Yamaha DSP-A595a Service Manual

DSP-A595a
32 33
■ BLOCK DIAGRAM
10
11
21
20
6CH
SELECTOR
IC102
26
25
27
6
5
4
8
9
7
22
23
24
OPERATION
KEY
SW802~806,
810~815,
817,822~824
12
4
22
93
18
21
27
50
29
47
23
11
26
90
17
46
76
51
RESET
Q803,D805
POWER DOWN DETECT
Q805,D811,812
BACK-UP
(MEMORY)
Q806,D813 REGULATOR
1 2
65 65
~
33
12
~
55
40
~
U800
TMUTE
/ST
METER
TCE
~
F1
F2
RESET
PDT
VDD1
VDD3
PRY
VP
STANBY/ON
SW801
D808
+B
–B
+25
-25
F804
J809
J809
F803
Q807
RY800
S12
MAIN µ-COM
IC800
REMOTE
SENSOR
FL DISPLAY
V800
D809
,
16
15
XL2
95
94
96
97
RCE
RDT
DEST/RDO
RCK
INPUT/
VIDEO/
S VIDEO
SELECTOR
CONTROL
Q801,802
MUTE
DRIVE
14
3
14
15
2
2
15
3
5
7
IC402A
3
1
IC402B
3
1
IC403A
5
7
IC403B
IC110
IC111
LEVEL CONTROL LEVEL CONTROL
6 GANG MOTOR VOLUME
VR401
TONE
CONTROL
IC801
BASS
VR800
TREBLE
VR801
VR802
-10dB
MAIN
LEVEL
Q811
BALANCE
Q501
Q502
Q503
Q504
Q505
Q724
MUTING
Q506,511,512,
521,529,Q527A/C
Q507,513,514,
522,530,533,
531A/C
Q508,515,516,
523,534,537,
531A/C
Q509,517,518,
524,538,541
539A/C
Q510,519,520,
525,542,545,
543A/C
MAIN
POWER AMP
CENTER
POWER AMP
REAR
POWER AMP
RY501
RY502
RY503
L
R
MAIN
CENTER
L
R
SUBWOOFER
REAR
(SURROUND)
OUTPUT SPEAKER
+
–
L
–
+
R
+
–
REAR
(SURROUND)
CENTER
A
B
L
A
B
R
MAIN
PHONES
+12A
-12
74
Q556
EFFECT-RY
75
Q553
SPRY
24
PRO2
PRO1
Q548
Q546,547
Q549,550
RY503
REAR SPEAKER
RY502
CENTER SPEAKER
RY501
MAIN SPEAKER
SPEAKER RELAY DRIVE
OVER
CURRENT
DETECT
CENTER
MAIN
REAR
VCR
PHONO
CD
13
75
IC104A/B
L
R
L
R
L
R
L
R
L
R
L
R
DVD/LD
TV/DBS
IN
OUT
VCR
IN
(PLAY)
L
R
L
R
TAPE/MD
L
R
MAIN
CENTER
L
R
SUBWOOFER
SURROUND
EXTERNAL
DECODER
INPUT
AUDIO SIGNAL
DIGITAL
SIGNAL
L
R
VIDEO
AUX
INPUT SELECTOR
IC101
1
3
2
22
30
28
29
TAPE
MONITOR
IC102
VIDEO AUX
DVD/LD
TV/DBS
IN
OUT
VCR
Q305,306
VIDEO AMP &
SELECTOR
IC303
MONITOR
OUT
MONITOR
OUT
S-VIDEO SELECTOR
& AMP
IC301,302,IC304,305
IN
DVD/LD
OUT
VIDEO
AUX
VCR
S VIDEO
T800
D751
D451
D452
MAIN,
CENTER,
REAR
AMP
RDS
CONTROL
(NOT USED)
DSP
CONTROL
TUNER
CONTROL
(NOT USED)
M
IC404
IC14
VIDEO
FMC
Q552
D513
INPEDANCE
SELECTOR
SW761
D815
SPEAKER RELAY
SELECTOR SWITCH
SUB
WOOFER
CENTER
5
7
24
IC107A
3
1
23
IC107B
3
1
25
IC13A
5
7
26
IC13B
LFE
C
RL
RR
5
7
27
IC11A
3
1
28
IC11B
6
7
IC108A
FL
FR
6
7
IC109A
DAC
IC6
INHIBIT
IC101
21 20
10
11
5
7
18
IC10A
3
1
17
IC10B
L
R
1
DAC
IC7
6
8
IC106B
4
2
IC106A
DSP
+
DIGITAL/
PRO-LOGIC/
DTS
DECODER
IC4
8
6
~
47
45
~
24 8
42
IC103
30
27
29
IC103
IC103
IC103
RAM
IC5
3
1
IC108B
Q810
IC8,9
OPTICAL
OPTICAL
TV/DBS
DVD/LD
1013
IC351
COAXIAL
A/D
IC6
9
1
DIR
IC3
3
37
12
13
XL1
84
INPUT
SELECTOR
IC352
OPTICAL SIGNAL
DETECTOR
IC351
8
9
13
IC2
7
5
7
IC401B
3
1
IC401A
45
30
~
,
69
52
~
,
99
DO
81
82
A
B
SW800
INPUT
SELECTER
87
78
10
12
13
5
~
91
88
,,,
77
Q800
–10dB
VR401
MOTOR
DRIVE
SUB µ-COM
85 9286
H,P,F
34
5
8
IC103
IC103
MAIN
POWER AMP
SW711
23
+B,-B,+25,-25,
+12A,+12B,+5D,-12
25
PRO3
72
VDD2
VDD4
D806
Q721,
722
+5D
-12B
D453
IC725,
724,
722
IC723
D762,763
+RYV
5 7
3 1
4
2
IC802A
6
8
IC802B
3
1
IC109B
H,P,F
2627
26
23
IC103
IC103
VIDEO SIGNAL
1
TUNER
L
R
2
3
OUT
(REC)
4
Q808, D816
(R,T models)
(J,B,G models)
J807
B.G models only
XL800
AC OUTLETS
AC OUTLETS
AC OUTLET
G model
B model
J,R,T models

Yamaha DSP-A595a Specifications

General

Brand	Yamaha
Model	DSP-A595a
Category	Amplifier
Language	English