Read Sharp BD-HP22H (serv.man4) Service Manual online
BD-HP22H/S
4 – 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
Defective TV set or cable. Or, check the contact of soldered
connector of SC4201.
connector of SC4201.
NO
Are output voltages of IC4204 as 5V, IC4202 as 3.3V OK?
Check the IC4204 and IC4202 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 R2201?
YES
NO
Check the IC7201 and their peripheral circuits.
Check the CN2401 and the peripheral circuits.
FLOW CHART No.6
The software cannot be updated by using the USB memory terminal. Or any BD-LIVE-enabled titles cannot be enjoyed.
Replace the USB memory with new one, and check again.
Does the USB function properly?
Does the USB function properly?
YES
USB memory defective.
NO
NO
Is 5V supplied to pin (1) of CN4802?
Are output voltages pin (1) of
IC4804 as 5V?
IC4804 as 5V?
Is pin (4) of IC4804 at "Low" level?
NO
Check the Power PWB.
YES
Is 5V supplied to pin (5) of IC4804?
Replace IC4804.
Check or replace the peripheral
circuits of IC4802.
circuits of IC4802.
Check the contact of soldered
connectors.
connectors.
NO
Check the contact of soldered
connector of CN4802.
connector of CN4802.
YES
YES
YES
NO
YES
Is signal input into pins (2)/(3) of CN4802?
Check or replace L4803.
Check the pin (101)/(102) of CN4802 and
thier peripheral circuits.
thier peripheral circuits.
NO
FLOW CHART No.7
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