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XR-5W497RB
2-4. BLOCK DIAGRAM — DSP SECTION —
B
LINE
1
92
AUDIO L
2
AMP
TUNER
7
93
IC602
SECTION
DRDY
36
WRQ
30
CS
29
WRDY
35
LED
TUNER
C
ILL DUTY
CONTROL
SECTION
Q905
LED
DRIVE
Q21,22
D20-29
(LCD BACKLIGHT)
LCD1
LIQUID CRYSTAL
DISPLAY PANEL
04
AUDIO DSP
IC603
FL
LPF
ADC
DAC
84
3
1
IC604
DSP
RL
DAC
81
5 6
34 37 33
26
27
LPF
3
1
X601
IC606
16.9344MHz
RE1
(ON)
(ROTARY ENCODER)
S3
S2
S1
TP
TIM
SET
(EJECT)
KEY-REQ
16
COM
0-7
LCD OFF
14
STB
19
LCD DRIVER
DATA
18
SEG
IC1
7-65
SCK
17
SEG
1-6
KEY 1-4
22-25
KEY-IN
MATRIX
S4-25, 27
– 15 –
ELECTRONIC VOLUME
IC605
20
VOL
15
3
AMP
1
IC721
Q711
2
8 7 9
8 7 9
20
VOL
15
3
1
AMP
IC771
2
ELECTRONIC VOLUME
IC606
Q761
MUTE
SYSTEM CONTROL
CONTROL
IC801 (2/2)
Q781,782
DAR
AUDIO MUTE
52
56
53
CLK
BEEP DA
34
55
CE
AMP DIAG
78
54
DAF
AMP MODE
81
SP RL OPEN
29
48
SCLK
SP(R) SHORT
64
46
DIN
SP(F) SHORT
61
47
DOUT
DIAGNOSTIC
51
RST
SP(R) CLIP
63
DETECT
PD
SP(F) CLIP
35
60
IC301,302
45
WRDY
44
CS
SP FL OPEN
27
50
WRQ
49
DRDY
CLK
43
DO
42
Q707
89
ILLUMI ON
ENO
41
92
ROT A
Q701
93
ROT B
ENI
22
ON-KEY
20
86
TP-KEY
D815
POWER
21
TIM/EJ
BATT
CONTROL
Q810,811
85
TIM-KEY
EJ-KEY
EXAMP ON
84
80
EXT AMP
EXAMP NG 76
CHECK
Q816
P-ON 32
+B DET
+B-AD 25
BATT
D819
AUDIO ON 79
1
KEY-REQ
5
LCD ON
X2 10
X801
6
CE
4.915MHz
7
DATA
X1 11
8
CLK
POWER AMP
IC901
4
1
6
Q973
11
MODE
12
DIAG
DIAG
12
11
MODE
4
1
6
Q975
POWER AMP
3
IC902
IC941
AMP MODE
CONTROL
1
Q960-964
DIAG
DIAG
CONTROL
DET
Q971,972
Q941
3
1
DIAG
DET
Q921
Q821
Q705
Q706
D816
9V REG
BATT
1
2
S9V
IC811
4
5V REG
S5V
Q808
POWER
BATT
CONTROL
AUD +B
Q806,807
– 16 –
ISO701 (4/5)
25
FL (+)
24
FL (–)
23
FR (+)
R-CH
24
FR (–)
SPEAKER
27
RL (+)
28
RL (–)
21
RR (+)
R-CH
22
RR (–)
IC921
ISO701 (5/5)
8
CLK
9
2ND
DOUT
DISPLAY
10
CE
4
FL
3
FR
R-CH
1
LINE OUT
RL
2
R-CH
RR
6
AMP-REM
Signal path
: FM
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