11
CIRCUIT
2) CHROMINANCE SIGNAL PROCESSING (PB)
The down-converted chrominance signal is obtained from PB ENVE signal by LPF first. And then the signal is up-
converted to 4.43MHz by the MAIN CONVERTER.
The redundant harmonics is filtered out by the BPF, and then the signal is applied to the CCD IC to reduce the
chrominance crosstalk.
The NTSC PLAYBACK is possible on PAL/SECAM SYSTEM by the NAP circuit, the activation of which is determined
by GROUP 7, MSB 7-8 bits.
The signal is then applied to Color Noise Canceller and mixed together with the luminance signal.
15
50
1
48
3
+
13
52
46
45
13
PRE-AMP
7th PIN
LPF
ACC AMP
MAIN CONV
BPF2
BPF1
2H DELAY
(LC89977M)
Y/C MIX
CNC
BPF
NAP
KIL
LPF
AMP
FIG.6 Chrominance Signal Processing (PB)
Содержание DV-K88 series
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Страница 73: ...70 CIRCUIT DIAGRAMS 9 3 Syscon and Logic Circuit Diagram...
Страница 74: ...71 CIRCUIT DIAGRAMS 9 4 AV SW Circuit Diagram...
Страница 75: ...72 CIRCUIT DIAGRAMS 9 5 IF PDC Circuit Diagram TM...
Страница 76: ...73 CIRCUIT DIAGRAMS 9 6 If Module Circuit Diagram A2...
Страница 77: ...74 CIRCUIT DIAGRAMS 9 7 If Module Circuit Diagram Nicam...
Страница 78: ...75 CIRCUIT DIAGRAMS 9 8 Hi Fi Pre Amp Circuit Diagram...
Страница 79: ...76 CIRCUIT DIAGRAMS 9 9 Video Audio Circuit Diagram...
Страница 80: ...77 CIRCUIT DIAGRAMS 9 10 Remocon Circuit Diagram...
Страница 81: ...SECTION 10 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW 78 P C B LOCATION 10 1 PCB Main...
Страница 82: ...80 P C B LOCATION 10 3 PCB Logic DV K8K S S Series DV K86 S S Series DV K82 S S Series...
Страница 83: ...81 P C B LOCATION DV K88 S S Series...
Страница 84: ...SECTION 11 DISASSEMBLY 83 DISASSEMBLY 11 1 Packing Ass y...
Страница 85: ...84 DIAGRAMS DV K88 Series DV K82 Series DV K8K Series DV K86 Series 11 2 Front Panel Assembly...