Sony PLM-A55E, Service Manual

Page: 35 / 70

– 35 –
Pin No. Pin Name I/O Function
35 X3D
I
3D mode selection signal input from the D/A converter (IC402)
“H”: normal mode, “L”: 3D mode
36 TEST7
I
Input terminal for the test (Normally: open)
37 TEST8
I
Input terminal for the test (Normally: open)
38 GND2
—
Ground terminal (analog system)
39 R OUT
O
R signal (primary color signal) output to the left and right LCD units
40 FB R
I
For DC voltage feedback of R signal (pin
#ª
)
41 G OUT O G signal (primary color signal) output to the left and right LCD units
42 FB G
I
For DC voltage feedback of G signal (pin
$¡
)
43 B OUT
O
B signal (primary color signal) output to the left and right LCD units
44 FB B I For DC voltage feedback of B signal (pin
$£
)
45 VCC2
—
Power supply terminal (+12V) (analog system)
46 BLKLIM
I
For setting the black peak limiter level of RGB output
47 VCC1 — Power supply terminal (+5V) (analog system)
48 REG
O
Ground for a smoothing capacitor in internal constant-voltage power supply circuit
49 B-YIN
I
50 R-YIN I
51 COUT
O
Chroma signal output terminal (for 1H delay in PAL mode) Not used (open)
52 HUE/RST
I
Hue adjustment terminal (also used for reset input) Not used (open)
53 COLOR I Color adjustment terminal Not used (open)
54 XVXO
I
VXO crystal oscillator connection terminal (3.58 MHz) Not used (open)
55 R-BRT
I
R brightness adjustment signal input from the D/A converter (IC402)
56 B-BRT I B brightness adjustment signal input from the D/A converter (IC402)
57 RGB GAIN
I
For adjusting the amplitude gain of RGB output (fixed value is input in this set)
58 GAMMA2
I
For adjusting the voltage gain transition point gamma 2 (fixed value is input in this set)
59 GAMMA1 I For adjusting the voltage gain transition point gamma 1 (fixed value is input in this set)
60 BRIGHT
I
RGB brightness adjustment signal input from the D/A converter (IC402)
61 CONTRAST
I
Contrast adjustment signal input from the D/A converter (IC402)
62 CIN I Video signal (chroma signal) input terminal Not used (open)
63 R-GAIN I
R gain adjustment signal input from the D/A converter (IC402)
(for fine adjustment of R signal contrast)
64 B-GAIN
I
B gain adjustment signal input from the D/A converter (IC402)
(for fine adjustment of B signal contrast)
Input terminal of color difference demodulating circuit (in DPAL mode) or input of color
difference signal (in SPAL mode) Open in NTSC mode