Read Sharp BD-HP21H (serv.man2) Service Manual online
BD-HP21U/S/H/A/X/RU/SB,BD-HP50U/X
2 – 3
No video and audio signal output from HDMI terminal.
Replace the TV set (cable) and reconfirm.
Still no video and audio output?
Still no video and audio output?
YES
NO
Is level of R4218 higher than 2V?
Is the level of pin (5) of IC4203 at least 5V?
Defective TV set or cable. Or, check the contact of soldered
connector of SC4201.
connector of SC4201.
NO
NO
Are output voltages of IC4201 as 1.0V, IC4203 as 5V,
IC4206 as 3.3V OK?
IC4206 as 3.3V OK?
Check the IC4201, IC4203 and IC4206 or peripheral circuits.
NO
YES
Is the data line functioning (Hi/Low)?
Check IC7802, IC7803, IC7804, IC7805, IC8502, IC8505 and
their peripheral circuits.
their peripheral circuits.
Replace IC7201.
Or rewrite the main software.
Or rewrite the main software.
NO
YES
FLOW CHART No.5
No audio signal output from the Optical and *Coaxial terminal.
Is there digital audio signal at R5669?
YES
NO
Check the IC7201 and their peripheral circuits.
Check the J5601 and CN5602 and the peripheral circuits.
FLOW CHART No.6
*Coaxial terminal is HP50 only.
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