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McIntosh MDA-1000 Service manual

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Page 1
D/A CONVERTER
CONTENTS
Performance Specifications ........................................ 2
Notes ......................................................................... 2
Rear Panel .................................................................. 3
Section Location ........................................................ 4
Block Diagram ...................................................... 5 - 6
Interconnection Diagram ...................................... 7 - 8
Main Schematic and PCB................................... 9 - 18
SERVICE MANUAL
Keyboard Supply Schematic and PCB ............... 19 - 20
Display Schematic and PCB .............................. 21 - 22
Dataport Schematic and PCB ............................ 23 - 24
Exploded View and Parts List ............................. 31 - 32
Repacking Instructions ............................................. 33
Page 2
PERFORMANCE SPECIFICATIONS
Analog Audio Specifications
Frequency Response
+/-0.5dB from 4Hz to 45,000Hz (Sampling Frequency – 96kHz and 88.2kHz) +/-0.3dB from 4Hz to 22,000Hz (Sampling Frequency – 48kHz) +/-0.3dB from 4Hz to 20,000Hz (Sampling Frequency – 44.1kHz) +/-0.3dB from 4Hz to 15,000Hz (Sampling Frequency – 32kHz)
T otal Harmonic Distortion
0.002% at 1,000Hz
Signal T o Noise Ratio
Better than 110dB (A Weighted)
Dynamic Range
Better than 100dB (1,000Hz)
Rated Output V oltage
2V Unbalanced Outputs (Bypass On Mode) 6V Unbalance Outputs (Bypass Off Mode) 2V Balanced Outputs (Bypass On Mode) 6V Balanced Outputs (Bypass Off Mode)
Digital Audio Specifications
Coaxial Inputs (1, 2 and 3)
0.5V p-p @ 75ohms
Optical Inputs (4, 5 and 6)
-15 ~ -20dBm
XRL Input (7)
5V p-p @ 110ohms
Sampling Frequencies
96kHz, 48kHz, 44.1kHz and 32kHz
General Specifications
Power Requirements
100 Volts 50.60Hz, 20 watts 110 Volts 50/60Hz, 20 watts 120 Volts 50/60Hz, 20 watts 220 Volts 50/60Hz, 20 watts 230 Volts 50/60Hz, 20 watts 240 Volts 50/60Hz, 20 watts
Note: Refer to the rear panel of the MDA1000
for the correct voltage.
Overall Dimensions
Width is 17-1/2 inches (44.45cm), Height is 6 inches (15.24cm) including feet, Depth is 16-1/8 inches (40.96cm) including Front Panel and Knobs
Digital Audio Format
IEC958, S/PDIF
NO TES
1. The heavy notes on the schematic denote the primary
signal path.
2. Unless otherwise noted, all voltages indicated on the schematics are measured under the following conditions: a. AC input at 120 volts, 50/60Hz. b. All voltages are +/-10% with respect to ground. A
high impedance (10 megaohm) voltmeter must be used.
3 . Unless otherwise specified:
a. Resistor values are in ohms. b. Capacitor values are microfarads (uF). c. Inductor values are in microhenries (uH).
Weight
24 pounds (10.89kg) net, 38 pounds (17.24kg) in shipping carton
4 . On PC board drawings, Square pad indicates:
a. Polarized Capacitors - Positive b. Diodes - Cathode c. Others - Pin 1
5. WARNING
Parts marked with the symbol have critical characteristics. Use only replacement parts recom­mended by the manufacturer.
2
Page 3
TOP AND REAR PANEL
MDA1000
3
Page 4
SECTION LOCATIONS
DATAPORT
6
PCB
MAIN
PCB
2
UPSAMPLING
3
PCB
TRANSFORMER
5
DISPLAY
PCB
4
KEYBOARD
PCB
TOP VIEW WITH COVER REMOVED
4
Page 5
BLOCK DIAGRAM
MDA1000
DIGITAL INPUT
DATA PORT
IR INPUT
DATA INPUT
IN
POWER
CONTROL
OUT
120VAC 50/60Hz
MUTE
COAXIAL
1
COAXIAL
2
COAXIAL
3
OPTICAL
4
OPTICAL
5
OPTICAL
6
XLR
7
1
2
3
4
5
6
7
POWER
CONTROL
POWER SWITCH
DIFFERENTIAL
DATA PORT
DRIVER
SENSOR
FUSE
AMP
IR
POWER
TRANSFORMER
INPUT LEVEL
SELECT
SETUP
CONTROLS
DIGITAL
INTERFACE
RECEIVER
MICROCONTROLLER
DISPLAY
DISPLAY
POWER
CONTROL
RELAY
DRIVER
DIVIDER
V. F.
BCK
DATA
LRCK
MCK
S/F
LOW VOLTAGE
RESET
DISPLAY ANALOG
VOLTAGE
SUPPLY
DIGITAL
SUPPLY
768KHz
UPSAMPLING
MODULE
5V
15V
-15V
-5V
3.3V
5V
BCK
LRCK
LD ATA
RD ATA
LEFT +
24BIT
D/A
CONVERTER
LEFT +
24BIT
D/A
CONVERTER
LEFT -
24BIT
D/A
CONVERTER
LEFT -
24BIT
D/A
CONVERTER
RIGHT +
24BIT
D/A
CONVERTER
RIGHT +
24BIT
D/A
CONVERTER
RIGHT -
24BIT
D/A
CONVERTER
RIGHT -
24BIT
D/A
CONVERTER
LEFT +
I/V
CONV.
LEFT -
I/V
CONV.
RIGHT +
I/V
CONV.
RIGHT -
I/V
CONV.
