Specific Service Instructions - JVC LT-26A60BU Service Manual

2.1 FEATURES
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.
PICTURE MODE
This function can adjust the picture settings automatically.
ZOOM
This function can change the screen size according to the
picture aspect ratio.
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
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
SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

LT-26A60BU
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
3D SOUND
This function can enjoy Surround sound with a "live" effect by
using the 3D SOUND.
DIGITAL VNR
This function cuts down the amount of noise in the original
picture.
COLOUR SYSTEM
If the picture is not clear or no colour appears, change the
current colour system to another colour system.
LT-26A60SU
SILVER
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-26A60SJ
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
(No.YA314)1-7