Teac EU-34T, Руководство по обслуживанию

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STV 2118B
BUS CONTROLLED PAL/SECAM/NTSC TV PROCESSOR
GENERAL DESCIRIPTION
The STV2118B is fully bus controller IC for TV luma, chroma and deflection processing.
Used with STV8224 (PIF/SIF/swicthes), TDA 1771 or TDA8174 (frame booster), STV2180(delay line), it allows to
desing a PAL/SECAM/NTSC (BGDKILMN) set with very few external components and no adjustment.
FEATURES :
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I 2 C Bus Control Of All Functions
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Integrated Fýlters (Trap,Badpass,Cloche)
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Integrated Lumýnance Delay Lýne
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PAL/SECAM/NTSC Chroma Demodulators
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Automatýc Cut-Off Current Loop
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Two PLLs Horýzontal Deflection
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Vertýcal Cont down
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Very Few External Components
PINNING
1- GND2 Chroma/Scannýng Ground
2- CXTL2 3.58 MHz XTAL
3- CXTL1 4.43 MHz XTAL
4- CLPF Chroma Loop Filter
5- ACC Acc Control Capacýtor
6- SDA Data Wýre I
2
C Bus
7- SCL Clock Wýre I
2
C Bus
8- FTUN1 Fýlter Tunýng
9- FTUN2 Cloche Fýlter Tunýng
10- VOL Volume and Mute Control Voltage
11- SWI If Standart and swýtch selectýon
12- BOS D Os d Blue Input
13- GOS D Os d Green Input
14- ROS D Os d Red Input
15- FBOS D Os d RGB Insertýon
16- BEXT External Blue Input
17- GEXT External Green Input
18- REXT External Red Input
19- FBEXT Extrenal RGB Insertýon
20- Y/CVBS CVBS or Lumýnance Input
21- GND1 Bus/Výdeo Ground
22- V
CC1
Výdeo Supply
23- CHR/S VHS Cromýnance INPUT/SVHS Selectýon
24- CG Green Cut-Off Capacýtor
25- CB Blue Cut-Off Capacýtor
26- CR Red Cut-Off Capacýtor
27- BO Blue Output
28- GO Green Output
29- RO Red Output
30- ICAT Cathode Current Measurement
31- BCL Beam Current Lýmýter
32- SXTL 503 kHz Ceramýc
33- SLPF CScanning Loop Filter
34- VAMP Amplýtude Control Voltage
35- VOUT Vertýcal Output
36- HOUT Horýzontal Output
37- LFB/SC Lýne Flyback INPUT/SANDCASTLE Output
38- BYI B-Y Input
39- RYI R-Y Input
40- RYO R-Y Output
41- BYO B-Y Output
42- V
CC2
Chroma/Scannýng/Bus Supply