Sony ECMS-80 Service manual

Page 1
ECM-S80
SERVICE MANUAL
SPECIFICATIONS
Type Electret condenser microphone Cord ø 2.2 mm (3 /32 in.)OFC litz cord
(2 core shielded) Length:Approx.70 cm (27 5 /8 in.) Attached with gold plated L-shaped stereo miniplug
Power source 2 way power supply system
plug-in power alkaline manganese battery LR44 (1)
Dimensions Approx.54 × 11 × 86 mm (w/h/d)
(2 1 /4 × 7 /16 × 3 1 /2 in.) Mass Approx.39 g (1 oz.)(including battery) Frequently response
100 – 10,000 Hz Directivity Unidirectional × 2 Output impedance
1.6 k Ω ± 30%
Sensitivity Open circuit output voltage level –40 ± 4 dB/Pa
0 dB =1 V /Pa,1,000 Hz
(1 Pa =10 µ bar =94 dB Battery life Approx.80 hours (continuous operation) Operating temperature range
0 °C – 40 °C (32 °F – 104 °F)
SPL
US Model
Canadian Model
AEP Model
E Model
)
9-873-538-01
2002B0200-1 © 2002.2
Design and specifications are subject to change without notice.
ELECTRET CONDENSER MICROPHONE
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
Page 2
ECM-S80
SECTION 1
SERVICING NOTES
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam­aged by heat.
z
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher
than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350°C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!
• Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.
• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.
“REEL ASSY, CORD” INSTALLATION
1
Put the flexible board through the hole of the flexible holder.
2
Wind flexible board around the flexible holder.
Note :
Leave the flexible board for 20 to 30mm.
3
Attach the flexible holder to the "reel ASSY, cord".
4
Loosen flexible board doesn't seem to coil around the flexible holder.
Flexible board
1
Holder, flexible
Flexible board
20 to 30 mm
Holder, flexible
2
LOCA TING THE CONTROLS
1
2
3
4
SECTION 2
GENERAL
5
6
Connection cord
Knot part of connection cord
1 Cord retracting wheel 2 POWER switch
When the microphone is powered by plug-in power,turn its own power off.
3 Battery check indicator 4 Microphone 5 Stereo miniplug
To the microphone jack of the recording equipment
6 Slide
3
4
Loosen flexible board doesn't seem to coil around the flexible holder.
Reel ASSY, cord
This section is extracted from instruction manual.
2
Page 3
SECTION 3
DIAGRAMS
ECM-S80
3-1. PRINTED WIRING BOARD
1
MIC1
L
AMP BOARD
D1
RED
BLK
C3
A
B
: Uses unleaded solder.
2
SW1
C4
(PLUG IN POWER)
3 4 5
C6
R5
D2
1-682-765-
ALKALINE MANGANESE BATTERY
Note:
X : parts extracted from the component side.
b : Pattern from the side which enables seeing.
R6
RED
BLK
RED
LR44
1PC, 1.5V
R1R2R7
C5
SW1,2
POWER
OFFTON
(OUTPUT)
SW2
P1
D3
POWER
BLK
11
(11)
MIC2
R
3
Page 4
ECM-S80
3-2. SCHEMATIC DIAGRAM
MIC1
L
UDZSTE-17-4.7B
D1
C3
1
MIC2
R
ALKALINE MANGANESE BATTERY
LR44
1PC,1.5V
D2
UDZSTE-17-4.7B
2.5V
R1
3.3k
P1
(OUTPUT)
SW1,2
POWER
(PLUG IN POWER)
C5 47
C6
R6
47
470
2.5V
OFF
ON
D3
SML-310LT
POWER
SW1
C4
1
R7
100
3.3k
R2
SW2
10k
R5
Note:
• 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 and 1/4 W or less unless otherwise specified.
A : B+ Line.
• V oltages are dc with respect to ground under no-signal conditions.
• Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production toler­ances.
• Signal path.
F
4
Page 5
NOTE :
• -XX, -X mean standardized parts, so they may have some difference from the original one.
• Items marked “ * ”are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.
