Read Sony CDX-S2220 Service Manual online
15
15
CDX-S2220
CDX-S2220
3-3. BLOCK DIAGRAM — DISPLAY SECTION —
(Page 14)
S900-908,
910-922
X502
32.768kHz
79
80
82
83
41
28
29
27
40
52
76
64
2
1
SYSTEM CONTROL
IC501 (3/3)
LCD DRIVER
IC901
KEYIN0
DATA
CLK
CE
LCDSO
LCDCKO
LCDCE
D503
KEYIN1
KEYACK
XKEYON
SIRCS
VCC
77
1
2
RESET
70 RETRA SW
PANEL+10V
REMOTE CONTROL
SIGNAL RECEIVER
IC971
RESET
IC602
XIN
XOUT
OSCOUT
OSCIN
X501
18.432MHz
63
64
62
COM4
COM1
PANEL+10V
LCD
LCD901
LED900-921,
951,952
LED932
LCD
BACK LIGHT
51
I
54
4
I
25
•
27
I
50
I
SEG4
SEG25
I
SEG27
SEG50
I
DI
CL
CE
BACKUP +3.3V
RESET
LED
ILLUMINATION
(
)
(
)
KEY MATRIX
S702
RESET
S961
(DOOR)
VDD VOUT
OUT
MAIN
SECTION
C
PANEL+10V
KEY ACK
SWITCH
Q664
3-4. CIRCUIT BOARDS LOCATION
MAIN board
KEY board
SENSOR board
SERVO board
tuner unit
(TU1)
(TU1)
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