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Yamaha DSP-A595a Manual

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10
DSP-A595a
B
C D
E F
G H I J K L M
N
★
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.
■ SCHEMATIC DIAGRAM (DSP)
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
M5M51288BKJ-20LTEL LC875164A-5K20
AK4320-VM-E1
1SS355
AK4526A-VQ
YSS918D-F
NJM2904M
uPC4570G2
UPC29M33T-E1
HD74HC02FPEL
2SC3326(A,B)
DTA144EKA
DTC144EKA
Anode
Cathode
12
13
24
Conditions
• INPUT → CD
• VOLUME → minimum(–∞)
• IMPEDANCE
SELECTOR → Upper
• PRO LOGIC → On
E-53/J-51
IC1 : NJM2904M
IC8~13 : uPC4570G2
Dual OP AMP
IC2 : HD74HC02FPEL
Quad 2 Input NOR
A OUT
A –IN
A +IN
V–
V+
B OUT
B –IN
B +IN
1B
1A
1Y
2Y
2A
2B
GND
Vcc
4A
4B
4Y
3Y
3B
3A
1234567
14 13 12 11 10 9 8
Point 5
Pin 13 of IC3
V : 2V/div H : 50nsec/div
AC range 1 : 1probe
2V SAMPLE 50ns
0V
Point 6
Pin 13 of IC14
V : 2V/div H : 50nsec/div
AC range 1 : 1probe
2V SAMPLE 50ns
0V
• 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
• 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
FRONT L
REAR L
DIGITAL
IN
MAIN L
(DSP)
MAIN
L
CENTER
3. 1
0
0
0
4.9
0
4.9
0
0
0
2. 4
2. 4
2. 9
0
0
0
4.7
2.4
2.4
2.4
0
2.4
2.4
0
0
3.1
4.9
0
0
4.7
2.3
2.3
0
0
2.3
1.6
0
3.1
0
3.1
4.9
4.9
4.9
2. 3
0. 9
4. 6
0. 1
0
3.1
0
0
0
0
0
0
0
0
0
0
0
0
2. 4
2. 4
0
0
0
1. 4
0
0
4. 7
0
4.9
0
0
0
0
0
0
0
0
0
0
4. 9
4.9
0
0
0
0
4.9
0
0
4.9
4.8
4.8
0
4.9
2.42.4
2.4
2.4
2.9
2.3
4.9
0
2.4
2.4
0
0
1.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
4.7
2.4
4.7
4.6
2.3
0.9
0.1
0
0
3.1
0
0
4 .9
4.8
2.4
2.4
11.8
2.4
2.4
2.4
2.4
2.4
-11.7
-11.7
11.8
2.4
2.4
2.4
0
0
0
0
0
0
0
0
0
11.8
0
0
0
-11.7
0
0
0
11.8
0
0
0
-11.7
0
0
0
0
- 11.2
- 11.2
0
0
-11.2
0.2
0.2
0
0.5
0. 5
0.50
4.8
4.8
0
0
0
0.2
0
0
0
- 11.2
- 11.2
0
0
0
0
- 11.2
- 11.2
0
0
0
0
- 11.2
- 11.2
0
0
-11.7
0
11.8
0.6
0.6
0
2.4
2.4
2.4
4.8
2.4
4.8
4.8
2.4
2.4
2.4
0
0
0
2.4
2.4
2.4
0
0
0
4 .9
2 .4
2 .4
2 .4
0
4 .8
0
0
0
4. 8
0
00
4.7
0
4.6
-11.2
0
0
0
0
2. 3
4. 9
2. 4
2. 4
0
0
4. 8
0
4.9
4.9
0
2.3
0
4.8
4 .8
2.4
4.4
0
4.9
4.9
~
0
4.9
4.9
4.9
4.9
4.9
4.9 3.3
0
0
0
0
0
0
0
0
0
0
2.1
4.9
4.9
0
4.8
2.3
2.3
4.7
4.7
1.0
0
0
0
4.9
0.2
0
0
0
0
2.8
1.0
0
0
0.1
0.1
0.1
0.1
~
~
~
1.0
1.0
0
0
0.1
~
~
2.4
~
0.1
0.1
0.1
4.9
4.9
0
4.8
4.8
0
0
4.4
4.9
0
2.2
2.5
4.9
~
~
~
~
~
~
~
2.4
~
~
~
2. 8
~
~
~
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
2.4
5
6
L.P.F
ADC/DAC
DSP AMP
DAC
MUTE
DRIVE
RAMDSP
CONTROL
DSP + DOLBY DIGITAL/
PRO-LOGIC/DTS DECODER
DIR
MUTING
TO INPUT(3) CB354
page E-50/J-48
N-8
7
5
6
4
8
14
7
12
13
8
9
10
3
2
5
6
4
TO INPUT(1) CB106
page E-50/J-48
I-8
1
2
3
AK4526A-VQ
8
1
3
2
3
2
1
7
8
5
7
5
6
6
TO INPUT(1) CB102
page E-50/J-48
D-1
YSS918D-F
AK4526A-VQ
AK4526VQ
… 44 …


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