirmation
1,710 kHz
5.8 ± 0.05 V
MW TRACKING ADJUSTMENT (EXCEPT CND, E92, MX)
Adjust for a maximum reading on level meter
ANT1-1
621 kHz
CT3
1,404 kHz
MW TRACKING ADJUSTMENT (CND, E92, MX)
Adjust for a maximum reading on level meter
ANT1-1
620 kHz
CT3
1,400 kHz
FM IF ADJUSTMENT
Adjust for a minimum reading on level meter
L6
10.7 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjustment Part
Frequency Display
Reading on Digital Voltmeter
L2
108 MHz
3.0 ± 0.2 V
Confirmation
87.5 MHz
1.5 ± 0.5 V
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L1
87.5 MHz
CT1
108 MHz
Adjustment and Connecting Location:
MAIN board (See page 15)
MAIN board (See page 15)
• Abbreviation
CND : Canadian model
E92 : AC 120V area in E model
MX : Mexican model
E92 : AC 120V area in E model
MX : Mexican model
Ver. 1.2
15
CFD-S03CP/S03CPL
Adjustment Location:
Test Point:
ANT1-2: LW TRACKING
ADJUSTMENT
CT5: LW TRACKING
ADJUSTMENT
CT1: FM TRACKING
ADJUSTMENT
L1: FM TRACKING
ADJUSTMENT
T1: AM (MW/LW)
IF ADJUSTMENT
L6: FM IF ADJUSTMENT
L3: AM (MW/LW)
FREQUENCY COVERAGE
ADJUSTMENT
ADJUSTMENT
L2: FM FREQUENCY
COVERAGE
ADJUSTMENT
ADJUSTMENT
– MAIN BOARD (Component Side) –
ANT1-1: MW TRACKING
ADJUSTMENT
CT3: MW TRACKING
ADJUSTMENT
IC1
ANT1
C31
C33
C70
R39
C16
C34
R15
C69
R13
C55
R23
R26
C51
C45
R7
C21
C4
R11
C9
R28
D6
R20
R2
R18
R1
C1
C2
C6
C54
C32
E92,MX
MODEL
MODEL
C40
C41
C22
R35
C42
R29
C20
R9
IC1
C68
R3
C53
R12
C7
R38
C38
C46
R37
C60
R5
C63
R34
R36
C13
R25
Q35
R31
C14
C10
C11
C12
R6
R30
C35
C37
C27
R19
C26
R16
R17
C24
C62
Q32
C15
Q33
C61
R32
C64
C25
C28
R10
R22
C3
R21
R4
C5
R14
R27
C67
R41
C72
JW207
C23
JW2
JW188
D2
L2
D1
JW187
X1
C29
JW224
C39
C18
L3
C19
JW217
JW208
C17
T1
JW191
CT5
C30
CF3
CF2
JW218
CT1
D3
CT3
L1
JW232
JW231
D5
JW223
L6
JW209
JW220
JW226
D4
JW219
TP (VT)
TP (GND)
TP ANT2
– MAIN BOARD (Conductor Side) –
16
CFD-S03CP/S03CPL
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC201 pin u; and pin th (or
TP (RFAC0) and TP (VC)).
2. Insert the disc (PATD-012 (Tr 15)). (Part No. : 4-225-203-01)
3. Press the N X (CD) button.
4. Confirm that the oscilloscope waveform is as shown in the figure
3. Press the N X (CD) button.
4. Confirm that the oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape ( ) in the
center of the waveform can be clearly distinguished.
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)
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
and raise vertical sensitivity.
Test Point:
B9
RFACI
VC
FEI
TEI
RFACO
APC
R257
C258
C260
C261
R258
C304
C208
R265
R266
R267
C264
C265
R278
C214
R270
C221
C292
C291
R292
R291
IC201
C217
C218
1
30
31
60
61
90
100
91
C224
03
C256
C251
C252
C254
C253
R254
R255
R252
R253
CN301
C213 C222
03
C301
C303
C273
R268
C230
R250
1-868-067-
(11)
11
TP (RFAC0)
TP (VC)
– BD83S BOARD (Conductor Side) –
RF level :
1.1 Vp-p
1.1 Vp-p
VOLT/DIV : 50 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
TIME/DIV : 500 nS
+0.3
–0.2
–0.2
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