SHARP 29R600P Repair Manual

29R600P
Figure 2-1Figure 2-2Figure 2-3
WAVEFORM OR OTHERSRank A (On the right of CRT)Rank A (On the left of CRT)Text Key "R.G.Cy" Key can be directly use to change to other colours screen.
A.
m
20N
?A.
m
2Kgf)
?
after warming up the unit for 30 minutes or longer with a beam current over 1000switch ( S 1006) then press factory process R/C RGB key to change to green only.
Adjust the beam current to ~800degausing coil.magnetic field and keep the static convergence roughly adjusted.Fig.2-1 through the microscope. Adjust the landings to A rank requirement.Tightening torque : 108N (11Kgf meet the A rank requirements. If not, stick the magnet sheet to correct it.Note:This adjustment must be doneNote:Set the service mode by service
to change.
ADJUSTMENT CONDITION/PROCEDURE 1.Receive the GREEN -ONLY signal. 2.Orient the raster rotation to 0 eastward. 3.Degauss the CRT enough with the 4.Maintain the purity magnet at the zero 5.Observe the points a, b, as shown in 6.Tighten up the deflection coil screws. 7.Make sure the CRT corners landing * For the following colour press colour key
ADJUSTMENT POINT
PURITY ADJUSTMENT
1PURITY ADJ.
NO
ohm/8 ohm (or 5.3 ohm) to get 8.94V +/- 0.1(L channel)
WAVEFORM OR OTHERS*Note: Terminated 16
0.10 Vp-p.
?
Audio signal: 400 Hz, 100% modulated (50kHz dev.)Out (L or R) terminal. (Terminate with 10k ohm impendence).mode.using Volume UP/DOWN key, so that the 400Hz sine wave be 1.76Vp-p. Tolerence: 1.76 Vp-p Audio signal: 400Hz, 100%modulation. (50kHz dev.)(1 R, 2 GND, 3 GND, 4 L, 5 NIL, 6 NIL 7 NIL 8 NIL)mode.using Volume UP/DOWN key, so that the VTVM should read the value*.and make sure the sound is heard from the speakers. Then put the unit in the no-signal state.minimum.
ADJUSTMENT CONDITION/PROCEDURE 1.Receive "PAL COLOUR BAR" signal. 2.Connect the Oscilloscope to the Audio 3.Call the "RF SUB VOL" in SERVICE 4.Increase or decrease "RF SUB VOL" by 5.Receive "COLOUR BAR" signal. 6.Connect Dummy load* to P3304. 7.Connect VTVMOs probe to the P3304. 8.Call the "SP SUB VOL" in the SERVICE 9.Increase or decrease "SP SUB VOL" by10.Receive the 400Hz modulated signal. 11.Turn up the volume control to Maximum12.Be sure that the sound mute is effective. 13.Finally turn down the volume control to
2C BUS CONTROL)2C BUS CONTROL)
(I(ICHECKINGADJUSTMENT POINT
SOUND ADJUSTMENT
1RF SUB VOLUME2SP SUB VOLUME3NOISE MUTE
NO
8