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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
FEATURES
*Capable of controlling each function by serial data Electric volume *Volume level........... 32step ( 0dB ~ - ) *Low noise................-100dBv(JIS-A) Bass/Treble.......(0dB,3dB,16dB,10dB) Bass boost.......................(ON/OFF) Surround......................... (ON/OFF) Input selector ...................4 - Inputs (A,B,C,D) MIC mixing
PACKAGE
Outline 42P2R APPLICATION
Mini-Stereo,Radio-Cassette tape recorder,TV RECOMMENDED OPERATING CONDITIONS Supply voltage range ..... AVDD:7.0~8.0V Rated supply voltage ..... AVDD:7.5V DVDD:4.5~5.5V DVDD:5.0V
SYSTEM BLOCK DIAGRAM
MIC IN Rch Rec out
A R ch B IN C D A L ch IN B C D
INPUT SELECTER
MIC MIXER
BASS BOOST
SURROUND
R ch OUT L ch OUT
TONE
ELECTRIC VOLUME
-com INTERFACE
CLK DATA LATCH Lch Rec out
MITSUBISHI ELECTRIC
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
PIN CONFIGURATION
VREFI SUR R SUR C IN1A IN1B IN1C IN1D REC OUT1 INBAS1 NFBAS1 FBAS1 FTRE1 TONE OUT1 VOL IN1 FBB1 NFBB1 INBB1 OUT1 DGND LATCH DATA
1 2 3 4 5 6 7
42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
AGND VREFO MIC IN IN2A IN2B IN2C IN2D REC OUT2 INBAS2 NFBAS2 FBAS2 FTRE2 TONE OUT2 VOL IN2 FBB2 NFBB2 INBB2 OUT2 AVDD DVDD CLK
M62428FP
8 9 10 11 12 13 14 15 16 17 18 19 20 21
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
BLOCK DIAGRAM
21 21 -com INTERFACE 20 19 18
56K
CLK DVDD AVDD OUT2 INBB2 NFBB2 FBB2 VOL IN2 TONE OUT2 FTRE2 FBAS2 NFBAS2 INBAS2 REC OUT2 IN2D IN2C IN2B IN2A MIC IN VREFO AGND
22
DATA LATCH DGND OUT1 INBB1 NFBB1 FBB1 VOL IN1 TONE OUT1 FTRE1 FBAS1 NFBAS1 INBAS1 REC OUT1 IN1D IN1C IN1B IN1A SUR C SUR R VREFI
: :F
25
24
23
26
27
1.5K
SW19
+ -
10K
28
BASS BOOST SW
BASS BOOST SW
29
30
10K
31
32
22.5K 8.5K 3K
SW17-C
10K
SW16-C SW14-B SW14-C
10K
SW15-B SW15-C
1.5K + -
22.5K 8.5K 3K
33
BASS Amp2
56K
34
SW13
34.7K
SW12
34.7K
BASS Amp1
1.5K + -
56K
35
100K
44.7K
44.7K
44.7K
44.7K
36
SW9 SW7 SW5 SW3 19K
+ -
SW8 SW6
100K
37
100K
38
100K
39
SW13
SW13
AVDD
SW2
40
100K
MICAmp
ref
+ -
SURROUND SW
51K 51K AGND
41
42
refAmp
Units
Resistance Capacitance
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1
2
3
SW1
4
45.8K
45.8K
19K
100K
+
A B Buff Amp2 SW11
+
A
B
100K
SW10
5
SW4
100K
Buff Amp1
6
7
34.7K
34.7K
100K
MIX Amp2
MIX Amp1
+ -
8
9
+ -
10
11 12
24K 10K 4.5K
+ -
SW17-B
10K
195K
195K
SW16-B
24K 10K 4.5K
13
195K
195K
TONE Amp2
+ -
TONE Amp1
14
VR2
VR1
15
SW18
16
10K
FIN Amp2
+ -
FIN Amp1
BB Amp1
+
-
-
BB Amp2
195K
195K 1.5K
17
470 +
470
56K
MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
PIN DESCRIPTION
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
Symbol
VREFI SUR R SUR C IN1A IN1B
Channel 1 input RefAmp input
Function
External R connection pin for setting time constant for surround External C connection pin for setting time constant for surround
