Ver3.7
00/01/28 43
SECAM STAGE
Note
Items/Symbols
Bus conditoins
Measurement methods
SE1
Bell
Monitor
output
voltage
/ embo
RGB Mute:0
TEST Mode:
00001000
Sub Add.”1A”:
X0111XXX
Others:Preset
(1) Input a 75% color bar signal (200mVp-p at R ID) into Pin43.
(2) Set BUS data so that “
(3) TEST Mode” is 00001000 and Sub address “0A” is X0111XXX.
(3) Measure R-Y ID amplitude at Pin13, that is "ebmo".
SE2
Bell filter f0
/ f0B-C
RGB Mute:00
TEST Mode:
00001000
Sub Add.”0A”:
X0111XXX
Bell f0:0
Y Mute:1
Others:Preset
(1) Input a 20mVp-p sine wave whose frequency is sweep into
Pin43.
(2) Set BUS data so that “TEST Mode” is 00001000 and Sub
address “0A” is X0111XXX.
(3) Measure the frequency at which Pin13 output is the biggest,
that is "f0BEL" .
(4) Calculate : "f0B-C"=f0BEL-4,286 [kHz].
SE3
Bell filter f0 variable
range
/ f0B-VR
RGB Mute:00
TEST Mode:
00001000
Sub Add.”0A”:
X0111XXX
Bell f0:1
Y Mute:1
Others:Preset
(1) Input a 20mVp-p sine wave whose frequency is sweep into
Pin43.
(2) Set BUS data so that “TEST Mode” is 00001000 and Sub
address “0A” is X0111XXX.
(3) Set BUS data so that “Bell f0” is +35kHz.
(4) Measure the frequency at which Pin 13 output is the biggest,
that is f0BELH.
(5) Calculate : " f0B-VR "= f0BELH -4,286 [kHz]
SE4
Bell filter Q
/ QBEL
RGB Mute:00
TEST Mode:
00001000
Sub Add.”0A”:
X0111XXX
Y Mute:1
Others:Preset
(1)Input a 20mVp-p sine wave whose frequency is sweep into
Pin43.
(2)Set BUS data so that “TEST Mode” is 00001000 and Sub
address “0A” is X0111XXX.
(4) Observe the frequency response of Pin13 output.
(5) Calculate : "QBEL = (MAX-3dB Band Width)/f0BEL.
SE5
Color
difference
output amplitude
/ VBS
/ VRS
RGB Mute:00
Uni-Color:63
Y Mute:1
Others:preset
(1) Input a 75% color bar(200mVp-p at R ID) into Pin43.
(2) Measure the R-Y output amplitude at Pin20, that is "VRS".
(3) Measure the B-Y output amplitude at Pin22, that is "VBS".
SE6
Color
Difference
Relative Amplitude
/ R/B-S
(1)Calculate : "R/B-S"=VRS/VBS
SE8
Color Difference S/N
Ratio
/ SNB-S
/ SBR-S
RGB Mute:00
Uni-Color:63
Y Mute:1
Others:preset
(1) Input a 200mVp-p non-modulated chroma signal into Pin43.
(2) Measure the amplitude of noise on Pin20, that is nR.
(3) Measure the amplitude of noise on Pin22, that is nB.
(4) Calculate : "SNB-S"=20log(22VBS/nB)
"SNR-S"=20log(22VRS/nR)