Block Diagram - Panel, Power Supply Section - Sony MEX-BT38UW Service Manual

4-3.

BLOCK DIAGRAM - PANEL, POWER SUPPLY Section -

LED901
LED DRIVE
(LCD BACK LIGHT)
Q901
LED924, 925, 928, 929
LED DRIVE
(RING ILLUMINATION)
Q907
LED905
LIQUID
(DISC SLOT INDICATOR)
CRYSTAL
DISPLAY
LCD901
LED907, 909, 932, 934
(ILLUMINATION)
LED903, 910, 912, 914,
LED916, 919, 921,
LCD +9V
LSW905 - 913 (1/2)
(KEY ILLUMINATION)
BT_ON
B
CN901
(Page 21)
20
SYS_RST
XSYS_RST
BU_CHECK
CNJ600
BUS CONTROL IN
5 6 DATA_I/O
4
4 CLK
6 1 BUS_ON
2 2 RST
TH600
7
3 BATT
D600
BATTERY
CHECK
Q600
BU B+
D601
MEX-BT38UW/BT3800U/BT3807U/BT3850U
LIQUID CRYSTAL DISPLAY DRIVER
SYSTEM CONTROLLER
IC901
IC501 (3/3)
2 DIMMER
4 BLINK
LCD_DATA 64 49 LCD_SO
48
SEG52, LCD_CLK 63 50 LCD_SCK
SEG2 - SEG48
LCD_CE 62 48 LCD_CE
4
COM1 - COM4
CN101
20
20 XNOSE_SW
RESET SIGNAL
BU +3.3V
GENERATOR
IC503
54 XRESET
S101
RESET
SONY BUS INTERFACE
IC601
BU_CHECK 10 67 BU_CHECK
DATA_IN 9 56 UNISO
DATA_OUT 8 55 UNISI
CLK_IN 11 57 UNSCK
BUS_IN 12 83 XBUS_ON
XRST 13 86 XSYS_RST
LSW905 - 913 (2/2),
RE901 (1/2),
S901 - 907
(FRONT PANEL KEY)
2 2
KEY_IN0, KEY_IN1
46 XKEY_ACK1
ROTARY
26 RE_IN0
(VOLUME)
ENCODER
27 RE_IN1
RE901 (2/2)
J701 34 XRC_IN1
REMOTE IN 41 RC_IN0
45 XKEY_ACK0
BU +3.3V
B+ SWITCH
MIC +3.3V
Q826, 827
BT_MIC_POW 87
BT +3.3V
REGULATOR
BT_POWER_CTRL 4 CONTROL
Q802, 803
BU +5V
CD +3.3V
CD +6V
LCD +9V
AUDIO +8.5V
USB POWER
VBUS ON/OFF SWITCH
XUSB_OVR 76
USB_ON 79
DD_ON 80
ACCESSORY
XACC_IN 82
CHECK
Q703
LEVEL SHIFT
TEL_ATT 81
Q701
X_IN 14
X502
32.768kHz
X_OUT 13
93
OSC_IN
X501
7.92MHz
OSC_OUT
92
(BT3850U: E)
BU +3.3V
S502
FREQUENCY
SELECT
AREA_SEL2 28
10k
9k
REMOTE
D505
CONTROL
SIRCS 95
RECEIVER
IC902
23 23
MEX-BT38UW/BT3800U/BT3807U/BT3850U
+3.3V
REGULATOR
IC502
REGULATOR
IC301 (2/2)
+3.3V CN701 (2/2)
REGULATOR
AMP-REM 29
IC801
ANT-REM 27
BU B+
37 BU+B
31 SERVO-3.3V VP 35
33 MECHA-6V
VP1 20
34 PANEL+B VP2 6
30 AUDIO+B(8.5V)
DC/DC CONVERTER
IC851,
IC852 Q851 - 854, 861
5 AMP-R
6 AMT-R
19 +B
7 ACC
13 ATT