IN1C IN1D RECOUT1 INBAS1 NFBAS1 FBAS1 FTRE1
REC output of channel 1 Input of BASS Amp in bass section Output of BASS Amp in bass section Resonant impedance (band-pass filter) connection pin for bass section Resonant impedance (band-pass filter) connection pin for treble section
TONEOUT1 TONE output of channel 1 VOLIN1 FBB1 NFBB1 INBB1 OUT1 DGND LATCH DATA
R-rudder volume input of channel 1 Input of bass boosting resonant buffer amp Output of bass boosting resonant buffer amp Resonant impedance (band-pass filter) connection pin for bass boost section Channel 1 output Ground of the internal logic circuit Input pin of latch signal. Changes the circuit status at the rising edge of the latch signal Input pin of control data. Reads data at the rising edge of clock MITSUBISHI ELECTRIC
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
Pin No. 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
Symbol
CLOCK DVDD AVDD OUT2 INBB2 NFBB2 FBB2 VOLIN2 TONEOUT2 FTRE2 FBAS2 NFBAS2 INBAS2 RECOUT2 IN2D IN2C
Channel 2 input
Function
Clock input pin for serial data transfer Power supply of internal logic circuit Power supply of internal analog circuit Channel 2 output Resonant impedance (band-pass filter) connection pin for bass boost section Output of bass boosting resonant buffer amp Input of bass boosting resonant buffer amp R-rudder volume input of channel 2 TONE output of channel 2 Resonant impedance (band-pass filter) connection pin for treble section Resonant impedance (band-pass filter) connection pin for bass section Output of BASS Amp in bass section Input of BASS Amp in bass section REC output of channel 2
IN2B IN2A MIC IN VREFO AGND
Microphone input RefAmp output Ground of the internal analog circuit
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
ABSOLUTE MAXIMUM RATINGS
(Ta=25C,unless otherwise noted)
Symbol AVdd DVdd Pd K Topr Tstg
Parameter Analog supply voltage Digital supply voltage Power dissipation Thermal derating Operating temperature Storage temperature
Conditions
Ratings 9.0 7.0
Unit V V mW mW/C C C
Ta 25C Ta > 25C
990 9.9 -20~+75 -40~+125
THERMAL DERATING (MAXIMUM RATING) POWER DISSIPATION Pd (mW)
1000
990
800 600 400
630
200
0
0
25
50 60
75
100
125
AMBIENT TEMPERATURE Ta (C)
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
RECOMMENDED OPERATING CONDITIONS
(Ta=25C,unless otherwise noted)
Parameter Analog supply voltage Digital supply voltage Logic "H" level input voltage Logic "L" level input voltage Symbol Conditions
(Note 1 )
MIN 7.0
TYP 7.5 5.0
MAX 8.0 5.5
Unit V V
AVdd
(Note 1 )
DVdd
DVddAVdd
4.5
VIH
0.8DVdd
Vdd
V
VIL
0
0.2DVdd
V
Note 1:After applying AVdd,Apply supply voltages in the order of DVdd for the IC.
RELATIONSHIP BETWEEN DATA AND CLOCK
LATCH SIGNAL
H DATA L H CLOCK L H LATCH L
D0
D1
D6
D7
D0
Data signal is read at the rising edge of clock. Signal is latched at the rising edge of the latch signal.
