Yamaha HTR-5230, Service Manual

Page: 50 / 76

A
1
2
3
4
5
6
8
DSP-R396/RX-V396/RX-V396RDS/HTR-5230/HTR-5230RDS
B C D E F G H I J K L
7
E-61/J-57
■
SCHEMATIC DIAGRAM [INPUT (2/2)]
★ All voltages are measured with a 10M
Ω
/V DC electric volt meter.
★ Components having special characteristics are marked and
must be replaced with parts having specifications equal to those
originally installed.
★ Schematic diagram is subject to change without notice.
Conditions (RX-V396RDS)
• INPUT
→
CD
• VOLUME
→
minimum(–
∞
)
• IMPEDANCE
SELECTOR
→
Left
• PRO LOGIC
→
On
A OUT
A –IN
A +IN
V–
V+
B OUT
B –IN
B +IN
IC401~403 : uPC4570C
Dual OP-Amp
IC102 : LC78213
Analog Function Switch IC103 : LC78212
Analog Function Switch
1
2
3
4
30
29
28
27
5
6
7
8
26
25
24
23
9
10
11
22
21
19
16
12
14
18
15
17
13
20
L1
L2
L3
LCOM1
L4
L5
L6
LCOM2
L7
L8
LCOM3
V
DD
Vss
V
EE
RES
S
R1
R2
R3
RCOM1
R4
R5
R6
RCOM2
R7
R8
RCOM3
D1
CL
CE
LEVEL SHIFTER
LATCH
SHIFT RESISTER
CONTROL,
REAR L
DIGITAL IN
MAIN L
CENTER
LFE
4.8 0 0 0 0 0.3 0.3 0
0
0
0.3
0.3
0.7
0.7
0.5
0.5
1.7
10.7
1.7
0 0
0
2.5
0 0
0
3.1
3.1
4.8
0
0
0
0 -12.0
0
0
0
11.7
0
0
0 -12.0
0
0
0
11.7
0
0
0 -12.0
0
0
0
11.7
0
0
10.7
4.9
4.9
21.0
-21.6
0
0
0.3
4.8 4.8
4.8
0
0
0
0 0
4.0
4.1 0.3
4.8
AC
33.9V
0
32.0
-32.5
0
AC50.6V
AC9.9V
OPTICAL
SIGNAL
DETECTOR
VOLUME AMP
MOTOR DRIVE
POWER SUPPLY
DIGITAL
INPUT
SELECTOR
EXT.DECODER
INPUT
OPTICAL
COAXIAL
OPTICAL
T
O
INPUT(1)
W102
page E-60/J-56
E-1
W102
T
O
INPUT(1) #4
page E-60/J-56
G-1
T
O
DSP #1
page E-63/J-59
#1
#4
VOLUME
B-1
T
O
OPE(5) #11
page E-64/J-60
H-6
#11
W721
FR
OM PO
WER
TRANSFORMER
TO
OPE(1)
W502
page
E-62/J-58
H-7
1
OUT1
2
–
IN1
3
+IN1
4
–
Vcc
5
+IN2
6
–
IN2
7
OUT2
8
+Vcc
+
–
+
–
IC108,109 : M5220L
Dual OP-Amp
IC352 : HD74HC153P
Dual 4 to 1 Data Selectors
INPUTS
SELECT STROBE
Y
H: High Level
L: Low Level
X: Don't care
L
C0
C1
C2
C3
G
H
L
L
L
L
A
X
L
H
L
H
B
X
L
L
H
H
OUTPUTS
IC351: TC74HCU04AP
Hex Inverters
2A 3
1Y 2
1A 1
2Y 4
3A 5
3Y 6
Vss 7
14 V DD
11 5A
12 6Y
13 6A
10 5Y
9 4A
8 4Y
IC404 : LB1641
Motor Driver
IC101 : LC78211
Analog Function Switch
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
M5220L 1SS133
1SS176
HSS104
Anode
Cathode
HZS5C2TD
HZS11B2TD 2SC2878(A,B)
E
C
B
LC78211
LC78212
LC78213 BU2090
HD74HC153P
2SA893A(D,E)
DTA144ES
E
C
B
TC74HCU04AP
uPC4570C
uPC4570HA
9
LB1641
10
IC105,106 : uPC4570HA
Dual OP-Amp