14
13
P1
SECTION 4
EXPLODED VIEW
• The mechanical parts with no reference number in the exploded views are not supplied.
15
12
11
10
23
16
20
17
ECM-S80
18
19
9
21
22
8
1
7
1
6
2
3
1
2
1
5
4
2
Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark
1 3-234-433-01 FOOT, RUBBER 2 3-318-203-01 SCREW (B 1.7X6), TAPPING 3 3-234-420-01 TERMINAL, PLUS 4 3-234-425-01 CASE, BATTERY 5 3-234-430-02 SLEEVE
6 3-234-418-01 CASE, REAR 7 3-234-421-01 TERMINAL, MINUS 8 3-234-427-01 SLIDE, CORD 9 3-234-434-01 RING, SLIP 10 3-234-431-01 HOLDER, FLEXIBLE
11 A-3174-083-A REEL ASSY, CORD 12 3-234-422-01 LEVER, SWITCH
13 3-234-424-01 SPRING, LOCK 14 A-3174-081-A CASE ASSY, FRONT 15 3-234-423-01 KNOB, SWITCH
16 1-682-766-11 FLEXIBLE BOARD
* 17 1-682-765-11 AMPLIFIER BOARD
18 3-318-203-34 SCREW (B1.7X2.5), TAPPING 19 3-237-418-01 SPRING, GROUND COIL 20 A-3174-087-A UNIT ASSY (MIC L, R)
21 3-237-422-01 CUSHION 22 3-238-572-01 PLATE, GROUND 23 3-237-420-01 SHEET (E), DOUBLE-FACE ADHESIVE P1 1-823-289-11 CORD, CONNECTION (2 CORE) (OUTPUT)
5
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ECM-S80
SECTION 5
AMPLIFIER
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
Note:
When indicating parts by reference number, please include the board name.
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
* 1-682-765-11 AMPLIFIER BOARD
C3 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C4 1-125-837-11 CERAMIC CHIP 1uF 10% 6.3V C5 1-119-663-11 TANTAL. CHIP 47uF 20% 2.5V C6 1-119-663-11 TANTAL. CHIP 47uF 20% 2.5V
D1 8-719-083-60 DIODE UDZSTE-174.7B D2 8-719-083-60 DIODE UDZSTE-174.7B D3 8-719-074-30 DIODE CL-190UR-CD-T
****************
<CAPASITOR>
<DIODE>
ELECTRICAL PARTS LIST
• Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set.
• -XX, -X mean standardized parts, so they may have some difference from the original one.
• Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.
• RESISTORS All resistors are in ohms METAL: Metal-film resistor METAL OXIDE: Metal Oxide-film resistor F : nonflammable
16 1-682-766-11 FLEXIBLE BOARD 20 A-3174-087-A UNIT ASSY (MIC L, R) P1 1-823-289-11 CORD, CONNECTION (2 CORE) (OUTPUT)
***********************************************************
3-241-661-11 MANUAL, INSTRUCTION
• SEMICONDUCTORS
In each case, u: µ , for example: uA...: µ A..., uPA...: µ PA..., uPB...: µPB..., uPC...: µ PC..., uPD...: µ PD...
• CAPACITORS
uF : µ F
• COILS
uH : µ H
MISCELLANEOUS
***************
ACCESSORIES
************
(ENGLISH, FRENCH, GERMAN, SPANISH,
ITALIAN, PORTUGUESE)
<RESISTOR>
R1 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R2 1-216-827-11 METAL CHIP 3.3K 5% 1/16W R5 1-216-833-11 METAL CHIP 10K 5% 1/16W R6 1-216-817-11 METAL CHIP 470 5% 1/16W R7 1-216-809-11 METAL CHIP 100 5% 1/16W
<SWITCH>
SW1 1-572-018-11 SWITCH, SLIDE (POWER) SW2 1-572-018-31 SWITCH, SLIDE (POWER)
***********************************************************
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ECM-S80
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
7
Page 8
ECM-S80
REVISION HISTORY
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V er. Date Description of Revision
1.0 2002.02 New
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