Sony CDX1000RF User Manual 2

CDX-1000RF

SERVICE MANUAL

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION
13 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.

US Model

Model Name Using Similar Mechanism CDX-2500R
CD Drive Mechanism Type MG-363X-121
Optical Pick-up Name KSS-521A

Other Specifications
CD player section

System Compact disc digital audio

system
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Laser Diode Properties

Material GaAs+GaAlAs
Wavelength 785 – 815 nm (Typ. 800 nm)
Emission Duration Continuous
Laser output power Less than 0.5 mW*

* This output is the value measured at a distance

of 0.7 mm from the objective lens surface on the
Optical Pick-up Block.

General

Outputs Line outputs
Power requirements 12 V DC car battery

(negative ground)

Current drain 2A (at disc loading)
Dimensions Approx. 178 × 50 × 173 mm

(7 1/8 × 2 × 6 7/8 in.)
(w/h/d)

Mounting dimensions Approx. 182 × 53 × 159 mm

(7 1/4 × 2 1/8 × 6 3/8 in.)

(w/h/d)
Mass Approx. 1.1 kg (2 lb. 7 oz.)
Supplied accessories Parts for installation and

connections (1 set)

Design and specifications are subject to change without
notice.

COMPACT DISC PLAYER

1

SERVICE NOTE

TABLE OF CONTENTS

CAUTION

Use of controls or adjustments or performance of proce­dures other than those specified herein may result in haz­ardous 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 pick­up block. Therefore, when checking the laser diode emission, ob­serve 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 pick­up 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 pick­up flexible board with a new one.

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.

1. GENERAL

Location of controls................................................................. 3

Getting Started......................................................................... 3

Operation ................................................................................. 3

Connections ............................................................................. 4

2. DISASSEMBLY

2-1. Panel Assy, Front ................................................................. 5

2-2. CD Mechanism Block ......................................................... 5

2-3. Main Board ......................................................................... 6

2-4. Chassis (Rear) .....................................................................6

2-5. Chassis (T) Sub Assy .......................................................... 7

2-6. Lever Assy ........................................................................... 7

2-7. Servo Board......................................................................... 8

2-8. Roller Assy.......................................................................... 8

2-9. Chassis (OP) (O/S) Assy ..................................................... 9

2-10. Optical Pick-up Block ......................................................... 9

3. ELECTRICAL ADJUSTMENTS

CD Section ............................................................................10

4. DIAGRAMS

4-1. IC Pin Description............................................................. 11

4-2. Block Diagram –CD Section (1/2)– .................................. 12

4-3. Block Diagram –CD Section (2/2)– .................................. 13

4-4. Block Diagram –Display, Power Supply Section– ............ 14

4-5. Circuit Boards Location .................................................... 15

4-6. Printed Wiring Boards –CD Mechanism Section–............ 16

4-7. Schematic Diagram –CD Mechanism Section– ................ 17

4-8. Printed Wiring Board –Main Section– ..............................18

4-9. Schematic Diagram –Main Section (1/2)– ........................ 19

4-10. Schematic Diagram –Main Section (2/2)– ........................ 20

4-11. Schematic Diagram –Display Section–............................. 21

4-12. Printed Wiring Board –Display Section– ..........................22

5. EXPLODED VIEWS

5-1. Chassis Section ................................................................. 26

5-2. Front Panel Section ........................................................... 27

5-3. CD Mechanism Section (1) ............................................... 28

5-4. CD Mechanism Section (2) ............................................... 29

5-5. CD Mechanism Section (3) ............................................... 30

6. ELECTRICAL PARTS LIST ........................................ 31

2

SECTION 1

GENERAL

This section is extracted
from instruction manual.

3

4

6

SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.

2-1. PANEL ASSY, FRONT

3 claw

2 claws

1 claws

2-2. CD MECHANISM BLOCK

5 CD mechanism block

5 panel assy, front

2 PTT 2.6x6

8 bracket (M/D)

4 CNP801

7 PTT 2.6x6

3 PTT 2.6x6

6 PTT 2.6x

1 PTT 2.6x6

4 CNP701

5

6

6

2-3. MAIN BOARD

6 MAIN board

2-4. CHASSIS (REAR)

5 ground point screw
(PTT 2.6x6)

4 ground point screws
(PTT 2.6x6)

3 PTT 2.6x

2 PTT 2.6x6

1 PTT 2.6x6

4 chassis (rear)

3 PTT 2.6x

2 PTT 2.6x6

1 PTT 2.6x6

6

2-5. CHASSIS (T) SUB ASSY

4 P 2x3

3 P 2x3

1 Unsolder the

lead wires.

