Yamaha RX-Z1 Service Manual page 87

A B
SCHEMATIC DIAGRAM (FUNCTION)
1
to VIDEO (3) Page 108 from DSP
J5
PHONO EQ AMP
11.0
0 5 8
7 0
0 6
2
0 2
1 0
0 3
4
-11.0
0 2 41 0
0 3 40 0
0 4 39 0
0 5 38 0
0 6 37 0
0 7 36 0
3 0 8 35 0
0 9 34 0
0 10 33 0
0 11 32 0
0 12 31 0
0 13 30 0
0 14 29 0
0 15 28 0
0 16 27 0
0 17 26 0
0 18 25 0
19 24
0 2 41 0
0 3 40 0
0 4 39 0
0 5 38 0
0 6 37 0
0 7 36 0
0 8 35 0
0 9 34 0
4
0 10 33 0
0 11 32 0
0 12 31 0
0 13 30 0
0 14 29 0
0 15 28 0
0 16 27 0
0 17 26 0
0 18 25 0
19 24
11.3
0 5 8
7
6 0
0
2
0
1
5 3
0
4
0
-11.3
11.3
5
0 8
7
6
0
0
2
0
1
3 0
4
0
-11.3
11.3
5
0 8
7
6
0
0
2
0
1
3
6 0
4
0
-11.3
11.3
5
0 8
7
6
0
0
0 2
1
3
0
4
0
-11.3
MUTE
11.3
8 3 0
0.4
1 0
0
4.8
2
-11.3
0 0
0
7 -11.3
6 0
0 7
5 0
0.4
4
-11.3
to VIDEO (5) Page 108 to VIDEO (5)
C2
8
9
C D E
# All voltages are measured with a 10MΩ/V DC electric 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.
Page 103 from DSP Page 103 to DSP Page 103 to DSP Page 103
K7 K8 K6 K4
LEVEL CONTROL
0
L
11.3
0 4 5 0 5
8
0
0 7
0 3
6
0 0 4.9
0 2
0
0 1
5.0
0
30 4.9
0
0
0
29
2 4.9
0 28
0 1
26 0
0 27 3 0
0 0 4
-11.3 0
CENTER
5.1
11.3
0 0 2 0
3 0 7 8
8
1 4.9
1 0
6
0 0 0 3
0 0 0 0
2
5.0
25 0
-4.9
-11.3 0 0 0
23 24
4.9
0
4.9
11.3 5.1
0
0 10 11 2 8
1
0
9
0 3 0
0 0
-4.9
11.3 0
3
0 8
4.9
1
2 0
0
0
5.0
6
0 22 20
0 7
0
21 0 5 0
4.9
0 0 4
-11.3 0
4.9
5.1
REAR CENTER
6 0 0 0
0
7
0 5
0
4 0
-11.3
4.9
-4.9 FRONT L
0
5.0
0
4.9
0
0 0.1 4.9
22 21
0
23 20
0.1 REAR L
5.1
0
10 11 6
7
9 0 0
-11.4 -11.3 5
0
42 1 0 0 4 0 0
-11.3 4.9
-4.9
0
5.0
0 0.1
22 21
0
0
23 20
0.1 5.1 4.9
11.3
0
6
0 22 0 8
7
4.9
21 20 5
0 0
0 0 0
-11.4 -11.3
42 1
-4.9
0 0
0 0
11.4 0
-11.3
11.4
5.0
4.3 0
0
4.9
3.7 0
4.3
4.9
0
4.9
0
0.7
5.0
5.0
5.0
4.4 1.4
0
0
4.9 0.5
-11.4
5.0
4.9
ZONE 2 VOLUME
11.3 4.9
5.0
5.5
5.5
0.1
0
0
12.3
0.7
8.2
0 8.2
0
Page 108 from TUNER
to SUB TRANS (6) Page 109 from SUB TRANS (1) Page 109
C3
D8 E1
F G
to VIDEO (3) Page 108 to VIDEO (4) Page 108
J4 A6
11.4
5
8
7
0
6
0
5.1 0
-4.9
4
0
0 3 0
0
2 0
-5.0
1 0
5.0
0 0
30
0 29 0
27
28 0
0
5.1
-4.9 2
1
0
3 0
4
0
-11.4
0
0
0
-5.0
5.0
11.4
0
3
0 5 8
0 1
0 0
6 2
-11.4 0
0
0 7 8 0 2
4 0
1
3
0
0
11.4
3
0
8
1
2 0
0 0 5 0
7
0
0 24 22 0 6
0
0 8 6
0 25
0 7
-5.0 11.4
0 26 5
0
5.0
0 4
0 -11.4
0
0
0
0
0
-5.0
5.1
5.0
11.5
5.0
