Yamaha HTR-5280 - AV Receiver - 5.1 Channel, Service Manual

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A
1
2
3
4
5
6
7
8
9
B C D E F G H I J K L
RX-V800/RX-V800RDS/HTR-5280/DSP-AX8
E-68/J-64
SCHEMATIC DIAGRAM (POWER)
★ All voltage 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.
IC354: NJM78M05FA
Voltage Regulator
IC1: LC72722
RDS Decoder
+
REFERENCE
VOLTAGE
57kHz
bpf
(SCF)
CCB
TEST
PLL
(57kHz)
ANTIALIASING
FILTER
SMOOTHING
FILTER
RAM
(24 BLOCK DATA)
ERROR CORRECTION
(SOFT DECISION)
SYNC/EC
CONTROLLER
SYNC
DETECT-1
DATA
DECODER
CLOCK
RECOVERY
(1187.5Hz)
MEMORY
CONTROL
OSC/DIVIDER
VREF
CLK(4.332MHz)
SYNC
DETECT-2
VDDA
VSSD
VDDD
RDS-ID
SYNC
SYR
VSSA
MPX IN
DO
CL
DI
CE
T1
T2
T3
T4
T5 T6 T7
X IN
VREF FL OUT C IN
X OUT
3 14
15
19
18
24
1 5 6
4
2
20
21
22
23
7
8
9
10
11 16 17 13 12
IC351: NJM7812FA
IC353: NJM7805FA
Voltage Regulator
IC352: NJM79M12FA
IC355: NJM79M05FA
Voltage Regulator
COMMON
OUTPUT
INPUT
INPUT
OUTPUT
COMMON
V
OUT
V
IN
GND
x: NOT USED
O: USED / APPLICABLE
240V 1-2/5-6
220V 2-3/6-7
110V 3-4/7-8
120V 4-5/8-1
VOLTAGE SELECTOR
REGULATOR
POWER RELAY
E-62/J-58
C8
E-62/J-58
C8
E-62/J-58
D8
E-62/J-58
H8
E-66/J-62
I6
AC
13.2
13.1
0
0
0
0.7
17.1
-17.3
0
0
12.0
-12.0
8.6
8.4
-9.2
0
0
0
5.0 5.0
-4.8
AC
29.4
AC
16.3
0
-17.7
0
17.7
-0.1
-9.7
-0.1
9.2
E-67/J-63
I7