LEFT
BALANCED
OUTPUT
LEVEL
CONTROL
RIGHT
BALANCED
OUTPUT
LEVEL
CONTROL
BYPASS
CONTROL
RELAY
BYPASS
CONTROL
RELAY
BYPASS
CONTROL
RELAY
BYPASS
CONTROL
RELAY
LEFT + FILTER
LEFT -
FILTER
RIGHT +
FILTER
RIGHT -
FILTER
LEFT
DIFFERENTIAL
AMP
RIGHT
DIFFERENTIAL
AMP
LEFT +
BALANCED
AMP
LEFT -
BALANCED
AMP
RIGHT +
BALANCED
AMP
RIGHT -
BALANCED
AMP
RELAY
MUTE
RELAY
MUTE
RELAY
MUTE
RELAY
MUTE
RELAY
MUTE
RELAY
UNBALANCED
+
BALANCED
-
RIGHT
UNBALANCED
+
BALANCED
-
LEFT
LEFT
OUTPUTS
RIGHT
5V
3.3V
STANDBY
LOW VOLTAGE
SUPPLY
5 6
Page 6
1
INTERCONNECT
6
DATAPORT
2
MAIN
GND
GND
REM
GND
GND
J1
LCLK
GND
SCLK
GND
DATA
GND
1
NS5V
3
MODULE
GND
1
J13
120V AC
50/60Hz
NS5V
GND
DATA 1
GND
SCLK1
GND
LCLK1
GND
GND
GND
REM
049999
J12
240V
0V B
0V B
0V B
VIO
0V B
J11
J10
J9
1
0V A
120V A
100V A
220V
1
0V A
120V A
100V A
120V
1
0V A
120V A
100V A
BLK
GRY
BLU
100V
1
0V A
120V A
100V A
WHT
BLK
6
20V B
120V B
6
20V B
FIL
5VD
FIL
1
GND
-29V
GND
LCLK2
J6
DATA 2
STBY/ON
BYPASS LED
NS5V
GND
GND
GND
LEVB
INPUT CCW
INPUT CW
REM
SETUP LED
LEVA
J14
8
AC6V
AC6V
AC14V
AC26V
AC26V
AC14V
AC26VCT
AC14VCT
YEL
YEL
BLU
BLK
GRN
RED
GRN
RED
J8 J7
1
AC H
AC L
SETUP
BLK
SCLK2
120V B
6
20V B
120V B
WHT
ORN
6
20V B
120V B
KEYBOARD
4
DISPLAY
5
GND
SETUP LED
SETUP
KBLED
GND
REM
J1
GND
STBY/LED
NS5V
STBY/ON
GND
1
GND
FIL1
FIL2
GND
SETUP LED
SETUP
KBLED
GND
J2
REM
GND
NS5V
GND
STBY/ON
GND
STBY/LED
1
GND
GND
GND
NS5V
BLK
CL
LEVB
SETUP
1
J1
INPUT CCW
INPUT CW
SETUP LED
REM
LEVA
NC
STBY/ON
DI
CE
GND
-29V
GND
5VD
GRN
GRN
YEL
BLU
YEL
RED
BLK
RED
BLK
T1
BLK
BLU
GRY
VIO
ORN
WHT
7 8
S1
POWER
Page 7
MDA1000
2
MAIN
049988 SH 1 OF 4
9 10
Page 8
2
MAIN
049988 SH 2 OF 4
11 12
Page 9
MDA1000
2
MAIN
049988 SH 3 OF 4
13 14
Page 10
2
MAIN
049988 SH 4 OF 4
15 16
Page 11
MDA1000
2
MAIN
049988
3
MODULE
O49999
17 18
Page 12
4
KEYBOARD
049990
NS5V
5J2:8
SETUP LED
5J2:2
GND
5J2:5
REM
5J2:6
GND
5J2:1
KBLED
5J2:3
SETUP
5J2:4
GND
5J2:7
STBY LED
5J2:9
GND
5J2:10
STBY/ON
5J2:11
GND
5J2:12
J1:5
J1:11
J1:8
J1:7
J1:12
J1:10
J1:9
J1:6
J1:4
J1:3
J1:2
J1:1
5V
SENSOR
3
Q1
R1
2
1
75
R2
C1
10
10uF
MT1
Vcc
Vout
213
GND
C2
47uF
C3
.1uF
*
DS1 DS3
DS2
*
J1
R2
1.9V
MT1
DS1
DS2
S1
SETUP
S1
Q1
129485
Rev.A
C1
R1
C2
C3
S2
* Denotes components on the reverse or backside of the Pc Bd
1.9V
DS3
S2
STANDBY/ON
19 20
Page 13
MDA1000
5
DISPLAY
049989
21 22
Page 14
6
DATAPORT
049991
23 24
Page 15
MDA1000
PARTS LIST
Ref. No. Description Part No.