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
CLOCK AND DATA TIMINGS
t cr CLOCK
75% 25%
tr
tf tWHC t WLC
75%
DATA
25%
tr
t SD
t HD
tf tr tSL
tWHL
tf
75% 25%
LATCH
TIMING DEFINITION OF DIGITAL BLOCK
Symbol t t t t
cr WHC WLC r
Parameter Clock cycle time Clock pulse width ("H" level) Clock pulse width ("L" level) Rising time of clock,data and latch Falling time of clock,data and latch Data setup time Data hold time Latch setup time Latch pulse width
MITSUBISHI ELECTRIC
Min 4 1.6 1.6
Limits typ
Max
Unit
0.4 0.4 0.8 0.8 1 1.6
sec
tf t t t t
SD HD SL WHL
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
DATA INPUT FORMAT
2 types of input formats can be selected by changing the D7 slot setting status. (Initialize all data of the 2 formats when power is turned on.) Input direction
Input format selection slot
(1)
DO1
D11
D21
D31
D41
* Refer to the slot setting code list (3) for master volume
D51 D61 Surround MIC MIX
1 : ON 0 : OFF 1 : Side A 0 : Side B
D7
0
D7
(2)
DO2
D12
D22
D32
D42
D52
D62
Through gain +10dB
* Refer to the slot setting code list (4) for tone control Bass boost SW18,19 ON/OFF
* Refer to the slot setting code list (5) for Input selector
1 : OFF 0 : ON
1
(3) Setting code (master volume)
Amount of ATT -0.0dB -2.0dB -4.0dB -6.0dB -8.0dB -10.0dB -12.0dB -14.0dB -16.0dB -18.0dB -20.0dB -22.0dB -24.0dB -26.0dB -28.0dB -30.0dB -32.0dB -34.0dB -36.0dB -38.0dB -40.0dB -42.0dB -44.0dB -48.0dB -52.0dB -56.0dB -60.0dB -64.0dB -68.0dB -72.0dB -76.0dB -
D01 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
D11 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
D21 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
D31 D41 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
(4) Setting code (bass*treble cut / boost and bass boost on / off)
D02 D12 D22 D32 0 0 0 1 1 0 0 1 1 1 0 0 0 1 1 1 1 1 0 0 1 1 0 1 1 1 1 0
cut
-3 dB -6 dB -10 dB 0 dB
boost

+3 dB +6 dB +10 dB
cut
-3 dB -6 dB -10 dB 0 dB
boost
+3 dB +6 dB +10 dB
D02 D12 D22 D32 0 0 0 0 0 0 0 1 0 1 0 0 0 1 1 0 0 1 0 0 0 1 0 1 0 1 1 0
D02 D12 D22 D32 bass boost ON bass boost OFF 1 1 1 1 1 1 1 0
(5) Setting code (input selector)
D42 D52
IN1A,2A IN1B,2B IN1C,2C IN1D,2D (SW2,3 ON) (SW4,5 ON) (SW6,7 ON) (SW8,9 ON) MITSUBISHI ELECTRIC
0 0 1 1
0 1 0 1
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
ELECTRICAL CHARACTERISTICS
(Ta=25C,AVdd=7.5V,DVdd=5.0V ,f=1kHz Tone control & Bass Boost setting :0dB , unless otherwise noted)
(1)Power Supply
Parameter
Analog supply circuit current
Symbol
AIdd
Conditions
With AVdd=7.5V, pin 24 current, when no signal is provided With DVdd=5.0V, pin 23 current, when no signal is provided
Limits typ Max Min 40 60
Unit
mA
Digital supply circuit current
DIdd
-50
0
50
A
(2)Input/Output
Parameter
Input impedance Maximum output voltage
Symbol
Rin VOM Vodc Vrecdc
Conditions
Pins 4,5,6,7 and 39,38,37,36,Ta=25C
(input to pin 4 and 39),(input to pin 5 and 38), (input to pin 6 and 37),(input to pin 7 and 36) Output from pin 18 and 25 ,RL=10K,THD=1% Difference in voltage between pin18,25-pin41, when no signal is provided Difference in voltage between pin 8,35-pin41, when no signal is provided Vin=0.5Vrms, Pin(4,39),(5,38),(6,37),(7,36)-(18,25) gains JIS-A filter Rg=10K When no signal is provided
Min 50 1.3 -0.1 -0.1 -2.0
