21K-FD5RU
3 – 21
7. SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST (2) ADJUSTMENT
8. PAL CHROMA ADJUSTMENT
9. NTSC CHROMA ADJUSTMENT
NO
ADJUSTMENT POINT
ADJUSTMENT CONDITION / PROCEDURE
WAVEFORM OR OTHERS
3
SUB-BRIGHTNESS
(1) In Window Pattern Signal condition.
(to be done after screen,
(2) Using Minolta Color Analyzer CA-100, let the gun point at
Dark White
position
white balance adj)
(as attach drawing), adjust
V06
Bus data until
LUMINANCE Y
as below,
(I2C BUS CONTROL)
LUMINANCE Y = 3 ± 0.2 cd/m2 (21K-FD5RU )
4 SUB-CONTRAST
(1) In Window Pattern Signal condition.
(to be done after screen,
(2) Using Minolta Color Analyzer CA-100, let the gun point at
White
position (as
white balance adj,
attach drawing), adjust
V04
Bus data until
LUMINANCE Y
as below,
sub-brightness adj)
(3) Repeat SUB-BRIGHTNESS and SUB -CONTRAST adj. until all in spec.
(I2C BUS CONTROL)
LUMINANCE Y = 200 ± 10 cd/m2 (21K-FD5RU )
White
5
Beam Current Check
(1) Receive the "Monoscope Pattern" signal, SET AS Dynamic Mode.
(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.
(21K-FD5RU )
WINDOW PATTERN SIGNAL
WINDOW PATTERN SIGNAL
Dark White
(4) After adjustment , if V04
≤ 66 .
please re-adjust from Screen adjustment.
This is to avoid low control range for user contrast adjustment.
Summary of Contents for 21K-FD5RU
Page 21: ...21K FD5RU 3 18 2 ADJUSTMENT 1 PIF ADJUSTMENT CHECKING 2 PURITY ADJUSMENT ...
Page 22: ...21K FD5RU 3 19 3 CONVERGENCE ADJUSTMENT 4 H VCO VIF VCO S TRAP for ADJUSTMENT ...
Page 27: ...21K FD5RU 3 24 15 FUNCTION OPERATION CHECKING 2 VIDEO AUDIO CONTINUED ...
Page 59: ...21K FD5RU 5 2 TROUBLE SHOOTING Continued pin 11 pin 13 of SC304 ...
Page 60: ...21K FD5RU 5 3 TROUBLE SHOOTING Continued I I I I ...
Page 62: ...21K FD5RU 7 1 CHAPTER 7 CHASSIS LAYOUT 1 CHASSIS LAYOUT A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Page 64: ...21K FD5RU 8 2 10 11 12 13 14 15 16 17 18 19 ...
Page 66: ...21K FD5RU 8 4 4 BLOCK DIAGRAM NICAM UNIT A C B D 1 2 3 4 5 6 7 8 9 10 ...
Page 70: ...21K FD5RU 11 2 3 SCHEMATIC DIAGRAM NICAM UNIT A C B D 1 2 3 4 5 6 7 8 9 10 ...
Page 71: ...21K FD5RU 11 3 4 SCHEMATIC DIAGRAM MAIN UNIT A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Page 72: ...21K FD5RU 11 4 10 11 12 13 14 15 16 17 18 19 ...
Page 74: ...21K FD5RU 12 2 10 11 12 13 14 15 16 17 18 19 ...
Page 75: ...21K FD5RU 12 3 2 MAIN UNIT Chip Parts Side A C B D E F G H 1 2 3 4 5 6 7 8 9 10 ...
Page 76: ...21K FD5RU 12 4 10 11 12 13 14 15 16 17 18 19 ...
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