Toshiba CN27E90 Technical Training Manual page 28

<< MICROCOMPUTER TERMINAL NAME AND OPERATION LOGIC >>
No. Terminal Name Function
1 GND
2 BAL INPUT BALANCE
3 REM OUT REMOTE CONTROL
SIGNAL OUT
4 MUTE SOUND MUTE OUT
5 SP MUTE SPEAKER MUTE
6 DEF POW
7 POWER POWER ON/OFF OUT
8 LED POWER LED OUTPUT
9 POWER LNB
10 LNB DET
11 SCL() IIC BUS CLOCK OUT
12 SDA() IIC BUS DATA IN/OUT In/Out
13 SYNC VCD H SYNC INPUT
14
15 AFT2 IN
16 AFT1 UV MAIN S-CURVE
SIGNAL
17 KEY A LOCAL KEY INPUT
18 KEY B LOCAL KEY INPUT
19 SGV TEST SIGNAL OUT
20 SGA TEST AUDIO OUT
21 VSS POWER GROUNDING
22 R R
23 G G
24 B B
25 Y/BL BL
26 HSYNC
27 VSYNC
28 OSC1 DISPLAY CLOCK
29 OSC2 DISPLAY CLOCK
30 TEST TEST MODE
31 XIN SYSTEM CLOCK
32 XOUT SYSTEM CLOCK
33 RESET SYSTEM RESET
34 SW IN
35 RMT IN REMOTE CONTROL
SIGNAL INPUT
36 SYNC AV1 HSYNC INPUT
37 SCL1 IIC BUS CLOCK OUT
38 SDA1 IIC BUS DATA IN/OUT In/Out
39 GND
40 NC
41 ACP NSYNC INPUT
42 VDD POWER
In/Out Logic
Out PWM out
Out Remote control output
Out Sound mute output
Out In muting = H
Out
Out Power control In ON=H
Out Power LED on-control
LED lighting=L
Out
In
Out IIC bus clock output 0
IIC bus data input/output 0
In Main picture H. sync signal input
In Sub tuner AFT S-curve input
In Main tuner AFT S-curve
signal input
In Local key detection: 0 to 5V
In Local key detection: 0 to 5V
Out Test signal output In normal=L
Out Test audio output In normal=L
— 0V: Gounding voltage
Out
Out
Out
Out
In HSYNC for OSD display
In VSYNC for OSD display
Out 4.5MHz
In
In GND fixed
In System clock input
Out System clock output 8MHz
In System reset input (In reset=L)
IN In remote control pulse input=L
In External H. sync signal input
Out IIC bus clock output 1
IIC bus data input/output 1
In AC pulse input
— 5V
28
Remarks
0V
0V
0V
0V
0V
0V
At display on:Pulse
At dispaly on:Pulse
At dispaly on:Pulse
At dispaly on:Pulse
Pulse
Pulse
Pulse
Pulse
0V
8MHz pulse
8MHz pulse
5V
In reception of
remote pulse
Pulse
Pulse
Pulse
0V
5V