Yamaha RX-Z11 Service Manual page 175

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