SA-F21
2-3
2-4
2-2. AUDIO/CONTROL BLOCK DIAGRAM
IC106
LIMITER AMP,
LPF
IC102
HPF
3
1
5
7
IC107
LINE AMP
IC105 (1/2)
MIX AMP
IC105 (2/2)
HPF
31
24
2
9
20
IC101
VOLUME,
TONE
CONTROL
IC104
SOUND
CONTROL
3
1
5
7
IC109
AMP
2
6
IC601
HEADPHONE AMP
3
1
5
7
19
18
14
Q601
MUTE
Q602
MUTE
3
4
2
5
1
3
4
2
5
1
HEADPHONES
J601
JACK BOARD
(SEE PAGE 3-8)
POWER BOARD
(SEE PAGE 3-15)
CONTROL BOARD
(SEE PAGE 3-11)
MAIN BOARD
(SEE PAGE 3-7)
SPEAKER TERMINAL BOARD
(SEE PAGE 3-16)
2
1
6
7
IC103
MIX AMP
+
21
19
20
4
5
7
2
1
5
7
Q603
MUTE
Q604
MUTE
B+
+
Q605
MUTE
DRIVE
3
4
5
1
3
4
5
1
Q101, 102
MUTE
DRIVE
Q806
POWER ON
MUTING
D809
1
2
1
2
6
8
4
3
1
INL
RIN
M/S
OUTL
OUTR
IC301
POWER AMP
6
8
4
3
1
IN1
RI2
M/S
OUT1
OUT2
IC401
POWER AMP
IC502
AUTO POWER DETECT
IC501
SYSTEM CONTROL
IC504
RESET SIGNAL
GENERATOR
IC503
REMOTE COMMANDER
RECEIVER
2
3
4
5
1
2
3
4
5
1
+
+
–
–
POWER
(SEE PAGE 2-5)
POWER
(SEE PAGE 2-5)
3
2
4
1
SP101
SUB WOOFER
RY401
RY301
L
R
L
R
INPUT
Q301, 303, 305
RELAY
CONTROL
PJ101
IN2
IN1
OUT2
OUT1
CLK
DATA
LATCH
MUTE
IN
OUT
SCK
SI
CN101
CN601
CN103
CN303
CN305
CN301
TH305
CN304
CN808
CN305
HP L
GND
HP R
MUTE
MUTE
L CH
R CH
SW
MUTE/STBY
VOL CLK
VOL DATA
VOL CE
SW DATA
SW CLK
AUTO POWER
DETECT
STANDBY
5
25
36
34
35
37
38
39
22
3
2
6
7
1
OUTPUT 1
OUTPUT 2
INPUT
RELAY
CONTROL
Q501
LED
DRIVE
Q503
LED
DRIVE
Q504
I/
1
D502
30
LED
DRIVE
Q505
LED
DRIVE
Q506
SW VOL
D503
3
1
28
RESET
VOL_CLK
VOL_DATA
VOL_CE
SW_DATA
SW_LATCH
SW_CLK
AUTO SW
LED OPR
LED STBY
MUSIC
MOVIE
31
10
11
13
14
4
OUT
+5V
+5V
I/
1
S501
MODE
LEVEL
S502
MASTER VOL
D511
32
BASS
D510
33
TREBLE
D509
43
MAX
D508
44
3
D507
45
2
D506
46
1
D505
47
MIN
D504
S503
+
S504
–
X501
6MHz
RIMOKON
LED_VOL
CF1
CF2
KEY1
KEY2
MAIN_SW
LED_BASS
LED_TREBLE
LED_MAX
LED_LEVEL3
LED_LEVEL2
LED_LEVEL1
LED_MIN
3
2
1
7
8
9
10
CN502
2
1
3
10
4
8
9
CN102
05
1
2
1
7
SPEAKER
IMP 4
Ω
L-CH
R-CH
SS-MS21
Q805, 807
RELAY
CONTROL
IC501
q;
4.24 Vp-p