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參數(shù)資料
| 型號(hào)： | TA8865BN |
| 元件分類(lèi)： | 接收器 |
| 英文描述： | AUDIO/VIDEO DEMODULATOR, PDIP36 |
| 封裝： | 0.500 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-36 |
| 文件頁(yè)數(shù)： | 7/27頁(yè) |
| 文件大?。?/td> | 571K |
| 代理商： | TA8865BN |
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TA8865BN
2001-02-21 15/27
COIL ADJUSTMENT PROCEDURE
Before making measurements, adjust all coils in accordance with the following procedure :
1.
PIF VCO coil :
Set pin 34 (L / BG) to ground. Input SIG1 to Tp8 (PIF Input). While observing Tp1 (AFT
Output), adjust the PIF VCO coil. Find the area at which Tp1 voltage changes abruptly.
Within this range, further adjust the PIF VCO coil until Tp1 voltage reaches 4.5V area
voltage.
2.
SIF VCO coil :
Set voltage of pin 34 (L / BG) to 5V and pin 23 (MODE SEL) to ground. In no-input state,
set Tp5 (AGC Filter) to 3V, and measure the Tp22 (S APC FIL.) voltage (Vp1).
Then remove 3V from Tp5 and input SIG2 to Tp7 (B / G SIF Input). Adjust the SIF VCO coil
so that the Tp21 voltage reaches Vp1.
3.
SIF coil
:
Set pin 35 to ground and input SIG3 to Tp20 (Limiter Input).
Then set the sound mute switch to open and measure the Tp2 (Audio Output) voltage.
Adjust the SIF coil so that the Audio Output DC voltage reaches 4.0V.
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| TA8867AN | SPECIALTY CONSUMER CIRCUIT, PDIP48 |
| TA8867BN | SPECIALTY CONSUMER CIRCUIT, PDIP48 |
| TA8874Z | SPECIALTY CONSUMER CIRCUIT, PZIP21 |
| TA8876FA | AUDIO/VIDEO DEMODULATOR, PDSO30 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TA8867AN | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:VIDEO, CHROMA, AND SYNC. SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS |
| TA8867BN | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:VIDEO, CHROMA, AND SYNC. SIGNAL PROCESSING IC FOR PAL/NTSC-SYSTEM COLOR TELEVISIONS |
| TA8874Z | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR DOMESTIC TV/VTR |
| TA8874Z_01 | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:SOUND MULTIPLEX BROADCAST DEMODULATOR IC FOR DOMESTIC TV / VTR |
| TA8876FA | 制造商:TOSHIBA 制造商全稱(chēng):Toshiba Semiconductor 功能描述:FOR LCD TVS, PIF, QIF, AND SIF SYSTEMS |
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