Sony CDX-4000-X Service manual
CDX-4000X/4005/4800X
SERVICE MANUAL
Ver 1.1 2000. 08
Photo: CDX-4000X
• The tuner and CD sections have no adjustments.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
19 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more
than 1% total harmonic distortion.
Other Specifications
CD player section
System Compact disc digital audio
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Laser Diode Properties (CDX-4000X/4005)
Material GaAlAs
Wavelength 780 nm
Emission Duration Continuous
Laser output power Less than 44.6 µW*
* This output is the value measured at a distance
of 200 mm from the objective lens surface on the
Optical Pick-up Block.
Tuner section
FM
Tuning range CDX-4000X/4005:
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 66 dB (stereo),
system
87.5 – 107.9 MHz
CDX-4800X:
FM tuning interval:
50 kHz/200 kHz
switchable
87.5 – 108 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
72 dB (mono)
US Model
Canadian Model
CDX-4000X/4005
E Model
CDX-4800X
Model Name Using Similar Mechanism NEW
CD Drive Mechanism Type MG-383Z-121//K
Optical Pick-up Name KSS-720A
Harmonic distortion at 1 kHz
0.6% (stereo),
0.3% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
AM
Tuning range CDX-4000X/4005:
530 – 1,710 kHz
CDX-4800X:
AM tuning interval:
9 kHz/10 kHz
switchable
531 – 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity 30 µV
Power amplifier section
Outputs Speaker outputs
(sure seal connectors)
Speaker impedance 4 – 8 ohms
Maximum power output 50 W × 4 (at 4 ohms)
– Continued on next page –
FM/AM COMPACT DISC PLAYER
MICROFILM
1
Ver 1.1 2000. 08
k
General
Outputs Audio outputs
Power antenna relay
control lead
Power amplifier control
lead
Telephone ATT control
lead
Tone controls Bass ±9 dB at 100 Hz
Treble ±9 dB at 10 kHz
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178 × 50 × 183 mm
(7 1/8 × 2 × 7 1/4 in.)
(w/h/d)
Mounting dimensions Approx. 182 × 53 × 162 mm
(7 1/4 × 2 1/8 × 6 1/2 in.)
(w/h/d)
Mass Approx. 1.2 kg (2 lb. 10 oz.)
Supplied accessories Parts for installation and
connections (1 set)
Front panel case (1)
Design and specifications are subject to change without
notice.
SERVICE NOTES
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
optical pick-up bloc
TABLE OF CONTENTS
1. GENERAL
Location of controls................................................................. 3
Getting Started......................................................................... 3
Setting the clock ...................................................................... 3
CD Player ................................................................................ 3
Radio ....................................................................................... 4
Other Functions ....................................................................... 5
Connections ............................................................................. 6
2. DISASSEMBLY
2-1. Sub Panel (CD) Assy........................................................... 8
2-2. CD Mechanism Block ......................................................... 8
2-3. Main Board ......................................................................... 9
2-4. Heat Sink ............................................................................. 9
2-5. Chassis (T) Sub Assy ........................................................ 10
2-6. Lever Section.....................................................................10
2-7. Servo Board....................................................................... 11
2-8. Shaft Roller Assy .............................................................. 11
2-9. Floating Block Assy .......................................................... 12
2-10. Optical Pick-up Block ....................................................... 12
3. DIAGRAMS
3-1. IC Pin Descriptions ........................................................... 13
3-2. Block Diagram –CD Section–........................................... 19
3-3. Block Diagram –Tuner Section–....................................... 20
3-4. Block Diagram –Display Section–.................................... 21
3-5. Circuit Boards Location .................................................... 21
3-6. Printed Wiring Boards –CD Mechanism Section–............ 22
3-7. Schematic Diagram –CD Mechanism Section (1/2)– ....... 24
3-8. Schematic Diagram –CD Mechanism Section (2/2)– ....... 25
3-9. Schematic Diagram –Main Section (1/2)– ........................ 26
3-10. Schematic Diagram –Main Section (2/2)– ........................ 27
3-11. Printed Wiring Board –Main Section– ..............................28
3-12. Printed Wiring Board –Relay Section– ............................. 29
3-13. Schematic Diagram –Relay Section–................................ 30
3-14. Schematic Diagram –Display Section–............................. 31
3-15. Printed Wiring Board –Display Section– ..........................32
3-16. IC Block Diagrams............................................................ 33
semi-fixed resistor
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 pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
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.
4. EXPLODED VIEWS
4-1. Chassis Section ................................................................. 36
4-2. Front Panel Section ........................................................... 37
4-3. CD Mechanism Section (1) ............................................... 38
4-4. CD Mechanism Section (2) ............................................... 39
4-5. CD Mechanism Section (3) ............................................... 40
5. ELECTRICAL PARTS LIST ........................................ 41
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT .
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
2
SECTION 1
GENERAL
This section is extracted from
CDX-4000X/4005’s instruction manual.
