OEC7177A (IC102)
No. Pin name
I/O
Function
IC DESCRIPTION
39 8.7VREG_OUT -
Power output terminal for 8.7V Regulator in IC.
40 HVCO_F/B -
Feedback terminal for horizntal VCO.
41 AFC_FILTER -
Filter terminal for horizntal AFC1 circuit.
42 DEF_GND -
GND.
43 FBP_IN -
FBP Input terminal.
44 H OUT -
Output terminal for horizontal drive pulse.
45 DEF_VCC -
Power input terminal.
46 HI_VCC -
Power input termina for RGB output circuirl.
47 R_OUT -
RGB output terminal .
48 G_OUT -
RGB output terminal .
49 B_OUT -
RGB output terminal .
50 MCU_RESET_OUT -
RESET output.
51
AUDIO_SW1
O
52
AUDIO_SW2
O
53
AUDIO_MUTE
O
Output terminal for AUDIO MUTE control of speaker of TV.
HIGH is output at the following.
- When the power on or power off
- When the Tuning
- When the external input is switched.
- When the mute key is pushed
- When the volume is minimum
- When the V-CHIP PROTECT operates
- When there is no signal
54 H_CTL O
Output terminal to evade the high voltage remainder of cathode-ray tube at the TV POWER OFF.
LOW is output usually. At the POWER OFF, Hi-z is output.
55 PROTECT O
Output terminal to evade the high voltage remainder of cathode-ray tube at the TV POWER OFF.
LOW is output usually. At the POWER OFF, Hi-z is output.
56 MCU RESET IN I
Input terminal for RESET.
57 DTV_CLK O
Four line serial communications terminal (Clock output) with DIGITAL u-com .
The output voltage is set to 3.3V.
58 DTV_DATA_OUT O
Four line serial communications terminal (Data output) with DIGITAL u-com .
The output voltage is set to 3.3V.
59 DTV_DATA_IN I
Four line serial communications terminal (Data input) with DIGITAL u-com .
The output voltage is set to 3.3V.
60 HLF -
Filter connection terminal for slicer.
61 VHOLD -
Capacitor connection terminal for slicer.
62 CVIN -
Video signal input terminal.
63 X-RAY I
Input terminal for X-RAY detection.
When the voltage more than a set value of initialization "X-RAY" is detected even once, the power supply is
compulsorily turned off.
It changes to a set value of initialization "X-RAY TEST" only at the X-RAY TEST mode of the factory
adjustment mode.
64 E0_LEAK I
Input terminal for E0_LEAK detection.
Detection starts immediately after POWER ON. When the voltage more than a set value of initialization
"E0-LEAK" is detected even once, the power supply is compulsorily turned off.
65
DTV_CS
I
Four line serial communications terminal (Chip_Select input) with DIGITAL u-com .
LOW actively.
HIGH is input at time usually.
When LOW is input, Clock is output.
66 CNVSS -
GND.
67 XIN I
GND.
68 XOUT O
Unused(OPEN).
Output terminal for AUDIO SW IC control.
SW1 SW2
L L : At a Analog channel
L H : Unused
H L : At the external input
H H : At a Digital channel
Refer to Av_sw_table.xls.
F-2
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