3-36
3-37
2. OVERALL BLOCK DIAGRAM 2
RF IN
Loop
Through
Tuner
5V I2C
ATSC NIM TUNER
CPU
(S3C44B0X)
60MHz
SDRAM
(4Mx16bx2)
Flash ROM
(512Kx16bx2)
EEPROM
(32Kx8b)
CPU I/F
3V I2C
CPU CLK
RS232
Driver
(MAX232)
UART
Sys Reset
(KIA7029 &
74HC14)
RS-232C
10 MHz
X-tal
YPbPr Video Out
AMP
(LMH6683)
Line Driver
(74HC540)
RGB
Hs/Vs
RGB Video Out
TP Demux
Video Decoder
Audio Decoder
Format Converter
VDP
(LGDT1102A
: HD-II)
LPF
(TOKO 25M)
X 3
Main PWM
Main VDP Clock
Clock Gen.
(CY24206)
NT2CLK
SYSCLK
DVI
Transmitter
(Sil170)
TMDS CH0,1,2
TMDS CLK +-
I2C Ext.
(82B715)
5V I2C
DVI Out
Digital RGB
Hs, Vs
3V I2C
SDRAM
(2Mx32bx2)
ATSC TP
Digital
Audio Out
2CH L/R
Audio Out
LPF
(MC33078)
Digital Audio
Optical Out
DAC
(CS4340)
Digital Audio
Coaxial Out
AC120V
+30V
+12V
+9V
+5V
+5V_Alive
+3.3V
-28V
-24V
-21.5V
SMPS
Power Control
Variable
Audio Out X2
I2C Hub
I2C
I2C
5V I2C
VCR Out
S-Video Out
VCR out (Comp.)
VCR out (Y/C)
AMP
(LMH6683)
RGB
DVI 5V I2C
Sil 170
+5V_Alive
3.3V
Regulator
+3.3V_Alive
2.5V
Regulator
+2.5V_Alive
+3.3V
1.8V
Regulator
+1.8V
VFD
Controller
Front Panel
VFD
Key Scan
Key Block
IR
Receiver
VCXO IC
(CY24212)
IC203
IC105
IC108
IC103, IC104
IC102
IC109
IC100, IC101
IC106, IC107
IC111
IC113
IC114
IC110
IC112
X101
X3300
27 MHz
X-tal
IC200
IC201, IC202
IC206
IC207
IC205
Buffer
(74LCX157)
Mute Control
IC2300
IC3300
IC300
IC302
IC303
FL300~302
Summary of Contents for LST-3100A
Page 17: ...3 8 Fig 01 12 2880MHz clock Fig 02 48KHz clock Fig 04 Analog Audio Signal Fig 03 Data Signal ...
Page 19: ...3 10 Fig 06 Analog Audio Signal ...
Page 22: ...3 13 Fig 07 Digital Audio Signal Fig 08 Coaxial Digital Audio Signal ...
Page 31: ...3 23 FIG 04 V sync signal FIG 03 H sync signal ...
Page 33: ...3 25 FIG 05 Input Stream to IC203 FIG 06 Interrupt Signal ...
Page 34: ...3 26 ...
Page 35: ...3 27 ...
Page 36: ...3 28 YES D Check analog buffers IC303 for 480i Jump to A flow ...
Page 50: ...3 50 3 51 2 CPU AUDIO POWER CIRCUIT DIAGRAM ...
Page 51: ...3 52 3 53 3 HD2 TUNER DVI CIRCUIT DIAGRAM ...
Page 52: ...3 54 3 55 4 ATSCII STB CIRCUIT DIAGRAM ...
Page 53: ...3 56 3 57 5 FRONT CIRCUIT DIAGRAM ...
Page 54: ...3 58 3 59 PRINTED CIRCUIT DIAGRAMS 1 DIGITAL MAIN P C BOARD BOTTOM LOCATION GUIDE ...
Page 55: ...3 60 3 61 2 DIGITAL MAIN P C BOARD TOP ...
Page 56: ...3 62 3 63 3 FRONT P C BOARD 4 POWER P C BOARD LOCATION GUIDE ...
Page 57: ......