TEAC EX-CD3 Service Manual

Cover page of TEAC EX-CD3 Service Manual

Service Manual for TEAC EX-CD3, downloadable as a PDF file.

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CD/TUNER/AMPLIFIER
EX-CD3
NOTES
PC boards shown are viewed from parts side.
The parts with no reference number or parts number in the
exploded views are not supplied.
As regards the resistors and capacitors, refer to the circuit
diagrams contained in this manual.
Parts marked with this sigh are critical components.
They must be replaced with identical components - refer to
the appropriate parts list and ensure exact replacement.
Parts of [
] mark can be used only with the version
designated.
[J] : JAPAN
[US] : U.S.A.
[C] : CANADA
[E] : EUROPE [UK] : U.K.
[GE] : GENERAL EXPORT
9A08312000
background image
CD/TUNER/AMPLIFIER
EX-CD3
NOTES
PC boards shown are viewed from parts side.
The parts with no reference number or parts number in the
exploded views are not supplied.
As regards the resistors and capacitors, refer to the circuit
diagrams contained in this manual.
Parts marked with this sigh are critical components.
They must be replaced with identical components - refer to
the appropriate parts list and ensure exact replacement.
Parts of [
] mark can be used only with the version
designated.
[J] : JAPAN
[US] : U.S.A.
[C] : CANADA
[E] : EUROPE [UK] : U.K.
[GE] : GENERAL EXPORT
9A08312000
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SERVICE MANUAL
2
Specifications
AMP Section
Output Power
: 20 W/ch (0.5%, 6 ohms, 1 kHz)
Input Sensitivity
: 200 mV
Frequency Response
: 20 Hz to 40,000 Hz
General
Power Consumption
: 60 W
Power Requirements
: 120 V, 60 Hz [US]
230 V, 50 Hz [EUR]
Dimensions (W x H x D)
: 175 x 140 x 360 mm
Weight (net)
: 4.0 kg
Standard Accessories
Remote Control Unit
Operator's Manual
AM Loop Antenna
FM Lead-type Antenna
Design and specifications are subject to change
without notice.
The illustrations may differ slightly from
production models.
FM Section
Frequency Response
: 87.50 MHz to 108.00 MHz
(100 kHz steps) [US]
(50 kHz steps) [EUR]
Signal-to-Noise Ratio
: Mono: 65 dB (Mono)
Stereo: 56 dB (Stereo)
AM Section
Frequency Response
: 530 kHz to 1720 kHz [US]
(10 kHz steps)
: 522 kHz to 1620 kHz [EUR]
(9 kHz steps)
Signal-to-Noise Ratio
: 35 dB
CD PLAYER Section
Signal-to-Noise Ratio
: 80 dB ( with IHF "A" Filter)
T.H.D
: 0.05% (1 kHz, 20 kHz LPF)
Channel Seperation
: 55 dB (1 kHz)
Channel Balance
: 1 dB
Frequency Response
: 17 Hz - 20 kHz (±1.5 dB)
Wow Flutter
: Bellow Measurable
CONTENTS
SPECIFICATIONS..................................................................................2
IC PIN FUNCTION .................................................................................3
MEASUREMENTS AND ADJUSTMENTS......................................................7
WIRING DIAGRAM ..............................................................................17
BLOCK DIAGRAM ...............................................................................19