2-6. LEVER ASSY

5 chassis (T) sub assy

2 P 2x3

red

white

black

4 claws

5 guide (disc)

6 lever (R) assy

3 tension spring (LR)

7 lever (L) assy

1 PS 2x4

2 DISC IN SW board

7

2-7. SERVO BOARD

8 PS 2x4

7 PS 2x4

3 Removal the solders.

1 CN3

5 P 2x3

6 loading motor assy

2 CN2

9 SERVO board

4 Removal the solders.

2-8. ROLLER ASSY

• When installing, take note of the positions

arm (roller) and washers. (Fig. 1)

4 PS 2x3

5 LOAD SW board

washer

ring (roller), retaining

arm

3 roller assy

2 arm (roller)

spacer, insulating

arm

Fig. 1

1 tension spring (RA)

8

2-9. CHASSIS (OP) (O/S) ASSY

8 compression spring (FL)

1 tension spring (KF1)

7 chassis (OP) (O/S) assy

9 compression spring (FL)

2 tension spring (KR1)

5 Fit lever (D) in the

direction of the arrow.

6 Turn loading ring in the
direction of the arrow.

4 damper (T)

2-10. OPTICAL PICK-UP BLOCK

1 P 2x3

2 sled motor assy

3 damper (T)

3 optical pick-up block

9

SECTION 3

ELECTRICAL ADJUSTMENTS

CD SECTION

Note:

1. CD Block basically constructed to operate without adjustment.
Therefore, check each item in order given.

2. Use YEDS-18 disc (3-702-101-01) unless otherwise indica ted.

3. Use the oscilloscope with more than 10 MΩ impedance.

4. Clean an objective lens by an applicator with neutral detergent
when the signal level is low than specif ied value with the f ollowing
checks.

Focus Bias Adjustment

Setting: This adjustment is performed with the set placed

horizontally.

oscilloscope

SERVO board

TP (RF)

TP (RF. GND)

Procedure:

1. Connect an oscilloscope between TP (RF) and TP (RF. GND)
on the SERVO board.

2. Connect the power supply.

3. Push the RESET button (S900) on the MAIN board.

4. Insert the disc (YEDS-18) and playback.

5. Adjust RV1 so that the oscilloscope w aveform is clear and check
RF signal level is correct or not.

Note: Clear RF signal waveform means that the sharp “ ” can be

clearly distinguished at the center of the waveform.

+
–

Focus Gain Adjustment (Coarse adjustment)

This adjustment is not required unless the following parts are re placed:

• Optical pick-up

• RV4

Procedure:

1. Set RV4 to the standard position. (mechanical center)

2. Check whether operation noise (while noise type) caused by
the 2-axis device (lens section of the optical pick-up) is
abnormally loud.
If the operation noise is too loud, turn RV4 slightly counter­clockwise.

• If the gain is too low:
Focus does not function and no music is selected.

• If the gain is too high:
Noise caused by scratches and dust is heard and the operation
becomes unstable.

Adjustment Location: servo board

Adjustment Location: servo board (component side)

FOCUS GAIN ADJ

IC3

CN2

RV4

RF signal waveform

VOLT/DIV: 200 mV
TIME/DIV: 500 nS

level: 1.0 – 1.5 Vp-p

• When observing the ey e pattern, set the oscilloscope to AC range
and raise the vertical sensitivity so that it may be easily seen.

Adjustment Location: servo board

CN1

IC1

TP

(RF. GND)

IC2

TP

(RF)

CN3

RV1

FOCUS BIAS ADJ

10

SECTION 4

DIAGRAMS

4-1. IC PIN DESCRIPTION

• IC801 µPD17705GC-547-3B9 (SYSTEM CONTROL)

Pin No. Pin Name I/O Pin Description

1 NC — Not used. (Connect to ground in this set.)
2 IN_SW I Disc insertion detection input L: IN_SW
3 D_SW I DOWN switch detection input L: D_SW
4 SELF_SW I Disc self store detection input L: SELF_SW
5 L_SW I Sled limit switch detection input L: L_SW
6 LM_EJ O Loading motor control output (Eject direction)
7 LM_LD O Loading motor control output (Loading direction)
8 RY_ON O Relay control output

9, 10 NC — Not used. (Open)

11 BAND_SW I BAND select input 0: US

12 – 20 NC — Not used. (Open)

21 GND3 — Ground
22 NC — Not used. (Open)
23 ADKI2 I A/D key input 2
24 ADKI1 I A/D key input 1
25 ROTCOM I Rotary commander shift key input
26 NC — Not used. (Open)
27 TEST_SW I Test mode initial setting detection input L: TEST_SW

28, 29 NC — Not used. (Open)

30 VDD2 — Power supply pin (+5 V)
31 FMIN I PLL local oscillator frequency input
32 NC — Not used. (Open)
33 GND2 — Ground
34 NC — Not used. (Open)
35 EO1 O PLL error 1 output
36 TEST0 — Connect to GND line.

