Text preview for : 09_Block Diagram.pdf part of Samsung LW20M21C Servicemanual
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IC803
Fo r VCTIF No n- Flash versio n
LW17M24C/LW20M21C
M27W401 EPROM
ADR[ 19;0] DATA[ 7;0] Main L/ R Head p ho ne L/ R
8 Block Diagram
TUNER IF AV CVBS
IC802
So und Am p
IC600 TDA7266D IC601 TDA7050
Head p ho ne Am p
So und Am p Head p ho ne Am p
S- VHS Y,C
SCART CVBS,RGB
SCART RF
TV Pro c esso r
VCTIF IC704
656 8- b it 656_CLK
AV,S- VHS L,R
8-1 Signal Path Block Diagram
Co m p o nent(SCART) L,R
LVDS/ TTL
SCART L,R
-
.IF .SOUND .2D_Co m b .Vid eo Dec o d er .Mic ro _c o ntro ller
g m 2221
Sc aler
SCL/ SDA1
15,17,20 Inc h
IC705
EEPROM Fac to ry, User d ata
SCL/ SDA1
This Document can not be used without Samsung's authorization.
NT Only
RGB HV
SCL/ SDA2
Co m p o nent
Y,Pb ,Pr
IC501 BA7657
Vid eo sw itc h
RGB HV
Vid eo sw itc h
IC501 BA7657
Y,Pb ,Pr / RGB HV
IC706
DS1337 CLOCK
-
.3CH ADC .De_interac ing .Sc aler / FRC .Auto Detec tio n .Sync Sep aratio n .OSD .Gam m a Co rrec tio n .LVDS / TTL
ADR[ 17;0] DATA[ 7;0]
PC Analo g
IC900
EEPROM DDC d ata
I2C
IC702 PM39LV020
Flash
IO PORT SW_INVERTOR SW_POWER SW_LVDS VCTI_RESET PC_IDENT HP_IDENT AMP_MUTE SEL COMP/ PC SEL INT/ EXT
8 Block Diagrams
8-1
8-2
MP1410 Ad justab le IC108 8V _VCTI 9V _SOUND AMP 5V 3. 3V _17, 20inc h Panel _15inc h Panel BA178M08 Fixed IC109 SI9993ADY FET IC100 LM1085- 3. 3 Fixed (o p tio n) IC104 MP1410 Ad justab le IC110 5V _TUNER _VCTI _S3C9428
8 Block Diagrams
Po wer DC14V 600m A
FT101 Pin 2
8-2 Input Power Block Diagram
Po wer DC5V 990m A AP1117D- 18A Fixed SI9993ADY IC112 AP1117D- 3. 3 Fixed IC111 FET IC102
1. 8V _VCTI 3. 3V _VCTI 1. 8V_Stand b y _g m 2221
FT144 Pin 2
AP1117D- 18 Fixed IC105 AP1117D- 3. 3 Fixed IC111 5V_Stand b y _EEPROM(DDC) IC900 Pin 8 3. 3V_Stand b y _g m 2221 _Pm 39LV020 _EEPRO M
LW17M24C/LW20M21C