Sony CFS-K1066 / CFS-K1066S Service Manual ▷ View online
– 5 –
SECTION 3
DISASSEMBLY
Note :
Follow the disassembly procedure in the numerical order given.
3-1. CABINET (FRONT) ASSY REMOVAL
3-2. POWER BOARD REMOVAL
r
The equipment can be removed using the following procedure.
1
Screws
(+BVTP 3x14) : CFS-K1066
(+BV 3x14) : CFS-K1066S
(+BV 3x14) : CFS-K1066S
2
Cabinet (rear) assy
Cabinet (front) assy
1
Screws
(+BV 3x10)
2
Cabinet (rear) assy
Power board
Bracket (T)
Function switch board, Main volume board, MIC volume board
Cabinet (Front ) assy
Set
Tuner board
Power board
Mechanism deck
Main board
Cabinet (Rear) assy
– 6 –
3-3. TUNER BOARD REMOVAL
3-4. MECHANISM DECK REMOVAL
3
Screws (+BV 3x10)
Mechanism deck
1
STOP/EJECT button
4
2
Cabinet (front) assy
4
Screw
(+P 2.6x6)
2
Screws (+BVTP 2.6x8)
8
Claws
8
Claws
7
Screw (+BV 3x8)
Tuner board
Knob (TUN)
6
5
3
1
9
Pointer
Chassis
Cabinet (front) assy
– 7 –
3-5. FUNCTION SWITCH BOARD, MAIN VOLUME BOARD, MIC VOLUME BOARD REMOVAL
3-6. MAIN BOARD REMOVAL
2
3
Main board
Retainer board (B)
Retainer board (A)
1
Screws (+BVTP 2.6x8)
Claws
Claw
Main board
Cabinet (front)
8
Screws (+BVTP 2.6x8)
MIC volume board
Main volume board
2
7
9
3
Knob (VOL)
4
Knob (MIC)
6
Claws
5
Screws (+BVTP 2.6x8)
Retainer board (A)
Function switch board
1
Screw (+BVTP 2.6x8)
Cabinet (front) assy
– 8 –
Record/Playback Head Azimuth Adjustment
Procedure :
1. Mode : playback
1. Mode : playback
2. Turn the adjustment screw for the maximum output levels. If
these levels do not match, turn the adjustment screw until both
of output levels match together within 3dB.
of output levels match together within 3dB.
Phase Check
Mode : Playback
Mode : Playback
3. After the adjustment, lock the screw with locking compound.
Adjustment Location :
SECTION 4
ADJUSTMENTS
4-1. MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
pinch roller
erase head
rubber belt
capstan
2. Demagnetize the record/playback head with a head demagne-
tizer. (Do not bring the head demagnetizer close to the erase
head.)
head.)
3. Do not use a magnetized screwdriver for 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.
Torque Measurement
Torque
Torque Meter
Meter Reading
Playback
CQ-102C
30 – 60 g • cm
(0.42 – 0.83 oz• inch)
Back Tension
CQ-102C
1 – 5 g • cm
(0.014 – 0.069 oz• inch)
Rewind
CQ-201B
more than 75 g • cm
Fast Forward
(more than 1.05 oz• inch)
Tape Tension Measurement
Mode
Tension Meter
Meter Reading
FWD
CQ-403A
more than 100g (3.53 oz)
4-2. ELECTRICAL ADJUSTMENTS
TAPE SECTION
1. The adjustments should be performed in the order give in the
service manual. (As a general rule, playbak circuit adjustment
should be completed before performing recording circuit adjust-
ment.)
should be completed before performing recording circuit adjust-
ment.)
2. The adjustments should be performed for both L-CH and R-CH
unless otherwise indicated.
• Switch location
FUNCTION switch
• • • • • • • • • • • • • • • •
TAPE (RADIO OFF)
PRESET MODE
• • • • • • • • • • • • • • • • • • • •
MANUAL
GRAPHIC EQUALIZER
• • • • • • •
center click
BALANCE
• • • • • • • • • • • • • • • • • • • • • • • • • • • •
center click
VOLUME
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
MAX
MEGA BASS
• • • • • • • • • • • • • • • • • • • • • • • •
mechanical center
KARAOKE MODE switch
• • • • •
OFF
Standard Output Level
Output terminal
PHONES
SP (FRONT) OUT
Load impedance
32
Ω
3.2
Ω
Output signal level
0.25V (–10dB)
0.775V (0dB)
Test Tape
Type
Signal
Used for
WS-48A
3kHz, 0dB
Tape Speed Adjustment
P-4-A063
6.3kHz, –10dB
Azimuth Adjustment
0dB=0.775V
set
L
R
test tape
P-4-A063
(6.3kHz, –10dB)
P-4-A063
(6.3kHz, –10dB)
32
Ω
level meter
phones jack
L-CH
peak
peak
R-CH
peak
peak
L-CH
peak
peak
R-CH
peak
peak
Screw
position
position
output
level
level
within
3 dB
3 dB
within
3 dB
3 dB
screw position
L
R
in phase 45
°
90
°
135
°
180
°
good
wrong
set
L-CH
R-CH
screen pattern
level meter
phones jack
32
Ω
32
Ω
adjustment screw
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