14B-S5
21B-S5
Data can be UP/
1 VFig. 6Fig. 7Y: 0.310Y: 0.275
LOWHIGHDRI-BW=�DRI-BS�-5DRI-BW=�DRI-BS�-7
KX: 0.300KX: 0.272
°°DOWN by Volume key.°KDRI-GW=�DRI-GS�-5°KDRI-GW=�DRI-GS�-7
1 2 3 4 5
3.0Vdc0
1, 2 and 3 are in same black level.Refer to Page ????. * 7,500*12,300(MINOLTA COLOUR ANALYZER CA-100) *Note:Above 14"10 cd/m2200 cd/m2 20"/21"10 cd/m2120 cd/m2* 7,500* 12,300
A.A
mm
K or
°
100
?
1,100
9-2
A).A).
mmmA(14") .
0.1 Vdc.A.
?m 100
Range: 1 V/Div. (DC) Sweep: 5 msec/Div.?
K (white)..
°warming up the unit for 30 minutes or longer with a beam current over 700 (For 14", the beam current should be over 500
GS�-7*, DRI-BW=�DRI-BS�-7*
with NO VIDEO signal.IC801.(TP851 (14")/TP852 (20"/21"))reach 3.0 Crosshatch pattern with 5 black level windows)that the line 1, 2 and 3 have the same darkness wherelse line 4 is slightly brighter than line 1, 2 and 3 and finally line 5 will be the brighter than line 4.nal.TP602 (-) and TP603 (+). (14" around 800 (White Point-G), OWPB� (White Point-B) data to have a colour temperature of 12,3007,500* Note and set BRIGHTNESS Y by generator, to ** 10 cd/m2 (MINOLTA CA-100) by reducing LUMINATE Y signal.temperature. Then go back NORMAL mode (HIGH BRIGHT**) to check colour temperature. If out range, back to (1)Note:This adjustment must be done afterdata, after finishing DRI-BS and DRI-GS DRI-RW=32 (FIXED), DRI-GW=�DRI-DRI-RC=25, DRI-BC=�DRI-BS�, DRI-GC=�DRI-GS�-7*(+) and TP602 (�). (Full Scale: 3 mA Range)(21") 800
1.Switch TV to VIDEO mode, BLUE BACK OFF,2.Press R/C to set Picture Normal condition. 3.Connect the oscilloscope to Red OUT from4.Adjust SCREEN VR, so that the tip of signal1.Call OSUB-BRI� in service mode. (Receive2.Adjust the OSUB BRIGHT� bus data in order1.Receive the OWHITE� pattern with BURST sig-2.Press R/C to set Picture NORMAL condition. 3.Connect the DC miliammeter between the4.Check Beam current should be around 1,100 5.Set it to service mode and adjust the OWPG�6.Receive OWHITE� pattern, WITH BURST signal,7. Adjust OCUT-R� & OCUT-G� to get desired colour*Adjust DRI-GC/GW, DRI-BC/BW as following1.Receive the OMonoscope Pattern� signal. 2.Press R/C to set Picture NORMAL condition. 3.Connect the DC miliammeter between TP6034.Beam current must be within
2C BUS2C BUS2C BUS
CRT CUTOFF ADJUSTMENT (I CONTROL)SUB- BRIGHTNESS ADJUSTMENT (ICONTROL)WHITE BALANCE SERVICE MODE ADJUSTMENT (ICONTROL)MAXIMUM BEAM CHECK
1234
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENTNO.Adjustment partAdjusting procedure and conditionsWaveform and others
!
cm
B G RR G BAbout 100Wedge "c"m40(14")
20c(21")
CRT neck
RGBBGR
BGRRGB6-pole magnet
Fig. 5-1Fig. 5-2Fig. 5-3Fig. 5-4Wedge "a"Fig. 5-5Fig. 5-6
Lacquer
4-pole magnet
!
B G RR G BLacquer
About 100Wedge "b"Purity magnet
9-1
swing the deflection coil upward.Oc� and swing the deflection coil downward.swing the deflection coil rightward.swing the deflection coil leftward.
mode.angle in order to superpose the blue and red colours.angle in order to superpose the green colour over the blue and red colours.screen in the following steps. a)Fig. 5-1: Drive the wedge at point Oa� andb)Fig. 5-2: Drive the wedge at points Ob� andc)Fig. 5-3: Drive the Oc� wedge deeper andd)Fig. 5-4: Drive the Ob� wedge deeper andtape over them.magnet unit (purity, 4-pole, 6-pole magnets) and magnet unit lock screw.Finally received the Red-only and Blue-only signals to make sure there is no other colours on the screen.
CONVERGENCE ADJUSTMENT1.Receive the OCrosshatch Pattern� signal. 2.Using the remote controller, call NORMALStatic convergence 1.Turn the 4-pole magnet to a proper opening2.Turn the 6-pole magnet to a proper openingDynamic convergence 1.Adjust the convergence on the fringes of the2.Fix all the wedges on the CRT and apply glass3.Apply lacquer to the deflection yoke lock screw,
CONVERGENCE ADJUSTMENT (To be done after the purity adjustment.)
1
NO.Adjustment partAdjusting procedure and conditionsWaveform and others
9 |
ACEC
