Yamaha RX-V1800 Service Manual page 124

A B C
RX-V1800/HTR-6190/DSP-AX1800
FUNCTION 3/4
1
-11.3
0
0
2
0 0 0
0
IC300
0
0
3 0
0
to FUNCTION 4/4
4
PRESENCE L
SURROUND
BACK L
SUBWOOFER
CENTER
5
SURROUND L
Page 121 D1
to DSP_CB561
FRONT L
6
CB300 to FUNCTION 4/4
7
to FUNCTION 4/4
8 FUNCTION (2)
9
# All voltages are measured with a 10MΩ/V DC electronic voltmeter.
# 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.
10
124
D E F
-11.3
11.8
11.8 11.8
6.5
7.1
0 0.1
0.1
7.1
0 0.1
0.1
0
-6.1
6.5
11.8
0
0
0 0 0
0 0
IC302
0
0
0
0
0
0
-6.1
6.5
-6.1
IC300
-6.1
6.5
0
6.5
0
0
0.1
0 0
0.1 0
0
0 IC302
0.1
0
0
-11.3
-6.1
0 IC301 0
0 0 E-VOLUME
11.8
0 0
0
0
0 IC304
0
IC301
-6.1
6.5
0
0.2
0
0 E-VOLUME
IC304
0.2
0.1
0
0 0.2
-11.3
0.2
0.2
0.2
0.2
11.8
0 6.5
0
0 0 -6.1
IC305
0 0
0
IC301
0
0 0
0 IC305
0
0
-11.3
11.8
0
0 0 0.1
IC306
0.1
0.1
IC300
0 0.1
0
0 IC306
0.1
0.1
-13.3
IC300: NJU7312AM IC301: NJU7311AM
Analog function switch Analog function switch
L1 2 27 R1 L1 2
L2 3 26 R2 L2 3
L-COM1 4
L3 4 25 R3
L-COM1 5 24 R-COM1 L3 5
V EE 1 30 V DD
L4 6 23 R4 L1 2 29 R1 L4
6
L2 3 28 R2
L3 4 27 R3
L5 7 22 R5 L-COM2 7
L-COM1 5 26 R-COM1
L4 6 25 R4
L6 8 21 R6
L5 7 24 R5 L5 8
L6 8 23 R6
L-COM2 9 20 R-COM2 L-COM2 9 22 R-COM2 L6 9
L7 10 21 R7
L8 11 20 R8
L7 10 19 R7 L-COM3 10
L-COM3 12 19 R-COM3
NC 13 18 NC
L8 11 18 R8
ST 14 17 DATA L7 11
V 15 16 CK
SS
L-COM3 12 17 R-COM3
L-COM4 12
ST 13 16 DATA
ST 13
CONTROL
V CK
DD 28 15 V DD 28
V EE 1 14 V SS
V EE 1
G H
0
-6.5
-6.5
-11.3
11.8
0.1
IC309
0.1
0
0.1
0
4.7
0
0
0
0
-1.0
IC301
-6.1
0
6.3
0
0
0
0
0
0
0.1 IC309
0.1
0.1 -11.3
11.8
0
IC310
0
0
0
0
0
0
0
0
IC310
0
0 0
0
0
-11.3
0
0
0
0
11.8
0
0 IC311 0
0
0 IC311
0
-11.3
11.8
0
IC312
0
0
SUBWOOFER
0.1 IC312
0.1
0.1
-11.3
IC309-312: UPC4570G2-E1-A
IC302, 304-306: NJM2068MD-TE2
Dual operational amplifier
Dual operational amplifier
27 R1
OUT +V
26 R2 1 CC
1 8
25 R-COM OUT 1 8 +V CC
1 –IN OUT
1 2 7 2
+ – + –
24 R3
–IN 1 2 7 OUT 2
+IN 1 3 6 -IN 2
+ – + –
R4
23
+IN 3 6 -IN
1 2
–V CC 4 5 +IN 2
22 R-COM2
–V 4 5 +IN
CC 2
21 R5
20 R6
19 R-COM3
18 R7
17 R-COM4
16 DATA
CONTROL
15 CK
14 Vss
I J K
-11.3 11.8
0 0
0 0
FRONT L
0.2 0.2
-11.2 -11.2
0 0
0 0
-11.2 -11.2
0.2 0.2
0 0
0 0
0 0
