Sony PLM-A55E Service Manual page 35

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