Circuit Operation Description
5-68
Samsung Electronics
6. AD9883 (IC705) - A/D CONVERTER
Check when the input mode is for Component 1
or 2 (HD-level) and PC.
(1) Check whether the proper power is supplied. (3.3V)
(2) Check I
2
C-BUS (pins 56 and 57).
(3) Check whether the video input signals (pins 43, 48, 54) and the H (pin 30) and
V (pin 31) input signals are normal.
(4) Check whether the data outputs are normal.
R, G, B digital data outputs (RW708~RW713), ASI_SUB_H (pin 66) : 45KHz (for 720P),
ASI_SUB_V (pin 64) : 60Hz, ASI_SUB_CLK (pin 67)
7. SII169CT100 (IC702) - TMDS RECEIVER
Check the when the input mode is for DVI.
(1) Check whether the proper power is supplied. (3.3V)
(2) Check whether the power down pin’s (pin 2) output is High.
(3) Check whether the DVI inputs are normal.
(4) Check whether the data outputs are normal.
R, G, B digital data outputs (RW701~RW706), DVI_HSYND (pin 48), DVI_VSYNC (pin 47),
DVI_CLK (pin 44), DVI_DE (pin 46)
8. ASI500 (IC501) - SCALER
(1) Check whether the proper power is supplied. (3.3V, 2.5V) - Since it is BGA IC, measure the
R or C parts on the power terminals.
(2) Check whether the inputs and outputs between ASI500 and MEMORY (IC502, IC503)
are normal.
(3) Check whether the outputs of FLI2200, AD9883, and SII169CT100 are input into ASI500
are normal.
(4) Check whether the data outputs are normal.
R,G,B digital data outputs (RW501~RW506), MN_IN_H (RW507), MN_IN_V (RW507),
MIN_IN_CLK (RW507)
9. DNIe (IC601) - PICTURE ENHANCER
(1) Check whether the proper power is supplied. (3.3V, 2.5V)
(2) Check whether the Reset pin’s output is High. (pin 74)
(3) Check I
2
C-BUS (pins 1 and 2)
(4) Check whether te outputs of ASI500 are input into DNIe normally.
(Digital R, G, B and HSYNC, VSYMC, CLK)
(5) Check whether the data outputs are normal.
R, G, B digital data outputs (RW602~RW607), OUT_HSYNC (pin 10),
OUT_VSYNC (pin 9), OUT_CLK (pin 12)
10. DS90C385 (IC603) - LVDS TRANSMITTER
(1) Check whether the proper power is supplied. (3.3V)
(2) Check wether the power down pin’s (pin 32) output is High.
(3) Check whether the outputs of DNIe are input into DS90C385 normally.
(4) Check whether the LVDS data outputs are normal.
Summary of Contents for P
Page 14: ...2 12 Samsung Electronics MEMO ...
Page 16: ...Circuit Operation Description 5 2 Samsung Electronics 5 2 WIRE DIAGRAM ...
Page 26: ...Circuit Operation Description 5 12 Samsung Electronics Picture 10 Multi Outputs Main Pulse ...
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Page 89: ...7 2 ANALOG 2 7 2 Schematic Diagrams Samsung Electronics ...
Page 90: ...Samsung Electronics Schematic Diagrams 7 3 7 3 ANALOG 3 ...
Page 91: ...7 4 Schematic Diagrams Samsung Electronics 7 4 ANALOG 4 ...
Page 93: ...7 6 Schematic Diagrams Samsung Electronics 7 6 DIGITAL 2 ...
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Page 95: ...7 8 Schematic Diagrams Samsung Electronics 7 8 DIGITAL 4 ...
Page 96: ...Samsung Electronics Schematic Diagrams 7 9 7 9 DIGITAL 5 TP16 TP17 TP18 TP16 TP17 TP18 ...
Page 99: ...7 12 DIGITAL 8 7 12 Schematic Diagrams Samsung Electronics ...
Page 100: ...7 13 CONTROL Samsung Electronics Schematic Diagrams 7 13 ...
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