37 – 40 NC — Not used. (Open)

41 ACC_IN I Accessory power detection input L: ACC_IN
42 SCOR I SCOR signal detection input
43 MUTE O Mute control output
44 LEVEL D O Level control output
45 NC — Not used. (Open)
46 PH2 I Connect to +5 V line.
47 LEVEL 1 O Volume control output

48, 49 NC O Not used. (Open)

50 EMPH_O O Emphasis control output
51 PW_ON O System power control output
52 LM_ON O Loading motor power control output
53 CD_ON O CD power control output
54 ILLON O Illumination power control output

55 – 57 NC — Not used. (Open)

58 LCD_CE O LCD chip enable output
59 EZ_SEL I Rotary commander shift key input L: EZ_SEL
60 SENS I CD SENS signal detection input
61 FOK I Focus OK signal detection input
62 LD_ON O Laser ON/OFF control output L: LD_ON

63, 64 NC — Not used. (Open)

65 LCD_CLK O LCD serial clock output
66 LCD_DAT O LCD serial data output
67 LCD_INH O LCD inhibition output L: LCD_INH
68 SQCK0 O Sub Q read clock output

Pin No. Pin Name I/O Pin Description

69 CD_RST O Reset output to CD signal processor IC.
70 SQ_SI I Sub Q data input
71 CD_SO0 O CD signal serial data output
72 CD_LAT O CD signal processing data latch output
73 CD_CK0 O CD signal processing serial clock output
74 NC — Not used. (Open)
75 GND1 — Ground
76 XOUT O ceramic oscillator output (4.5 MHz)
77 XIN I ceramic oscillator input (4.5 MHz)
78 BU_IN I Backup power detection input
79 VDD1 — Power supply pin (+5 V)
80 RESET I Reset input L: RESET

11 11

CDX-1000RF

4-2. BLOCK DIAGRAM — CD SECTION (1/2) —

OPTICAL PICK-UP

KSS-521A

I-V

AMP

PD

LD

TRACKING

FOCUS

M902

(SLED)

LD POWER

CONTROL

Q1, 2

M

RF AMP, SERVO CONTROL

PD1 RF

35 31

PD2

36

E

39

F

38

FEO

1

FEI

2

RV4

FOCUS

GAIN

PD

34

LD

33

FOCUS/TRACKING COIL DRIVE,

CH2+

16

CH2–

15

CH1+

18

CH1–

17

CH3+

13

CH3–

14

IC2

FE BIAS

MOTOR DRIVE

IC3

LEVEL
SHIFT

LEVEL
SHIFT

LEVEL
SHIFT

RF 0

CLK

19

XLT

20

DATA

21

SENS

24

FOK

25

C. OUT

23

37

RV1

FOCUS

BIAS

XRST

22 50

SL O

16

FE O

6

TA O

13

CH2 IN

22

CH1 IN

19

CH3 IN

24

DIGITAL SIGNAL PROCESSOR

14

59
57
56
54

1

55

3

CLKO
XLTO
DATO
SEIN
FOK
CNIN

XRST

MDP

IC1

PCMD

BCK

LRCK

XTAI

SENS
SQSO
SQCK
DATA
XLAT
CLOK
SCOR

D/A CONVERTER

IC701

CD

DIN

21

22
20
34

X701

16.9344MHz

49
46
47
51
52
53
43

5

BCKIN

6

LRCIN

4

CLKO

19

XTI

1

XTO

20

RSTB

15

VOUTL

VOUTR

MC/DM1

SW3

(LIMIT)

SW1

(DISC IN)

SW4

(DOWN)

SW2

(SELF)

12

9

17

CD L-CH

CD R-CH

SYSTEM CONTROL

IC801 (1/3)

50

EMPH_O

69

CD_RST

60

SENS

70

SQ_SI

68

SQCK0

71

CD_SO0

72

CD_LAT

73

CD_CK0

42

SCOR

5

L_SW

2

IN_SW

3

D_SW

4

SELF_SW

SECTION

A

(Page 13)

(2/2)

CTL2

3

5

6

7

CH4 IN

FWD

REV

61
62

6

7

FOK
LD_ON

LM_EJ

LM_LD

M901

(SPINDLE)

M903

(LOADING)

04

CH4+

M

M

CH5+

12

10

LEVEL
SHIFT

LEVEL
SHIFT

• Signal path
: CD

• R-ch : same as L-ch.

12 12