Limits typ Max 100 1.8 0 0 0 3.0 0.1 0.1 2.0 200
Unit
K Vrms V V dB
Output terminal voltage
Pass gain
Gv Vono
Pin18,25 Pin 8,35
15.0 Vrms
Output noise voltage Vrecno THD Total harmonic distortion THDrec CS Channel separation CSrec
10.0 20.0 Vrms 0.02 0.02 -80 -80 0.10 0.10 -60 -60 % % dB dB
Pin 18,25, BW=400~30kHz Vi= 0.3Vrms , RL=10K Pin 8,35, BW=400~30kHz Vi=0.3Vrms, RL=30K Vo=0.5Vrms , Rg=0K Between pin 18-25 line ,JIS-A Vo=0.5Vrms , Rg=0K Between pin 8-35 line ,JIS-A
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
(3) MIC AMP characteristics
Parameter
Pass gain
Symbol
GvM
Conditions
Vin=0.5Vrms,FLAT, Pin 40 -18,25 gains Pin18,25 ,JIS-A filter ,Rg=10K ,FLAT When no signal is provided Input to pin 40, output from pin18,25, BW=400~30kHz Vi=0.3Vrms , RL=10K
Limits Min typ Max -2.0 0 2.0
Unit
dB
Output noise voltage
VNOM
-
3.0
15.0 Vrms
Total harmonic distortion THDM
-
0.02
0.1
%
(4) Tone control characteristics
Parameter
Tone control voltage gain(bass)
Symbol
Gbboost Gbcut Gtboost Gtcut 10dB
f=150Hz
Conditions
(input to pin 4 and 39), (input to pin 5 and 38), (input to pin 6 and 37), (input to pin 7 and 36), output from pin 13 and 30
Min 7 -13 7 -13
Limits typ Max 10 -10 10 -10 13 -7 13 -7
Unit
dB dB dB dB
-10dB 10dB
f=10kHz
Tone control voltage gain(treble)
-10dB
(5) Bass boost characteristics
Parameter
Bass boost voltage gain
Symbol
Gboost
Conditions
Input to pin 14 and 29 , output from pin 13 and 30 f=100Hz
Min 7
Limits typ Max 10 13
Unit
dB
(6) Volume characteristics
Parameter
Maximum attenuation
Symbol
ATTmav
Conditions
Input to pins 14 and 29 , output from pin 18 and 25 f=1kHz ,JIS-A filter ,ATT=-
Min -
Limits typ Max -83 -75
Unit
dB
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
TEST CIRCUIT
22 21 CLOCK DVDD=5V AVDD=7.5V OUT2
10 30K
DATA LATCH DGND
30K 10
-com INTERFACE
24
23
25
18
19
20
470 56K -
470 56K
OUT1
26
27
1.5K
10K
+ -
16
10K
0.1
SW19
28
15
SW18
BASS BOOST SW
3K
BASS BOOST SW
29
10
14
VR2
195K 195K 10K 24K 10K 4.5K 22.5K 8.5K 3K
VR1
31
0.047
+ -
SW17-B
10K
~
TONE Amp2
+ -
TONE Amp1
30
13
195K
SW16-B
SW17-C SW15-B
10K 10K
SW16-C SW14-B SW14-C BASS Amp1
32
0.12
SW15-C
11
22.5K 8.5K 3K
12
33
2200p 30K 10
1.5K + -
BASS Amp2
34.7K 34.7K
1.5K + -
10
34
9
56K
56K
35
100K
100K
REC OUT2
MIX Amp2
44.7K
MIX Amp1
44.7K 44.7K
+ -
8
36
100K
44.7K
SW9 SW7
+
SW8 SW6 SW4
+
37
10
100K
7
10
34.7K 34.7K
100K
38
10
100K
B
A
A
B
6
100K
100K
5
SW5
SW11
SW10
39
10
40
100K
10
41
51K
0.1
42
refAmp
AGND
AGND
1
51K
2
~
+
+ -
~
10
SW3
BuffAmp2 SW13
AVDD
BuffAmp1 SW12
SW2
4
19K
45.8K
45.8K
19K
3
SW1 MICAmp ref SURROUND SW
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-
+
3300p
BB Amp2
195K
195K
FIN Amp2
+ -
FIN Amp1
BB Amp1
17
+
1.5K
3300p 0.1 3K
10
195K 24K 10K 4.5K
~
0.047
0.12 2200p 30K 10
+ -
REC OUT1
10
10
10
10
~
0.022 20K
10
Units Resistance : Capacitance :F
MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
FUNCTION DESCRIPTION
(1) Tone controller equivalent circuit
R3 FBASS CENTER FREQUENCY C1 OUT BASS R1 Q = (C2*R2 )/ (C1*R1) f0 = 1 / 2 C1*C2*R1*R2 [Hz]
C2 INBASS EXAMPLE : BASS BAND ( f=150Hz ) R1=1.5K , R2=56K C1=0.82, C2=0.015 R2
Fig.1 A circuit equivalent to the inside of the tone controller
C1 Fig.2 is equivalent to Fig.1. To convert component constants, the equation below is used.
