Yamaha RX-V4600/DSP, Service Manual

Page: 90 / 144

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-V4600/DSP-AX4600
SCHEMATIC DIAGRAM (OPERATION 2/2)
90
★
All voltages are measured with a 10M
Ω
/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.
-0.2
-0.2
15.0
0
0
6.9 6.9
22.7
7.1
7.5 7.5
7.5 3.3
3.3
7.1
7.1 22.7
1.3 6.8
0
0
0
0
5.0
8.8
-20.0
12.1
22.7
10.7
9.8
0
0
7.5
3.4 3.6
-13.4
0.3
-0.3
19.0
AC 30.2
AC 20.2
AC 17.8
AC 7.4
OPERATION (8)
WD403100
O : USED / APPLICABLE
X : NOT USED
P
a
ge 92
to PO
WER (3)_W122
D8
P
age 100 to IBOC_CB3
B8
P
age 99
to DU
AL_HDMI_CB305
J8
P
a
ge 97
to DU
AL_1394_CB6
H8
P
a
ge 89
to OPERA
TION (1)_W901
A3
to PO
WER
TRANSFOMER
to PO
WER
TRANSFOMER
+
–
+
–
1 2
3
V
OUT
5
ON/OFF
4
Oadj
V
IN
V
REF
COM
Voltage
regulator
Over current
protection
circuit
Over heat
protection
circuit
ON/OFF
circuit
Soft
start
Oscillator
ERROR AMP.
PWM COMP.
F/F
Q
S
R
IC460 : PQ1CG2032FZ
Voltage Regulator
IC461 : PQ3RD23
Voltage Regulator
1 Vin 2 Vo
4 Vc
3
GND
Specific IC
IC464 : PQ05RD11
Voltage Regulator
1 Vin 2 Vo
4
Vc
3
GND
Control circuit
IC462 : NJM7809FA
Voltage Regulator
INPUT
OUTPUT
COMMON