MAIN PCB 049988
1
C1 CAP MPF 0.01UF 5% 63VDC 064312 C2 CAP MONO .1uF 50V 20% Z5U 061305 C3 CAP MONO .1uF 50V 20% Z5U 061305 C4 CAP ELECT 47UF 25V 066413 C5 CAP MPF 0.022UF 5% 63VDC 064316 C6 CAP ELECT 47UF 25V 066413 C7 CAP MPF 0.01UF 5% 63VDC 064312 C8 CAP MPF 0.01UF 5% 63VDC 064312 C9 CAP MPF 0.01UF 5% 63VDC 064312 C10 CAP MPF 0.01UF 5% 63VDC 064312 C11 CAP PF 0.001UF 5% 63VDC 064300 C12 CAP MPF 0.01UF 5% 63VDC 064312 C13 CAP MPF 0.01UF 5% 63VDC 064312 C14 CAP MPF 0.01UF 5% 63VDC 064312 C15 CAP MONO .1uF 50V 20% Z5U 061305 C16 CAP MPF 0.01UF 5% 63VDC 064312 C17 CAP MONO .1uF 50V 20% Z5U 061305 C18 CAP ELECT 10UF 100VDC 066411 C19 CAP MONO .1uF 50V 20% Z5U 061305 C20 CAP MONO .1uF 50V 20% Z5U 061305 C21 CAP MONO .1uF 50V 20% Z5U 061305 C22 CAP ELECT 10UF 100VDC 066411 C23 CAP MONO .1uF 50V 20% Z5U 061305 C24 CAP MONO .01UF 50V 20% X7R 061304 C25 CAP MONO .01UF 50V 20% X7R 061304 C27 CAP MONO .01UF 50V 20% X7R 061304 C28 CAP MONO .01UF 50V 20% X7R 061304 C29 CAP MONO .01UF 50V 20% X7R 061304 C30 CAP ELECT 47UF 25V 066413 C31 CAP MONO .1uF 50V 20% Z5U 061305 C32 CAP MONO .01UF 50V 20% X7R 061304 C33 CAP MONO .1uF 50V 20% Z5U 061305 C34 CAP ELECT 100UF 25V 066412 C35 CAP MONO .1uF 50V 20% Z5U 061305 C36 CAP MONO .1uF 50V 20% Z5U 061305 C37 CAP ELECT 100UF 25V 066412 C38 CAP MONO .1uF 50V 20% Z5U 061305 C39 CAP ELECT 1000UF 25V 066513 C40 CAP MPF 0.033UF 100V 10% 064427 C41 CAP MPF 0.033UF 100V 10% 064427 C42 CAP ELECT 220UF 50V 20% 066254 C43 CAP MONO 100PF 100V 10% NPO 061300 C44 CAP ELECT 47UF 25V 066413 C45 CAP MONO .1uF 50V 20% Z5U 061305 C46 CAP MONO .1uF 50V 20% Z5U 061305 C47 CAP ELECT 3300UF 35V 066509 C48 CAP ELECT 3300UF 35V 066509 C49 CAP ELECT 3300UF 35V 066509 C50 CAP ELECT 3300UF 35V 066509 C51 CAP MONO .01UF 50V 20% X7R 061304 C52 CAP MONO .1uF 50V 20% Z5U 061305 C53 CAP MONO .1uF 50V 20% Z5U 061305 C54 CAP MONO .1uF 50V 20% Z5U 061305 C55 CAP MONO .1uF 50V 20% Z5U 061305 C56 CAP MONO .1uF 50V 20% Z5U 061305 C57 CAP ELECT 220UF 50V 20% 066254 C58 CAP ELECT 47UF 50V 066215 C59 CAP ELECT 220UF 25V AUDIO 066414
C60 CAP ELECT 220UF 25V AUDIO 066414 C61 CAP ELECT 220UF 25V AUDIO 066414 C62 CAP ELECT 220UF 25V AUDIO 066414 C63 CAP ELECT 220UF 25V AUDIO 066414 C64 CAP ELECT 47UF 50V 066215 C65 CAP ELECT 220UF 25V AUDIO 066414 C66 CAP ELECT 10UF 16V 4X5 CASE 066382 C67 CAP ELECT 10UF 16V 4X5 CASE 066382 C68 CAP ELECT 10UF 16V 4X5 CASE 066382 C69 CAP ELECT 10UF 16V 4X5 CASE 066382 C70 CAP ELECT 10UF 16V 4X5 CASE 066382 C71 CAP ELECT 10UF 16V 4X5 CASE 066382 C72 CAP ELECT 10UF 16V 4X5 CASE 066382 C73 CAP ELECT 10UF 16V 4X5 CASE 066382 C74 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C75 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C76 CAP ELECT 100UF 16V 5MM 066539 C77 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C78 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C79 CAP ELECT 100UF 16V 5MM 066539 C80 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C81 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C82 CAP ELECT 100UF 16V 5MM 066539 C83 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C84 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C85 CAP ELECT 100UF 16V 5MM 066539 C86 CAP ELECT 10UF 16V 4X5 CASE 066382 C87 CAP ELECT 10UF 16V 4X5 CASE 066382 C88 CAP ELECT 10UF 16V 4X5 CASE 066382 C89 CAP ELECT 10UF 16V 4X5 CASE 066382 C90 CAP ELECT 10UF 16V 4X5 CASE 066382 C91 CAP ELECT 10UF 16V 4X5 CASE 066382 C92 CAP ELECT 10UF 16V 4X5 CASE 066382 C93 CAP ELECT 10UF 16V 4X5 CASE 066382 C94 CAP ELECT 10UF 16V 4X5 CASE 066382 C95 CAP ELECT 10UF 16V 4X5 CASE 066382 C96 CAP