Text preview for : Yamaha-MG82CX_MG102C mix.pdf part of Yamaha MG82CX, MG102C mixer
Back to : Yamaha-MG82CX_MG102C mix. | Home
MIXING CONSOLE
SERVICE MANUAL
MG82CX MG102C
CONTENTS
SPECIFICATIONS ..............................................3/6
CIRCUIT BOARD LAYOUT .................9
DIMENSIONS ............................................................9
PANEL LAYOUT ....................................10
GENERAL SCHEMATIC DIAGRAM .............14
DISASSEMBLY PROCEDURE ............................16
LSI PIN DESCRIPTION .............................20
IC BLOCK DIAGRAM ..................................21
CIRCUIT BOARD .........................................23
INSPECTIONS .......................................................32/39
PARTS LIST
BLOCK DIAGRAM
CIRCUIT DIAGRAM
PA 011846
MG82CX: 200702-29190 HAMAMATSU, JAPAN
MG102C: 200702-20790 Copyright (c) Yamaha Corporation. All rights reserved. PDF & '07.01
MG82CX/MG102C
IMPORTANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic
service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users,
and have therefore not been restated.
WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury,
destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise
all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the
appointed service representative.
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certification,
recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service
departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in
specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.
WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated
by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.)
IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where applicable)
components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly other entities) to cause
cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/
flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured makings identifying the terminals in
your plug proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Making sure that neither core is connected to the earth terminal of the three pin plug.
· This applies only to products distributed by Yamaha-Kemble Music (U.K.) Ltd. (2 wires)
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.
2
MG82CX/MG102C
SPECIFICATIONS
Electrical Specifications
MIN TYP MAX UNIT
Frequency Response STEREO OUT GAIN: min (CHs 1-5/6) 3.0 1.0
EFFECT SEND 20 Hz-20 kHz
Nominal output level @1 kHz 3.0 1.0 dB
(AUX SEND*)
MONITOR OUT, REC OUT 3.0 1.0
Total Harmonic Distortion STEREO OUT +14 dBu, 20 Hz-20 kHz, Input Gain Control at mini-
0.1 %
(THD + N) mum
Hum & Noise Input: CH INPUT 1, 2 MIC EIN (Equivalent Input Noise): Rs = 150 , GAIN:
128
maximum (CH1, 2)
Hum & Noise are measured
with a 6 dB/octave filter STEREO OUT STEREO Master control at nominal level and all
87
@12.7 kHz; equivalent to a CH Level control at minimum.
20 kHz filter with infinite EFFECT SEND All CH EFFECT (AUX*) controls at minimum. dBu
85
dB/octave attenuation. (AUX SEND*)
STEREO OUT STEREO Master control and one CH level control
64
at nominal level (CH1, 2)
STEREO OUT Residual Output Noise 100
Crosstalk (1 kHz) Adjacent Input CH1, 2 70
dB
Input to Output STEREO L/R, CH 1, 2, PAN: panned hard left or right 70
Maximum Voltage Gain (1 kHz) Rs = 150 MIC to CH INSERT OUT 60
INPUT GAIN: maximum MIC to STERO INSERT OUT 76
All level controls are maxi-
mum when measured MIC to REC OUT 58.2
PAN/BAL: panned hard left MIC to MONITOR OUT 92
or hard right.
