Technics SU-A900DM2 - Block Diagram

SE-A900SM2
@ Block Diagram
gebatay $VI3205B
1C401
|
1C501
|
c501
VOLTAGE AMP POWER AMP
(12)
7
RSN6000B
BRIDGE
NETWORK
ab
8 AMP
eerie f as
== LASS AA
A
INPUT (Ot cee
. 9
V—AMP/
URRENT
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WT
Ce C5)
(1)
(-B )
(2)
M5218AP
BUFFER
AMP(METER)
SA6130
il
4)
(-8) (+8) METER DRIVE AMP
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1
(0906) AS gio 8A é —_—
14
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comPRESSER
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3
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8
=—
a
vena
T
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ETER
ADJ)
(4B
)
re
S
1D606,601
T
(4)
K
peat
a
(8)
(9)
agen
(+B)
—
Be
~
LOAD
|
Q611,612
(+B)
(8)
LOAL
-
MO'OR
Q801-804,606-808,822
[GETER : ON3131R
aa aoe = : UPD4027BC f
pe
Eee
=
SYSTEM
CONTROL/
“oO O- LED DRIVE CIRCUIT
SWITIHING
543,104,600
0809
POWER
ON
DET.
(+B
)
(4)
Ce) (1) 5 T
(+B ) (2)
0781,D781,782
(+8) (5)
Q771,773,D771,772,775 AN78LO5TA
wt }-@e
REGULATOR (+8 ) 46)
Q772,774,0773,776 Neg
re
VIRTUAL Q
BATTERY (-B) (3) GB) (7)
(8 ) (4)
"1 CONTROL
2) ‘ OUT NOTES:
tj : SOURCE SIGNAL.
Ce) owas fica
3
"
POWER
2)
(
)
INDICATES
PIN
a ON/OFF _ No. OF RIGHT
s S505 oO) CHANNEL.
(PORE, _ (POWER METER LIGHT) AN7BLOSTA ot JK791
711-714
RA ie @ POWER ON/OFF
(G)}j Loic GND
A K AC BACKUP
1
0791-794
AC
BACKUP
To
SU
~
CR00UM2
:
JKBO1
0 Q781,783,0796,797 (5)} +B/VIRTUAL
ag samassopd |
4 Q782,784,D796,788 (3) -B/VIRTUAL
—23-