Yamaha DSP-A595 Service Manual

A
1
2
3
4
5
6
7
8
9
10
★ 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.
DSP-A595
B
C D
E F
G H I J K L M
N
■ SCHEMATIC DIAGRAM (DSP)
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
M5M51288BKJ-20LTE LC87F5164
AK4320-VM-E1
1SS335
AK4526
YSS908-F
NJM2904M
uPC4570G2
UPC29M33T-E1
HD74HC02FP
2SC3326(A,B)
DTA144EKA
DTC144EKA
Anode
Cathode
12
13
24
IC1 : NJM2904M
IC8~13 : uPC4570G2
Dual OP AMP
IC2 : HD74HC02FP
Quad 2 Input NOR
IC7 : AK4320
1 bit D/A Converter
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
Conditions
• INPUT → CD
• VOLUME → minimum(–∞)
• IMPEDANCE
SELECTOR → Upper
• PRO LOGIC → On
52
• IC3~6, 14→See page 23~29, IC DATA
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 IC4
V : 2V/div H : 50nsec/div
AC range 1 : 1probe
2V SAMPLE 50ns
0V
FRONT L
REAR L
DIGITAL
IN
MAIN L
(DSP)
MAIN
L
CENTER
3. 1
2.2
0
0
4.9
0
4.9
0
0
0
2. 4
2. 4
2. 7
0
0
0
4.8 2.4
2.4 2.4 0
2.4 2.4
0 0
3.1
4.9 4.9
0
4.8
2.4
2.4
0 0
2.4 1.5
0
3.1
0
3.1
4.9 4.9 4.9
2. 4
0. 9
4. 7
0. 2
0
3.1
0
0
0
0
0
0
0
0
0
0
0
0
2. 4
2. 4
2. 7
2. 7
0
2. 4
0 0
4. 7
0
4.9
0
0 0
0 0
0
4.9
4.9
0
0
4. 9
0
0
0
0
0
4.9
0
0
0
4.9
4.9
4.9
0
4.9
2.42.4
2.4
2.4 2.7 2.3 4.9
0
2.4
2.4
2.7
2.7
2.4
2.4
2.4
2.3
2.4 2.4 2.4 2.4 2.4 2.4 2.3
4.8 2.4 4.8 4.7 2.4 0.9 0.2
0
0
3.1
0
0
4 .9
4.8
2.4
2.4
11.9
2.4
2.4
2.4
2.4
2.4
-11.7
-11.7
11.9
2.4
2.4
2.4
0
0
0
0
0
0
0
0
0
11.9
0
0
0
-11.7
0
0
0
11.9
0
0
0
-11.7
0
0
0
0
- 11.1
- 11.1
0
0
-11.2
0.2
0.2
0
0.5
0. 5
4.9
4.9
0
0
0
0.2
0
0
0
- 11.1
- 11.1
0
0
0
0
- 11.1
- 11.1
0
0
0
0
- 11.1
- 11.1
0
0
-11.7
0
11.9
-11.2
-11.2
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
3 .7
3 .8
0
4 .9
0
0
0
4. 9
0
00
4.7
0
-11.2
-11.2
0
0
0
0
2. 3
4. 9
2. 4
2. 4
0
0
4. 9
0
4.9 4.9
0 2.3 0 4.8
4 .8
2.4
4.9
0
0 4.9
0
0
0
1.3
1.3
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9 3.2
0
0
0
0
0
0
0 0 0 0
2.1
4.9 4.9
0
4.9
2.4
2.3
4.7
4.8
Å`
Å`
Å`
Å`
Å`
Å`
Å`
Å`
Å`
Å`
Å`
Å` Å` Å` Å` Å` Å` Å`
Å` Å` Å` Å` Å` Å` Å` Å`
Å` Å` Å` Å` Å` Å` Å`
4.9 4.9
0
4.9 4.9
0 0
4.8 4.9
0
2.2 2.5
4.9
Å`
Å` Å` Å` Å` Å` Å` Å`
Å`
Å`
Å`
Å`
2.4
2.4
2.4
2.4
2.9
2.9
2.4
2.4
2.4
2.7
5
6
L.P.F
ADC/
DAC
DSP AMP
DAC
MUTE
DRIVE
RAMDSP
CONTROL
DOLBY DIGITAL
PRO-LOGIC DECODER
+
DSP
DIR
MUTING
TO INPUT(1) CB102 P49
D-1
TO INPUT(3) CB354
P49
M-8
TO INPUT(1) CB106
P49
H-8
1
2
3
5
6
4
7
5
6
1
4
8
14
7
11
12
13
8
9
10
3
2
7
8
5
7
4
5
6
8
1
3
2
3
2
4
1
6
LC87F5164A
(LC875164A-5K20)
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

Yamaha DSP-A595 Specifications

General

Brand	Yamaha
Model	DSP-A595
Category	Amplifier
Language	English