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Victoria FryeAug 14, 2025
Why is there no sound on my Sharp 21S-FX10U TV?
- AAndrea SimmonsAug 15, 2025
If there is no sound on your Sharp TV, check the speaker. Also, check IC301 and its surrounding circuits.
To Next PageTo Next PageWhy is there no sound on my Sharp 21S-FX10U TV?
If there is no sound on your Sharp TV, check the speaker. Also, check IC301 and its surrounding circuits.
What to do if Sharp 21S-FX10U TV fuse blown?
If the Sharp TV fuse is blown, replace it. If the fuse blows again, check the voltage at T701 pin (8), which should be approximately 310V at 220V AC. Also, check NR701, IC701, D701, C705, the CRT connector K-circuit, IC751 for the 3.3V regulator, Q601, Q602, Q803, and the signals at various pins of IC1001.
What to do if Sharp 21S-FX10U TV noise increases but no signal is received?
If the noise increases on your Sharp TV but no signal is received, check the tuner AGC at JA402, pins (45) and (46) of IC1001, and the tuner supply voltage LB and BT.
How to fix no vertical scan on Sharp TV?
If your Sharp TV has no vertical scan, check the IC501 bias, C511, C516, and IC501 itself.
What to do if Sharp 21S-FX10U has no color synchronization?
If your Sharp TV has no color synchronization, check IC1001 and its bias control circuit, and check X801 (24.576MHz).
How to fix abnormal vertical linearity and size on Sharp 21S-FX10U TV?
If the vertical linearity and size are abnormal on your Sharp TV, try re-adjusting the vertical size using Bus Data. Additionally, check R503, R506, and R521.
Why is the picture color cyan on my Sharp TV?
If the picture color on your Sharp TV is cyan, check IC1001 and its bias control circuit.
Why is the picture color magenta on my Sharp TV?
If the picture color on your Sharp TV is magenta, check IC1001 and its bias control circuit.
Why is the picture color yellow on my Sharp TV?
If the picture color on your Sharp TV is yellow, check IC1001 and its bias control circuit.
Detailed technical specifications for the TV model, including IF, power, speaker, and channels.
Outlines critical safety measures for servicing, including high voltage and X-ray precautions.
Details crucial safety measures and initial setup steps before performing adjustments.
Lists EEPROM addresses, default data, and ranges for system configuration and adjustments.
Explains procedures for PIF and Focus adjustments, including required signals and conditions.
Details adjustments for picture geometry like V-SLOPE, V-SHIFT50, and H-SHIFT-50.
Covers adjustments for screen, white balance, sub-brightness, and sub-contrast for optimal picture quality.
Details the procedure for adjusting PAL color signals, including sub-color settings.
Step-by-step guide to diagnose and resolve issues related to the absence of a TV raster.
Flowchart for troubleshooting issues where no sound is produced by the TV.
Troubleshooting steps for TVs that lack both vertical and horizontal picture synchronization.
Troubleshooting guide for situations where specific colors are missing or incorrect in the picture.
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