SD-EX220H
4 – 1
Audio
SD-EX220H
Service Manual
Market
E
CHAPTER 4.
DIAGRAMS
[1] Block diagram
LED602
LED604
+7.9V
+5V
Q607
ILU_LED
IC608
PST9140
RESET
+5V(VREF)
RESET
Q608
HP_SW
RDS_RDY
RDS_CLK
RDS_DATA
RDS_RST
X_OUT
X_IN
LID
SENS
+5V
+5V
VREF
VCC
SECTION
TO
MAIN
S_MUTE
RESET
+5V
RX_IN
RM601
GP1UM271
PROTECT
SP_RELAY
POWER
A/D_RESET
P_IN
OFFSET
TO MAIN
SECTION
TO CD
CD_RES
CD_CLK
CD_DI
CD_CE/FLASH
CD_DO
CD_DRF
CD_WRQ
JHP601
HEADPHONES
SECTION
TO
MAIN
HP_SW
SECTION
MAIN/TUNER
TUN_DO
TUN_DI
TUN_CLK
TUN_CE
O/C_SW
KEY3
KEY2
KEY1
TUN_SM
SURROUND
VSS
AVSS
4.19
MHz
XL601
-
VF2
-VP
VF1
Q606
-
KEY
SECTION
IC701
IX0557AW
SYSTEM
MICROCOMPUTER
FL
DISPLAY
FL601
-
-
96
30
31
3
2
1
1
2
3
6
20
28
19
3
9
8
2
1
100
15
95
90
91
92
93
28
5
56
89
41
34
45
44
7
88
24
98
81
18
40
41
42
43
97
21
32
38 37 36
33
34
35
39
23
22
80
2
1
1
2
TO POWER
SECTION
TO POWER
SECTION
TO
POWER
SECTION
IC780
AN78L05
VOLTAGE
REGULATOR
SW601,602,608,615 SW604,606,607 SW609-SW612
SWITCHING
SW771
CD DOOR
OPEN/CLOSE
D781