Yamaha DSP-A595a Instrukcja serwisowa - Strona 24

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A
B
C
DSP-A595a
SCHEMATIC DIAGRAM (MAIN)
1
Q Q
REGULATOR
3
7
29.4
12.8
13.4
0
MAIN POWERAMP
2
0.6
0
MUTE
0.6
0.6
0
0
0
-11.6
-41.7
-42.5
0
-41.7
3
MAIN
L
0.6
0
MUTE
0.6
0.6
0
0
0
-11.6
-41.7
-42.5
4
0
-41.7
REAR
POWER AMP
REAR L
5
MUTE
0.6
0.6
0
0
0
-11.6
-42.5
T
E
-41.7
L
1
3
0
-41.7
6
MUTE
0.6
0.6
0
0
-11.6
0
7
-41.6
-42.5
0
-41.6
CENTER
CENTER
POWER AMP
8
MUTE
0.6
0.6
0
0
-11.6
0
-41.6
42.5
0
-41.6
9
w w w
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC's.
1SS133
HZS242TD
D5SB20
2SC1740S(R,S)
2SA893A(D,E)
2SC2229(O,Y)
10
1SS176
HZS302TD
2SA970(GR,BL)
2SC2240(GR,BL)
HSS104
2SA1015(Y)
2SC2878(A,B)
1SS270A
2SC1815(Y)
1T2
2SC1890A(D,E)
HZS12C2TD
Anode
B
C
E
Cathode
E
C
B
E-51/J-49
D
E
F
6
3
1
5
MAIN POWER AMP
43.5(30.2)
1.0
43.5(30.2)
0.5
1.0
0.5
0
-0.5
-1.1
0
-0.6
-0.6
0
-1.1
-43.5
(-30.3)
0
1.1
-43.5
MAIN
(-30.3)
L
-42.3
43.5(30.2)
1.0
43.5(30.2)
0.5
0.5
1.0
0
-0.5
-1.1
0
-0.6
-0.6
0
-1.1
-43.5
1.1
(-30.3)
0
-43.5
(-30.3)
REAR POWER AMP
-42.3
43.5(30.2)
1.0
43.5(30.2)
0.5
1.0
0.5
0
-0.4
-1.1
0
0
9
4
2
2
9
6
5
1
3
-0.6
0
-0.6
-1.1
-43.5
(-30.3)
1.1
-43.5
(-30.3)
-42.3
43.5(30.2)
1.0
43.5(30.2)
0.5
0.5
1.0
0
-0.4
-1.1
0
0
-0.6
-0.6
-1.1
-43.5
0
(-30.3)
-1.1
CENTER
-43.5
(-30.3)
CENTER POWER AMP
-42.3
43.5(30.2)
1.0
43.5(30.2)
0.5
0.5
1.0
0
-0.5
-1.1
0
0
-0.6
-0.6
0
-1.1
-43.5
-1.1
(-30.3)
-43.5
(-30.3)
-42.3
x
a
o
.
i
2SA1708(S,T)
2SA1492(O,P,Y)
NJM7812FA
NJM79M12FA
2SA1695(O,P,Y)
2SC4488(S,T)
NJM78M05FA
2SC3856(O,P,Y)
2SC4468(O,P,Y)
1.OUTPUT
1.COMMON
2.COMMON
2.INPUT
3.OUTPUT
3.INPUT
B
C
E
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G
H
1
5
0
43.5
43.4
0
MAIN L
43.3
0
0
RELAY
DRIVE
43.3
0
0
20.3
0.1
0.1
0.6
0
-42.5
-29.8
43.3
-30.2
0
0
0
Q
Q
3
REAR L
43.3
0
RELAY
0
DRIVE
20.4
0.1
20.3
0.1
0.7
0.1
43.3
0
0
0
CENTER
u
1
6
3
y
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I
J
K
8
9
2
4
OUTPUT
R
MAIN
L
SPEAKERS
L
A
R
L
B
R
PHONES
B
A
SPEAKERS
7
6
3
1
5
1
5
0
8
OUTPUT
POWER SUPPLY
L
43.5
(30.2)
REAR
(SURROUND)
R
-43.5
(-30.3)
CENTER
SPEAKERS
L
REAR
(SURROUND)
R
CENTER
-11.8
-19.5
0
m
c
o
.
L
M
N
MAIN (1),(2),(5),(6)
MAIN (3),(4),(7),(8)
9
8
2
9
9
6
C751 752
8200/56
8200/56
8200/56
(V317930)
(VV95180)
(VV95180)
:NOT USED
:NOT USED
9
2
4
9
8
2
9
9
29.4
AC68.4
AC48.0
IMPEDANCE
SELECTOR
23.9
29.3
24.6
0
0
-24.2
-29.7
-23.6
5.0
9.5
11.9
18.8
0
0
REGULATOR
All voltages are measured with a 10M Ω /V DC electric volt meter.
Conditions
→ CD
• INPUT
Components having special characteristics are marked
→ minimum(–∞)
• VOLUME
must be replaced with parts having specifications equal to those
• IMPEDANCE
originally installed.
→ Upper
SELECTOR
Schematic diagram is subject to change without notice.
• PRO LOGIC → On
and