Sony WX-C5000 User manual
1
CD player section
Signal-to-noise ratio 94 dB
Frequency response 5 – 20,000 Hz
Wow and flutter Below measurable limit
Cassette player section
Tape track 4-track 2-channel stereo
Wow and flutter 0.08 % (WRMS)
Frequency response 30 – 20,000 Hz
Signal-to-noise ratio
Cassette type Dolby B NR Dolby NR off
TYPE II, IV 67 dB 58 dB
TYPE I 64 dB 55 dB
Model Name Using Similar Mechanism WX-C55
CD Drive Mechanism Type MG-378X-121
Optical Pick-up Name KSS-521A
Model Name Using Similar Mechanism WX-C55
Tape Transport Mechanism Type MG-25E-136
SERVICE MANUAL
E Model
WX-C5000
CHANGER CONTROL AUDIO MASTER
SPECIFICATIONS
– Continued on next page –
CD
Section
TC
Section
DolbynoisereductionmanufacturedunderlicensefromDolbyLabo-
ratories Licensing Corporation.
“DOLBY” and the double-D symbol ;are trademarks of Dolby
Laboratories Licensing Corporation.
Tuner section
FM
Tuning range FM tuning interval:
50 kHz/200 kHz switchable
87.5 – 108.0 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
Aerial terminal External aerial connector
Intermediate frequency 10.7 MHz
Usable sensitivity 9 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 65 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.7% (stereo),
0.4% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
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2
SERVICE NOTE
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
NOTES ON PICK-UP FLEXIBLE BOARD
The pick-up flexible board in this set is secured to the optical pick-
up with an adhesive tape. Once the tape is removed, an adhering
force becomes weak, and it cannot be reused.
Therefore, if the optical pick-up is replaced, replace also the pick-
up flexible board with a new one.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
AM
Tuning range AM tuning interval:
9 kHz/10 kHz switchable
531 - 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)
Aerial terminal External aerial connector
Intermediate frequency 10.71 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 45 W ×4 (at 4 ohms)
General
Outputs Audio outputs (2)
Power aerial relay
control lead
Power amplifier control
lead
Intputs Telephone ATT control
lead
Illumination control lead
Bus audio input connector
Bus control input
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178 ×100 ×181 mm
(w/h/d)
Mounting dimension Approx. 178 ×100 ×160 mm
(w/h/d)
Mass Approx. 2.2 kg
Supplied accessories Parts for installation and
connections (1 set)
Dummy cover (1)
Design and specifications are subject to change without
notice.
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3
TABLE OF CONTENTS
1. GENERAL
Location of Controls............................................................... 4
Getting Started........................................................................ 4
CD Player ............................................................................... 4
Cassette Player ....................................................................... 5
Radio ...................................................................................... 5
Other Functions ...................................................................... 5
CD/MD Unit ........................................................................... 6
Additional Information ........................................................... 7
Connections ............................................................................ 8
2. DISASSEMBLY
2-1. Cover ................................................................................ 10
2-2. Front Panel Assy .............................................................. 10
2-3. CD Mechanism Block ...................................................... 11
2-4. TR Board, Heat Sink ........................................................ 11
2-5. CD Board ......................................................................... 12
2-6. Chassis (U) ....................................................................... 12
2-7. Tape Mechanism Block .................................................... 13
2-8. Main Board ...................................................................... 13
2-9. Chassis (TM) Assy ........................................................... 14
2-10. Sensor Board .................................................................... 14
2-11. Servo Board...................................................................... 15
2-12. Roller Assy ....................................................................... 15
2-13. Chassis (OP) (O/S) Assy .................................................. 16
2-14. Optical Pick-up Block ...................................................... 16