ELECT 10UF 16V 4X5 CASE 066382 C97 CAP ELECT 10UF 16V 4X5 CASE 066382 C98 CAP ELECT 10UF 16V 4X5 CASE 066382 C99 CAP ELECT 10UF 16V 4X5 CASE 066382 C100 CAP ELECT 10UF 16V 4X5 CASE 066382 C101 CAP ELECT 10UF 16V 4X5 CASE 066382 C102 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C103 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C104 CAP ELECT 100UF 16V 5MM 066539 C105 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C106 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C107 CAP ELECT 100UF 16V 5MM 066539 C108 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C109 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C110 CAP ELECT 100UF 16V 5MM 066539 C111 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C112 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C113 CAP ELECT 100UF 16V 5MM 066539 C114 CAP ELECT 10UF 16V 4X5 CASE 066382 C115 CAP ELECT 10UF 16V 4X5 CASE 066382 C116 CAP ELECT 10UF 16V 4X5 CASE 066382 C117 CAP ELECT 10UF 16V 4X5 CASE 066382 C118 CAP ELECT 10UF 16V 4X5 CASE 066382 C119 CAP ELECT 10UF 16V 4X5 CASE 066382 C120 CAP ELECT 10UF 16V 4X5 CASE 066382 C121 CAP ELECT 10UF 16V 4X5 CASE 066382 C122 CAP MONO 100PF 100V 10% NPO 061300 C123 CAP MONO 100PF 100V 10% NPO 061300
C124 CAP MONO 100PF 100V 10% NPO 061300 C125 CAP MONO 100PF 100V 10% NPO 061300 C126 CAP MONO 100PF 100V 10% NPO 061300 C127 CAP MONO 100PF 100V 10% NPO 061300 C128 CAP ELECT 47UF 25V 066413 C129 CAP ELECT 47UF 25V 066413 C130 CAP ELECT 47UF 25V 066413 C131 CAP ELECT 47UF 25V 066413 C132 CAP MONO .1uF 50V 20% Z5U 061305 C133 CAP MONO .1uF 50V 20% Z5U 061305 C134 CAP ELECT 10UF 100VDC 066411 C135 CAP ELECT 10UF 100VDC 066411 C136 CAP ELECT 10UF 100VDC 066411 C137 CAP ELECT 10UF 100VDC 066411 C138 CAP ELECT 10UF 100VDC 066411 C139 CAP ELECT 10UF 100VDC 066411 C140 CAP MONO .1uF 50V 20% Z5U 061305 C141 CAP MONO .1uF 50V 20% Z5U 061305 C142 CAP MONO .1uF 50V 20% Z5U 061305 C143 CAP MONO .1uF 50V 20% Z5U 061305 C144 CAP POLYPROP 4700PF 2.5% 63VDC 064390 C145 CAP POLYPROP 4700PF 2.5% 63VDC 064390 C146 CAP POLYPROP 4700PF 2.5% 63VDC 064390 C147 CAP POLYPROP 4700PF 2.5% 63VDC 064390 C148 CAP POLYPROP 470PF 5% 100VDC 064370 C149 CAP POLYPROP 470PF 5% 100VDC 064370 C150 CAP POLYPROP 470PF 5% 100VDC 064370 C151 CAP POLYPROP 470PF 5% 100VDC 064370 C152 CAP POLYPROP .0015UF 5% 100VDC 064369 C153 CAP POLYPROP .0015UF 5% 100VDC 064369 C154 CAP POLYPROP .0015UF 5% 100VDC 064369 C155 CAP POLYPROP .0015UF 5% 100VDC 064369 C156 CAP MONO .1uF 50V 20% Z5U 061305 C157 CAP ELECT 10UF 100VDC 066411 C158 CAP ELECT 10UF 100VDC 066411 C159 CAP MONO .1uF 50V 20% Z5U 061305 C160 CAP MPF 0.1UF 5% 63VDC 064325 C161 CAP MPF 0.1UF 5% 63VDC 064325 C162 CAP POLYPROP 680PF 2.5% 100VDC 064389 C163 CAP POLYPROP 680PF 2.5% 100VDC 064389 C164 CAP POLYPROP 680PF 2.5% 100VDC 064389 C165 CAP POLYPROP 680PF 2.5% 100VDC 064389 C166 CAP MPF 0.1UF 5% 63VDC 064325 C167 CAP MPF 0.1UF 5% 63VDC 064325 C168 CAP MPF 0.1UF 5% 63VDC 064325 C169 CAP MPF 0.1UF 5% 63VDC 064325 C170 CAP ELECT 47UF 25V 066413 C171 CAP ELECT 47UF 25V 066413 C172 CAP ELECT 47UF 25V 066413 C173 CAP ELECT 47UF 25V 066413 C174 CAP ELECT 47UF 25V 066413 C175 CAP ELECT 47UF 25V 066413 D1 DIODE RECTIFIER 070131 D2 DIODE RECTIFIER 070131 D3 DIODE SILICON 070047 D4 DIODE RECTIFIER 070131 D5 DIODE RECTIFIER 070131 D6 DIODE RECTIFIER 070131 D7 DIODE RECTIFIER 070131 D8 DIODE RECTIFIER 070131 D9 DIODE RECTIFIER 070131 D10 DIODE RECTIFIER 070131 D11 DIODE RECTIFIER 070131 D12 DIODE RECTIFIER 070131
25 26
Page 16
PARTS LIST con’t
