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A
SCHEMATIC DIAGRAMS-2 / PART-4
POWER AMP SECTION
1
BAAF-0008(2/2)
U001
AMPLIFIER PC BOARD
NOTE
!
THE COMPONENTS IDENTIFIED BY MARK
REPLACE ONLY WITH PART NUMBER SPECIFIED.
BOLD VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
2
ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS (
) ARE IN uF/WV.
ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF, 330- 33pF, 331- 330pF, 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/6 WATT UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX)
PRINTING SIDE
"NM" AND "NC" ARE SHORT FOR "NOT MOUNTED" AND "NOT CONNECTED",
WHICH MEANS NO PART IS MOUNTED ON WIRING PATTERN OF PCB.
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
3
POWER TRANSISTOR LIST
TX-SR507
(EXCEPT PP)
MN130S
Q6050-Q6056
Q6060-Q6066
MP130S
TO BAAF-0008(1/2)
PART-3:J2
VOLH
SEC1H
GND_S1
+22V
IPROTECT
4
VPROTECT
2SA1163-BL
5
R6701
22K
2SA1163-BL
6
TO BAPS-0010
PART-3:A8
TO BAPS-0010
PART-3:A8
7
1
AC_S1L+
2
3
4
5
TP691
AC_S1L-
8
B
ARE CRITICAL FOR SAFETY.
TX-SR577
TX-SR507 PP
HT-R670
TX-SA507
MN130S
2SC5198
MN130S
2SA1941
Q6701
Q6702
Q6703
2SC2712-GR
2SC2712-GR
Q6713
P6903B
R6902
1K
Q6707
2SC2712-GR
S1H+
4
1
+B1H_B1
RL6901
3
2
3
2
P6904B
RL6902
S1H-
4
1
-B1H_B1
10A 125V
S1L+
F6901
F6902
S1L-
10A 125V
TO BAAF-0008(1/2)
PART-3:J2
C
FRONT L
+B1LL
R5000
C5010
R5020
1K
330
47/50
-0.65V
2.2K
R5040
-46.5V
-B1LL
+B1RR
FRONT R
R5001
C5011
R5021
1K
330
47/50
-0.65V
2.2K
R5041
-46.5V
-B1RR
CENTER
+B1CC
R5002
C5012
R5022
1K
47/50
330
-0.65V
2.2K
R5042
-46.5V
-B1CC
P6901A
GND
+B1H_B
D10XB60H
D6901
4
1
D10XB60H
-B1H_B
D6903
4
1
P6902A
TX-SR507/577/HT-R670
C6901/6902
8200uF/63V-MB
D
E
NOTE:
XY in "SCHEMATIC-a / PART-b:XY" indicates the target
location of the plug or socket, X=A to E/H/K, Y=1 to 4/5/8.
10
(1/4W)
+51.5V
+B1L
R6020
R5180
2.2
(1/4W)
+1.1V
+BL
+50.5V
+1.0V
R5030
120K
-0.3V
0V
NFL
R5230
120K
IDLING
ADJ.
-0.4V
R6040
2K
-BL
-1.1V
10
(1/4W)
-B1L
-51.5V
R5190
10
(1/4W)
+51.5V
+B1R
R5181
2.2
(1/4W)
+1.1V
+BR
R6021
+50.5V
+1.0V
R5031
120K
-0.3V
0V
NFR
R5231
120K
IDLING
ADJ.
-0.4V
R6041
2K
-BR
-1.1V
10
(1/4W)
-B1R
-51.5V
R5191
10
(1/4W)
+51.5V
+B1C
R5182
2.2
(1/4W)
+1.1V
+BC
R6022
+50.5V
+1.0V
R5032
120K
-0.3V
0V
NFC
R5232
120K
IDLING
ADJ.
-0.4V
R6042
2K
-BC
-1.1V
(1/4W)
10
-B1C
-51.5V
R5192
P6911B
JL6603A
TX-SA507
8200uF/63V-MA
+52.5V
Q6030
2SC5171
R6080
0.22
(1/4W)
Q6050
+0.6V
NM130S
R6140
56K
R6100
0.22(3W)
P6080
2
ID+
1
ID-
0.22
(1/4W)
Q6060
MP130S
-0.6V
R6090
R6170
47K
D6000
KDS414
Q6040
2SA1930
-52.5V
+52.5V
Q6031
2SC5171
0.22
(1/4W)
Q6051
+0.6V
NM130S
R6081
R6141
56K
R6101
0.22(3W)
P6081
2
ID+
1
ID-
0.22
(1/4W)
Q6061
MP130S
-0.6V
R6091
R6171
47K
D6001
KDS4148U
Q6041
2SA1930
-52.5V
+52.5V
Q6032
2SC5171
0.22
(1/4W)
Q6052
+0.6V
NM130S
R6082
R6142
56K
R6102
0.22(3W)
P6082
2
ID+
1
ID-
0.22
(1/4W)
Q6062
-0.6V
MP130S
R6092
R6172
47K
D6002
KDS414
Q6042
2SA1930
-52.5V
BAAF-0008(1
PART-3:K7
TO BATRM-0029
PART-7:F1
TO
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