Specific Service Instructions - JVC LT-26D50BJ Service Manual

2.1 FEATURES
DVB-T (DIGITAL TERRESTRIAL BROADCASTING)
This TV can receive both Digital terrestrial broadcasting (DVB-
T) and Analogue terrestrial broadcasting.
D.I.S.T. (Digital Image Scaling Technology)
This system uses line interpolation to double the number of
scanning lines and achieve high resolution, flicker-free picture.
COLOUR MANAGEMENT
This function ensures dull colours are compensated to
produce natural hues.
PICTURE MANAGEMENT
This function makes it easier to see the dark areas when a
picture has many dark areas, and makes it easier to see the
bright areas when a picture has many bright areas.
d u p a
2.2 MAIN DIFFERENCE LIST
Item
FRONT PANEL COLOUR
2.3 21-PIN EURO CONNECTOR (SCART) : EXT-1 / EXT-2
Pin No. Signal designation
1 AUDIO R output
2 AUDIO R input
3 AUDIO L output
4 AUDIO GND
5 GND (B)
6 AUDIO L input
t o r
7 B input
8 FUNCTION SW
(SLOW SW)
9 GND (G)
10 SCL / T-V LINK
11 G input
12 SDA
13 GND (R)
14 GND (YS)
15 R / C input
16 Ys input (FAST SW)
17 GND (VIDEO output)
18 GND (VIDEO input)
19 VIDEO output
20 VIDEO / Y input
21 COMMON GND
(P-P= Peak to Peak, B-W= Blanking to white peak)
[Pin assignment]
20 18 16 14
21 19 17 15
1-6 (No.YA205)
SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

LT-26D50BJ
BLACK
Matching value
500mV(rms) (Nominal), Low impedance
500mV(rms) (Nominal), High impedance
500mV(rms) (Nominal), Low impedance
500mV(rms) (Nominal), High impedance
700mV , 75Ω
(B-W)
Low : 0V-3V
High : 8V-12V, High impedance
700mV , 75Ω
(B-W)
R : 700mV , 75Ω
(B-W)
C : 300mV , 75Ω
(P-P)
Low : 0V-0.4V, High : 1V-3V, 75Ω
1V (Negative sync), 75Ω
(P-P)
1V (Negative sync), 75Ω
(P-P)
12 10 8 6 4 2
13 11 9 7 5 3 1
ZOOM
This function can change the screen size according to the
picture aspect ratio.
DIGITAL VNR
This function cuts down the amount of noise in the original
picture.
SUPER DIGIPURE
This function uses the latest in digital technology to give you a
natural-looking picture.
MOVIE THEATRE
This function displays a cinema film picture more smoothly and
naturally on the screen.
3D CINEMA SOUND
You can enjoy sounds with a widerambience.
EXT-1
Used (TV OUT)
Used (R1)
Used (TV OUT)
Used
Used
Used (L1)
Used
Used
Used
Not used
Used
Not used
Used
Used
Used (R)
Used
Used
Used
Used (TV OUT)
Used
Used
LT-26D50SJ
SILVER
EXT-2
Used (LINE OUT)
Used (R2)
Used (LINE OUT)
Used
Used
Used (L2)
Used
Used
Used
Used
(SCL2 / TV-LINK)
Used
Used (SDA2)
Used
Not used
Used (C2/R)
Used
Used
Used
Used (LINE OUT)
Used
Used