Technics SA-EH790E, Руководство по обслуживанию

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1
8
CN201
2
3
4
5
6
7
9
12
13
14
15
16
17
18
19
11
10
20
To TUNER/AMPLIFIER
BLOCK DIAGRAM
A.GND
+B(10V)
SUR L
CT GND
SH FL1
DATA
TUNER Lch/C
Lch OUT
Rch OUT
S.W
MIC
-B(-10V)
V.GND
D.GND
CLK
SYNC
R ch TUNER Rch
SUR R
CS/REQ
SH FL2
R ch
R ch
-B1
M5218AP C
IC301
SUB WOOFER
OUT
NJM4558MTE1
IC303
SA CS/REQ
SA CLK
SA DATA
FL1
To FL DISPLAY
(FL601)
FL2
ATT
Q502,505 Q504 Q503
Q501
MUT SB
SUR L1
FL
Q315
(Q316)
Q303
(Q304)
Q301
(Q302)
MUT F
TU LIC
SW2
SW1
ATT
Q306
ATT1
SH SYNC
BUFFER
AMP
BUFFER
AMP
BUFFER
AMP
MUTING MUTING
MUTING
CONT.
+B1
D762
+B2
Q765
Q764
+B3
Q767
Q766
Q761,762
Q763
+B4
Q768
+B5
REGULATOR
REGULATOR
REGULATOR
MUTING
ATT
ATT
ATT
ATT
CONT.
MIC
Q309
Q314
NJM4558MTE1
IC501
REGULATOR
STABILIZER
REGULATOR
STABILIZER
SH-EH790(E) BLOCK DIAGRAM
MUTING
CONT.
Q305
BUFFER
AMP
NJM4558MTE1
IC302
(2/2)
ATT
ATT
Q307
D301
ATT
Q506,
507
ATIAV
CT D.GND A.GND
-10V
+10V
NOTES : CD PLAYBACK SIGNAL LINE
( ) indicates pin No. Right channel.