Akai LT-32Q5LFH Service Manual page 69

32" wide tft lcd tv
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2.1.2. VSP Part
Table 2–5: New VSP Registers
Name
Sub
CD
LPCDEL[2:0]
h07[2:0]
THRSEL[1:0]
h07[13:12]
CVBSLPBW[1:0]
hB4[5:4]
CVBSFEBW[1:0]
hB4[3:2]
PDTHD[1:0]
hB4[1:0]
MINVWIN
hB5[15]
THRELIM
hB5[14]
CETHD[1:0]
hB5[13:12]
THRELP[1:0]
hB5[11:10]
FECA[1:0]
hB5[4:3]
PWREDLIM[2:0]
hB5[2:0]
NSREDTHD[1:0]
hB6[1:0]
CIRCUIT DESCRIPTIONS
Dir
Sync
Reset
Range
RW
VS_CD
0
-8..7
RW
VS_CD
0
0,1,2,3
RW
VS_CD
0
0..3
RW
VS_CD
0
0..3
RW
VS_CD
0
0,1,2,3
RW
VS_CD
0
0,1
RW
VS_CD
0
0,1
RW
VS_CD
0
0,1,2,3
RW
VS_CD
0
0..3
RW
VS_CD
0
0..3
RW
VS_CD
0
0..7
RW
VS_CD
0
0,1,2,3
Function
Window Shift For Fine Error Calculation
100: -4 clock cycles
000: no offset
011: +3 clock cycles
H Slicing Level Threshold
00: 50%
01: 31%
10: 37%
11: 25%
CVBSLP Bandwidth
00: very small
01: small
10: wide
11: very wide
CVBSFE Bandwidth
00: very small
01: small
10: wide
11: very wide
AGC Peak Dark Threshold
00: 140
01: 124
10: 104
11: 70
Calculate MINV
0: every line
1: over 4 lines
Note: set to '0' for standard CVBS and '1' for component
input
Limit Threshold to MINV
0: no limitation
1: limit
Coarse Error Threshold
00: +-255
01: +-192
10: +-160
11: +-128
Lowpass Coeff for Threshold Value
00: very strong
01: strong
10: weak
11: filter off
Fine Error Calculation
00: normal syncs
01: short syncs
10: new algorithm
11: fine error disabled
Peak White Reduction Limit
000: 63
001: 48
010: 32
011: 24
100: 16
101: 12
110: 8
111: 4
Noise Reduction Threshold
00: 256
01: 384
10: 512
11: 640

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