akira PTV-50H08, Руководство по обслуживанию

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Model No.: PTV-50H08
Version: 1.0
N801 Jumper Description
Table1 SDA555XFL Jumper Description
Jumper Function Type Specification
1/P0.0 SDA_1 IN/OUT SDA_1Bus, for control of tuner, sound effect board, AV
board, etc.
2/P0.1 SCL_1 IN/OUT SCL_1 Bus, for control of tuner, sound effect board, AV
board, etc.
3P0.2 SDA_E
2
PROM IN/OUT SDA_ E
2
PROM,
4/P0.3 SCL_E
2
PROM IN/OUT SDA_E
2
PROM, dedicated bus for E
2
PROM
5/P0.4 SDA_0 IN/OUT SDA_0 Bus, for control of DPTV board, TA1316AN board,
TA1317N board, etc.
6/P0.5 SCL_0 IN/OUT SDA_0 Bus, for control of DPTV board, TA1316AN board,
TA1317N board, etc.
7/P0.6 F_SW Input Low level available, for automatic adjustment and test of
white balance.
8/P0.7 IN/OUT NC
9 VDD2.5 Power Supply Voltage of the power supply
10 VSS Power Supply Ground
11 VDD3.3 Power Supply Voltage of input and output ports
12 CVBS_IN Input Input of color composite television signal
13 VDDA2.5 Power Supply Voltage of the power supply
14 VSS Power Supply Ground
15/P2.0 Input NC
16/P2.1 AFC_M IN/OUT Automatic frequency control of the main channel
17/P2.2 AFC_P IN/OUT NC
18 KEY_IN Input Local keys for A/D input. Key center voltages: 0.9V
p, 1.5V program -, 2.1V , 2.8V volume -,
3.5V TV/AV, 4.1V MENU. No key -- 5V
19 HS/SSC Input Input of line synchronization/ sand fort pulse
20 VS Input Input of vertical synchronization
21/P3.0 Input NC
22/P3.2 LED_POWER Output LED Level output, low level upon switching on.
23/P3.3 REMOTE_IN Input REMOTE input of remote controlling pulse
24/P3.3 INTER/PRO IN/OUT INTER-PRO level output, temporarily for field frequency
switching. Output low level at 100/120HZ; high level at
50/60HZ.