Sony CFD-D505 / CFS-E14L Service Manual ▷ View online
– 5 –
• Standard output level
Output Pin
Speaker (L, R)
PHONES
Signal source impedance
3.2
Ω
32
Ω
Output signal level
0.775 V
0.245 V
(0 dB)
(–10 dB)
0 dB=0.775 V
TAPE RECORDER SECTION
• Test Tape
Type
Signal
Used for
WS-48A
3 kHz, 0 dB
tape speed adjustment
Tape Speed Adjustment
Procedure:
Mode: playback
Mode: playback
3-1. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab:
record/playback head pinch roller
erase head
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagentizer. (Do not bring the head demagnetizer close to the
erase head.)
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power sup-
ply voltage unless otherwise noted.
Tape Tension Measurement
Meter
Meter Reading
CQ-403A
more than 70 g (2.46 oz)
Torque Measurement
Torque
Meter Reading
Torque Meter
Forward
22.5-55 g•cm
CQ-102C
(0.31-0.76 oz•inch)
Fast Forward and
45-120 g•cm
Rewind
(0.63-1.67 oz•inch)
CQ-201B
Back Tension
2-5g•cm
CQ-102C
(0.03-0.07 oz•inch)
32
Ω
test tape
WS-48A
(3 kHz, 0dB)
WS-48A
(3 kHz, 0dB)
set
phones jack
speed checker
LFM-30 or
digital frequency
counter
LFM-30 or
digital frequency
counter
+
–
Adjustment Value:
Speed checker
Digital frequency counter
–1.3 to 0.6%
2,990 ± 30 Hz
Frequency difference between the beginning and the end of the tape
should be within 1.5% (45 Hz).
should be within 1.5% (45 Hz).
Adjustment Location:
M901
adjusting variable resistor
3-2. ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Adjustments should be performed in the order given.
Generally playback circuit adjustments should be completed
before performing recording circuit adjustments.
before performing recording circuit adjustments.
2. Adjustments should be performed for both L-ch and R-ch.
Control should be set as follows unless otherwise specified.
• Position of control knob
TONE ........................................................................... maximum
• Standard recording position
Adjust the VOLUME knob so that the following regulated input/
output signal levels are obtained.
output signal levels are obtained.
• Standard input level
Input Pin
MIC
Signal source impedance
300
Ω
Input signal level
2.5 mV (–50 dB)
Frequency
1 kHz
SECTION 3
ADJUSTMENTS
– 6 –
TUNER SECTION
[AM]
FUNCTION switch
: RADIO
FINE TUNING control : Mechanical
BAND switch
BAND switch
: SW, MW, LW
[FM]
FUNCTION switch: RADIO
BAND switch:
BAND switch:
FM
AM IF ADJUSTMENT
Adjust for a maximum reading on VTVM.
T1
455 kHz
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on VTVM.
L4
145 kHz
CT8
300 kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
L10
160 kHz
CT7
260 kHz
MW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on VTVM.
L8
520 kHz
CT4
1,680 kHz
MW TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
L3
620 kHz
CT3
1,400 kHz
SW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on VTVM.
L6
5.8 MHz
CT6
18.4 MHz
SW TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
L5
5.8 MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on VTVM.
L2
87.0 MHz
CT2
108.3 MHz
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on VTVM.
L1
87.0 MHz
CT1
108.3 MHz
AM RF SSG
30% amplitude modulation by
400 Hz signal
output level: as low as possible
400 Hz signal
output level: as low as possible
Put the lead-wire
antenna close to
the set.
antenna close to
the set.
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
done by the trimmer capacitors.
set
+
–
–
phones
32
Ω
level meter
FM RF SSG
0.01
µ
F
22.5 kHz frequency deviation
by 400 Hz signal.
output level: as low as possible
by 400 Hz signal.
output level: as low as possible
to ANT IN terminal
– 7 –
FM VCO Adjustment
Procedure:
1. Connect frequency counter to the positions shown below.
2. Tune the set to 98 MHz.
3. Adjust RV1 for 76 kHz ± 500 Hz reading on the frequency
2. Tune the set to 98 MHz.
3. Adjust RV1 for 76 kHz ± 500 Hz reading on the frequency
counter.
FM RF SSG
0.01
µ
F
Carrier frequency: 98 MHz
Modulation: no modulation
Output level: 0.1 V(100 dB)
Modulation: no modulation
Output level: 0.1 V(100 dB)
to ANT IN terminal
+
–
–
1
µ
F
33 k
Ω
frequency counter
+
IC1 Pin
4
IC1 Pin
7
• Adjustment Parts Location
[TUNER BOARD] (Component Side)
L10: LW TRACKING
L3
CT3
MW TRACKING
CT2
L2
FM FRQUENCY
COVERAGE
COVERAGE
CT1
L1
FM TRACKING
T1: AM IF
L4: LW FREQUENCY
COVERAGE
L5: SW TRACKING
L8: MW FREQUENCY
COOVERAGE
L6
CT6
SW FREQUENCY
COVERAGE
COVERAGE
CT7: LW TRACKING
CT8: LW FREQUENCY
COVERAGE
CT4: MW FREQUENCY
COVERAGE
IC1
– 15 –
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearrance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
ample:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
The components identified by mark
! or dotted line with mark ! are
! or dotted line with mark ! are
critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference num-
ber in the exploded views are not supplied.
ber in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list.
packing materials are given in the last of the
electrical parts list.
SECTION 5
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
X-3371-983-1 HOLDER (CASS) SUB ASSY (for BLACK)
1
X-3371-984-1 HOLDER (CASS) SUB ASSY (for WHITE)
1
X-3371-985-1 HOLDER (CASS) SUB ASSY (for BLUE)
2
X-3372-122-1 CABINET (FRONT) SUB ASSY (for BLUE)
2
X-3372-135-1 CABINET (FRONT) SUB ASSY (for BLACK)
2
X-3372-137-1 CABINET (FRONT) SUB ASSY (for WHITE)
3
3-929-176-01 SPRING, CASS
4
3-351-377-11 DAMPER
5
3-929-161-01 KNOB, VOLUME (for BLACK,BLUE)
5
3-929-161-11 KNOB, VOLUME (for WHITE)
6
3-929-162-01 KNOB, TONE (for BLACK,BLUE)
6
3-929-162-11 KNOB, TONE (for WHITE)
7
3-929-164-01 KNOB, TUNING (for BLACK,BLUE)
7
3-929-164-11 KNOB, TUNING (for WHITE)
8
3-929-168-01 SHAFT, TUNING
9
3-388-401-11 LID, BATTERY CASE (for BLUE)
9
3-388-401-32 LID, BATTERY CASE (for WHITE)
9
3-388-401-52 LID, BATTERY CASE (for BLACK)
10
3-929-160-01 KNOB, BAND (for BLACK,BLUE)
10
3-929-160-11 KNOB, BAND (for WHITE)
ANT1
1-501-480-11 ANTENNA, TELESCOPIC (FM)
SP901
1-504-286-11 SPEAKER (9.2CM)(L CH)
SP902
1-504-286-11 SPEAKER (9.2CM)(R CH)
(1) FRONT CABINET SECTION
9
1
2
#1
#2
SP902
10
5
6
7
8
ANT1
#2
#4
SP901
4
3
#5
#3
#3
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