L
L=C2 *R1*R2 R3
Fig.2 An equivalent circuit using L
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
(2) Surround block equivalent circuit
CHANNEL1 INPUT 44.7K 44.7K 34.7K
EXTERNAL C
CHANNEL1 OUTPUT
34.7K
MIC INPUT
20K 34.7K 44.7K 44.7K CHANNEL2 OUTPUT 34.7K
CHANNEL2 INPUT
BAND-PASS FILTER REGULATING SURROUND
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MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
MASTER VOLUME EQUIVALENT CIRCUIT
10432 8274 6576 5216 4150 3292 7167 5700 4524 3591 2850 2268 1800 1428 1137 17586 4626 13968 11094 8814 7002 5562 4416 6297 3972 2505 1581 996 630 396 250.5 321.7
-0.0dB -2.0dB -4.0dB -6.0dB -8.0dB -10.0dB -12.0dB -14.0dB -16.0dB -18.0dB -20.0dB -22.0dB -24.0dB -26.0dB -28.0dB -30.0dB -32.0dB -34.0dB -36.0dB -38.0dB -40.0dB -42.0dB -44.0dB -48.0dB -52.0dB -56.0dB -60.0dB -64.0dB -68.0dB -72.0dB -76.0dB -
+ -
Reference values for mastervolume attenuation
Amount of ATT -0.0dB -2.0dB -4.0dB -6.0dB -8.0dB -10.0dB -12.0dB -14.0dB -16.0dB -18.0dB -20.0dB -22.0dB -24.0dB -26.0dB -28.0dB -30.0dB -32.0dB -34.0dB -36.0dB -38.0dB -40.0dB -42.0dB -44.0dB -48.0dB -52.0dB -56.0dB -60.0dB -64.0dB -68.0dB -72.0dB -76.0dB -
20040
D01 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
D11 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
D21 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
D31 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
D41 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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SIGNAL TRANSMISSION BLOCK DIAGRAM
+10dB 34.7K +6dB 10K - 6dB 10K VR1
SW12
19K
34.7K
IN1A
45.8K
IN1B VOL IN1
SW2
TONE OUT1
SW4 44.7K Cut(tre) SW10
MITSUBISHI ELECTRIC
Boost(bass) Cut(bass) Boost(tre)
SW16-B SW16-C
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AB
SW14-B SW14-C
22.5K 8.5K 3K 24K 10K 4.5K
IN1C
44.7K
OUT1
SW6
IN1D
SW8
10K SW18
Bass boost
MIC IN
56K 1.5K
56K 1.5K
M62428FP
MITSUBISHI SOUND PROCESSORS
DIGITAL SOUND CONTROLLER
100K
MITSUBISHI SOUND PROCESSORS
M62428FP
DIGITAL SOUND CONTROLLER
APPLICATION EXAMPLE
-COM 22 21 -com INTERFACE 20
DVDD=5V
Power AMP
23
Power AMP
24
10
19
10
AVDD=7.5V
25
470 56K
470 56K
26
1.5K
27
10K
10K
3K
28
BASS BOOST SW
15
1
SW19
16
+ -
SW18
BASS BOOST SW
29
195K
10 0.047
195K 10K 24K 10K 4.5K 22.5K 8.5K 3K
SW17-B
10K
TONE Amp2
+ -
TONE Amp1
+ -
195K 195K
14
VR2
VR1
30
SW16-B
31
SW17-C SW15-B
10K
SW16-C SW14-B SW14-C
10K
32
0.82
SW15-C
11
22.5K 8.5K 3K
12
24K 10K 4.5K
13
33
34
+ -
0.015
1.5K
BASS Amp2
34.7K 34.7K
BASS Amp1
1.5K + -
10
56K
56K
35
100K
100K
36
44.7K
44.7K
44.7K
SW9
100K
44.7K
10
100K
7
34.7K 34.7K
SW8 SW6 SW4
10
37
10
SOURCE2
100K
38
10
100K
100K
39
4
10
MIC AMP MIC VOL
SW3
100K + -
10
SW13
AVDD
40
SW2 SW1
MICAmp ref
3
SURROUND SW
0.022 20K
41
51K
42
refAmp
51K AGND
AGND
1
2
Units
Resistance : Capacitance :F
MITSUBISHI ELECTRIC
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CD
19K
45.8K
BuffAmp2
BuffAmp1 SW12
45.8K
+
+
+
SW5
5
SW11
SW10
10
19K
10
TUNER
100K
B
A
A
B
6
SW7
10
DECK
MIX Amp2
MIX Amp1
+ -
8
REC OUT2 10
9
-
0.033
+
-
BB Amp2
195K
195K
FIN Amp2
+ -
FIN Amp1
BB Amp1
17
18
+
1.5K
0.033 1 3K
10 0.047
0.82 0.015
10
REC OUT1
+ -

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