51
31
8
6
3
18
18
16
5
28
IC301
IC151
LINE
JACK
INPUT SELECT
TMI
OSD
ICS01
TMI
LINE JACK
VIDEO
OUT
AGC AMP
QV/QH INSERT
VIDEO AMP
EE MODE PROCESS
B. Color Signal Processing
The FM signal input to pin 11 of IC301, which is originally come from pin 10 of ICA01, passes through 1.3MHz LPF to pass only
629KHz color signal down-converted in record mode.
ACC (Automatic Color Control) AMP stabilized the color signal.
The stabilized signal is input to main converter and mixed with the 4.21MHz signal come from sub-converter.
Its output is 4.21MHz±629KHz. The mixed signal is input to 3.58 BPF in order to pass 3.58MHz color signal only.
In Comb Filter, the signal 1H-delayed by CCD IC is added to the original video signal.
During this process, crosstalk between adjacent tracks is eliminated.
The signal out of comb filter is input to Burst Deemphasis which reduces the 6dB boosted burst level (in record mode).
The reduced signal is mixed with luminance signal, and the mixed signal is output to pin 39 of IC301 through Video Amp.
Summary of Contents for DV- K504N-SJ
Page 35: ...34 AC001 K584NZ SJ M K584NZ SG M only...
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Page 60: ...59 ELECTRICAL ADJUSTMENTS Fig 1 Circuit Board Location...
Page 92: ...91 INTERCONNECT WIRING DIAGRAM K584N K484N K384N K284N...
Page 93: ...92 POWER SUPPLY SCHEMATIC DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 95: ...94 2HD HEAD AMP SCHEMATIC DIAGRAM K384N K284N K304N...
Page 96: ...95 4HD HEAD AMP SCHEMATIC DIAGRAM K584N K484N K504N...
Page 97: ...96 VIDEO AUDIO SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 98: ...97 PIF INPUT SELECTOR SCHEMATIC DIAGRAM 9V USE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 100: ...99 TIMER SYSCON SCHEMATIC DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 101: ...100 POWER SUPPLY BLOCK DIAGRAM FREE VOLTAGE K584NY SJ M K584NZ SJ M K584NZ SG M...
Page 103: ...102 2HD HEAD AMP BLOCK DIAGRAM K384N K284N K304N...
Page 104: ...103 4HD HEAD AMP BLOCK DIAGRAM K584N K484N K504N...
Page 105: ...104 VIDEO AUDIO BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 106: ...105 PIF INPUT SELECTOR BLOCK DIAGRAM K584N K484N K384N K284N K504N K304N...
Page 109: ...108 MAIN PCB 2HEAD 4HEAD...