MIC to PHONES OUT 81
MIC to EFFECT SEND (AUX SEND*) 76 dB
LINE to STEREO OUT 50
LINE to EFFECT SEND (AUX SEND*) 47
ST CH 7/8, (CHs 7/8, 9/10*) to STEREO OUT 26
Rs = 150 RETURN to STEREO OUT 12
Rs = 600 2TR IN to STEREO OUT 23.8
Phantom Voltage MIC no load 48 V
General Specifications
Input HPF CHs 1-5/6, 80 Hz, 12 dB/oct
Input Equalization CHs 1-5/6 HIGH: 10 kHz (shelving)
Turn over/roll-off frequency MID: 2.5 kHz (peaking)
of shelving: 3 dB below LOW: 100 Hz (shelving)
maximum variable level. CH 7/8 (CHs 7/8, 9/10*) HIGH: 10 kHz (shelving)
±15 dB maximum
LOW: 100 Hz (shelving)
PEAK Indicator Red LED turns on when post EQ signal (either post MIC HA or post EQ signal
for CHs 3/4, 5/6) reaches 3 dB below clipping (+17 dBu)
Internal Digital Effect* 16 PROGRAM, PARAMETER control
Foot Switch (Digital Effect On/Off)
LED Level Mete Pre MONITOR Level 2x7 points LED meter (PEAK, +6, +3, 0, 5, 10, 20 dB)
PEAK lights if the signal level reaches 3 dB below the clipping level.
Power Supply Adaptor PA-10 AC 38 VCT, 0.62 A, Cable Length = 3.6 m
Power Consumption 21 W
Dimensions (W x H x D) 256.6 mm x 62.2 mm x 302.5 mm
Net Weight 1.6 kg (MG82CX), 1.5 kg (MG102C)
All level controls are nominal if not specified.
Output impedance of signal generator: 150 ohms
* The MG82CX feature is described first, followed by the MG102C feature in brackets: MG82CX (MG102C)
3
MG82CX/MG102C
Input Specifications
Input Appropriate Max. before Connector
Input Connectors Gain Sensitivity * Nominal Level
Impedance Impedance Clipping Specifications
60 dB 72 dBu (0.195 mV) 60 dBu (0.775 mV) 40 dBu (7.75 mV) XLR-3-31 type
CH INPUT MIC 50600
3 k (balanced [1 = GND,
(CHs 1, 2) 16 dB Mics 28 dBu (30.8 mV) 16 dBu (123 mV) +4 dBu (1.23V) 2 = HOT, 3 = COLD])
34 dB 46 dBu (3.88 mV) 34 dBu (15.5 mV) 14 dBu (155 mV) TRS phone jack
CH INPUT LINE 600 (balanced [Tip =
10 k
(CHs 1, 2) +10 dB Lines 2 dBu (0.615 V) +10 dBu (2.45 V) +30 dBu (24.5 V) HOT, Ring = COLD,
Sleeve = GND])
ST CH MIC 60 dB 72 dBu (0.195 mV) 60 dBu (0.775 mV) 40 dBu (7.75 mV) XLR-3-31 type
50600
INPUT (CHs 3/4, 3 k (balanced [1 = GND,
16 dB Mics 28 dBu (30.8 mV) 16 dBu (123 mV) 6 dBu (389 mV)
5/6) 2 = HOT, 3 = COLD])
ST CH LINE 34 dB 46 dBu (3.88 mV) 34 dBu (15.5 mV) 14 dBu (155 mV)
600 Phone jack
INPUT (CHs 3/4, 10 k
+10 dB Lines 2 dBu (0.615 V) +10 dBu (2.45 V) +30 dBu (24.5V) (unbalanced)
5/6)
ST CH INPUT Phone jack
600
(CH 7/8 (CHs 7/8, -- 10 k 22 dBu (61.5 mV) 10 dBu (245 mV) +10 dBu (2.45 V) (unbalanced)
Lines
9/10)) RCA pin jack
TRS phone jack
CH INSERT IN 600 (unbalanced [Tip =
-- 10 k 12 dBu (195 mV) 0 dBu (0.775 V) +20 dBu (7.75 V)
(CHs 1, 2) Lines Out, Ring = In,
Sleeve = GND])
600 Phone jack
RETURN (L, R) -- 10 k 8 dBu (308 mV) +4 dBu (1.23 V) +24 dBu (12.3 V)
Lines (unbalanced)
600
2TR IN (L, R) -- 10 k 22 dBV (79.4 mV) 10 dBV (0.316 V) +10 dBV (3.16 V) RCA pin jack
Lines
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms
* Sensitivity : The lowest level that will produce an output of +4 dB (1.23 V), or the nominal output level when the unit is set to the maximum
level. (All level controls are at their maximum position.)
