Block Diagram - Panel/Power Supply Section - Sony WX-GT90BT Service Manual

5-3.

BLOCK DIAGRAM - PANEL/POWER SUPPLY Section -

LIQUID CRYSTAL
DISPLAY PANEL DISPLAY DRIVER
LCD901
48
S [1] – S [48] SEG1 – SEG48
4
COM [1] – COM [4] COM1 – COM4
1
LED903
LED DRIVE
2
(KEY ILLUMINATION)
Q906 – 908
3
LED901, 902
LED DRIVE
(RING ILLUMINATION)
Q903 – 905
LED900, 904
LED DRIVE
(LCD BACK LIGHT)
Q900 – 902
WX-GT90BT/GT90BTE/GT99BT
X502
32.768kHz
X501
7.92MHz
REMOTE CONTROL
RECEIVER
IC902
S951 - 957,
S959 - 966,
RE901 (1/2)
(FRONT PANEL KEY)
ROTARY
(VOLUME)
ENCODER
RE901 (2/2)
J801
REMOTE IN
LIQUID CRYSTAL
IC901
R
G
B
SUB SYSTEM
CONTROLLER
IC601 (3/3)
LCD_DATA 64 26 LCD_DO
LCD_CLK 63 29 LCD_CLK
LCD_CE 62 28 LCD_CE
USB1_OVR 115
USB1_ON 116
ILL_IN 27
MAIN SYSTEM CONTROLLER
IC501 (3/3)
9 XOUT
8 XIN
11 OSCOUT
IC701 VDD +1.5V
REGULATOR
13 OSCIN
DSP_1_5V 65
IC701 VDDM +1.5V
REGULATOR
BU +3.3V
BU +5V
2 SIRCS
VDD +3.3V
ILL +B
90 KEY_ACK1
DR +6V
93 KEYIN0
92 KEYIN1
+8.5V
IC601 +3.3V REGULATOR
80 RE-IN0
79 RE-IN1
GHOST_3_3V 67
IC601 +1.2V REGULATOR
19 RC_IN1
95 RC_IN0
USB_VBUS
89 KEY_ACK0
(E, Indian)
SYNC_OUT 24
EN_SYS 51
B/U B+
BATTERY
BUIN 17 CHECK
Q801 - 803
ACCESSORY
ACC_IN 55 DETECT
DIMMER
DETECT
27 27
+1.5V
IC681
+1.5V
IC682
+3.3V
REGULATOR
REGULATOR
IC301 (2/2)
IC402
37 BU+B
VP1 20
VP2 6
31 SERVO-3.3V
34 PANEL+B
MECHA-6V
33
AMP-REM 29
30 AUDIO+B (8.5V)
+3.3V
IC603
+1.2V
IC703
5 USB_OUT USB_IN 7 2 LX VIN 3
SYNC
DC/DC CONVERTER
D (Page 26)
IC1300
8 4 9 12
D805, 806
Q301
Q302
WX-GT90BT/GT90BTE/GT99BT
VP 35
CN301 (2/2)
15 VCC
9 AMP_REM
13 ACC
11 ILL