Yamaha HTR-5170, Руководство по обслуживанию

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RX-V795a/RDS/HTR-5170/DSP-R795a
A B C D E F G H I J K
1
2
3
4
5
6
7
8
■
SCHEMATIC DIAGRAM (INPUT)
E-66/J-56
* 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.
INPUT
(This waveform is not available by pushing the power switch ON and OFF.)
Disconnect the power cord
from the AC outlet. With the POWER ON, dis-
connect the A/C power cord.
Reconnect the A/C power
cord and the above wave-
forms will start.
0V
Point
e
(Pin3 of IC21)
V : 2V/div H : 50 nsec/div
DC range 1 : 1 probe
Point
r
CH1 : Pin1 of IC21
CH2 : Pin29 of IC21
H : 0.5 sec/div DC range 1
: 1 probe
V : 2V/div (CH1)
V : 2V/div (CH2)
FRONT L
REAR R
MAIN L
MAIN L
CENTER
4 3
4
00
0
0
4.9
11.3
-11.5
11.6 11.6
0 0
0 0 0
-11.5
11.6 11.6
0 0
0 0 0
-11.5
4.7
2.0
4.8
4.9
4.9
0
0
4.9
0
0
4.9
4.9
0
4.8
0
4.9
0
0
1.2
0
0.3
0
0.2
0.7
-11.4
0
0
11.2
0
0
0
0 0 0 0
0 0 0
0 0 0
0 0 0 0
0 0 0 0 0 0 0
0
0
0
0
0
11.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0 0
0
0
0
0
0
-22.2
0.1
0.1
0.1
0
0
0 0
0.3 0.3
0
21.8
0
0 0
0
0
0
0 0
0
21.8 0 0 0
0
-22.2
0 0
0
0
0
-22.2
0
-11.5
0
-11.1
0
4.9
0
0
4.9
0
0.3
0
4.9
0
0
4.9
0
4.9
0.1
4.9
4.9
4.9
0
1.2
0.3
1.4
0
4.9
4.5
2.2
4.7 4.9 4.9 4.7 4.9
4.9
0 0
0
0
4.9 4.9
0
4.9 4.9
0
4.9
4.9 4.9 0 0 0 0 0
4.9
4.9 0 0 4.9 4.9 4.5
4.9
4.7
4.9
11.6 11.6
0 0
0 0 0
PHONO MM EQ AMP
INPUT SELECTOR
TAPE MONITOR
P-E69/J59
TO VIDEO(1)
C-2
P-E67/J67
D-8
P-E65/J55
B-8
P-E68/J58
H-2
P-E71/J61
: NOT USED
: USED
CIRCUIT CHANGES BY MARKET.
A-5
P-E69/J59
A-5
P-E69/J59
I-3
P-E65/J55
J-4
P-E72/J62 (J,U,C,A,L,R,T models)
P-E73
(B,G models)
H-5
8
1
3
2
6
5
4
7
5
6
8
7
2
3
4
1
1
7
4
5
6
8
3
2
2
3
6
5
7
8
4
1
5
3
2
1
8
6
4
7
3
6
5
4
7
2
1
8
IC21