Output Specifications
Output Appropriate Max. before
Output Connectors Nominal Level Connector Specifications
Impedance Impedance clipping
Phone jack (impedance balanced [Tip
STEREO OUT (L, R) 150 10 k Lines +4 dBu (1.23 V) +20 dBu (7.75 V)
= HOT, Ring = COLD, Sleeve = GND])
EFFECT SEND (AUX Phone jack (impedance balanced [Tip
SEND*) 150 10 k Lines +4 dBu (1.23 V) +20 dBu (7.75 V) = HOT, Ring = COLD, Sleeve = GND])
CH INSERT OUT Phone jack (unbalanced [Tip = OUT,
75 10 k Lines 0 dBu (0.775 V) +20 dBu (7.75 V)
(CHs 1, 2) Ring = IN, Sleeve = GND])
REC OUT (L, R) 600 10 k Lines 10 dBV (0.316 V) +10 dBV (3.16 V) RCA Pin jack
Phone jack (impedance balanced [Tip
MONITOR OUT (L, R) 150 10 k Lines +4 dBu (1.23 V) +20 dBu (7.75 V)
= HOT, Ring = COLD, Sleeve = GND])
PHONES OUT 100 40 Phones 3 mW 75 mW Stereo phone jack
Where 0 dBu = 0.775 Vrms and 0 dBV= 1 Vrms
* The MG82CX feature is described first, followed by the MG102C feature in brackets: MG82CX (MG102C)
4
MG82CX/MG102C
Digital Effect Program List
No Program Parameter Description
1 REVERB HALL 1 REVERB TIME
Reverb simulating a large space such as a concert hall.
2 REVERB HALL 2 REVERB TIME
3 REVERB ROOM 1 REVERB TIME
Reverb simulating the acoustics of a small space (room).
4 REVERB ROOM 2 REVERB TIME
5 REVERB STAGE 1 REVERB TIME
Reverb simulating a large stage.
6 REVERB STAGE 2 REVERB TIME
7 REVERB PLATE REVERB TIME Simulation of a metal-plate reverb unit, producing a more hard-edged sound.
8 DRUM AMBIENCE REVERB TIME A short reverb that is ideal for use with kick drum.
9 KARAOKE ECHO DELAY TIME Echo designed for karaoke (sing-along) applications.
10 VOCAL ECHO DELAY TIME Echo suitable for vocals.
11 CHORUS 1 LFO Frequency Creates a thick sound by modulating the delay time.
The PARAMETER control adjusts the frequency of the LFO* that modulates the
12 CHORUS 2 LFO Frequency delay time.
A sweeping pitched effect.
13 FLANGER LFO Frequency The PARAMETER control adjusts the frequency of the LFO* that modulates the
delay time.
Phase modulation produces a cyclical phasing effect.
14 PHASER LFO Frequency The PARAMETER control adjusts the frequency of the LFO* that modulates the
delay time.
A wah-wah effect with cyclical filter modulation.
15 AUTO WAH LFO Frequency The PARAMETER control adjusts the frequency of the LFO* that modulates the
delay time.
16 DISTORTION DRIVE Adds a sharp-edged distortion to the sound.
* "LFO" stands for Low Frequency Oscillator. An LFO is normally used to modulate another signal, determining the modulation speed and
waveform shape.
