J
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
52
A-S801
CB105
CB101
CB109
CB108
W103
CB104
W104
W102
IC101
CB107
IC102
CB106
Q123A
Q121A
Q123C
Q121C
Q124C
Q122C
Q124A
Q122A
L
A/B
AUTO
POWER
STANDBY
ON/OFF
SUB
WOOFER
OUT
IMPEDANCE
SELECTOR
HIGH/LOW
R
+
-
+
-
SPEAKERS
FUNCTION (1)
(W405)
PREOUT_L
AGND
PREOUT_R
+7V
-7V
AGND
FUNCTION (1)
(W505)
THM
THM
POW_MGT
+5S
MG
SWMT
PREMT
SPBRY
SPARY
PRIY
PRI
PRD
MAIN (2)
(CB13)
+7UNREG
-VP_UNREG
E
POW_MGT
ACH
ACL
ACL
E
E
ACH
-7UNREG
PRV HPL
E
HPR
POWER
TRANSFORMER
FUNCTION (2)
(W402)
FUNCTION (2)
(W401)
L
E
R
E
10 W
5 k-ohms
10 W
5 k-ohms
to HEATSINK R temperature
to HEATSINK
L temperature
GND
OUT
VCC
GND
OUT
VCC
#
#
#
#
#
#
#
#
Note: Those parts marked with “#” are not included in the P.C.B. ass’y.
(マーク#の部品は、
P.C.B.
に含まれません。)
B, G, J models
T, K, B, G, L models
•
Semiconductor Location
Ref no. Location
D111
D6
IC101
F6
IC102
G2
Q137
D5
Q129
D6
Q127
D6
Q139
F3
Q119
F4
Q138
G3
Q118
G3
Q120
G4
Q117
G5
Q115
H3
Q116
H4
Q113
H4
Q114
H4
IC101
F6
IC102
G2
(Side A)
MAIN (1)
Safety measures
•
Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such
as wearing insulating gloves.
•
Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a
high voltage continues to exist there. Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals
of each capacitor indicated below to discharge electricity. The time required for discharging is about 30 seconds per each.
C134, C135 on MAIN (1) P.C.B.
安全対策
・
この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。
・
下記のコンデンサには電源を
OFF
にした後も電荷が残り、高電圧が維持されており危険です。修理作業前に放電用抵抗(
5 k
Ω
/10 W
)
を下記の各コンデンサの端子間に接続して放電してください。放電所用時間は各々約
30
秒間です。
MAIN
(
1
)
P.C.B.
の
C134
、
C135
(Side A)
MAIN (5)
(Side A)
MAIN (4)
Содержание A-S801
Страница 4: ...4 A S801 A S801 REAR PANELS A S801 U model A S801 T model A S801 K model ...
Страница 5: ...5 A S801 A S801 A S801 B G models A S801 L model A S801 J model ...
Страница 56: ...56 A S801 MEMO MEMO ...
Страница 83: ...83 A S801 A S801 MEMO ...
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