D13 DIODE SILICON 070047 D14 DIODE SILICON 070047 D15 DIODE RECTIFIER 070131 D16 DIODE ZENER 6.2V 5% 500MW 070085 D17 DIODE SILICON 070047 D18 DIODE SILICON 070047 D19 DIODE SILICON 070047 D20 DIODE ZENER 30V 1/2W 5% 070161 D21 DIODE SILICON 070047 D22 DIODE FAST RECOVER 070156 D23 DIODE FAST RECOVER 070156 D24 DIODE FAST RECOVER 070156 D25 DIODE FAST RECOVER 070156 D26 DIODE FAST RECOVER 070156 D27 DIODE FAST RECOVER 070156 D28 DIODE FAST RECOVER 070156 D29 DIODE FAST RECOVER 070156 D30 DIODE FAST RECOVER 070156 D31 DIODE FAST RECOVER 070156 D32 DIODE FAST RECOVER 070156 D33 DIODE FAST RECOVER 070156 D34 DIODE FAST RECOVER 070156 D35 DIODE FAST RECOVER 070156 D36 DIODE FAST RECOVER 070156 D37 DIODE FAST RECOVER 070156 D38 DIODE FAST RECOVER 070156 D39 DIODE FAST RECOVER 070156 D40 DIODE SILICON 070047 D41 DIODE SILICON 070047 F1 0.5A 5x20 fuse IEC 089092 FN1 FILTER EMI 180057 FN2 FILTER EMI 180057 FN3 FILTER EMI 180057 FN4 FILTER EMI 180057 FN5 FILTER EMI 180057 HS2 HEA TSINK T O-220 080017 HS3 HEA TSINK T O-220 080017 HS4 HEA TSINK T O-220 080017 HS5 HEA TSINK T O-220 080017 J1 XLR FEMALE HORIZ PCB WITH LATCH 117814 J2 JACK RCA ORANGE WITH GOLD 117798 J3 JACK RCA ORANGE WITH GOLD 117798 J4 JACK RCA ORANGE WITH GOLD 117798 J5 6 PIN HEADER 117828 J6 CONN 23 PIN FFC 117715 J7 BLADE FAST ON W/FEET 117708 J8 BLADE FAST ON W/FEET 117708 J9 CONN PCB MOUNT POWER RED 117719 J10 CONN PCB MOUNT POWER RED 117719 J11 CONN PCB MOUNT POWER RED 117719 J12 CONN PCB MOUNT POWER RED 117719 J13 CONN 12 PIN FFC 117720 J14 HEADER 8 PIN MTA-156 117717 J15 JACK HEADPHONE STEREO 1/8IN 117759 J16 JACK HEADPHONE STEREO 1/8IN 117759 J17 JACK HEADPHONE STEREO 1/8IN 117759 J18 JACK HEADPHONE STEREO 1/8IN 117759 J19 10 PIN HEADER 117829 J20 RECEPTACLE XLR MALE 117686 J21 JACK PHONO DUAL WHT/RED 117692
J22 RECEPT ACLE XLR MALE 117686 K1 RELAY REED FORM 1C 5V 125 OHM 087056 K2 RELAY REED FORM 1C 5V 125 OHM 087056 K3 RELAY REED FORM 1C 5V 125 OHM 087056 K4 RELAY REED FORM 1C 5V 125 OHM 087056 K5 RELAY REED FORM 1A 5V 500 OHMS 087050 K6 RELAY REED FORM 1A 5V 500 OHMS 087050 K7 RELAY REED FORM 1A 5V 500 OHMS 087050 K8 RELAY REED FORM 1A 5V 500 OHMS 087050 K9 RELAY REED FORM 1A 5V 500 OHMS 087050 K10 RELAY REED FORM 1A 5V 500 OHMS 087050 K11 RELAY REED FORM 1A 5V 500 OHMS 087050 L1 CHOKE 18uH 5%-10% 122224 L2 CHOKE 18uH 5%-10% 122224 L3 CHOKE 18uH 5%-10% 122224 L4 BEADS FERRITE LEADED 076019 L5 BEADS FERRITE LEADED 076019 L6 BEADS FERRITE LEADED 076019 L7 CHOKE 100UH 122312 L8 CHOKE 18uH 5%-10% 122224 L9 CHOKE 18uH 5%-10% 122224 L10 CHOKE 18uH 5%-10% 122224 L11 CHOKE 18uH 5%-10% 122224 L12 BEADS FERRITE LEADED 076019 OPT1 Fiber Optic Receiver 058156 OPT2 Fiber Optic Receiver 058156 OPT3 Fiber Optic Receiver 058156 Q1 TRANSISTOR PNP SILICON 132172 Q2 TRANSISTOR PNP 132224 Q3 TRANSISTOR NPN SILICON 132171 Q4 COUPLER OPTICAL SCHMITT OUTPUT 131023 Q5 TRANSISTOR PNP SILICON 132172 Q6 TRANSISTOR NPN 132268 Q7 TRANSISTOR PNP 132267 Q8 TRANSISTOR NPN 132268 Q9 TRANSISTOR PNP 132267 Q10 TRANSISTOR NPN 132268 Q11 TRANSISTOR PNP 132267 Q12 TRANSISTOR NPN 132268 Q13 TRANSISTOR PNP 132267 Q14 TRANSISTOR NPN 132268 Q15 TRANSISTOR PNP 132267 Q16 TRANSISTOR NPN 132268 Q17 TRANSISTOR PNP 132267 R1 RES MF 75 OHM 1% 1/4W 144444 R2 RES MF 110 OHM 1% 1/4W 144489 R3 RES MF 75 OHM 1% 1/4W 144444 R4 RES MF 47.5K 1% 1/4W 144108 R5 RES MF 47.5K 1% 1/4W 144108 R6 RES MF 75 OHM 1% 1/4W 144444 R7 RES MF 2.87K 1% 1/4W 144142 R8 RES MF 47.5K 1% 1/4W 144108 R9 RES MF 221 OHM 1% 1/4W 144172 R10 RES MF 47.5K 1% 1/4W 144108 R11 RES MF 221 OHM 1% 1/4W 144172 R12 RES MF 221 OHM 1% 1/4W 144172 R13 RES MF 221 OHM 1% 1/4W 144172 R14 RES MF 221 OHM 1% 1/4W 144172 R15 RES NETWORK 9X-1-223 144238 R16 RES MF 221 OHM 1% 1/4W 144172 R17 RES MF 221 OHM 1% 1/4W 144172 R18 RES MF 221 OHM 1% 1/4W 144172 R19 RES MF 221 OHM 1% 1/4W 144172 R20 RES MF 221 OHM 1% 1/4W 144172