5
MG82CX/MG102C
6
MG82CX/MG102C
7
MG82CX/MG102C
8
MG82CX/MG102C
CIRCUIT BOARD LAYOUT
MAIN8 JACK (MG82CX)
MAIN8 MAIN (MG82CX) MAIN10 JACK (MG102C)
MAIN10 MAIN (MG102C)
Bottom case assembly
DSP (MG82CX only)
DIMENSIONS
62.2
256.6
55.2
2
302.5
300
9
MG82CX/MG102C
PANEL LAYOUT
The following applies to both the MG82CX and MG102C. In cases where different features need to be described for each
model, the MG82CX feature will be described first, followed by the MG102C feature in brackets: MG82CX (MG102C).
Channel Control Section
Channels Channels Channels
1 and 2 3/4 and 5/6 7/8 (7/8 and 9/10)
(Monaural) (Stereo) (Stereo)
q MIC Input Jacks (CHs 1 to 5/6)
w LINE Input Jacks (CHs 1, 2)
e LINE Input Jacks (CHs 3/4 to 7/8 (CHs 3/4 to 9/10))
r LINE Input Jacks (CH 7/8, (CHs 7/8, 9/10))
t INSERT Jacks (CHs 1, 2)
y GAIN Control
u 80 Switch (High Pass Filter)
i COMP Control
o PEAK Indicator
!0 Equalizer (HIGH, MID, and LOW)
!1 EFFECT (AUX) Control
!2 PAN Control (CHs 1, 2)
PAN/BAL Control (CHs 3/4, 5/6)
BAL Control (CH 7/8 (CHs 7/8, 9/10))
!3 Level Control
q
w
e
r
t
y
u 80
i
o
!0
!1
!2
!3
MG82CX
10
MG82CX/MG102C
Master Control Section
q 2TR IN Jacks
w REC OUT (L, R) Jacks
e RETURN L (MONO), R Jacks
r SEND EFFECT (AUX) Jack
t STEREO OUT (L, R) Jacks
y MONITOR (L, R) Jacks
u PHONES Jack
i PHANTOM +48 V Switch
o RETURN Control
!0 POWER Indicator
!1 Level Meter
!2 2TR IN
· 2TR IN Switch
· 2TR IN control
!3 MONITOR/PHONES Control
!4 STEREO Master Control
q
w
e
r
t
y
u
i
o
!0
!1
!2
!3
!4
MG82CX
11
MG82CX/MG102C
DIGITAL EFFECT Rear Input/Output Section
* Only the MG82CX has digital effects.
DIGITAL EFFECT
q FOOT SWITCH Jack
w PROGRAM Dial
e PARAMETER Control
r ON Switch
t EFFECT RTN Control
Rear Input/Output Section
y POWER Switch
u AC ADAPTOR IN Connector
q
w
e
r
t
y
MG82CX u
12
MG82CX/MG102C
Jack List
Input and Output Jacks Polarities Configurations
MIC INPUT Pin 1: Ground
Pin 2: Hot (+) INPUT OUTPUT
Pin 3: Cold ()
LINE INPUT(CHs 1, 2) Tip: Hot (+)
STEREO OUT, MONITOR OUT, Ring: Cold ()
EFFECT (AUX)* Sleeve: Ground
Ring
INSERT Tip: Output
Ring: Input
Sleeve: Ground
Sleeve Tip
PHONES Tip: L
Ring: R
Sleeve: Ground
RETURN Tip: Hot
LINE INPUT Sleeve: Ground
(CHs 3/4 to 7/8 (CHs 3/4 to 9/10)) Sleeve Tip
* These jacks will also accept connection to monaural phone plugs. If you use monaural plugs, the connection will be unbalanced.
13
MG82CX/MG102C
GENERAL SCHEMATIC DIAGRAM
1. Processing Method of Wiring Assembly
AC (WH54770)
(a). Bundle three wires and fix them with the cord holder
(location: 300) at a position 20 mm away from the
component side of the circuit board.
(b). Incline the bundled wires in the direction of the
POWER switch.
Handle the wires carefully so that too much stress is
not applied to the connector terminals when inclining
the wires.
POWER switch
Incline the fixed wires in the
direction of the POWER switch.
