Yamaha HTR-5170, Руководство по обслуживанию

Страница: 46 / 70

RX-V795a/RDS/HTR-5170/DSP-R795a
A B C D E F G H I J K L
1
2
3
4
5
6
7
8
* All voltage are measured with a 10M
Ω
/DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
E-69/J-59
■
SCHEMATIC DIAGRAM (OPERATION)
OPERATION
IC202 :
µ
PC4570HA
Dual OP-Amp
IC251~253, 257, 258 :
µ
PC4570G2
Dual OP-Amp
IC201 : NJM2068LD
Dual OP Amp
–IN
1
2
+IN
1
3
–V
CC
4
+IN
2
5
–IN
2
6
OUT
2
7
+V
CC
8
OUT
1
1
–
+
–
+
V O1
2
–Vm 1
3
+Vm 1
4
V EE
5
+Vm 2
6
–Vm 2
7
V O2
8
V CC
9
V CC
1
1
– + – +
2
IC254 : LB1641
Motor Driver
IC255, 256 : TC9299P
Electric Controlled Volume
IC351 : TC74HCU04AP
Hex Inverters
IC352 : HD74HC00P
Quadruple 2-input Positive NAND Gates
IC353 : HD74HC153P
Dual 4 to 1 Data Selectors
REAR L
MAIN
DIGITAL IN
CENTER
0.3
0
0
0
4.8
0
4.3
4.8
0
4.3
4.8
0
11.3
0
0
0
0
0
-11.3
11.3
0
0
0
11.3
0
0
0
-11.3
0
0
0
11.3
11.5
0
0
0
-11.4
0
0
0
11.5
0
0
0
0
0
0
-11.4
0
0
0
-11.3
0
0
0
-11.3
11.3
0
0
0
0
0
0
-11.3
0
0
0
0
4.8
0 0
4.3 4.8
0
0
0 0.3
4.8
4.8
0
4.8
4.8
0
4.3
0 0
0
4.8
3.1 2.5
4.8
4.8 4.8 0 0 0 0 0
0
4.9 4.3 4.3 4.8
0
4.8
0
0 0 0 0 0 0 0 -11.3
0 0 0 0 0 0 0
11.3
0 0 0 0 0 0 0 11.3
0 0
11.3
0 0 0 0
11.3
0
0.1
2.0
0.1
0
4.8
0.5 0.7 1.2
0
4.5 4.5
10.4
10.4
0.7 0.5
SPEAKER SETTING CONTROL
SPEAKER LEVEL CONTROL
MOTOR DRIVE
VOLUME AMP
DIGITAL SELECTOR
CIRCUIT CHANGES BY MARKET.
P-E66/J56
E-1
P-E67/J57
to VIDEO
(1)
G-8
P-E65/J55
B-1
P-E70/J60
A-5
P-E71/J61
A-4
P-E66/J56
G-1
P-E66/J56
C-8
: NOT USED
3
2
8
1
6
5
4
7
1
8 3
6
5
4
7
6
5
4
7
2
1
8
3
2
6
4
7
5
6
2
3
8
1
2
3
8
1
4
7
5