Sony CDX-1200 - Fm/am Compact Disc Player User manual

11
SERVICE MANUAL
US Model
Canadian Model
CDX-1200
E Model
CDX-3600
CDX-1200/3600
FM/AM COMPACT DISC PLAYER
• The tuner and CD sections have no adjustments.
Photo: CDX-3600
AUDIO POWER SPECIFICATIONS (US, Canadian model)
POWER OUTPUTAND TOTAL HARMONIC DISTORTION
18 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
system
Signal-to-noise ratio 90 dB
Frequency response 10 – 20,000 Hz
Wow and flutter Below measurable limit
Laser Diode Properties (US, Canadian model)
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.
Tuner section
FM
Tuning range
US, Canadian model: 87.5 – 107.9 MHz
E model: 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)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz
Usable sensitivity 12 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),
0.5% (mono)
Separation 35 dB at 1 kHz
Frequency response 30 – 15,000 Hz
SPECIFICATIONS
AM
Tuning range
US, Canadian model: 530 – 1,710 kHz
E model: 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 45 W ×4 (at 4 ohms)
– Continued on next page –
Model Name Using Similar Mechanism CDX-1150, CDX-3700
CD Drive Mechanism Type MG-310-153
Ver 1.1 2001. 05
Sony Corporation
e Vehicle Company
Shinagawa Tec Service Manual Production Group
9-870-052-12
2001E0400-1
© 2001. 5

2
TABLE OF CONTENTS
1. GENERAL
Location of controls ................................................................ 3
Getting Started ........................................................................ 3
Setting the clock ..................................................................... 3
CD Player................................................................................ 3
Radio ....................................................................................... 3
Other Functions ...................................................................... 4
Connections ............................................................................ 5
2. DISASSEMBLY
2-1. Front Panel Assy ................................................................. 7
2-2. Key Board ........................................................................... 7
2-3. Main Sub Assy .................................................................... 8
2-4. CD Mechanism Block ......................................................... 8
2-5. Heat Sink............................................................................. 9
2-6. Chassis (R) Block Assy....................................................... 9
2-7. Floating Block Assy .......................................................... 10
2-8. Roller Arm Assy ................................................................ 10
2-9. Optical Pick-up Block ....................................................... 11
3. DIAGRAMS
3-1. IC Pin Description............................................................. 12
3-2. Block Diagram –Main Section–........................................ 14
3-3. Block Diagram –Display Section–.................................... 15
3-4. Printed Wiring Boards –Main Section– ............................ 16
3-5. Schematic Diagram –Main Section (1/3)–........................18
3-6. Schematic Diagram –Main Section (2/3)–........................19
3-7. Schematic Diagram –Main Section (3/3)–........................20
3-8. Schematic Diagram –Display Section–............................. 21
3-9. Printed Wiring Board –Display Section–.......................... 22
4. EXPLODED VIEWS
4-1. Chassis Section ................................................................. 25
4-2. Front Panel Section ........................................................... 26
4-3. CD Mechanism Section (1)............................................... 27
4-4. CD Mechanism Section (2)............................................... 28
5. ELECTRICAL PARTS LIST ........................................ 29
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.
NOTESONHANDLINGTHEOPTICALPICK-UPBLOCKOR
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, observe
from more than 30 cm away from the objective lens.
General
Outputs Audio output
Power amplifier control
lead
Power antenna relay control
lead
Tone controls Bass ±8 dB at 100 Hz
Treble ±8 dB at 10 kHz
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 178 ×50 ×178 mm
(7 1/8 ×2 ×7 1/8 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)
Design and specifications are subject to change without
notice.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMESSCHÉMATIQUESET LA LISTE DESPIÈCES 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.
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.

3
SECTION 1
GENERAL This section is extracted from
CDX-3600’s instruction manual.

4

5

6

7
SECTION 2
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. FRONT PANEL ASSY
2-2. KEY BOARD
1 PTT 2.6x8
2 claws
3 claws
4 claw
5 connector
6 front panel assy
2 P 2x8
1 P 2x8
4 button (6 key)
8 button (AMS)
7 button (EJECT)
6 button (+.–)
5 button (source)
3 KEY board

8
1 PTT 2.6x8
4 CNJ103
5 CNJ102
6 CN600
7 CD mechanism block
3 claw
2 claw
1 PTT 2.6x8
4 PTT 2.6x8
5 PTT 2.6x8
6 PTT 2.6x6
ground point
7 PTT 2.6x6
ground point
2 PTT 2.6x8
3 bracket (front)
8 main sub assy
9 sheet (insulating)
2-4. CD MECHANISM BLOCK
2-3. MAIN SUB ASSY