20 mm
Cord holder
Location: 300
2. Processing Method of Jumper Leads
A B C
A
(a). Bend the jumper leads in the direction of the MIX cir-
cuit board.
(b). Bend back the jumper leads in the direction of the
JACK circuit board.
(c). After bending as mentioned above, press down the
jumper leads until the distance between their top end
and the MIX circuit board surface is 15 mm or less.
14
MG82CX/MG102C
B
(a). Bend the jumper leads to make an M-like figure.
(b). After bending as mentioned above, deal with the
jumper leads until the distance between their top end
and the MIX circuit board surface is 15 mm or less.
C
(a). Bend the jumper leads in the direction of the MIX cir-
cuit board.
A B
c
Heat-sink
b Bend the jumper leads to
make an M-like figure.
a
15 mm
MIX JACK
15 mm
MIX JACK
C
a
15 mm
MIX JACK
15
MG82CX/MG102C
DISASSEMBLY PROCEDURE
· MG82CX
1. Top Cover (Time required: About 7 minutes)
1-1 Remove all knobs. (Fig. 1)
1-2 Remove the fourteen (14) screws marked [160],
the screw marked [163A], the screw marked
[165], and nineteen (19) each hexagonal nuts and
washers marked [A]. The top cover can then be
removed. (Fig. 1)
* The window level is not a component of the
top cover. When replacing the top cover, re-
move the window level and install it to the new
top cover. (Fig. 1)
* When installing the top cover on the bottom
case assembly, tighten the screws in the order
shown in Fig. 1. (Fig. 1)
2. DSP Circuit Board, MAIN8 Circuit Board
(Time required: About 8 minutes each)
2-1 Remove the top cover. (See procedure 1)
2-2 Remove the two (2) screws marked [100] and the
screw marked [163B]. The MAIN8 circuit board
can then be removed. (Fig. 2)
Knob [160]
Screw tighten (1st)
[160]
Knob [A]
[160]
Top cover
[160] [160]
Screw tighten (2nd)
[163A]
Knob
[165] Screw tighten (latest)
Knob Window level
Bottom case assembly
16
MG82CX/MG102C
2-3 DSP Circuit Board
2-3-1 Reverse the MAIN8 circuit board and remove the
two (2) screws marked [80]. The DSP circuit board
can then be pulled out. (Fig. 2)
2-4 MAIN8 Circuit Board
2-4-1 Remove the spacer on the upper side of the
MAIN8 circuit board. The shield DSP can then be
removed from the MAIN8 circuit board.
2-4-2 Remove the knob joints and push buttons from the
MAIN8 circuit board.
* The knob joints and push buttons are not
components of the MAIN8 circuit board. When
replacing the MAIN8 circuit board, remove the
knob joints and push buttons and install them
on the new MAIN8 circuit board.
