Block Diagram -Display Section; Circuit Boards Location - Sony CDX-F5500 Service Manual

3-4. BLOCK DIAGRAM — DISPLAY SECTION —
SYSTEM CONTROL
IC500 (3/3)
KEY MATRIX
KEYIN0
S801 95
LCDSO
S901-907,
LCDCKO
910-923
94 KEYIN1
LCDCE
KEY ACK
D501 SWITCH 27 KEYACK
Q501
25 ADON
20 RCIN1
J561 96 RCIN0
(REMOTE IN)
IC971
REMOTE 3
83 SIRCS
RECEIVER
4
IC981
4 3
VLCD
PANEL +B
CONTROL
61 NOSE DET
S102
(NOSE DET)
E MODEL
53 AREA SELO
OSCOUT
BU3.3V
15 XIN
OSCIN
X501
10K 9K
32.768kHz
16 XOUT
S501
FREQUENCY
DOOR IND
SELECT
LCD DRIVER
IC901
72 78 DATA DI
74 77 CL CLK
SEG7-14 7-14
CE CE
73 76
SEG16-31 16-31
SEG33-64 33-64
LCD
LCD901
65
COM1
| |
COM4 68
1 DIMMER
PANEL +B
LED901-907,
910-923
( )
KEY
ILLUMINATION
PANEL +B
LED961,962
(LCD BACK LIGHT)
DIMMER
CONTROL
Q961
12
X500
27.648MHz
13
LED801
DOOR IND
(DOOR IND)
69 CONTROL
LED802
Q101
( Z )

3-5. CIRCUIT BOARDS LOCATION

SENSOR board
KEY board
23 23
CDX-F5500/F5505X
SERVO board
tuner unit
(TU1)
MAIN board
SUB board