Sony MDC-3600 Service manual
MDC-3600
SERVICE MANUAL
• The tuner and CD sections have no adjustments.
E Model
Model Name Using Similar Mechanism CDX-3600
CD Drive Mechanism Type MG-310-153
FM/AM 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 pick-up
block. Therefore, when checking the laser diode emission, observe
from more than 30 cm away from the objective lens.
Laser Diode Properties
• 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 surfase on the Optical Pick-up Block.
1. DISASSEMBLY
1-1. Front Panel Assy ................................................................. 3
1-2. Key Board ........................................................................... 3
1-3. Main Sub Assy .................................................................... 4
1-4. CD Mechanism Block .........................................................4
1-5. Heat Sink.............................................................................5
1-6. Chassis (R) Block Assy....................................................... 5
1-7. Floating Block Assy............................................................ 6
1-8. Roller Arm Assy.................................................................. 6
1-9. Optical Pick-up Block ......................................................... 7
2. DIAGRAMS
2-1. IC Pin Description............................................................... 8
2-2. Block Diagram –Main Section–........................................ 10
2-3. Block Diagram –Display Section–.................................... 11
2-4. Printed Wiring Boards –Main Section– ............................ 12
2-5. Schematic Diagram –Main Section (1/3)–........................ 14
2-6. Schematic Diagram –Main Section (2/3)–........................ 15
2-7. Schematic Diagram –Main Section (3/3)–........................ 16
2-8. Schematic Diagram –Display Section–.............................17
2-9. Printed Wiring Board –Display Section– .......................... 18
3. EXPLODED VIEWS
3-1. Chassis Section ................................................................. 21
3-2. Front Panel Section ........................................................... 22
3-3. CD Mechanism Section (1)............................................... 23
3-4. CD Mechanism Section (2)............................................... 24
4. ELECTRICAL PARTS LIST ........................................ 25
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.
2
SECTION 1
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
1-1. FRONT PANEL ASSY
3 claws
5 CN601
1-2. KEY BOARD
5 button (source)
6 front panel assy
4 claw
2 claws
1 PTT 2.6x8
1 P 2x8
2 P 2x8
3 KEY board
6 button (+.–)
4 button (6 key)
8 button (AMS)
7 button (EJECT)
3
1-3. MAIN SUB ASSY
7 PTT 2.6x6
ground point
1 PTT 2.6x8
3 bracket (front)
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
1-4. CD MECHANISM BLOCK
3 claw
7 CD mechanism block
1 PTT 2.6x8
2 claw
5 CNJ102
6 CN600
4 CNJ103
4
1-5. HEAT SINK
4 heat sink
3 PTT 2.6x10
2 PTT 2.6x10
1-6. CHASSIS (R) BLOCK ASSY
1 PTT 2.6x10
3 tension spring (FL)
4 tension spring (FL)
2 chassis (R) block assy
1 screws (P 2x2.5)
5
1-7. FLOATING BLOCK ASSY
4 tension spring (angle)
8
5
7
3 tension spring (SPM)
9 floating block assy
6
2 lever (LE.L)
1 washer (M)
1-8. 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
2 spring (roller)
4
3
6
1-9. OPTICAL PICK-UP BLOCK
1 gear (worm wheel)
2 shaft (sled guide)
claw
3 optical pick-up block
7
SECTION 2
DIAGRAMS
2-1. IC PIN DESCRIPTION
• IC600 µPD78005GC-156-8BT (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
8
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
99
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