3
45678
6
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. SUB PANEL (CD) ASSY
4 two claws
6 sub panel (CD) assy
2 PTT 2.6x6
2-2. CD MECHANISM BLOCK
5 CD mechanism block
2 PTT 2.6x6
3 claw
5 CNP800
1 PTT 2.6x6
7 bracket (CD)
6 PTT 2.6x6
3
4 CN301
1 PTT 2.6x
2-3. MAIN BOARD
8
7 heat sink
1 PTT 2.6x8
2 PTT 2.6x8
4 PTT 2.6x8
5 PTT 2.6x8
3 PTT 2.6x12
6 PTT 2.6x8
5 PTT 2.6x6
6 MAIN board
4 PTT 2.6x6
3 PTT 2.6x
2 PTT 2.6x8
1 PTT 2.6x8
2-4. HEAT SINK
9
2-5. CHASSIS (T) SUB ASSY
2 P 2x3
3 P 2x3
1 Unsolder the
lead wires.
2-6. LEVER SECTION
4 chassis (T) sub assy
black
red
white
4 claws
5 guide (disc)
6 lever (R)
3 tension spring (LR)
7 lever (L)
1 PS 2x3
2 DISC IN SW board
10
2-7. SERVO BOARD
Fig. 1
1 tension spring (RA)
2 arm (roller)
3 retaing ring (RA)
4 shaft retainer
5 shaft roller assy
retaing ring (RA)
arm
arm
washer
washer
shaft retainer
shaft retainer
7 PS 2x4
6 PS 2x4
3 Removal the solders.
4 P 2x3
5 loading motor assy
2-8. SHAFT ROLLER ASSY
• When installing, take note of the positions
arm (roller) and washers. (Fig. 1)
2 CN2
1 CN3
8 SERVO board
11
2-9. FLOATING BLOCK ASSY
7 compression spring (FL)
1 tension spring (KF1)
6 floating block assy
8 compression spring (FL)
4 Fit lever (D) in the
direction of the arrow.
5 Turn loading ring in the
direction of the arrow.
3 damper (T)
2-10. OPTICAL PICK-UP BLOCK
1 P 2x3
2 sled motor assy
2 damper (T)
3 optical pick-up block
12
SECTION 3
DIAGRAMS
3-1. IC PIN DESCRIPTIONS
• IC501 CXD2598Q (DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR) (SERVO BOARD)
