Yamaha RX-Z11 - AV Receiver, Service Manual

Page: 175 / 243

W701 W703 W702
IC71
IC74
CB71
IC72
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-Z11/DSP-Z11
175
★ All voltages are measured with a 10M Ω /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.
AVIDEO 3/3
0 0
2.0
4.2
4.2 2.8 2.8 6.2 2.0
13.7
20.5
2.1
0.6
0.8
20.5
5.0
5.0
7.0
4.2
2.5
0
2.5
20.5 20.5
2.0
0 0
4.3 4.3
7.0
20.5 20.5 20.5 20.5
9.3 5.3
5.0
9.3
20.5
4.9
4.9
4.3 5.3
0 3.7
2.0
2.0
20.5 20.5
0
4.2 2.5 2.0
2.8
2.8
20.5 20.5
0 4.0 3.4 2.8
1.1 0 0
13.6 13.6
20.5
2.1
0.7
3.3
5.0
3.7
0
4.3
0.8
2.1
2.1
0.7
20.5
5.0
5.0
7.0
4.0
2.8
0
3.4
20.5 20.5
0 0
6.3 6.3
7.7
20.5 20.5 20.5 20.5 11.2
0.6
5.0
11.2
20.5
4.9
4.9
6.3 6.6
0 3.2
1.1 1.2 0 0
13.7 13.7
20.5
2.1
0.8
3.3
5.0
3.2
0
6.3
0.8
1.8 20.5
20.5
0
6.8
0
3.7
13.7 20.5
0
5.0
4.9
5.0
1.8
1.2
AVIDEO 1/3
AVIDEO 2/3
1
3
2
5
4
GND
V
CC
IC72 : TC7SZ02FU
2-input NOR gate
IN A
IN B
OUT Y
IC71, 74 : BD9011EKN-E2
Dual synchronous DC/DC converter controller
31
30
28
27
29
24
10 32
25
26
21
19
20
12 18
Slope
UVLO
Q Q
Q Q
Reset Reset
Reset
Sequence DET
Sequence DET
Reset
Set Set
Set Set
PWM
COMP
PWM
COMP
VREGS
ErrAmp ErrAmp
2.7V
0.8V 0.8V
0.56V 0.56V
OCP
UVLO
5V Reg
VREG5
VCCCL2
CL2
BOOOT2
OUTH2
OUTL2
DGND2
FB2
SS2
COMP2
DET2 EN2 EN1 GND DET1
COMP1
DGND1
OUTL1
OUTH1
BOOT1
CL1
VCCCL1
LLM
VREG33
SYNC RT VCC STB EXTVCC
VREG5A
SW1
SS1
FB1
LOFF
SW2
3.3V Reg
OCP
TSD
UVLO
TSD
UVLO
DRV
SW
LOGIC
Slope
14 11 9
7
8
6
2
3
4
1
36
35
34
33
17
5
13
Set
Reset
Set
Reset
DRV
SW
LOGIC
TSD OSC
SYNC
TSD
B.G
15 16 22
AVIDEO (3)
No replacement part available.
サービス部品供給なし
No replacement part available.
サービス部品供給なし
to DSP_CB502
Page 159 B3
to DVIDEO (1)_CB622
Page 176 G7
to POWER (3)_CB63
Page 169 D5