Yamaha DSP-AX1600 Service Manual page 106

A B C
RX-V1600/DSP-AX1600
SCHEMATIC DIAGRAM (INPUT 1/2)
1
Page 102 A4 Page 101 D2
to FUNCTION (2)_CB608 to FUNCTION (1)_CB308
2
0
0
0 0
0
0
0
0
0
0 0
3 INPUT
SELECTOR
Page 100 H2
to DSP_W502
ANALOG IN
4
RECOUT
0
SELECTOR
0
0
0
0
0
0
0
0
0
0
0
0
0
5
0
0
11.7
0
0 0
0 0
6
0
-11.7
12.0
0
0 0
0 0
0
-11.8
7
12.0
0
0
0
0 0
-11.8
0
12.0
0
0
0
8
0 0
0 -11.8
9
10
# All voltages are measured with a 10MΩ/V DC electronic volt meter.
# Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
# Schematic diagram is subject to change without notice.
106
D E F
-11.8
12.1
0
0
0 0 0
0
0
0
0
0
0 0
0
0 0
12.0
0
0 0
0
0
0
-11.8
0
0
-6.1
0
0
6.0
0
0
0
0
0
0
Page 102 B5
to FUNCTION (2)_CB603
Page 102 L5
to FUNCTION (2)_CB609
INPUT (1)
G H I
Page 101 F2 Page 101 F3
to FUNCTION (1)_CB309 to FUNCTION (1)_CB310
0 0
0 0
0 0 -11.9
12.2
0 0 0 0
0
0
0 0 0 0
0 0 0 0
0 0 0 0 0
0
INPUT
SELECTOR
/
RECOUT
PROHIBITION
RECOUT
SELECTOR
0 0
0 0
0
0
0 -6.1
0 0
6.1
0
0 0
0 0
0
0
0
0
0 0
0
0 0
0 0
0
0
0 0
0
0
0
0
0
0
0
0 0 6.1
-6.1
0.7 0.7
0 0 -6.1
0 6.1
0
0.7
0.7 0
0
0
0
0
0
T-CON
0
0 0 0
0
0.7
0.7
0 0 4.6
6.1
0
0
0.7
0.7 -6.1
-6.1
0 0
6.1
4.6
0
0
0
IC301: NJU7312AM IC302: NJU7313AM
Analog function switch Analog function switch
L1 2 29 R1 L1 2
L2 3 28 R2 L2 3
L3 4 27 R3 L3 4
L-COM1 R-COM1 L4
5 26 5
L-COM1
L4 6 25 R4 6
L5 7
L5 7 24 R5
L6 R6 L6 8
8 23
L-COM2 R-COM2 L-COM2 9
9 22
L7
L7 R7 10
10 21
L8
L8 11 20 R8 11
L-COM3
L-COM3 R-COM3 12
12 19
ST DATA ST 14
14 17
Control Circuit
Control Circuit
V
V DD 30
DD 30 16 CK
V V EE 1
EE 1 15 Vss
J K L
INPUT (5)
INPUT (4)
Page 105 H2
to POWER (7)_CB324
12.2
12.2
11.9
11.5 12.2
11.5
0.1
4.8
0
12.2
12.2
11.8
11.5 -12.1
0.1
4.9
0
Page 103 F3
to OPERATION (3)_CB907
0 0
0
0
5.0 5.1 0
Page 102 L4
0 0
to FUNCTION (2)_CB607
0
0
0
0
0
0
6.1
0.1
-6.1
-1.0
0
6.1
4.9
6.1
6.1
EVOL
0
0
0
0
0.1
-6.1
-1.0
0
0
6.1
4.9
6.1
6.1
INPUT (3)
INPUT (2)
IC303, 309: BD3841FS
Function Switch
29 R1
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
28 R2
27 R3
LOGIC
R4
26
25 R-COM1
24 R5
23 R6
22 R-COM2
21 R7
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
R8
20
19 R-COM3
F-SW1: INPUT FUNCTION 1
*
17 DATA F-SW2: INPUT FUNCTION 2
16 CK
15 Vss
M N
IC310, 311: YAC526-EZE2
2ch high grade digital volume LSI
IN1 100 ohms
0 ~ -95dB
OUT1
Vol B:
0 ~ +31.5dB
10 k-ohms OPAmp
REF1B
REF1A
Vol A:
15 k-ohms
Zero TE1
Crossing
AVDD TE2
Detector
TE3
DGND
ZCEN1
Control
REF ZCEN2
Register
SDATAO(OpenDrain)
AVSS S/P
Zero SDATAI
DVSS Crossing 16 Register SCLK
Detector
CSN
Vol A:
15 k-ohms
REF2A
REF2B
Vol B:
0 ~ +31.5dB
10 k-ohms 100 ohms
OUT2
0 ~ -95dB
IN2
OPAmp
IC312, 313: LC75348M
Single-Chip Electronic Volume and Tone Control System
4 3 2 1 30 29 28 27
5 26
LOUT
ROUT
LBASS2 RBASS2
6 25
7
24
LBASS1 RBASS1
8 23
LTRE RTRE
9 22
LIN RIN
10 21
RSELO
LSELO
11 12 13 14 15 16 17 18 19 20
IC304~308: NJM2068MD-TE2
Dual OP-Amp
OUT 1 8 +V
1 CC
–IN 1 2 7 OUT 2
+ – + –
+IN 3 6 –IN
1 2
–V CC 4 5 +IN
2