R21 RES MF 332 OHM 1% 1/4W 144446 R22 RES MF 221 OHM 1% 1/4W 144172 R23 RES MF 221 OHM 1% 1/4W 144172 R24 RES MF 221 OHM 1% 1/4W 144172 R25 RES MF 2.21 OHM 1/4W 1% 144378 R26 RES MF 221 OHM 1% 1/4W 144172 R27 RES MF 22.1K 1% 1/4W 144187 R28 RES MF 1.5K 1% 1/4W 144128 R29 RES MF 10 OHM 1% 1/4W 144157 R30 RES MF 22.1K 1% 1/4W 144187 R31 RES MF 4.75K 1% 1/4W 144097 R32 RES MF 221 OHM 1% 1/4W 144172 R33 RES MF 221 OHM 1% 1/4W 144172 R34 RES MF 221 OHM 1% 1/4W 144172 R35 RES MF 100K 1% 1/4W 144113 R36 RES MF 47.5K 1% 1/4W 144108 R37 RES MF 475 OHM 1% 1/4W 144086 R38 RES MF 221 OHM 1% 1/4W 144172 R39 RES MF 475 OHM 1% 1/4W 144086 R40 PTC RESETTABLE FUSE 144488 R41 PTC RESETTABLE FUSE 144488 R42 RES FP 10 OHM 5% 1/4W 137025 R43 RES MF 47.5K 1% 1/4W 144108 R44 RES CF 10 OHM 5% 1/2W 141165 R45 RES MF 806 OHM 1% 1/4W 144089 R46 RES MF 475K 1% 1/4W 144364 R47 RES MF 47.5K 1% 1/4W 144108 R48 RES MF 10K 1% 1/4W 144053 R49 RES MF 562 OHM 1% 1/4W 144408 R50 RES MF 1K 1% 1/4W 144090 R51 RES MF 10K 1% 1/4W 144053 R52 RES MF 22.1K 1% 1/4W 144187 R53 RES MF 22.1K 1% 1/4W 144187 R54 RES MF 47.5 OHM 1% 1/4W 144442 R55 RES MF 1.5K 1% 1/4W 144128 R56 RES MF 47.5 OHM 1% 1/4W 144442 R57 RES MF 47.5 OHM 1% 1/4W 144442 R58 RES MF 10K 1% 1/4W 144053 R59 RES MF 22.1 OHM 1% 1/4W 144160 R60 RES MF 22.1 OHM 1% 1/4W 144160 R61 RES MF 22.1 OHM 1% 1/4W 144160 R62 RES MF 47.5 OHM 1% 1/4W 144442 R63 RES MF 100K 1% 1/4W 144113 R64 RES MF 100K 1% 1/4W 144113 R65 RES MF 100K 1% 1/4W 144113 R66 RES MF 100K 1% 1/4W 144113 R67 RES MF 1.21K 1% 1/4W 144191 R68 RES MF 1.21K 1% 1/4W 144191 R69 RES MF 1.21K 1% 1/4W 144191 R70 RES MF 1.21K 1% 1/4W 144191 R71 RES MF 100K 1% 1/4W 144113 R72 RES MF 100K 1% 1/4W 144113 R73 RES MF 100K 1% 1/4W 144113 R74 RES MF 100K 1% 1/4W 144113 R75 RES MF 1.5K 1% 1/4W 144128 R76 RES MF 1.5K 1% 1/4W 144128 R77 RES MF 1.5K 1% 1/4W 144128 R78 RES MF 1.5K 1% 1/4W 144128 R79 RES MF 2K 1% 1/4W 144094 R80 RES MF 2K 1% 1/4W 144094 R81 RES MF 2K 1% 1/4W 144094 R82 RES MF 2K 1% 1/4W 144094 R83 RES MF 1.5K 1% 1/4W 144128 R84 RES MF 1.5K 1% 1/4W 144128
2827
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MDA1000
PARTS LIST con’t
R85 RES MF 1.5K 1% 1/4W 144128 R86 RES MF 1.5K 1% 1/4W 144128 R87 RES MF 3.74K 1% 1/4W 144384 R88 RES MF 3.74K 1% 1/4W 144384 R89 RES MF 3.4K 1% 1/4W 144383 R90 RES MF 3.4K 1% 1/4W 144383 R91 RES MF 3.74K 1% 1/4W 144384 R92 RES MF 3.74K 1% 1/4W 144384 R93 RES MF 3.4K 1% 1/4W 144383 R94 RES MF 3.4K 1% 1/4W 144383 R95 RES MF 1.69K 1% 1/4W 144382 R96 RES MF 1.69K 1% 1/4W 144382 R97 RES MF 1.69K 1% 1/4W 144382 R98 RES MF 1.69K 1% 1/4W 144382 R99 RES MF 4.75K 1% 1/4W 144097 R100 RES MF 10 OHM 1% 1/4W 144157 R101 RES MF 4.75K 1% 1/4W 144097 R102 RES MF 4.75K 1% 1/4W 144097 R103 RES MF 4.75K 1% 1/4W 144097 R104 RES MF 10 OHM 1% 1/4W 144157 R105 RES MF 10 OHM 1% 1/4W 144157 R106 RES MF 10 OHM 1% 1/4W 144157 R107 RES MF 10 OHM 1% 1/4W 144157 R108 RES MF 10 OHM 1% 1/4W 144157 R109 RES MF 4.75K 1% 1/4W 144097 R110 RES MF 4.75K 1% 1/4W 144097 R111 RES MF 4.75K 1% 1/4W 144097 R112 RES MF 4.75K 1% 1/4W 144097 R113 RES MF 4.75K 1% 1/4W 144097 R114 RES MF 4.75K 1% 1/4W 144097 R115 RES MF 4.75K 1% 1/4W 144097 R116 RES MF 4.75K 1% 1/4W 144097 R117 RES MF 10 OHM 1% 1/4W 144157 R118 RES MF 10 OHM 1% 1/4W 144157 R119 RES MF 10 OHM 1% 1/4W 144157 R120 RES MF 10 OHM 1% 1/4W 144157 R121 RES MF 10 OHM 1% 1/4W 144157 R122 RES MF 