9
3 tension spring (FL)
1 screws (P 2x2.5)
2 chassis (R) block assy
4 tension spring (FL)
1 PTT 2.6x10
2 PTT 2.6x10
3 PTT 2.6x10
4 heat sink
2-6. CHASSIS (R) BLOCK ASSY
2-5. HEAT SINK

10
1 spring (roller)
2 spring (roller)
7 roller arm assy
3
4
5
6
6
7
8
9
0
floating block assy
4 tension spring (SPM)
5 tension spring (angle)
2 washer (M)
3 lever (LE.L)
1 tension spring (lever D)
2-8. ROLLER ARM ASSY
Note : When replacing the spring roller, replace the rollers at the right and left ends at the same time.
2-7. FLOATING BLOCK ASSY

11
1 gear (worm wheel)
2 shaft (sled guide)
3 optical pick-up block
claw
2-9. OPTICAL PICK-UP BLOCK

12
3-1. IC PIN DESCRIPTION
• IC600 µPD78005GC-133-8BT (SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 MCLK O Microcomputer command clock signal output (data latch on rising)
2 MDATA O Microcomputer command data signal output
3 MLD O Microcomputer command load signal output
4 AVSS — Analog ground
5 DSTSEL0 I Destination select setting input (Connect to ground in this set.)
6 DSTSEL1 I 9k/10k select setting input (“L”: 9 kHz step, “H”: 10 kHz step)
7 AVREF1 I Analog reference voltage input
8 SUBQ I Sub code Q data input
9 — — Not used.
10 SQCK O Clock output for sub code Q register.
11 LCDCE O LCD driver serial chip enable output
12 LCDSO O LCD driver serial data output
13 LCDCKO O LCD driver serial clock output
14 ILLON O Illumination power control output
15 UNICKI I SONY-BUS serial interface clock input
16 UNISI I SONY-BUS serial interface data input
17 UNISO O SONY-BUS serial interface data output
18 UNICKO O SONY-BUS serial interface clock output
19 SBCK O Clock output for error correction result read-in.
20 BUSON O BUS ON control output
21 SYS RST O System reset control output
22 RST O DSP reset signal output (“L” active)
23 FOUT O Loading motor control output (Forward direction)
24 ROUT O Loading motor control output (Reverse direction)
25 CD-ON O CD power control output
26 PW-ON O System power control output
27 LIMSW I LIMIT switch input (“L” active)
28 FLAG I Data input for error correction result read-in.
29 SENS I SENS signal input
30 FLOCK I Focus servo pulling signal input (“L” active)
31 TLOCK I Tracking servo pulling signal input (“L” active)
32 STATE I Status signal input
33 VSS1 — Ground
34 VIB. I/O Vibration lens input/output
35 CDM-ON O CD machanism power control output
36 AMPMUT O Power amplifier mute control output
37 A-MUT O Audio mute control output
38 AD-ON O Power control output for A/D conversion.
39 PW-SEL O Not used in this set.
40 NOSESW I Front panel attachment detection input
41 TEST I Test mode direct setting input
42 TELMUT O Not used in this set.
43 ACCIN I Accessory power supply voltage detection input
44 VOLCE O Electric volume serial chip enable output
45 VOLSO O Electric volume serial data output
46 BEEP O Beep output
47 TUNON O Tuner ON output
48 FMON O FM ON output
49 PLLCE O PLL chip enable output
50 VOLCKO O Electric volume serial clock output
51 PLLSO O PLL data output
SECTION 3
DIAGRAMS

13 13
Pin No. Pin Name I/O Pin Description
52 PLLCKO O PLL clock output
53 PLLSI I PLL data input
54 AMON O AM ON output
55 — — Not used in this set.
56 FMST I/O ST-IND indication input/Forced Monaural output
57 SW4 I Switch 4 input (“L” active)
58 SW3 I Switch 3 input (“L” active)
59 SW1 I Switch 1 input (“L” active)
60 RESET I System reset input
61 SIRCS I Remote commander input (Not used in this set)
62 KEYACK I Key input acknowledge
63 BUIN I Backup power supply detection input
64 BLKCK I Sub code block clock signal input (interruption)
65 SW2 I Switch 2 input (“L” active)
66 FCLK I Latch input for error correction result read-in. (interruption)
67 VSS0 — Ground
68 VDD1 — Power supply pin (+5 V)
69 X2 — Main system clock output (5 MHz)
70 X1 — Main system clock input (5 MHz)
71 VPP — Internal connection
72 XT2 — Sub system clock output (32.768 kHz)
73 XT1 — Sub system clock input (32.768 kHz)
74 VDD0 — Power supply pin (+5 V)
75 AVREF0 — Analog reference voltage input
76 KEYIN0 I Key input 0
77 KEYIN1 I Key input 1
78 S-METER I AM/FM S-meter voltage detection input
79 SD-IN I Signal detector input
80 LCDINH O LCD blank indication control output

