BenQ V37X Product Service Manual page 27

(sync input for RGB mode)
21 Common Ground
(1) Pin 20 video output : Tuner video from the last selected program.
(2) Pin 1&3 audio output : Tuner audio from the last selected program.
3.2.2 Signal support timing
Lines per frame Horizontal frequency(KHz)
625
625
525
625
3.2.3 AV1 RGB Handling with Fast Blanking :
Priority Level :
1. TV OSD or text subtitles
2. AV1-RGB
3. TV Video
The fast blanking allows to insert RGB boxes on top of the tv video signal :
(1) INTERNAL SYNC
-
Vertical frequency(Hz)
15.625
15.625
15.734
15.625
27
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System
50 PAL(B,G,H,D,I)
50 SECAM
60 PAL-M
50 PAL-N