* When installing the MAIN8 circuit board, fit the
seven (7) claws on the bottom case assembly
to the MANI8 circuit board. (Photo 1)
Push button HPF Knob joint HPF
HPF
Knob joint VRS Knob joint VRS
VRS VRS
Push button HPF
Engagement points on the MAIN8 circuit board
Push button PFL
[100]
MAIN8 JACK
Push button PFL
Spacer
MAIN8 MAIN [163B]
Shield DSP
DSP
Bottom case assembly
[80]
17
MG82CX/MG102C
DISASSEMBLY PROCEDURE
· MG102C
1. Top Cover (Time required: About 7 minutes)
1-1 Remove all knobs. (Fig. 1)
1-2 Remove the fourteen (14) screws marked [160],
the screw marked [163A], and twenty (20) each
hexagonal nuts and washers marked [A]. The top
cover can then be removed. (Fig. 1)
* The window level is not a component of the
top cover. When replacing the top cover, re-
move the window level and install it to the new
top cover. (Fig. 1)
* When installing the top cover on the bottom
case assembly, tighten the screws in the order
shown in Fig. 1. (Fig. 1)
2. MAIN10 Circuit Board
(Time required: About 8 minutes)
2-1 Remove the top cover. (See procedure 1)
2-2 Remove the two (2) screws marked [100] and the
screw marked [163B]. The MAIN10 circuit board
can then be removed. (Fig. 2)
Knob [160]
Screw tighten (1st)
[160]
Knob [A]
[160]
Top cover
[160] [160]
[163A] Screw tighten (2nd)
Window level
Knob
Knob
Bottom case assembly
18
MG82CX/MG102C
2-3 Remove the knob joints and push buttons from the
MAIN10 circuit board. (Fig. 2)
* The knob joints and push buttons are not com-
ponents of the MAIN10 circuit board. When
replacing the MAIN10 circuit board, remove the
knob joints and push buttons and install them
on the new MAIN10 circuit board. (Fig. 2)
* When installing the MAIN10 circuit board, fit
the seven (7) claws on the bottom case assem-
bly to the MANI10 circuit board. (Photo 1)
Push button HPF Knob joint HPF
HPF Engagement points on the MAIN10 circuit board
Knob joint VRS Knob joint VRS
VRS VRS
Push button HPF
[100]
MAIN10 JACK
Push button PFL
MAIN10 MAIN [163B]
Bottom case assembly
19
MG82CX/MG102C
LSI PIN DESCRIPTION
YMW767-VTZ (X6055A00) CPU (SWL01B) DSP: ICM07
PIN PIN
NO. NAME I/O FUNCTION NO. NAME I/O FUNCTION
1 Vss - Ground 65 Vss - Ground
2 TESTN I Input for TEST 66 IOVDD - Power supply +3.3 V
3 PLLBPN I PLL bypass select 67 LBN/LWRN/PF6 O External memory lower-byte enable / Port F
4 PLLVDD - PLL Power supply +2.5 V 68 UBN/UWRN/PF7 O External memory upper-byte enable / Port F
5 CIN - Capacitor terminal for PLL 69 RDN/PF4 O External memory read enable / Port F
6 PLLVss - PLL Ground 70 MD00 I/O
7 TRSTN I 71 MD08 I/O
8 TMS I 72 MD01 I/O
JTAG input
9 TCK I 73 MD09 I/O External memory data bus
10 TDI I 74 MD02 I/O
11 TDO O JTAG output 75 MD10 I/O
12 XI I Crystal oscillator 76 MD03 I/O
13 XO O Crystal oscillator 77 Vss - Ground
14 Vss - Ground 78 MD11 I/O
15 VDD - Power supply +2.5 V 79 MD04 I/O
16 ICN I Hardware reset 80 MD12 I/O
17 ECSN I CPU I/F chip select 81 MD05 I/O
