Pioneer LD-V4300D Service Manual page 96

No. Symbol Description
12
vxo
1 Crystal oscillator terminal
13 GND 3 GND terminal of APC, HUE and VXO.
14 SCOUT
Subcarrier output terminal
15 GND2 GND terminal of the demodulator and the Y/C mixer.
16 ROUT
R output terminal
17 GOUT G output terminal
18 BOUT
B output terminal
DL amplifier input terminal.
19 DLA IN Ground this terminal for the NTSC mode.
Connect to the lHDL OUT terminal for the PAL mode.
NTSC/P AL mode switching and DL amplifier gain adjustment terminal.
By changing the voltage on this terminal, the mode can be changed from NTSC to PAL and
20 DLA BIAS
vice versa, and the gain of the DL amplifier in the PAL mode can be adjusted.
V20
:ii
0.8V :
NTSCmode
2.0V :ii V20 :ii 2.8V :
PAL mode
Variable range : ±3dB or more
Chroma output terminal.
21 CHROMA OUT Connect to V cc2 for the NTSC mode.
Connect to the lHDL IN terminal for the PAL mode.
22 Vee 2 Power terminal of demodulator and Y/C mixer.
Chroma amplifier gain adjustment terminal.
The gain of the chroma amplifier can be adjusted by changing the voltage on this terminal.
23 CHROMA ADJ V23
:ii
0.8V : Monochrome mode (free run)
2.0V
~
V23 :ii 3.0V : Color mode
Variable range : -20 to 0dB or more
24 CHROMA IN
Chroma signal input terminal.
The standard input level is burst amplification of 143mVp-p.
25 ACC TC ACC (automatic color control) time constant terminal.
26 TC2 Pedestal clamp time constant terminal
27 VIDEO IN
Video signal (luminance and synchronous signals) input terminal.
The standard input level is 0.36Vp-p.
-
28 TC 1
Clamp time constant terminal for SYNC SEP.
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