Block Diagram -Display Section - Sony CDX-GT414U Service Manual

CDX-GT410U/GT414U
4-2. BLOCK DIAGRAM — DISPLAY SECTION —
KEY MATRIX
LSW901,902
S901–904,906–915
RE901
PUSH SELECT
(VOLUME)
ROTARY
ENCODER
PANEL+B
MAIN
A
SECTION
(Page 17)
BU+3.3V
CDX-GT410U/GT414U
SYSTEM CONTROL
IC501 (2/2)
41 KEYIN0
FL SO 19
KEYIN1
40
FL SCK
20
FL CS 18
D503
KEY ACKNOWLEDGE
SWITCH
52 KEYACK
Q664
48 AD ON
31 RE-IN0
32 RE-IN1
62 NOSESW
XOUT 80
X502
REMOTE CONTROL 32.768kHz
XIN
SIRCS 79
SIGNAL RECEIVER 64
IC971
OSCOUT 83
X501
18.432MHz
OSCIN 82
RESET
FL ON 89
RESET
77 RESET
IC602
DD ON 90
S103
RESET
FSW OUT 75
FSW IN 10
USB ON 92
USB OVER 91
FL901
FLUORESCENT
INDICATOR TUBE
GRID1 20
GRID2
19
14 DIO
CLK
12 GRID3 16
10 CS
17
FL DRIVE
•
3G
Q883
18
6
FL DRIVE
2G •
Q882
42
1G 41
Q1
40
Q2 39
RESET 15 PANEL+B
FL +12V
VH 9 REG
IC801
VDD+3.3V
VDD(+3.3V) 5 REG
IC972
D804
FL+3V
1
F+ • REG
2
IC802
44
F– •
45
DC-DC CONVERTER
IC803
BATT 1 VIN
SW 2
7 EN
SHIFT
CONTROL 6 RT
INV 5
SWITCH
Q805 D801
FB 3
18 18
FL VH+12V
LED941–947, LED841–847,
950–957, 850–857,
FL DRIVE
961–963, 861–864,
Q881
LSW901,902 LSW901,902
LED DRIVE
Q991
LED DRIVE
Q992
BATT
PANEL+B
USB CONTROL
IC804
6
2 •
7
• IN OUT
3 •
8
4 /EN
5 /OC
CN902
CD 1 CN902
MECHANISM
USB D– 2
UNIT USB D+
3
(MG-101U)
4
(2/2)
PANEL+B