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STR-KM2/KM3
5-4.
BLOCK DIAGRAM – KEY/DISPLAY/USB Section –
CN2509
CLK
4
SO
5
SI
FLASH
6
MD2
PROGRAMMING
8
MD0
9
RESET
3
DSP
IC2801 (2/2)
MD
44
RESET_MAIN
47
STR-KM2/KM3
92
X1(X_OUT)
X2101
4MHz
93
X0(X_IN)
EEPROM
IC2106
SDA
5
99
E2P_SDA
SCL
E2P_SCL
6
100
61
FLASH_CLK
60
SO
59 SI
51
MD2
53
MD0
Q2006
DATA
D2019
SWITCH
MAIN RESET SWITCH
RESET SWITCH
IC2033
IC2019
1
4
1
4
54
RST
Gate
OUT_Y
IN
OUT
2 In
IN
2
1
RESET SIGNAL
+3.3V
GENERATOR
2 VDD
STBY
IC2020
S100
_/1
11
POWER_KEY
37
USB_OVC
EXCEPT SAF, AR
USB POWER SWITCH
IC4101
4
FAULT
Vout
6
Vin
1
REGISTOR CONTROL
IC4161
IC4102
+3.3V
+6.3V
+3.3V
VOUT
1
REG
DCDC
DIGITAL AUDIO
INTERFACE RECEIVER
RXIN2 USB SPDIF
62
IC2806 (2/2)
FL DISPLAY DRIVER
SYSTEM
CONTROL
IC2105 (3/4)
21
9 STB
FL_LAT
22
FL_DATA
7 DIN
FL_CLK
23
8 CLK
SIRCS
SIRCS
12
2
VOL_JOG
30
3
2
31
INPUT_JOG
3
AD_KEY_1
34
36
AD_KEY_2
39,48 - 50
VD4170-
VD4171
4
IRPTO,
33
USB-DM
KEY-ROW1/MCHNG,
USB-DP
34
KEY-ROW3/SCL,
KEY-ROW4/SDA
XIN-PLL
40
X4102
16.9344MHz
XOUT-PLL
41
53
SPDIF
DATA PROCESSOR
IC4100
16
16
IC100
14
T100
SEG1
I
DC CONVERTER
I
29
ND100
TRANSFORMER
SEG17
31
VACUUM
FLUORESCENT
GRID1
42
DISPLAY
I
I
GRID11
32
D122
VEE
30
D123
SWITCHING
DIODE
INPUT LED
D100, D102 - D103,
SW1
1
Q101
D105, D107, D109
VOLUME LED
D139, D141 - D142,
SW2
2
Q102
D144, D146 - D147
BAR LED
D130, D132 - D133,
3
SW3
Q103
D135, D136, D138
REMOTE
CONTROL
2
OUT
SIGNAL
RECEIVER
IC102
RV101
MASTER
VOLUME
RV100
INPUT
SELECTOR
SW NETWORK
S101-102
SW NETWORK
S103-105
ET4100
D4107
CN4101
D+
2
D-
3
Vbus
4
Q100
D120
+6.3V DCDC
SWITCHING
D121
TRANSISTOR
IC101
+3.3V
+3.3V
REG
SAF
:
AR
:
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