Sharp AQUOS LC-20B5M, Руководство по обслуживанию

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LC-20B5M
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PCMCIA card Used at 5V/3.3V
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DM270 (IC5001) CPU, DSP, DMAC, OSD, NTSC encoder: system control, OSD display, video encoding/decoding
Used at 3.3V (1.5V for DSP)
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DA150 (IC5201) Audio encoding/decoding
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32M FLASH (IC5003) Storing the program for DA150 and DM270
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64M SDRAM (IC5006) Used for temporary data storage and for image data compression and expansion.
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Reg (IC5409) Conversing 4V/6V to 3.3V/5V for PCMCIA
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Reg (IC5004) Conversing 3.3V to 1.5V for DSP in DM270
"Tips"
1) With this product, showing images recorded with PC or DSC enables you to check the playing system.
2) With PC, showing images recorded with this product enables you to check the recording system.
3) Video is played at the rate in sync with IIS CLOCK signals from audio circuit. For example, if the IIS CLOCK
signals fail to reach the card playing circuit for some reason, the video is played at the lowest rate and is shown
in slow motion.
Major input/output terminals on the card system
Card side
IC (connector) Pin No. LSI terminal name Connection diagram Types of signals Explanation for signals I/O
name signal name
DM270 B3.3V_CARD1A B3.3V_CARD1A Power supply Power supply 3.3V for DM270 I
(IC5001)
103 VIN VIN V signal from VPC to DM270 I
102 HIN HIN H signal from VPC to DM270 I
100 LLC2 (CLK) LLC2 Clock signal from VPC to DM270 I
112 YIN0 YIN0 Data signal 0 from VPC to DM270 I
111 YIN1 YIN1 Data signal 1 from VPC to DM270 I
110 YIN2 YIN2 Video input/output Data signal 2 from VPC to DM270 I
109 YIN3 YIN3 Data signal 3 from VPC to DM270 I
108 YIN4 YIN4 Data signal 4 from VPC to DM270 I
107 YIN5 YIN5 Data signal 5 from VPC to DM270 I
106 YIN6 YIN6 Data signal 6 from VPC to DM270 I
105 YIN7 YIN7 Data signal 7 from VPC to DM270 I
55 RESET RESET Data Reset signal from TV microprocessor to DM270 I
10 CA_DOUT DOUT communication Data signal from TV microprocessor to DM270 I
11 DIN DIN Data signal from DM270 to TV microprocessor I
70 VOUT VOUT V signal from DM270 to IP O
69 HOUT HOUT H signal from DM270 to IP O
68 CKOUT CKOUT Clock signal from DM270 to IP O
81 YOUT0 YOUT0 Data signal 0 from DM270 to IP O
77 YOUT1 YOUT1 Data signal 1 from DM270 to IP O
76 YOUT2 YOUT2 Video input/output Data signal 2 from DM270 to IP O
75 YOUT3 YOUT3 Data signal 3 from DM270 to IP O
74 YOUT4 YOUT4 Data signal 4 from DM270 to IP O
73 YOUT5 YOUT5 Data signal 5 from DM270 to IP O
72 YOUT6 YOUT6 Data signal 6 from DM270 to IP O
71 YOUT7 YOUT7 Data signal 7 from DM270 to IP O
P5003 1 I2S_WS S_WS I2S word strobe L: Right audio input / H: Left audio input I
2 GND
3 I2S_CL S_CL Clock for I2S serial data transmission timing I
4 GND
5 I2SDA_OUT S_DO Audio input/output Audio data input from TV main unit I
6 GND
7 I2SDA_IN1 S_DI In card mode: Card Audio / Not in card mode: Shutter sound O
8 GND
9 I2SDA_IN2 SH_DI
10 GND
Reg 1 IN B4V/6V1_1A 4V/6V output from DC/DC converter to Reg O
(IC5409) 2 SW B4V/6V1_1A ON/OFF switch I
3 OUT V5EN Power supply 3V power input from DC/DC converter to Reg I
V3EN 5V power input from DC/DC converter to Reg I
4 ADJ For adjustment
5 GND GND GND