3. ASSEMBLY OF MECHANISM DECK
3-1. Housing ............................................................................ 17
3-2. Arm (Suction)................................................................... 17
3-3. Lever (LDG-A)/(LDG-B) ................................................ 18
3-4. Gear (Loading FT) ........................................................... 18
3-5. Guide (C).......................................................................... 19
3-6. Capstan/Reel Motor (M904) ............................................ 19
4. MECHANICAL ADJUSTMENTS .............................. 20
5. ELECTRICAL ADJUSTMENTS
Tape Section ......................................................................... 21
Tuner Section........................................................................ 21
CD Section ........................................................................... 24
6. DIAGRAMS
6-1. IC Pin Descriptions .......................................................... 25
6-2. Block Diagram –CD Section–.......................................... 29
6-3. Block Diagram –Tape Section– ....................................... 30
6-4. Block Diagram –Main Section–....................................... 31
6-5. Circuit Boards Location ................................................... 32
6-6. Printed Wiring Boards –CD Mechanism Section–........... 33
6-7. Schematic Diagram –CD Mechanism Section (1/2)– ...... 34
6-8. Schematic Diagram –CD Mechanism Section (2/2)– ...... 35
6-9. Printed Wiring Board –TR Section– ................................ 36
6-10. Schematic Diagram –TR Section– ................................... 36
6-11. Printed Wiring Board –CD Section– ................................ 36
6-12. Schematic Diagram –CD Section–................................... 37
6-13. Printed Wiring Board –Main Section– ............................. 38
6-14. Schematic Diagram –Main Section (1/4)– ....................... 40
6-15. Schematic Diagram –Main Section (2/4)– ....................... 41
6-16. Schematic Diagram –Main Section (3/4)– ....................... 42
6-17. Schematic Diagram –Main Section (4/4)– ....................... 43
6-18. Printed Wiring Board –Control Section– ......................... 44
6-19. Schematic Diagram –Control Section– ............................ 46
6-20. Printed Wiring Board –Jog Section–................................ 47
6-21. Schematic Diagram –Jog Section–................................... 47
7. EXPLODED VIEWS
7-1. Cover Section ................................................................... 53
7-2. Front Panel Section .......................................................... 54
7-3. Chassis Section ................................................................ 55
7-4. Tape Mechanism Section ................................................. 56
7-5. CD Mechanism Section (1) .............................................. 57
7-6. CD Mechanism Section (2) .............................................. 58
7-7. CD Mechanism Section (3) .............................................. 59
8. ELECTRICAL PARTS LIST ................................... 60
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10
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. COVER
2-2. FRONT PANEL ASSY
2claws
1PTT 2.6x
5
3cover
2PTT 2.6x5
1PTT 2.6x5
3claw
7CN501
5CN801
6CN500
8front panel assy
4claw
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2-3. CD MECHANISM BLOCK
2-4.TR BOARD, HEAT SINK
2CN802
3CD mechanism block
5bracket (CD)
1PTT 2.6x5
4PTT 2.6x5
5PTT 2.6x12
6PTT 2.6x12
7PTT 2.6x12
3TR board
1PTT 2.6x1
0
2cover (D/D converter)
8PTT 2.6x12
9heat sink
4CN901
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3PTT 2.6x5
1PTT 2.6x5
2PTT 2.6x5
4chassis (U)
6insulating sheet (U)
5CD board
2CN402
1CN803
4
3ground point screw
(PTT2.6x6)
ground point screw
(PTT2.6x6)
2-5. CD BOARD
2-6. CHASSIS (U)
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3MAIN board
4insulating sheet (L
)
ground point screw
(PTT2.6x6)
ground point screw
(PTT2.6x6)
2PTT 2.6x5
1PTT 2.6x5
4CN300
3CN600
5tape mechanism block
2-7.TAPE MECHANISM BLOCK
2-8. MAIN BOARD
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2claw
4PS 2x3
5SENSOR board
1claw
3guide (DISC M)
6chassis (TM) assy
3P 2x3
1P 2x3
5CN4
4claw
2P 2x
3
2-9. CHASSIS (TM) ASSY
2-10. SENSOR BOARD
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7roller assy
4washer
6retaining ring (roller)
retaining ring (roller)
washer washer
Fig. 1
5arm (roller)
arm (roller) arm (roller
)
2compression spring (RA-R)
3compression spring (RA-L)
1tension spring (RA-E)
8PS 2x3
9LOAD board
8PS 2x5
7PS 2x5
5P 2x3
4wires
3Removal the
two solders.