10 OHM 1% 1/4W 144157 R123 RES MF 10 OHM 1% 1/4W 144157 R124 RES MF 10 OHM 1% 1/4W 144157 R125 RES MF 47.5K 1% 1/4W 144108 R126 RES MF 47.5K 1% 1/4W 144108 R127 RES MF 47.5K 1% 1/4W 144108 R128 RES MF 47.5K 1% 1/4W 144108 R129 RES MF 47.5K 1% 1/4W 144108 R130 RES MF 47.5K 1% 1/4W 144108 R131 RES MF 22.1 OHM 1% 1/4W 144160 R132 RES MF 22.1 OHM 1% 1/4W 144160 R133 RES MF 22.1 OHM 1% 1/4W 144160 R134 RES MF 22.1 OHM 1% 1/4W 144160 R135 RES MF 22.1 OHM 1% 1/4W 144160 R136 RES MF 22.1 OHM 1% 1/4W 144160 R137 RES MF 47.5K 1% 1/4W 144108 R138 RES MF 47.5K 1% 1/4W 144108 R139 RES MF 47.5K 1% 1/4W 144108 R140 RES MF 47.5K 1% 1/4W 144108 R141 RES MF 47.5K 1% 1/4W 144108 R142 RES MF 47.5K 1% 1/4W 144108 R143 RES MF 4.02K 1% 1/4W 144096 R144 RES MF 1K 1% 1/4W 144090
R145 RES MF 1K 1% 1/4W 144090 R146 RES MF 1K 1% 1/4W 144090 R147 RES MF 1K 1% 1/4W 144090 R148 RES MF 1K 1% 1/4W 144090 R149 RES MF 1K 1% 1/4W 144090 R150 RES MF 1K 1% 1/4W 144090 R151 RES MF 1K 1% 1/4W 144090 R152 RES MF 47.5 OHM 1% 1/4W 144442 R153 RES MF 475 OHM 1% 1/4W 144086 RL1 RELAY 5V DPST 087074 RL2 RELAY 5V DPST 087074 T1 TRANSFORMER DIGITAL INTERFACE 159285 U1 DIFFERENTIAL RECEIVER 133485 U2 DIGITAL INTERFACE RECEIVER 133483 U3 SINGLE 2-INPUT NOR GATE 133500 U4 DUAL D-FLIP-FLOP 133499 U5 SINGLE 2-INPUT AND GATE 133502 U6 PROGRAMMED VERSION OF 133495 133496 U7 SINGLE 2-INPUT NAND GATE 133501 U8 OCTAL BUFFER WITH 3 STATE 133503 U9 SINGLE 2-INPUT AND GATE 133502 U10 REGULATOR 3.3V LOW DROP 133464 U11 IC REGULATOR 5V 1.5A LOW DROP 133365 U12 IC AND 2 INPUT X 4 133175 U13 IC MONOSTB MULTIVIB X 2 133182 U14 IC REGULATOR 3.3V LOW DROPOUT 133393 U15 IC REGULATOR 5V 1.5A LOW DROP 133365 U16 -5V LOW DROPOUT REGULATOR 133493 U17 IC REGULATOR 12V 133156 U18 IC REGULATOR -12V 133155 U19 IC D/A CONVERTER 24 BIT 133392 U20 IC D/A CONVERTER 24 BIT 133392 U21 IC D/A CONVERTER 24 BIT 133392 U22 IC D/A CONVERTER 24 BIT 133392 U23 IC D/A CONVERTER 24 BIT 133392 U24 IC D/A CONVERTER 24 BIT 133392 U25 IC D/A CONVERTER 24 BIT 133392 U26 IC D/A CONVERTER 24 BIT 133392 U27 IC OP AMP DUAL FET INPUT 133432 U28 IC OP AMP DUAL FET INPUT 133432 U29 STEREO VOLUME CONTROL 133505 U30 STEREO VOLUME CONTROL 133505 U31 IC DUAL OPERA TIONAL AMPLIFIER 133260 U32 IC DUAL OPERA TIONAL AMPLIFIER 133260 U33 IC DUAL OPERA TIONAL AMPLIFIER 133260 U34 IC DUAL OPERA TIONAL AMPLIFIER 133260 U35 IC DUAL OPERA TIONAL AMPLIFIER 133260 Y1 RESONATOR CERAMIC 6.0MHZ W/CAP 180039
3
UPSAMPLING MODULE 049999
4
KEYBOARD PCB 049990
C1 CAP ELECT 10UF 16V 4X5 CASE 066382 C2 CAP ELECT 47UF 16V 6.3X5 CASE 066380 C3 CAP MONO .1uF 50V 20% Z5U 061305 DS1 LED SQUARE RED 058109 DS2 LED GREEN 5MM HI-INT VF[V] 3.5 058165 DS3 LED SQUARE RED 058109 J1 CONN 12 PIN FFC 117720 MT1 SENSOR IR 38KHZ 121046 Q1 TRANSISTOR NPN 132223 R1 RES MF 10 OHM 1% 1/4W 144157
R2 RES MF 75 OHM 1% 1/4W 144444 S1 SWITCH PB TACT 150058 S2 SWITCH PB TACT 150058
5
DISPLAY PCB 049989
C1 CAP ELECT 10UF 16V 4X5 CASE 066382 C2 CAP MONO .1uF 50V 20% Z5U 061305 C3 CAP ELECT 10UF 50V LOW ESR 066437 C4 CAP MONO 22PF 200V 10% NPO 061298 C5 CAP MONO .1uF 50V 20% Z5U 061305 C6 CAP ELECT 47UF 16V 6.3X5 CASE 066380 DS1 LED GREEN 5MM HI-INT VF[V] 3.5 058165 DS2 LED GREEN 5MM HI-INT VF[V] 3.5 058165 DS3 LED GREEN 5MM HI-INT VF[V] 3.5 058165 DS4 16 Digits VF display 058169 J1 CONN 23 PIN FFC 117715 J2 CONN 12 PIN FFC 117720 L1 CHOKE 18uH 5%-10% 122224 L2 BEADS FERRITE LEADED 076019 L3 BEADS FERRITE LEADED 076019 R1 RES MF 332 OHM 1% 1/4W 144446 R2 RES MF 100 OHM 1% 1/4W 144196 R3 RES MF 100 OHM 1% 1/4W 144196 R4 RES MF 100 OHM 1% 1/4W 144196 R5 RES MF 100 OHM 1% 1/4W 144196 R6 RES MF 47.5K 1% 1/4W 144108 R7 RES NETWORK 3X22K BUSSED 144252 R8 RES MF 5.62K OHM 1% 1/4W 144447 S1 16 ENCODER 129294 S2 ENCODER OPTICAL ROTARY 146246 U1 VFD DRIVER 133442
