Specific Service Instructions - JVC LT-26F80BU Service Manual

2.1 FEATURES
HDMI (High Definition Multimedia Interface)
HDMI is the first industry supported, uncompressed,
all digital audio/video interface. By connecting an
HDMI compatible device, high definition pictures can
be displayed on your TV in their digital form.
3D COMB
3D Comb is used to improve colour transitions and colour quality
of pictures.
2.2 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
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
21 19 17 15
1-6 (No.YA534)

SPECIFIC SERVICE INSTRUCTIONS

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)
14 12 10 8 6 4 2
13 11 9 7 5 3 1
SECTION 2
T-V LINK
When you have a T-V LINK compatible VCR connected to the
EXT-2 Terminal on the TV,it is easier to set up the VCR and to
view videos.
ZOOM
This function can change the screen size according to the
picture aspect ratio.
OFF TIMER
This function can set the TV to automatically turn off after a set
time.
COLOUR SYSTEM
If the picture is not clear or no colour appears, change the
current colour system to another colour system.
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 (V1)
Used
EXT-1 EXT-2
Used (LINE OUT)
Used (R2)
Used (LINE OUT)
Used
Used
Used (L2)
Used
Used
Used
Used (TV-LINK)
Used
Not used
Used
Not used
Used (C/R)
Used
Used
Used
Used (LINE OUT)
Used (Y/V2)
Used