DOWNLOAD Sony CFD-F15CP Service Manual ↓ Size: 4.71 MB | Pages: 56 in PDF or view online for FREE

Model
CFD-F15CP
Pages
56
Size
4.71 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-f15cp.pdf
Date
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13
CFD-F15CP
3-8.
TC BOARD
3-9.
RF BELT, SUB BELT (B)
2
hook
1
screw
3
Remove soldering from the four points.
yellow red gray
black
4
TC board
TC board
1
two screws
(+bind DT M2x 6)
3
pulley motor section
2
hook
4
RF belt
5
sub belt (B)
14
CFD-F15CP
3-10. CD MECHANISM SECTION
3-11. CD/MP3 BOARD
1
four screws
(+PWH 2.6 x10)
2
CD mechanism section
1
screw
(+BVTP 2 
×
 6)
3
wire (flat type) 
(20 core)
4
wire (flat type) 
(16 core) (CNP701)
5
CD/MP3 board
2
Remove soldering from the four points.
15
CFD-F15CP
i 
jack (J321)
set
32 
Ω
test tape
WS-48A
(3 kHz, 0 dB)
digital frequency
counter
  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
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 demagne-
tizer. (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
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)
SECTION 5
ELECTRICAL ADJUSTMENTS
SECTION 4
MECHANICAL ADJUSTMENTS
Adjust so that the value on the digital frequency counter is
3,000 Hz.
Specification Value:
Digital frequency counter
2,940 to 3,060 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,970 to 3,030 Hz.
Adjustment Location:
Tape speed adjustment
control inside motor
16
CFD-F15CP
digital
voltmeter
100 k
Ω
TP (VT)
i
 jack (J321)
set
32 
Ω
level meter
(range: 0.5–5 V ac)
Put the lead-wire
antenna close to
the set.
AM RF signal
generator
TP (FM IN)
FM RF signal
generator
0.01 
µ
F
set
  TUNER SECTION     0 dB = 1 
µ
V
• AM Section
Setting:
RADIO BAND•AUTO PRESET button: MW or LW
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
• FM Section
Setting:
RADIO BAND•AUTO PRESET button: FM
30% amplitude
modulation by
400 Hz signal
• Connecting Level Meter (FM, MW)
MW IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1
450 kHz
MW FREQUENCY COVERAGE
CHECK
Frequency Display
531 kHz
1,611 kHz
Reading on Digital voltmeter
1.0 
± 0.5 V
5.2 
± 0.6 V
Adjustment Part
<confirmation> <confirmation>
MW TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter.
L3
CT3
621 kHz
1,404 kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2
10.7 MHz
FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display
87.5 MHz
108 MHz
Reading on Digital voltmeter
1.3 
± 0.3 V
3.0 
± 0.2 V
Adjustment Part
<confirmation>
L2
FM TRACKING  ADJUSTMENT
Adjust for a maximum reading on level meter.
L1
CT1
87.5 MHz
108 MHz
Adjustment Location: See page 17.
• Connecting Digital Voltmeter (FM, MW)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
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