Yamaha DRX-2 Service Manual page 156

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DRX-2
I SCHEMATIC DIAGRAM
ANALOG: Multi Sound Processing (MSP)
1
2
A
8SW
5SW
3601
SCLSW
100R
3603
SDASW
100R
B
2607
56p
I607
2609
C
SIF1
56p
D
for NAFTA only
2624
3604
ARDAC
I627
100R
2u2 50V
2625
3605
I629
ALDAC
100R
2u2
50V
1960
2626
I630
E
F6001
3606
1
DVAR
F6002
1K0
2
2u2
50V
GND
3
GND
2627
I631
F6004
3607
4
DVAL
1K0
2u2 50V
PH-B
for DVIN only
F
I623
A: D D C, 1 1 V V /Div
1 1 00us/Div
1
2
156
U, A models
3
4
GND
I602
*
7600
MSP3425G
18
10
5V
I615
12
I2C_CL
I616
5V
13
QFP44
I2C_DA
14
I2S_CL
15
I2S_WS
16
I2S_DA_OUT
17
I2S_DA_IN1
21
I2S_DA_IN2
FM1
I606
1.5V
3
ANA_IN-
FM2
NICAM A
DEMODULATOR
I608
1.5V
2
ANA_IN+
NICAM B
IDENT
IDENT
43
MONO_IN
A/D
SCART-L
I618
3.8V
41 SC1_IN_R
SCART-R
A/D
I619
3.8V
40 SC1_IN_L
3.8V
38 SC2_IN_R
3.8V
37
SC2_IN_L
I620
I621
25
29
35
39
44
GND
GND
I618/I619
A: D D C, 1 1 V V /Div
1 1 00us/Div
3
4
5
6
7
8SW
GND
I601
GND
I603
I604
7.6V
0V
0V
2.6V
5.9V
8
9
4
42
33
34
RESETQ
I2SL/R
S1...4
I2SL/R
DACM_R
D/A
LOUDSPEAKER R
LOUDSPEAKER
DACM_L
LOUDSPEAKER L
D/A
DFP
HEADPHONE R
HEADPHONE L
SC1_OUT_R
SCART-R
D/A
SC1_OUT_L
SCART-L
D/A
SCART
Switching Facilities
NC
20
23
24
28
32
1
7
5
2.3V
5SW1
5V
1600
I610
5SW
HC-49/U
18M432
I613
5601
I612
5602
10u
10u
GND
GND
GND
5
6
7
8
9
5SW
3600
10K
5SW1
GND
GND
GND
I614
11
STBYQ
5.1V
I605
19
DVSUP
5V
I617
GND
22
5.1V
I632
26
2.1V
27
GND
3613
100R
2612
GND
GND
I609
36
AGNDC
3.8V
4u7
2610
10n
GND
3.8V
3611
30
100R
I623
3612
31
3.8V
100R
GND
GND
GND
GND
6
2.2V
*
VERSION TABLE
Pos. 7600
NAFTA
I611
APAC
TAIWAN
ALL OTHERS
S. KOREA
MSP3425G
MSP3415G
MSP3425G
GND
8
9
1600 F7
1960 E1
2600 A6
2601 A6
2602 A7
2603 A7
2604 A9
2605 F5
2606 B8
2607 C2
A
2608 C9
2609 C2
2610 D8
2611 A8
2612 D8
2616 E8
2617 E8
2618 E9
2619 E9
2620 F7
2621 F7
B
2623 F6
2624 D2
2625 D2
2626 E2
2627 E2
2630 C9
2631 C8
3600 A8
3601 B2
3602 B9
3603 B2
3604 D1
C
3605 D1
3606 E2
AMCO
3607 E2
3611 D9
3612 E8
3613 C8
4601 A5
5600 A8
5601 F5
5602 F6
6600 B9
7600 A3
D
F6001 E1
F6002 E1
F6004 E1
I601 A7
I602 A4
AFER
I603 A6
I604 A7
AFEL
I605 B8
I606 C3
I607 C2
I608 C3
E
I609 D8
I610 F7
I611 F7
I612 F5
I613 F6
I614 B8
I615 B3
I616 B3
I617 B8
I618 D2
I619 D2
I620 E2
F
I621 E2
I623 E8
I627 D2
I629 D2
I630 E2
I631 E2
I632 C8

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