Pin No. Pin Name I/O Pin Description
1 DVDD — Digital power supply pin
2 DVSS — Digital ground
3 SOUT O Servo brock serial data output (Not used.)
4 SOCK O Servo brock serial data read clock output (Not used.)
5 XOLT O Servo brock serial data latch output (Not used.)
6 SQSO O Sub Q 80 bit, PCM peak and level data output. CD TEXT data output
7 SQCK I Clock input from SQSO read output.
8 SCSY I Fixed at “L”.
9 SBSO O Serial output of sub-P to W. (Not used.)
10 EXCK I Clock input from SBSO read output. (Fixed at “L”)
11 XRST I System reset (“L”: Reset)
12 STSM I System mute input (Fixed at “L”)
13 DATA I Serial data input from CPU.
14 XLAT I Latch input from CPU. Latch serial data at the falling edge.
15 CLOK I Serial data transfer clock input from CPU.
16 SENS O SENS output for CPU.
17 SCLK I Clock input from SENS serial data read.
18 ATSK I/O Input/output for anti-shock.
19 WFCK O WFCK (Write Flame Clock) output (Not used.)
20 XUGF O XUGF output (Not used.)
21 XPCK O XPCK output (Not used.)
22 GFS O GFS output
23 C2PO O C2PO output (Not used.)
24 SCOR O “H” output at either detection, sub code sync S0 or S1.
25 C4M O 4.2336 MHz output (Not used.)
26 WDCK O Word clock input f=2Fs (Not used.)
27 COUT I/O Track number count signal input/output (Not used.)
28 MIRR I/O Mirror signal input/output (Not used.)
29 DVSS — Digital ground
30 DVDD — Digital power supply pin
31 DFCT I/O Diffect signal input/output (Not used.)
32 FOK I/O Focus OK signal output
33 PWM1 I External control input of spindle motor.
34 LOCK I/O Lock signal input/output
35 MDP O Servo control output of spindle motor.
36 SSTP I Disc most inner track detection signal input
37 FSTIO I/O 2/3 frequency division output of pins ih and ij. (Not used.)
38 SFDR O Sled drive output
39 SRDR O Sled drive output
40 TFDR O Tracking drive output
41 TRDR O Tracking drive output
42 FFDR O Focus drive output
43 FRDR O Focus drive output
44 DVDD — Digital power supply pin
45 DVSS — Digital ground
46 TEST I Test pin (Fixed at “L”.)
47 TES1 I Test pin (Fixed at “L”.)
48 XTSL I X’tal select input (“L”: 16.9344 MHz, “H”: 33.8688 MHz)
49 VC I Center voltage input
50 FE I Focus error signal input
51 SE I Sled error signal input
13
Pin No. Pin Name I/O Pin Description
52 TE I Tracking error signal input
53 CE I Center servo analog input
54 RFDC I RF signal input
55 ADIO O Test pin (Not used.)
56 AVSSO — Analog ground
57 IGEN I Constant current input from OP amplifier.
58 AVDDO — Analog ground
59 ASYO O EFM full-swing output (“L”: VSS, “H”: VDD)
60 ASYI I Asymmetry comparate voltage input
61 RFAC I EFM signal input
62 AVSS3 — Analog ground
63 CLTV I VCO control voltage input from master.
64 FILO O Filter output for master PLL (slave=digital PLL)
65 FILI I Filter input from master PLL.
66 PCO O Charge pump output for master PLL.
67 AVDD3 — Analog power supply pin
68 BIAS I Asymmetry circuit constant current input
69 VCTL I VCO2 control input from wideband EFM PLL. (Not used.)
70 V16M O VCO2 oscillator output for wideband EFM PLL. (Not used.)
71 VPCO O Charge pump output for wideband EFM PLL. (Not used.)
72 DVSS — Digital ground
73 MD2 I Digital out ON/OFF control input (“L”: OFF, “H”: ON)
74 DOUT O Digital out output
75 ASYE I Asymmetry circuit ON/OFF input (“L”: OFF, “H”: ON)
76 DVDD — Digital power supply pin
77 LRCK O D/A interface LR clock output (f=Fs)
78 LRCKI I D/A interface LR clock input
79 PCMD O D/A interface serial data output (2’s COMP, MSB fast)
80 PCMD I D/A interface serial data input (2’s COMP, MSB fast)
81 BCK O D/A interface bit clock output
82 BCKI I D/A interface bit clock input
83 EMPH O Emphasis ON/OFF signal output
84 EMPHI I Emphasis ON/OFF signal input (“H”: ON, “L”: OFF)
85 XVDD — Power supply for master clock.
86 XTAI I X’tal oscillator input from master clock (16.9344 MHz).
87 XTAO O X’tal oscillator output for master clock (16.9344 MHz).
88 XVSS — Ground pin for master clock.
89 AVDD1 — Analog power supply pin
90 AOUT1 O Lch analog output
91 AIN1 I Lch OPAMP input
92 LOUT1 O Lch LINE output
93 AVSS1 — Analog ground
94 AVSS2 — Analog ground
95 LOUT2 O Rch LINE output
96 AIN2 I Rch OPAMP input
97 AOUT2 O Rch analog output
98 AVDD2 — Analog power supply pin
99 RMUT O Rch “0” detect Flug (Not used.)
100 LMUT O Lch “0” detect Flug (Not used.)
14
• IC5 CXP84640-072Q (CD SYSTEM CONTROL) (SERVO BOARD)
Pin No. Pin Name I/O Pin Description
1 ITRPT — Not used in this set.
2, 3 ——Not used in this set.
4, 5 NCO — Not used in this set.
6 OPEN I Front panel open detection input
7 CLOSE O Front panel close control output
8 LINKOFF I Bus interface link input
9 NCO — Not used in this set.
10 D SW I Down switch input (SW4)
11 SSTP I Limit switch input (SW3)
12, 13 NCO — Not used in this set.
14, 15 ——Not used in this set.
16 EMPH O O De-emphasis ON/OFF control output
17 CDMON O CD mechanism deck power control output
18 CD ON O CD power control output
19 A MUT O System attenuate control output
20 LD ON O Laser power ON/OFF control output
21 CD RST O CD system reset output
22 HOLD O Hold switch output
23 AGC CONT O AGC control output
24 ——Not used in this set.
25 PH3 I Not used in this set.
26 TSTIN0 I Not used in this set.
27 TSTIN1 I Not used in this set.
28 TST.CLV I Not used in this set.
29 NCO — Not used in this set.
30 RESET I System reset input (“L”=Reset)
31 X IN I X’tal oscillator input from system clock. (10 MHz)
32 X OUT O X’tal oscillator output for system clock. (10 MHz)
33 GND — Analog ground
34 XT OUT O Not used in this set.
35 XT IN I Not used in this set.
36 AVSS — A/D converter ground
37 AVREF I A/D converter reference voltage input
38 TEP L I Not used in this set.
39 TEP H I Not used in this set.
40 SLED– I Sled drive input
41 PH2 I Not used in this set.
42 SEK/SMET I Fixed at “H” in this set.
43 GFS/MNT2 SEL I Fixed at “H” in this set.
44 SC-JIG ON/OFF I Fixed at “H” in this set.
45 SCLK O CD-TEXT data read clock output
46 LOCK I/O Lock signal input/output
47 ——Not used in this set.
48 SCK2 O Sub Q read clock output
49 SI2 I Sub Q 80 bit, PCM peak and level data 16 bit input.
50 ——Not used in this set.
51 BUS CLK I/O Bus system serial clock input/output
52 BUS SI I Bus system serial interface input
53 BUS SO O Bus system serial interface output
54 F OK I Focus OK signal input
55 GFS I GFS signal detection input
56 TEST MODE I Fixed at “H” in this set.
15
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