Hitachi 15LD2200, Руководство по обслуживанию

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24
15” TFT TV Service Manual
Signal Pin Type Function
45,
47,
49,
51
3.4. M29W800AT
Low Voltage Single Supply Flash Memory to store PW1306 code.
ELECTRONIC SIGNATURE
– Manufacturer Code: 20h
– Top Device Code, M29W800AT: D7h
3.5. DS90C385
The DS90C385 transmitter converts 28 bits of LVCMOS/ LVTTL data into four LVDS (Low Voltage Differential Signaling)
data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. Every cycle
of the transmit clock 28 bits of input data are sampled and transmitted. At a transmit clock frequency of 85MHz, 24 bits of
RGB data and 3 bits of LCD timing and control data (FPLINE, FPFRAME, DRDY) are transmitted at a rate of 595Mbps per
LVDS data channel. Using a 85MHz clock, the data throughput is 297.5Mbytes/sec.
•
20 to 85 MHz shift clock support
•
Tx power consumption <130mW (typ) @85MHz Grayscale
•
Supports VGA, SVGA, XGA and Dual Pixel SXGA.
•
Up to 2.38Gbps throughput
•
Up to 297.5 Megabytes/sec bandwidth
•
PLL requires no external components
•
Compatible with TIA/EIA-644 LVDS standard
3.6. P15V330
The PI5V330 is a true bidirectional Quad 2-channel multiplexer/demultiplexer that is for both RGB and composite video
switching applications.
•
200MHz bandwidth
•
3 Ohm on-resistance
•
Switching at 10 ns
•
100 mA output current
3.7. 74HC4052
The 74HC/HCT4052 are dual 4-channel analog multiplexers/demultiplexers with common select logic. Each multiplexer has
four independent inputs/outputs (nY0 to nY3) and a common input/output (nZ). The common channel select logics include two
digital select inputs (S0 and S1) and an active LOW enable input (E).
•
Wide analog input voltage range: ± 5 V.
•
Low “ON” resistance:
80 Ohm (typ.) at VCC - VEE = 4.5 V
70 Ohm (typ.) at VCC - VEE = 6.0 V
60 Ohm (typ.) at VCC - VEE = 9.0 V
3.8. TA1366FG
TA1366FG is an Analog Y Cb Cr picture signal improver in a 24-pin SSOP plastic package. TA1366FG functions are
controlled via I
2
C bus.
•
YCbCr 2inputs
•
Through mode (Y bandwidth: 0dB@30MHz)
•
Y block
•
Sharpness