6
DATAPORT PCB 049991
C1 CAP MONO .1uF 50V 20% Z5U 061305 C2 CAP ELECT 10UF 50V 066445 J1 CONN 12 PIN FFC 117720 J2 JACK HEADPHONE STEREO 1/8IN 117759 J3 JACK HEADPHONE STEREO 1/8IN 117759 J4 JACK HEADPHONE STEREO 1/8IN 117759 J5 JACK HEADPHONE STEREO 1/8IN 117759 J6 JACK HEADPHONE STEREO 1/8IN 117759 J7 JACK HEADPHONE STEREO 1/8IN 117759 J8 JACK HEADPHONE STEREO 1/8IN 117759 L1 BEADS FERRITE LEADED 076019 R1 RES MF 100K 1% 1/4W 144113 R2 RES NETWORK 3X22K BUSSED 144252 R3 RES MF 100 OHM 1% 1/4W 144196 R4 RES MF 100 OHM 1% 1/4W 144196 R5 RES MF 100 OHM 1% 1/4W 144196 R6 RES MF 100 OHM 1% 1/4W 144196 R7 RES MF 100 OHM 1% 1/4W 144196 R8 RES MF 100 OHM 1% 1/4W 144196 R9 RES MF 100 OHM 1% 1/4W 144196 R11 RES MF 47.5 OHM 1% 1/4W 144442 SP1 BRACKET PCB CARD MOUNTING 003611 SP2 BRACKET PCB CARD MOUNTING 003611 U1 IC SHFT REG SER-PAR 133186 U2 LB1720 DRIVER ARRAY 133180
3029
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EXPLODED VIEW and PARTS LIST
Ref No.
Part No.
1 016499 CENTER GLASS PANEL 2 016500 RIGHT GLASS PANEL 3 016498 LEFT GLASS PANEL 4 017517 PUSHBUTTON ASSY BLK 5 017531 PUSHBUTTON ASSY RED 6 078033 O-RING 7 148073 SWITCH DPDT ROCKER 8 094016 TAPE VINYL FOAM 1/16 X 1/4 9 018722 EXTRUSION CENTER 5” 10 018721 END CAP 5” 11 018715 TOP/BOTTOM END CAP 12 100342 SCREW 6-32 X 3/8 FILLISTER HD 13 092440 DISPLAY FILTER 14 005358 PLATE BACK 15 005360 GAP PLATE 16 100276 SCREW MACH SEMS 6-32 X 5/16 PH PN 17 101074 SCREW TAPPING 4-40 X 1/4 PH PN 18 049990 ASSY KEYBOARD PCB 19 017933 CIRCUIT BOARD SUPPORT 20 017907 TITLE/PUSHBUTTON BACKLIGHT 21 017901 LOGO/PUSHBUTTON BACKLIGHT 22 017934 CIRCUIT BOARD SUPPORT 23 049989 ASSY DISPLAY PCB 24 101222 SCREW TT SEMS 6-32 X 1/4 PH PN 25 005359 SUBPANEL 26 159343 TRANSFORMER R-CORE POWER 27 117800 MTA CONN 8 PIN .156 28 102003 NUT MACH 6-32 W/LOCK 29 018723 TOP PANEL 30 005364 TOP STRIP 31 094192 TAPE DOUBLE SIDED 1/2”
Description
32 005396 GOLD STRIP 33 016501 GLASS TOP COVER 34 094442 FOAM PAD 35 005365 TRAY 36 102064 NUT CAP 6-32 37 049619 ASSY KNOB 40 METRIC W/O INDEX 38 050000 ASSY KNOB 40 AMER W/O INDEX 39 104017 BLK FELT WASHER 3/4 X 1/4 X 1/16 40 101232 SCREW 6-32 X 1/4 PHIL FLAT 41 101196 SCREW TAP SEMS 6-32 X 1/4 PH PN 42 049988 ASSY MAIN PCB 43 049999 ASSY UPSAMPLING PCB 44 126960 DECAL UPSAMPLING 45 126961 DECAL D/A CONVERTER LEFT 46 126962 DECAL D/A CONVERTER RIGHT 47 005366 PCB BRACE 48 049991 ASSY DATAPORT PCB 49 117755 RECEPTACLE INPUT & LINE FILTER 50 102001 NUT KEP 4-40 CADMIUM PLATE 51 102002 NUT MACH 6-32 SELF-LOCK 52 005357 REAR PANEL 53 101197 SCREW HI-LO 6-32 X 1/4 PH PN 54 100356 SCREW 10-32 X 1/2 LOW SHCS 55 005361 SIDE PANEL 56 018724 SIDE PANEL 57 101109 SCREW 6-32 X 5/16 PH PN BLK 58 005363 BOTTOM COVER 59 017937 FOOT 60 104083 WASHER #10 PLATED 104062 61 100159 SCREW MACH 10-32 X 3/4 PH PN BLK
3231
Page 19
REPACKING INSTRUCTIONS
MDA1000
33
Page 20
D/A CONVERTER
SERVICE MANUAL
The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated, who reserve the right to improve design without notice. Because of the constant upgrading of McIntosh products’ circuitry and components, the Company cannot insure, and does not warrant, the accuracy of the within schematic material, which is intended for information only.
McINTOSH LABORATORY, INC., 2 CHAMBERS STREET, BINGHAMTON, NEW YORK 13903 Printed in U.S.A. Part Number 040899
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