0
0
5.7
0 4.9
11.4
3
8
1
0
-11.4
2 0
0 -11.3
0
0
-11.3
4.9
-4.9
0
-4.9
0
0
-5.0 -11.4
6
-5.5
5.0
7
0
0 5
4 0
0 0
-11.4
0
4.9
4.9
4.9
0
0
5.0
0.1
MAIN µ-COM 4.9
3.7
4.9
4.8
0.1
4.9
0
4.9
4.9 4.9
5.0
4.9
4.9
0 0.1
5
0
5.0
0
5.0
0
4.9
4.8 4.8
0
RS-232C
INTERFACE
6
5.0 0
A 0 9.3
13.0 13.0
0 -9.5
5.7 5.7 4.9
B 4.9 -4.7
0
0.7 4.9
12.9 5.7 5.0 -9.0 0
4.8
0 9.7
0.1
5.0 7.4
0.7
8.9
0.1
0
0
0
Point 5 Pin 13 of IC27
H I
11.5
11.5
11.5
4.9
4.8
L
6
7
0
5
0
0 4
-11.4
4.9
4.9
0
4.7 0
4.7 4.8
0
0
5.0
4.4
-11.4
-11.4
5.0
4.4
-11.4
-11.4
5.0
4.4
-11.4
-11.4
5.0
4.4
-11.4
-11.4
0
5.0
4.4
0 0
0
-11.4
0 0
-11.4
0
0.1
11.4 11.4
0
0.1
11.1
10.8 11.4
4.9
0.1
4.9
0
0
3
J K L
RX-Z1/DSP-AZ1/DSP-AX1UG
IC1: NJM2068MD
IC4~IC8, IC10, IC12~IC15: µPC4570G2
IC22~IC26: µPC4570G2
Dual OP-Amp.
OUT 1 8 +V
1 CC
–IN 1 2 7 OUT 2
+ – + –
+IN 3 6 –IN
1 2
–V 4 5 +IN
CC 2
IC2, 3: TC9274N-XXX
Analog Function Switch
1 VSS VDD 42
2 S1 S1 41
3 S2 S2 40
4 S3 S3 39
5 S4 S4 38
6 S5 S5 37
S6 S6
7 36
8 S7 S7 35
9 S8 S8 34
10 S9 S9 33
11 S10 S10 32
12 S11 S11 31
13 S12 S12 30
S13 S13
14 29
15 S14 S14 28
16 S15 S15 27
S16 S16
17 26
18 S17 S17 25
19 24
20 GND STB 23
CK DATA
21 22
IC11: LC78211
Analog Function Switch
L1 1 30 R1
L2 2 29 R2
3 28
L3 R3
L4 4 27 R4
5 26
LCOM1 RCOM1
L5 6 25 R5
L6 7 24 R6
LCOM2 8 23 RCOM2
L7 9 22 R7
L8 10 21
R8
11 20 RCOM3
LCOM3
19
V DD LEVEL SHIFTER
16
V SS
14 D1
LATCH ZZ
12
V EE
15
18 ZZ CL
RES
SHIFT REGISTER
17
S ZZ 13 CE
IC16~IC20: CS3310-KS
Stereo Digital Volume Controller
AINL 16 +
14 AOUTL
–
MUX
8 MUTE
8
8
1 ZCEN
2 CS
Control
AGNDL 15
Register
16
AGNDR 10 3 SDATAI
8 Serial to
Parallel 7 SDATAO
Register
8 6 SCLK
x: NOT USED
O: USED / APPLICABLE MUX
–
11 AOUTR
+
AINR 9
12 13 4 5
VA+ VA- VD- DGND
IC28: AN78N05
Voltage Regulator
Output Pass Transistor Rsc
0
Excessive Electric
Current Protection
0
+
Standard
Amp.
Voltage
–
Heat
Protection
Starter
Circuit
1 2 3
IC31: ADM202JRN-REEL7
RS-232 Driver/Receiver
+5V → +10V
C1+ 1 16 Vcc
Voltage Boost
C1– 3 Circuit 2 V+
C2+ 4
+10V → –10V
6 V–
C2– Voltage Inverter
5
T1in 11 T1 14 T1out
T2in 10
T2 7 T2out
R1in
12 R1 13 R1out
R2in 9 8
R2 R2out
GND
15
Point 6 emitter of Q7
and collector of Q8
A Q7 E
B Q8 C
POWER ON POWER OFF
(Connect the power cord) (Disconnect the power cord)
104