SCHEMATIC DIAGRAM.........................................................................20
PRINTED CIRCUIT BOARDS ...................................................................27
MECHANISM ASS'Y ............................................................................31
EXPLODED VIEW ................................................................................35
ELECTRICAL PARTS LIST ......................................................................38
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SERVICE MANUAL
3
PIN No.
NAME
I/O
DESCRIPTION
VDD
HREQ
SLQCLK
SLQIN
SLQOUT
DATA
CLOCK
STEREO IN
TUNED
HPIN
PROTECTOR
KEY MATRIX
VSS
VAREF
BACK UP
X-TAL
X IN
X OUT
RESET
REMOTE IN
BUS IN
BUS OUT
SPEAKER
CE
DATA OUT
CLOCK
DATA IN
CLOCK
DATA
POWER
MUTE
VFL
GRID
SEGMENT
CD POWER
ON/STBY LED
TAPE `H'
MD `H'
JOG CONTROL
IC36 PIN FUNCTION (IC : BVITMP87PM78F)(AMP)
1, 25
6
7
8
9
12
13
14
15
16
17
19, 20, 21
22,23,27,30
24
26
28, 29
31
32
33
34
35
36
38
41
42
43
44
45
46
47
48
50
52 ~ 60
61 ~ 82
83 ~ 87
89
90
91
93
96, 97
POWER SUPPLY (+5V)
BUS for CD CLOCK
BUS for CD CHIP ENABLE
RESET for CD
MUTE for CD SINGLE
EUROPE VERSION RDS DATA CONTROL PORT
STEREO IN CONTROL INPUT
TUNED CONTROL INPUT
PROTECTOR IN PORT
KEY MATRIX PORTS
GND
A/D CONVERTOR REFERENCE VOLTAGE
BACK-UP MODE CONTROL INPUT
32.768kHz SUB CLOCK CONNECTING PORT
8MHz CRYSTAL CONNECTING TERMINAL
SYSTEM RESET PULSE INPUT
REMOTE CONTROL SIGNAL INPUT
REMOTE CONTROL SIGNAL INPUT
REMOTE CONTROL SIGNAL INPUT
SPEAKER ON/OFF PORT
PLL DATA CONTROL PORT
TDA7318D DATA CONTROL PORT
POWER ON/OFF
SIGNAL MUTE
(-33V) NEGATIVE POWER SUPPLY FOR FIP BLINKING
FIP GRID CONTROL OUTPUTS
FIP SEGMENT CONTROL OUTPUTS
AREA OPTION
CD POWER ON/OFF PORT
ON/STANDBY LED CONTROL PORT
ON TAPE FUNCTION `H' OUTPUT PORT
ON MD FUNCTION `H' OUTPUT PORT
VOL/BAL/BASS/TRE CONTROL JOG INPUT PORT
-
I/O
I/O
I
O
O
O
I
I
I
I
-
-
I
I
I
O
I
I
I
O
O
O
O
O
I
O
O
O
O
O
O
I
O
O
O
O
I
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SERVICE MANUAL
4
PIN No.
NAME
I/O
DESCRIPTION
VDD
BUS 0
BUS 1
BUS 2
BUS 3
BUCK
CCE
CDRE
MUTE
SIO CLOCK
SIO OUT
SIO IN
HREQ
VSS
X IN
X OUT
RESET
A
B
C
D
DSP POWER
UN CLAMP SW
T.U HEIGHT SW
HOLDER MODE SW
T.U HEIGHT SW
HOLDER HEIGHT SW
LOAD/CLAMP
OPEN SW
CLOSE/HP SW
DISC ON SW
DISC CENTER SW
IC 66 PIN FUNCTION (IC : BVITMP87PM78F)(CD)
1, 25
2
3
4
5
6
7
8
9
10
11
12
13
22,23,27,30
31
32
33
42
43
44
45
46
83
84
85
86
87
88
89
90
91
92
POWER SUPPLY (+5V)
BUS for CD DATA
BUS for CD DATA
BUS for CD DATA
BUS for CD DATA
BUS for CD CLOCK
BUS for CD CHIP ENABLE
RESET for CD
MUTE for CD SINGLE
BUS for CD DATA
GND
8MHz CRYSTAL CONNECTING TERMINAL
SYSTEM RESET
PLL DATA CONTROL PORT
CD POWER ON/OFF
MECHANISM SW CONDITION
-
I/O
I/O
I/O
I/O
I/O
I/O
O
O
I/O
I/O
I/O
I/O
-
I
O
I
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
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SERVICE MANUAL
5
PIN ASSIGNMENTS
(TOP VIEW)
PIN BLOCK DIAGRAM

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