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SHARP 21HF2SS
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SHARP 21HF2SS Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 17 (click to view)
21HF2-SS
2. PURITY ADJUSTMENT
No. 1 Adjustment point PURITY ADJ. Adjustment condition/procedure 1. Receive the GREEN-ONLY signal. Adjust the beam current to ~700 μA. 2. Degauss the CRT enough with the degausing coil. NOTE: Follow the Job Instruction Sheet to adjust the magnetic field. (Reference: page 3-12) 3. Maintain the purity magnet at the zero magnetic field and keep the static convergence roughly adjusted.. 4. Observe the points a, b as shown in Fig. 1-1 through the micro scope. Adjust the landings to the A rank requirement. 5. Orient the raster rotation to 0 eastward.. 6. Tighten up the deflection coil screws . �Tightening torque: 108 20 N (11 ± 2 kgf) 7. Make sure the CRT corners landing meet the A rank require ments. If not, stick the magnet sheet to correct it. NOTE: Note: This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 700 μA. NOTE: Note: Set the service mode by JA304 & JA307 (short) then press factory process R/C RGB key to change to RGB mono colour mode. * For the following colours press R/C RGB(Hex 7E) key to change. Waveform or others

a

b

30mm

F ig. 1-1

30mm

A

B A=B
F ig. 1-2 R ank "A" (on the right of the C R T )

GR E E N ONLY

B LUE ONLY S ignal-colour s creen cleared

RED ONLY

A

B A=B

F ig. 1-3

R ank "A" (on the left of the C R T )
*Press R/C RGB key for 1 second in NORMAL MODE, the colour will change to RGB mono colour mode.

3 � 14

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