Samsung DVD-812 Service Manual page 68

5-7-4 Scart Jack Output
The SCJ1 of scart jacks is used for connecting a TV or other display devices and the SCJ2 for a VCR of other play-
ers. When the DVD player is turned on, the RGB,CVBS,or S-VEDEO is outputted to SCJ1 and CVBS to SCJ2.
When the player is turned off, CVBS signal of the TV is inputted and CVBS or RGB of a VCR inputted via SCJ2 is
outputted. In case of SCJ2,the reverse signal flow to that. Switching of power ON/OFF is controlled by SCIC1,
SCIC2 and SCIC3.
The control signal(Pin 9, 10, 11) of SCIC5 is outputted from Pin27 (NEC),Pin100(Sanyo) of FIC1 and connected to
the base of SCQ8. The control signal of SCIC1 (pin 9, 10, 11), SCIC2 (pin 9, 10, 11),S CIC3 (pin 9,1 0) is also out-
putted from Pin 27 of FIC1 and inverted again by SCQ8.
According to the characteristics that SCART jack is supplied same pins for the output of CVBS signal and Y signal
and for the R signal and C signal, Ziva 4.1(pin 151) lets the user select two signal in Setup menu.
This control signal of the switch is outputted from Pin 39 (NEC), Pin92 (Sanyo) of FIC1.
The video signal selected by switch is amplified by SIC4 and SIC6 and outputted through the SCART jack.
The scart jack has the functional select signal[slow switching] that the TV can select automatically RF and the
external video signal.
SCQ3 to SCQ7 are related to the circuit to point, FIC1 (pin 100, 94 :NEC, pin 27,41 : Sanyo) controls.
When the TV aspect ratio is 4:3 or 16:9, it is outputted 4.5~7V or 9.5 ~12V each. But when the DVD video source is
16:9 and 16:9 wide is selected in Setup menu, 4.5~7V (SCJ1 pin 8) is outputted. Otherwise, 9.5~12V is outputted.
When the player is turned off, the TV works with functional selection by output signal of VCR in relation of SCQ8
and SCQ10. The RGB control signal is outputtd that the TV can select RGB or CVBS.
SCQ14 ~ SCQ16 are in charge of RGB control and controlled by FIC1[pin 91 (Sanyo), pin39 (NEC )].
When the player is turned off, receives from VCR input(Pin 37 of SCJ2) and buffers in this and then outputs to
Pin 16 of SCJ1.
ZIC1 (ZiVA-4.1)
A/V Decoder
Samsung Electronics
DVD_Y
DVD_CVBS
CVBS_TV_IN
DVD_R/C
R_VCR_IN
DVD_G
G_VCR_IN
DVD_B
B_VCR_IN
DVD_AUDOI_R
SCIC1, 2
DVD_AUDIO_L
Fig. 5-32 Scart Output Block Diagrsm
CVBS_VCR_IN
SCIC3
(14053) (NJM2267)
Switch
SCIC5
(14053) (BA7660)
Switch
(14053)
Switch
CVBS_TV_IN
CVBS/Y_TV_OUT
SCIC4
R/C_TV_OUT
CVBS_VCR
G_TV_OUT
AMP
_OUT
B_TV_OUT
R/C_TV
_OUT
SCIC6
G_TV_OUT
B_TV_OUT
AMP
R_VCR_IN
G_VCR_IN
B_VCR_IN
Circuit Descriptions
SCJ1 (TV)
SCJ1 (VCR)
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