14 14
3-2. BLOCK DIAGRAM — MAIN SECTION —
CDX-1200/3600
12
22 4
44 731 9
2
27 23
22
19
16
18
12
32 75
33
34
37 58
35
39 59
18
17
15
14
28 13
12
11
10
9
8
26
24
21
22 7
65
63
56
15
17
13
24
25
38
36
40
31
30
28
4
5
26
PDA ARF ARF
FE
TE
RFENV
TRCRS
VDET
BDO
RF-DET
OFT
LDON
TBAL
FBAL
FOD
27 TRD
KICK
TVD
TRV
ECM
L OUT
R OUT
X1
VREF
X2
RST 46
BEEP
37
A MUT
36
AMP MUT 26
PW ON
44
CE 45
SO 50
CKO
41
TEST
43
ACC IN
63
BU IN
LO/DX
AM CP
VT
FM CP
FM IN
FM IN
OSC OUT
IFC R
IFC IN
CE
BATT
BATT
R-CH
P ON+B
BATT
BATT
R-CH
R-CH
DIN
CLK
DOUT
XTOUT
XTIN
FM+B
AM+B
+B (FM/AM)
MONO/ST
SD (AM/FM)
S-METER
49
CE 51
SO 52
CKO 53
3
4
5
6
1
24
13
11
2
16
15
18
19
20
10
SI
78
S-METER 79
SD IN 56
FM ST
48
FM ON
COM8V
54
AM ON
47
TU ON
STAT
SUBQ
SQCK
BLKCK
TLOCK
FLOCK
SENSE
RST
STATE
SUBQ
SQCK
BLKCK
TLOCK
FLOCK
SENS
MLD
MDATA
MCLK
FLAG
FCLK
SBCK
VIB
FOUT
ROUT
LIMSW
SW4
SW3
SW2
X2 TU8V
X1
XT2
XT1
CDM ON
CDON
MLD
MDATA
MCLK
FLAG
FCLK
SBCK
FE
TE
ENV
CROSS
VDET
BDO
NRFDET
OFTR
LDON
TBAL
FBAL
PDB
PDE
PDF
LPD
LD
VREF
15 26
16
17
18 23
6
3
10
928
1
22
32
8
10
64
31
30
29
3
2
1
28
66
19
23
34
69
70
65
58
57
27
24
FO
DRIVE
TR
DRIVE
SLED
MOTOR
DRIVE
SP
MOTOR
DRIVE
LD
DRIVE
Q101
LOAD
MOTOR
DRIVE
14
13
12
11
SW2SW3SW4SW5
72
73
35
25
M102
(SLED)
M101
(SPINDLE)
M103
(LOADING)
NB
NA
E
F
LPD
LD
F+
F-
T+
T-
25 ECS
M
ACC/BATT
CHECK
Q507
BATT
CHECK
Q510
18 17 16
20
21
11
36
37
38
4
15
12
17
5
6
13
20
18
19
21
9
10
8
AMDET 1
AM
2
FM
L OUT
R OUT
VCO (FM/AM)
XTAL IN
IFC-O/SEEK/RE
LO/DX
VT (FM/AM)
POWER
CONTROL
Q702
POWER
CONTROL
Q703
POWER
CONTROL
Q701
POWER
CONTROL
Q704,705
POWER
CONTROL
Q502(2/2),505
POWER
CONTROL
Q501,502(1/2)
MUTE
CONTROL
Q550,551
SHUTDOWN
MUTE
Q516
CE DI CLK
VOL/
TONE FADER
9
7
5
3
5V REG
Q509,517
8V REG
Q512,513
5V REG
Q514,515
8V REG
Q511
BU5V
COM8V
CD8V
CD5V
04 J701
(ANTENNA)
BATT
BATT
BATT
PON+B
X600
5.0MHz
X700
10.25MHz
X101
16.93MHz
X601
32.768kHz
VOLPLL
LR
LF
ELECTRIC VOLUME
IC400
R-CH
SYSTEM CONTROL
IC600 (1/2)
OPTICAL
PICK-UP RF AMP
IC102
DIGITAL SIGNAL/
SERVO PROCESSOR
IC101
TUNER UNIT
TU700
PLL
IC700
Q402
(1/2) Q402
(2/2)
Q401
(1/2)
MUTE
POWER AMP
IC500
STBY
PON+B
BATT F901
R-CH
CNP500
CNP400
2
-2
-1 AUDIO OUT
REAR
1
9
3
11
4
12
16
6
15
5
7
10 REAR L(–)
R
REAR L(+)
REAR R(–)
REAR R(+)
FRONT R(–)
FRONT R(+)
BATT
ANT REM
AMP REM
TEST
ACC
FRONT L(–)
FRONT L(+)
L
R-CH
BU5V TU5V
MOTOR DRIVE
IC103
(LIMIT) DISC
IN1
( )
DISC
IN2
( )
CHUCKING
DET
( )
• Signal path
: FM
: AM
: CD
M
M