0 0
0 0
0 0
SURROUND L IC313
0.2
IC313
0.2
0 0
0 0
-11.2 -11.2
0 0
0
0
0 0
0 0
0 0
-11.2 -11.2
0.2
0.2
SURROUND
BACK L
0.2
0.2
-11.2 -11.2
0 0
0 0
-11.2 -11.2
0.2 0.2
CENTER
0.2 0.2
-11.2 -11.2
0 0
0 0
-11.2 -11.2
0.2 0.2
to FUNCTION 4/4
IC307: YAC526-EZE2
IC313: NJU7313AM
2-chnnel high grade digital volume LSI Analog function switch
L1
IN1 100 ohms
L2
0 ~ -95dB OUT1
Vol B:
10 k-ohms 0 ~ +31.5dB L3
OPAmp
REF1B L4
REF1A
Vol A:
15 k-ohms L-COM1
Zero TE1 L5
AVDD Crossing TE2
Detector TE3
ZCEN1 1 24 IN1
DGND ZCEN1 L6
Control ZCEN2 ZCEN2 2 23 REF1A
REF
Register
SDATAO(OpenDrain) CSN 3 22 REF1B L-COM2
AVSS
S/P SDATAI
Zero SDATAI 4 21 OUT1
Crossing 16 Register SCLK
DVSS L7
Detector CSN DGND 5 20 AVDD
REF 6 19 AVSS
L8
DVSS 7 18 AVSS
Vol A:
15 k-ohms SCLK 8 17 AVDD
REF2A L-COM3
REF2B
SDATAO 9 16 OUT2
ST
TE1 10 15 REF2B
Vol B: 0 ~ +31.5dB
100 ohms TE2 11 14 REF2A
10 k-ohms V DD
OUT2 TE3 12 13 IN2
0 ~ -95dB
IN2
OPAmp V EE
L M N
W3004
Page 128 M9
to POWER (3)_CB20
Page 126 E3
to OPERATION (3)_CB806
W301B
to FUNCTION 4/4
CB303
Page 127 C9
to MAIN (1)_W273
to FUNCTION 4/4
Page 137 L7
to FL (3)_CB951
CB301
Page 137 M7
to FL (3)_CB956
IC308: YAC523-EVR2
Digital volume
CB302
IN1 3
0~95dB
100
+
OPA OUT1
34
–
REF1B 25
0~+31.5dB
REF1A 24
VolA: 30kohm
IN2 4
0~95dB
100
+
OPA 33 OUT2
–
REF2B 23
0~+31.5dB
REF2A 22
VolA: 30kohm
IN3 5
0~95dB
+ 100
OPA 32 OUT3
–
REF3B 21
0~+31.5dB
REF3A 20
VolA: 30kohm
IN4 6
0~95dB
100
+
OPA OUT4
31
–
REF4B 19
0~+31.5dB
REF4A 18
VolA: 30kohm
Zero Crossing CH1, 2, 3, 4 Control
Zero Crossing Detector
Zero Crossing
Zero Crossing Detector
Detector 45 TE1
Detector
TE2
44
39 ZCEN2
AVDD
2
38 ZCEN1
DGND 46 Control
Register
REF 47 43 SDATAO (OD)
SDATAI
2 27 R1 AVSS 1 S/P 41
Register 42 SCLK
56
3 26 R2 Zero Crossing 40 CSN
Detector Zero Crossing
Zero Crossing
Detector CH5, 6, 7 Control
4 25 R3 Detector
VolA: 30kohm
REF5A 17
5 24 R4
0~+31.5dB
REF5B 16
R-COM1 + 100
6 23
0~95dB OPA 20 OUT5
–
7 22 R5
IN5
7
8 21 R6
VolA: 30kohm
REF6A 15
9 20 R-COM2 0~+31.5dB
REF6B 14
100
10 19 R7 +
0~95dB OPA 19 OUT6
–
11 18 R8
IN6 8
12 17 R-COM3 VolA: 30k ohm
REF7A 13
0~+31.5dB
13 16 DATA
REF7B 12
CONTROL
+ 100
28 15 CK 0~95dB OPA 18 OUT7
–
1 14 Vss
IN7 9