Sharp CX51N3 - User Manual

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Service Manual33 pages

Questions and Answers

A
adam89Aug 10, 2025
What to do if my Sharp CX51N3 TV has no picture and no sound?
- S
  scott20Aug 10, 2025
  If your Sharp TV has no picture and no sound, begin by checking the tuner supply voltage. LB should be approximately 5V, BT should be approximately 32V. Also, verify the CH preset data. You may also want to check pin(38) of IC801; pin (27) of IC801, Tuner and related circuit; pin (1) of SF201, Tuner and related circuit; pin (37) of IC801 and related circuit; and Q253, Q254 and related circuit.
L
Lindsey JohnsonAug 15, 2025
Why is there no sound on my Sharp CX51N3 TV?
- L
  Linda GeorgeAug 15, 2025
  If there is no sound on your Sharp TV, check if a noise signal appears at pin (44) of IC801. Also, verify if a signal appears at pins (2) and (4) of IC302. Inspect P301, P302, IC301, and their peripheral circuits. Check Q253, Q254, and the related circuit. Examine C356 and its peripheral circuit. Also, check IC801 and Q321, pins (4) and (6) of IC801, and their peripheral circuits.
B
bradshawemmaAug 20, 2025
What to do if my Sharp CX51N3 TV has no color synchronization?
- M
  Michael BarrettAug 20, 2025
  If your Sharp TV lacks color synchronization, check C505 and C509, and inspect IC501. Also, check X1001(12MHz).
T
Teresa ThomasAug 25, 2025
How to fix abnormal vertical linearity and size on Sharp CX51N3?
- M
  Mark CardenasAug 26, 2025
  To correct abnormal vertical linearity and size on your Sharp TV, readjust the vertical size using Bus Data.
C
Cynthia FernandezAug 30, 2025
What to do if my Sharp CX51N3 TV has no raster?
- R
  Richard VargasAug 30, 2025
  If your Sharp TV shows no raster, start by checking F701 and replace the fuse if it's blown. Also, check the voltage at T701 pin (11), which should be approximately 310V at 220V AC. Inspect R701 and R707. Furthermore, examine IC701, D701, and C705. Check the Secondary Main+B, which should be approximately 130V. Finally, check IC702, IC1080 and D751. If the Power LED is Red brightly check CRT connector D1001. If the Power LED is Red dimly check D1001. Also check R619 and R618, C878, IC801 and the protector circuit. Also, ensure that the horizontal circuit oscillates, and check Q752 and IC801.
D
Derek OrtizSep 4, 2025
What causes defective vertical amplification and linearity in Sharp TVs?
- S
  Selena JonesSep 4, 2025
  If your Sharp TV has defective vertical amplification and linearity, check R501, R521, R503, R512, R533 and C533. Also, inspect IC801 and the bias control circuit. Verify IC501 bias as well.

Sharp CX51N3 Specifications

General

Brand	Sharp
Model	CX51N3
Category	TV
Language	English

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