Sony CDX-1200, CDX-3600 Service Manual

CDX-1200/3600
SERVICE MANUAL
Photo: CDX-3600
• The tuner and CD sections have no adjustments.
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS (US, Canadian model)
POWER OUTPUT AND 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.
US Model
Canadian Model
CDX-1200
E Model
CDX-3600
Model Name Using Similar Mechanism CDX-1150, CDX-3700 CD Drive Mechanism Type MG-310-153
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
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 –
MICROFILM
1
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.

SERVICE NOTE

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.
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
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 objecti v e 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.
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 PAR TS WHOSE P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQUES 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.
SECTION 1

GENERAL

This section is extracted from CDX-3600’s instruction manual.
3
456
SECTION 2

DISASSEMBLY

Note : Follow the disassembly procedure in the numerical order given.
2-1. FRONT PANEL ASSY
3
claws
5
connector
2-2. KEY BOARD
5
6
front panel assy
button (source)
4
claw
1
P 2x8
2
claws
1
PTT 2.6x8
2
P 2x8
3
KEY board
6
button (+.–)
4
button (6 key)
8
button (AMS)
7
button (EJECT)
7
2-3. MAIN SUB ASSY
7
ground point
1
PTT 2.6x8
3
bracket (front)
PTT 2.6x6
4
PTT 2.6x8
6
PTT 2.6x6
ground point
5
PTT 2.6x8
8
main sub assy
9
sheet (insulating)
2
PTT 2.6x8
2-4. CD MECHANISM BLOCK
3
claw
5
CNJ102
7
CD mechanism block
2
claw
1
PTT 2.6x8
6
CN600
4
CNJ103
8
2-5. HEAT SINK
4
heat sink
2
PTT 2.6x10
3
PTT 2.6x10
2-6. CHASSIS (R) BLOCK ASSY
1
3
tension spring (FL)
PTT 2.6x10
4
tension spring (FL)
2
chassis (R) block assy
1
screws (P 2x2.5)
9
2-7. FLOATING BLOCK ASSY
5
tension spring (angle)
9
6
8
7
4
tension spring (SPM)
0
floating block assy
1
tension spring (lever D)
2
2-8. ROLLER ARM ASSY
Note : When replacing the spring roller, replace the rollers at the right and left ends at the same time.
1
spring (roller)
6
5
7
roller arm assy
4
2
spring (roller)
3
lever (LE.L)
washer (M)
10
3
2-9. OPTICAL PICK-UP BLOCK
1
gear (worm wheel)
2
shaft (sled guide)
claw
3
optical pick-up block
11
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