18 EWRN/PD5 I CPU I/F write enable / Port D 82 MD13 I/O External memory data bus
19 ERDN/PD4 I CPU I/F read enable / Port D 83 MD06 I/O
20 EA3/PD3 I 84 MD14 I/O
21 EA2/PD2 I 85 MD07 I/O
CPU I/F address bus / Port D
22 EA1/PD1 I 86 MD15 I/O
23 EA0/PD0 I 87 WRN/PF5 O
24 IOVDD - Power supply +3.3 V 88 Vss - Ground
25 ED0/PC0 I/O 89 VDD - Power supply +2.5 V
26 ED1/PC1 I/O 90 IOVDD - Power supply +3.3 V
27 ED2/PC2 I/O 91 MA17 O
28 ED3/PC3 I/O 92 MA16 O
CPU I/F data bus / Port C
29 ED4/PC4 I/O 93 MA15 O
30 ED5/PC5 I/O 94 MA14 O
31 ED6/PC6 I/O 95 MA13 O
32 ED7/PC7 I/O 96 MA12 O
33 Vss - Ground 97 MA11 O External memory address bus
34 IRQ0N/PH0 I Interrupt input / Port H 98 MA10 O
35 TxD0 O Serial output 99 MA09 O
36 RxD0 I Serial input 100 MA08 O
37 TxD1/PG2 O Serial output / Port G 101 MA07 O
38 RxD1/PH1 I Serial input / Port H 102 MA06 O
39 SCLK1/PH2 I External synchronization clock / Port H 103 MA05 O
40 SDO O Serial output 104 Vss - Ground
41 SDI/PH3 I Serial input / Port H 105 MA04 O
42 BCLK O Bit clock output 106 MA03 O
External memory address bus
43 WCLK/SYO O Word clock output 107 MA02 O
44 SYSCLK/PG3 O Clock output / Port G 108 MA01 O
45 Vss - Ground 109 CS0N/PG0 O External memory chip select / Port G
46 VDD - Power supply +2.5 V 110 MA18 O
External memory address bus
47 IOVDD - Power supply +3.3 V 111 MA19 O
48 PA0 I/O 112 MA21/PF1 O
External memory address bus / Port F
49 PA1 I/O 113 MA22/PF2 O
50 PA2 I/O 114 MA20 O External memory address bus
51 PA3 I/O 115 MA23/PF3 O External memory address bus / Port F
I/O port A
52 PA4 I/O 116 CSIN/PG1 O External memory chip select / Port G
53 PA5 I/O 117 MA00/PF0 O External memory address bus / Port F
54 PA6 I/O 118 Vss - Ground
55 PA7 I/O 119 VDD - Power supply +2.5 V
56 Vss - Ground 120 IOVDD - Power supply +3.3 V
57 PB0 I/O 121 CS2N/PE0 O
58 PB1 I/O 122 CS3N/PE1 O
59 PB2 I/O 123 CS4N/CASN/PE2 O
60 PB3 I/O 124 CS5N/PE3 O
I/O port B External memory chip select / Port E
61 PB4 I/O 125 CS50RDN/PE4 O
62 PB5 I/O 126 CS51WRN/PE5 O
63 PB6 I/O 127 CS52WRN/PE6 O
64 PB7/SYI I/O 128 CS53WRN/RASN/PE7 O
20
MG82CX/MG102C
AK5381VT-E2 (X5219A00) ADC DSP: ICM04
PIN NAME I/O FUNCTION PIN NAME I/O FUNCTION
NO. NO.
1 AINR I Rch Analog input pin 9 SDTO O Audio serial data output pin
2 AINL I Lch Analog input pin 10 LRCK I/O Output channnel clock pin
3 CKS1 I Mode select 1 pin 11 MCLK I Master clock input pin
4 VCOM O Common voltage output pin 12 SCLK I/O Audio serial data clock pin
5 AGND - Analog ground 13 PDN I Power down mode pin
6 VA - Analog power supply 14 DIF I Audio interface format pin
7 VD - Digital power supply 15 CKS2 I Mode select 2 pin
8 DGND - Digital ground 16 CKS0 I Mode select 0 pin
IC BLOCK DIAGRAM
NJM072BM-E-TE1 (X4543A00) BA4560RF-E2 (X6897A00)
NJM2068MD-T2 (X3505A00) MAIN8: IC102, IC103, IC105, IC151, IC152,
(MG82CX) IC301, IC351, IC352, IC401, IC451,
NJM4565M-TE (X7378A00) IC452, IC501, IC503, IC504, IC551,
MAIN8: IC101 (MG82CX) IC553, IC801, IC803, IC804, IC901
