Internal View; Disassembly Procedures - Yamaha DSP-A595a Service Manual

DSP-A595a
Q Q
3 7 6 3 1 5 1 5 0
BLOCK DIAGRAM
IC2
IC351
INPUT
8
COAXIAL 13 10 SELECTOR
7
IC352 9
DVD/LD
OPTICAL
TV/DBS OPTICAL OPTICAL SIGNAL
DETECTOR
IC351
L
2 TUNER
R
L
VIDEO
AUX
R
IC104A/B
L 3 1 TAPE
PHONO MONITOR
IC102
R 5 7
1
L
1 CD
2
R
30
L
DVD/LD
29
R
L
TV/DBS
R
L
IN
R
VCR VCR
21 20
L
10 11
OUT
INHIBIT
IC101
R
L
3 IN
(PLAY)
R
TAPE/MD
L
4 OUT
T E
L 1 3 9 4 2 2 9 6 5 1 3
(REC)
R
L
MAIN
R
CENTER
L
SURROUND
R
SUBWOOFER
VIDEO
VIDEO AUX
VIDEO AMP &
DVD/LD MONITOR
SELECTOR
OUT
IC303
TV/DBS
IN Q305,306
VCR
OUT
S VIDEO
VIDEO
AUX
S-VIDEO SELECTOR
DVD/LD & AMP
IC301,302,IC304,305
w w w
IN
VCR
OUT
32
IC10A
L
24 8 18 5 7
37 84
13 3
DIR
12
IC3
XL1 DAC
IC7
13
IC10B
1
R
DSP
17 3 1
+
DIGITAL/
IC11A
PRO-LOGIC/
DTS FL
27 5 7
DECODER
IC4
9
45 6
A/D
IC6 IC11B
47 8
FR
28 3 1
IC8,9
IC106A
IC107A
3 4 2
LFE
24 5 7
IC106B
DAC
28 22 6 8 RAM
IC6
IC5
IC107B
C
23 3 1
IC13A
RL
25 3 1
IC13B
RR
26 5 7
MONITOR
OUT
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6CH
SELECTOR
IC102
IC103
IC103
4 3
1
IC108B
2 4
10 H,P,F 3 1
5
11
8
IC103
IC103
IC103
30 27 26
IC109B
29 27
21 H,P,F 3 1
IC108A 26
20
IC103
23
IC103
6 7
SUB
26
WOOFER
25
IC109A
27
6 7
IC103
5
CENTER
6
4
8
9
7
23
22
24
DSP
VR401
CONTROL
IC404
12 MOTOR
INPUT/
SUB µ-COM
VIDEO/
XL2
IC14 S VIDEO
Q Q SELECTOR
13
3 CONTROL 7 6
~
5 10 78 , 87 , 88 , 91
RCE
94
RDT
RDS 95
CONTROL DEST/RDO
96
(NOT USED)
RCK
97
TMUTE
4
/ST
12
TUNER
METER
CONTROL
22
(NOT USED)
MAIN µ-COM
TCE
93
IC800
DO
99
SW800
81
INPUT A
SELECTER
B 82
18
OPERATION
KEY
SW802~806,
21
810~815,
817,822~824
23 29 15 16
STANBY/ON
SW801
XL800
U800
REMOTE
SENSOR
u 1 6 3
.
33
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2 4
8 9 9
MAIN
POWER AMP
LEVEL
VR401
Q506,511,512,
521,529,Q527A/C
IC401A IC802A
3 1 5 7 4 2 Q810 Q501
TONE
CONTROL
IC801
IC401B IC802B
5 7 3 1 6 8 Q811 Q502
BASS TREBLE VR802 POWER AMP
VR800 VR801
Q507,513,514,
IC402A
IC110
522,530,533,
5 7 14 15
CENTER
POWER AMP
Q508,515,516,
523,534,537,
IC402B
3 1 3 2 Q503
Q509,517,518,
524,538,541
IC403A
1 2 Q504
3 3
POWER AMP
IC403B
7 14 15 Q505
5
Q510,519,520,
IC111 525,542,545,
M
Q724
–10dB
DRIVE
FMC
Q800
3 1 5 1 5 0 8 9 2
MUTE
DRIVE
Q801,802
Q549,550 REAR
86 85 92 77 27
Q546,547
MAIN
PRO1
23
PRO2
24 Q548
CENTER
PRO3 +B,-B,+25,-25,
25
+12A,+12B,+5D,-12
SPRY
RY501
Q553
75
MAIN SPEAKER
EFFECT-RY
RY502
74 Q556
CENTER SPEAKER
SPEAKER RELAY DRIVE
RY503
REAR SPEAKER
RESET
RESET
11
Q803,D805
(J,B,G models)
PDT
S12
POWER DOWN DETECT
26
Q805,D811,812
VDD1 BACK-UP
17
D809 Q806,D813
(MEMORY)
VDD2
90
VDD3
46 D806
VDD4 RY800
72 Q807
PRY
76
VP
Q552
51
D513
INPEDANCE
~ ~ ~ SELECTOR
30 47 52
45 , 50 , 69
SW761
D751
+B
MAIN,
CENTER,
~ ~ REAR
12 33 40 55
,
AMP
FL DISPLAY
–B
V800
D451
1 2 65 65 +25
F2
Q721,
F1
722
-25
D452
+12A
m
-12B IC725,
724,
722
-12
c o
D453
+5D
IC723
2
8 9 9
MAIN PHONES
MAIN
A
L
B
RY501
A
R
B
MAIN
SW711
CENTER
531A/C
+
–
531A/C
RY502
REAR
(SURROUND)
539A/C
+
L
–
REAR
RY503
–
R
+
B.G models only
L
543A/C
MAIN
R
CENTER
L
REAR
(SURROUND)
R
SUBWOOFER
4 9 8 2 9 9
OVER
CURRENT
DETECT
J807
Q808, D816
D815
(R,T models)
T800
REGULATOR
D762,763 +RYV
F804
J809 AC OUTLETS
J,R,T models
AC OUTLET
J809
B model
AC OUTLETS
F803
G model