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Philips V2020/1/2/3 VCRs AV conector

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The Philips VCRs, V2020, V2021, V2022 & V2023 have a 20-pin A/V connector through which all signals must be connected. Philips provided a breakout box " The 22AV5530" for this purpose.


20 pin Philips A/V special connector  at the Philips VCR
The circuitary in the 22AV5530 is quite complex and provides switching functions not included in the VCRs. It provides interface not only to audio and composite video input and output signals but serial control data intended for interface to Philips camera units.
f you wish to get External Video in to a V2020/1/2/3 then the signal needs to be amplifed and fed to Pin 17. Similarly Video Output from Pin 18 needs to be buffered before it can drive a 75 ohm line.
Pin Function
1 External Audio Input.
2 Audio Output. Internal feed to UHF Modulator.
3 +12Vd.c. Output.
4 Test Point for Bias adjustment
5 Camera Remote Out
6 External ON (XON): Goes High when channel "00" is selected.
7 Remote in. (Data via Camera)
8 Voltage Actuator Added.
9 Head to Frame Added Pulse.
10 Ground for Head Frame Added.
11 Muting: Low is no signal applied.
12 NOT REC: Goes low in Record mode,
13 Mute All: Goes low when External Video In is selected.
14 Mute Sound: Goes Low when External Audio In is selected.
15 Playback envelope track sensing. (Envelope Curve)
16 Ground for Pin 15.
17 External Video Input.
18 External Video Output.
19 NOT PB. Goes low in Playback mode.
20 Ground for Pin 1.

Источник: www.palsite.com

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