1CN3
2CN2
9SERVO board
6loading motor assy
2-11. SERVO BOARD
•When installing, take note of the positions
arm (roller) and washers. (Fig. 1)
2-12. ROLLER ASSY
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1P 2x3
2sled motor assy
3optical pick-up bloc
k
6chassis (OP) (O/S) assy
7compression spring (FL)
8compression spring (FL)
1tension spring (KF8)
3damper (T)
2damper (T)
4Fit lever (D) in the
direction of the arrow.
5Turn loading ring in the
direction of the arrow.
2-14. OPTICAL PICK-UP BLOCK
2-13. CHASSIS (OP) (O/S) ASSY
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17
2Move the arm (suction) in the arro
w
Direction and fit on projection.
1Fit the arm (suction) on the shaft.
projection
7Holder the hanger by bending the claw.
1Install the catcher to the hanger.
2Install the hanger onto
two claws of the housing.
3Put the housing
under Apart. 6Fit projection on Dpart.
4Fit claw on Bpart.
5Fit projection on Cpart.
8Hold the hanger by
bending the claw.
hanger
housing
Dpart
Cpart
Bpart
Apart
SECTION 3
ASSEMBLY OF MECHANISM DECK
Note : Follow the assembly procedure in the numerical order given.
3-1. HOUSING
3-2. ARM (SUCTION)
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4Align hole in the gear (LDG-D)
with hole the lever (LDG-A).
3Move the lever (LDG-B)
in the arrow direction.
2tension spring (LD-2)
1
2tension spring (LD-1)
6polyethylene washer
5gear (loading FT)
gear (LDG-D)
gear (LDG-FB)
lever (LDG-A)
hole
hole
3-3. LEVER (LDG-A) / (LDG-B)
3-4. GEAR (LOADING FT)
1Fit the lever (LDG-A) on
shafts Ato Cand install it.
2Fit the lever (LDG-B) on
shafts Aand Band install it.
3type-E stop ring 2.0
shaft A
shaft C
shaft A
shaft B
shaft B
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19
3belt (25)
2precision screws P 2x3
1main motor assy
(CAPSTAN/REEL) (M904
)
30°
1claws
2guide (C)
3-5. GUIDE (C)
3-6. CAPSTAN / REEL MOTOR (M904)
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20
TEST MODE
This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and AMAuto Scan/Stop Level adjustments can be
performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Turn ON the regulated power supply to ACC and BATT
terminals is “OFF”position (display 1:00).
2. Push the preset 4 button.
3. Push the preset 5 button.
4. Press the preset 1 button for more than two seconds.
5. Then the display and LED on the front panel indicates all lights,
the test mode is set.
<Release the Test Mode>
1. Push the OFF button.
PRECAUTION
1. Wipe the following components with an absorbent cotton cloth
moistened with alcohol before adjustment :
PB head Pinch roller
Idler Rubber belt
Capstan
2. Demagnetize the PB head using a head demagnetizer.
3. Be careful not to use a magnetized screwdriver.
4. After the adjustment is completed, lock the adjustment parts
using screws.
5. Unless otherwise specified, make adjustments at the specified
voltage (14.4 V).
Torque Measurement
Mode Torque Meter Meter Reading
2.95 –6.37 mN •m
FWD (30 –65 g •cm)
CQ-102C (0.42 –0.90 oz •inch)
0.05 –0.44 mN •m
FWD (0.5 –4.5 g •cm)
Back Tension (0.01 –0.06 oz •inch)
2.95 –6.37 mN •m
REV (30 –65 g •cm)
CQ-102RC (0.42 –0.90 oz •inch)
0.05 –0.44 mN •m
REV (0.5 –4.5 g •cm)
Back Tension (0.01 –0.06 oz •inch)
5.89 –19.61 mN •m
FF, REW CQ-201B (60 –200 g •cm)
(0.83 –2.78 oz •inch)
Tape Tension Measurement
Mode Tension Meter Meter Reading
882.60 mN
FWD CQ-403A (more than 90 g)
REV CQ-403R (more than 3.17 oz)
SECTION 5
ELECTRICAL ADJUSTMENTS
SECTION 4
MECHANICAL ADJUSTMENTS
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9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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