15 15
CDX-1200/3600
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
For schematic diagrams
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
• % : indicates tolerance.
•f: internal component.
•C: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
•U: B+ Line.
• Powervoltageisdc14.4Vandfedwithregulateddcpower
supply from ACC and BATT cords.
• Voltages are takenwithaVOM(Inputimpedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: FM
f: AM
J: CD
For printed wiring boards
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•a: Through hole.
•f: internal component.
•b: Pattern from the side which enables seeing.
(The other layer’s patterns are not indicated.)
Caution:
Pattern face side: Parts onthepatternface sideseen fromthe
(Side B) pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A) parts face are indicated.
The components identified by
mark 0or dotted line with mark
0are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0sont critiques pour la
sécurité.
Neles remplacer que par une piéce
portant le numéro spécifié.
14
60
13
12
11
80
62
38
6
75
76
77
ILL ON
RESET
CKO
SO
KEYIN0
KEYIN1
AVREFO
KEYACK
AD ON
DSTSEL1
CE
INH
57 60 62 61
1 2
RESET
KEY
ACTIVE
Q601
LIQUID CRYSTAL
DISPLAY PANEL
LCD800
INH
CE
DI
CLK
LCD
10V REG
Q503,504
5V
REG
D851
04
BU5V
LSW801-819
LCD DRIVE
IC800
LSW800
(RESET)
LSW801-819 IC601
VDD
BATT
SYSTEM CONTROL
IC600 (2/2)
BU5V
PL802
PL801 LCD
BACK
LIGHT
FM200k
AM10k
FM50k
AM9k
S602
FREQUENCY
SELECT
( )
( )
(3600)

16 16
CDX-1200/3600
3-4. PRINTED WIRING BOARDS — MAIN SECTION —
SW3
(DISC IN 2)
SW2
(DISC IN 1)
SW4
CHUCKING
DET
( )
–
+
1
2
3
4
67
Ref. No. Location
(D501) B-6
D502 F-11
D503 B-13
D504 B-12
D505 B-11
D506 D-13
D507 D-13
D508 E-11
D509 F-11
D510 E-12
D511 B-4
D512 E-10
D513 B-8
D514 D-8
D516 B-12
D517 B-12
D518 D-13
D519 C-3
D520 D-9
D521 D-9
D522 D-9
D523 D-9
D524 C-9
D525 C-9
D526 C-9
D527 C-9
D550 C-4
D551 C-4
D602 J-12
IC101 G-8
IC102 H-5
IC103 J-4
IC400 D-5
(IC500) B-6
IC600 H-11
IC601 I-9
IC700 E-3
Q101 F-4
Q401 B-3
Q402 C-5
Q403 C-6
Q501 D-10
Q502 D-12
Q503 F-13
Q504 G-12
Q505 D-11
Q507 D-12
Q509 E-11
Q510 E-12
Q511 E-10
Q512 C-8
(Q513) B-7
Q514 C-8
Q515 D-7
Q516 B-3
Q517 F-11
Q550 B-3
Q551 B-4
Q601 J-12
Q701 G-2
Q702 G-2
Q703 J-7
Q704 F-2
Q705 F-3
• Semiconductor
Location
( ) : SIDE B

17 17
BLK
YEL
RED
BLU
BLU/WHT
GRY/BLK
VIO
VIO/BLK
GRN
GRN/BLK
WHT
WHT/BLK
GRY
AMP REM
FRONT R-CH
REAR R-CH
REAR L-CH
FRONT L-CH
+
-
+
-
+
-
+
-
(LIMIT)
-+
-
+
CDX-1200/3600
(Page 22)

18 18
CDX-1200/3600
3-5. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 23 for IC Block Diagrams.
(Page 19)
(Page 20)
Note:
• Voltage is dc with respect to ground under no-signal
condition.
no mark : CD PLAY
• Waveforms (MODE:PLAY)
3
1
2
Approx. 600mVp-p
IC102 wd (FE)
0V
IC102 9(ARF)
1.3Vp-p
Approx. 200mVp-p
IC102 ws (TE)
0V

19 19
0.33
0.5% 2.2k
CDX-1200/3600
3-6. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 24 for IC Block Diagrams.
(Page 20)
(Page 18)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM

20 20
0.1
CDX-1200/3600
3-7. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 24 for IC Block Diagrams.
(Page 18)
(Page 19)
(Page 21)
Note:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
():AM
< > : CD PLAY