Yamaha DSP-A595a Manual de serviço - Página 22

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A
B
C
DSP-A595a
SCHEMATIC DIAGRAM (DSP)
TO INPUT(3) CB354
page E-50/J-48 N-8
1
Q Q
3
7
2
DIGITAL
IN
5
Point
4.9
Pin 13 of IC3
0.2
V : 2V/div
H : 50nsec/div
12
3
8
AC range
1 : 1probe
4.9
0
9
10
0
0
0
0
0V
2V
SAMPLE
50ns
4
6
Point
Pin 13 of IC14
0
V : 2V/div
H : 50nsec/div
0
0
AC range
1 : 1probe
4.9
4.8
4.8
0V
0
4.9
2V
SAMPLE
50ns
5
IC1 : NJM2904M
T
E
IC8~13 : uPC4570G2
L
1
3
Dual OP AMP
A OUT
V+
6
A –IN
B OUT
A +IN
B –IN
V–
B +IN
0
4.9
0
0
4. 9
IC2 : HD74HC02FPEL
Quad 2 Input NOR
0
14
13
12
11
10
9
8
7
0
0
0
4.9
1
2
3
4
5
6
7
0
• IC3: YM3436DK
→See page E-25/J-23
• IC4: YSS918D-F
→See page E-26/J-24~E-28/J-26
• IC5: M5M51288BKJ-20LTEL
→See page E-29/J-27
8
• IC6: AK4526A-VQ
→See page E-30/J-28
• IC7: AK4320
→See page E-29/J-27
• IC14: LC875164A-5K20
→See page E-23/J-21~E-24/J-22
9
w w w
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC's.
NJM2904M
1SS355
2SC3326(A,B)
UPC29M33T-E1
HD74HC02FPEL
10
uPC4570G2
DTA144EKA
DTC144EKA
Anode
Cathode
E-53/J-51
D
E
F
6
3
1
5
4.9
0
8
3
2
0
0
4
0
14
13
5
0
7
0
6
7
0
0
3. 1
2. 4
2. 4
2. 9
0
2. 3
0. 9
4. 6
0. 1
0
3.1
0
0
0
0
0
0
DIR
0
0
0
0
0
0
0
0
0
4.8
2.3
2.3
5
2
2.3
2.3
1
3
9
4
2
2
9
6
5
1
3
~
~
4.4
~
~
DSP
CONTROL
4.9
~
0
4.9
4.9
4.9
4.9
4.9
6
4.9
TO INPUT(1) CB106
page E-50/J-48 I-8
x
a
o
.
i
AK4526A-VQ
AK4320-VM-E1
M5M51288BKJ-20LTEL
LC875164A-5K20
13
24
12
http://www.xiaoyu163.com
G
H
1
5
0
0
2.4
DSP + DOLBY DIGITAL/
2.4
0
PRO-LOGIC/DTS DECODER
0
1.4
2.4
2.4
2.4
3.1
0
YSS918D-F
4.7
4.7
Q
Q
3
RAM
3.3
0
u
1
6
3
y
YSS918D-F
http://www.xiaoyu163.com
I
J
K
8
9
2
4
4.8
4.8
2.4
4.8
4.8
2.4
7
0
0
2.4
2.4
2.4
0
2.4
ADC/DAC
0
2.4
2. 4
2.4
2. 4
2.4
0
2.4
2.4
2.4
2.4
0
0
1
0
1. 4
2.4
2.4
2.4
2.4
2.4
2. 8
0
2.4
0
0
0
2.4
MUTING
4.7
4.6
0.6
DAC
0
0
- 11.2
0
0
0
0
0
0
-11.2
- 11.2
0
0
0
0.6
4. 8
0
0
0
4 .9
0
2. 3
4 .9
4. 9
2 .4
2. 4
2 .4
7
6
3
1
5
1
5
0
8
~
2 .4
2. 4
0
0
4 .8
0
0
0
4. 8
0
- 11.2
0
0
0.5
0
- 11.2
-11.2
0
0.2
0.2
0
0. 5
0.2
4.8
4.8
0
0
0
0
0.5
MUTE
0
DRIVE
- 11.2
0
0
- 11.2
0
0
- 11.2
0
0
- 11.2
0
m
c
o
.
L
M
N
9
8
2
9
9
AK4526A-VQ
AK4526VQ
L.P.F
11.8
6
8
6
7
2.4
2.4
5
2.4
MAIN L
2.4
5
2.4
-11.7
(DSP)
11.8
3
2.4
8
3
2
1
2.4
2.4
2
-11.7
2.4
2.4
DSP AMP
0
11.8
0
0
0
0
0
MAIN
0
L
0
0
-11.7
0
9
2
4
9
8
2
9
9
11.8
0
0
0
FRONT L
0
0
-11.7
0
CENTER
11.8
0
0
0
REAR L
0
0
-11.7
0
Conditions
All voltages are measured with a 10M Ω /V DC electric volt meter.
→ CD
• INPUT
Components having special characteristics are marked
→ minimum(–∞)
• VOLUME
must be replaced with parts having specifications equal to those
• IMPEDANCE
→ Upper
originally installed.
SELECTOR
• PRO LOGIC → On
Schematic diagram is subject to change without notice.
and