MAIN8: IC302, IC402 (MG82CX)
MAIN10: IC102, IC103, IC105, IC151, IC152,
DSP : ICM09, ICM11 (MG82CX)
(MG102C) IC301, IC351, IC352, IC401, IC451,
MAIN8: IC104, IC808 (MG82CX)
IC452, IC501-504, IC551-554,
MAIN10: IC101 (MG102C) IC801-804
MAIN10: IC302, IC402 (MG102C)
MAIN10: IC104, IC808 (MG102C) Dual Operational Amplifier
Dual Operational Amplifier
Output 1 1 +V 8 VCC
Output A +DC Voltage
1 +V 8 -Input 1 2 7 Output 2
Supply - +
Inverting
2 7 Output B +Input 1 3 6 -Input 2
Input A - + + -
Non-Inverting Inverting
3
+ -
6 VEE 4 -V 5 +Input 2
Input A Input B
-DC Voltage Supply 4 -V 5 Non-Inverting
Input B
LB1403N-E (XZ348A00) NJM4556AL (XP844A00)
MAIN8 : IC806, IC807 (MG82CX) MAIN8: IC805 (MG82CX)
MAIN10 : IC806, IC807 (MG102C) MAIN10: IC805 (MG102C)
LED Level Meter Dual Operational Amplifier
+
+
A B
- -
1 2 3 4 5 6 7 8
amp
OUT -IN +IN -V +IN -IN OUT +V
A A A B B B
1 2 3 4 5 6 7 8 9
VC1 VC2 VC3 VC4 GND VC5 Amp Out In VCC
21
MG82CX/MG102C
PCM1742KEG/2K (X3538A00)
DSP : ICM08 (MG82CX)
Digital to Analog Converter BCK 1 16 SCK
DATA 2 15 ML
LRCK 3 14 MC
DGND 4 13 MD
BCK 1
VDD 5 12 ZEROL/NA
Audio
LRCK 3 Serial
DAC
Output Amp and 7 V OUT L 6 11
Port Low-Pass Filter VCC ZEROR/ZEROA
VOUTL 7 10 VCOM
DATA 2 4x/8x
Oversampling Enhanced
Digital Filter Multilevel VOUTR 8 9 AGND
with Delta-Sigma 10 V COM
Function Modulator
ML 15 Controller
Output Amp and
Pin No. Pin Name I/O Function
Serial
MC Control
DAC R 1 BCK I Audio Data Bit Clock Input (1)
14 Low-Pass Filter 8 V OUT
Port 2 DATA I Audio Data Digital Input (1)
3 LRCK I L-Channel and R-Channel Audio Data Latch Enable Input (1)
MD 13
4 DGND - Digital Ground
5 VDD - Digital Power Supply, +3.3V
System Clock 6 VCC - Analog Power Supply, +5V
7 VOUTL O Analog Output for L-Channel
System Clock 8 VOUTR O Analog Output for R-Channel
SCK 16 Zero Detect Power Supply
Manager
9 AGND - Analog Ground
10 VCOM - Common Voltage Decoupling
12 11 5 4 6 9
11 ZEROR/ZEROA O Zero Flag Output for R-Channel/Zero Flag Output for L/R-Channel
12 ZEROL/NA O Zero Flag Output for L-Channel/No Assign
13 MD I Mode Control Data Input (2)
ZEROL
V DD
DGND
VCC
ZEROR
AGND
14 MC I Mode Control Clock Input (2)
15 ML I Mode Control Latch Input (2)
16 SCK I System Clock Input
Notes: (1) Schmitt-trigger input, 5V tolerant. (2) Schmitt-trigger with internal pull-down, 5V tolerant.
22
MG82CX/MG102C
CIRCUIT BOARDS
DSP Circuit Board (X7687D0) (MG82CX) ................................................ 23
MAIN8 (JACK) Circuit Board (X7686D0) (MG82CX) ............................... 24
MAIN8 (MAIN) Circuit Board (X7686D0) (MG82CX) ............................... 26
MAIN10 (JACK) Circuit Board (X7685D0) (MG102C) ............................. 28
MAIN10 (MAIN) Circuit Board (X7685D0) (MG102C) .............................. 30
Note: See parts list for details of circuit board component parts.
DSP Circuit Board (MG82CX)
to MAIN8 (MAIN)-CN901
Component side
Pattern side
2NA-WH10870- 4