Sharp 21V-FS700S Service Manual page 21

NO ADJUSTMENT POINT
3 SUB-BRIGHTNESS
(to be done after
screen, white
balance adj)
(I2C BUS CONTROL)
4 SUB-CONTRAST
(to be done after
screen, white
balance adj,
sub-brightness adj)
(I2C BUS CONTROL)
BEAM
5
CURRENT
CHECK
ADJUSTMENT CONDITION / PROCEDURE
(1) In Window Pattern Signal condition.
(2) Using Minolta Color Analyzer CA-100, let the
gun point at Dark White position (as attach
drawing), adjust SUB-BRI Bus data until:
Service Luminance
mode (cd/m2) Upper limit
Enable 1.5
Disable 1.5
(1) In Window Pattern Signal condition.
(2) Using Minolta Color Analyzer CA-100, let
the gun point at White position (as attach
drawing), adjust SUB-CON Bus data until :
Service Luminance
mode (cd/m2) Upper limit
Enable 150.0
Disable 150.0
(1) Receive the "Monoscope Pattern" signal.
(2) Press R/C to set Picture NORMAL condition.
(3) Connect the DC miliammeter between TP 603
( + ) & TP 602 ( - ) (Full Scale: 3mA Range).
(4) Beam current must be within : 1000 ± 100µA
3 – 18
Tolerance (cd/m2)
Lower limit
+0.5 -0.5
+1.5 -1.0
Tolerance (cd/m2)
Lower limit
+10 -10
+20 -10
21V-FS700S
WAVEFORM OR OTHERS
WINDOW PATTERN SIGNAL
Dark White
WINDOW PATTERN SIGNAL
White