Read Sharp LC-32LE600E (serv.man7) Service Manual online
LC-32/40/46LE600E/RU/S
5 – 28
<When an external monitor is connected> No picture on the external monitor (6)-3
No picture appears on external monitor during the EXT5/6/7
inputs (HDMI). (EXT5 HDMI input, EXT2 output)
Checklist:
1) Are input terminal on back of TV and “INPUT SOURCE” button
on the remote control set up correctly?
••• See the operation manual and
set “INPUT SOURCE” appropriately. set to EXT***.
2) Is SCART-CABLE disconnected or connected improperly?
••• Connect it correctly as per the operation manual.
Is the video signal outputted to pin (19) of SCART2 (SC502)?
YES
Check SCART2, external connection or input setting.
NO
Is the video signal (SC2-VOUT) outputted from pin (4) of IC508
(75
(75
Ω_driver)?
YES
Check IC508 and peripheral circuits.
NO
Is the Composite Video signal (CVBS_MON_OUT) outputted
from the pin (B13) of IC3303 (VCT)?
from the pin (B13) of IC3303 (VCT)?
YES
Check between IC508 and IC3303 and the peripheral circuitry.
NO
Is the HDMI output signal (HDMI_SW_D [0:2] P/N) input to the
pin [AF16-AE18] of IC3303 (VCT) normally?
pin [AF16-AE18] of IC3303 (VCT) normally?
YES
Check a short circuit, HDMI_H/V signal, HDMI_PLG signal, and
other abnormality, etc. with IC3303.
other abnormality, etc. with IC3303.
NO
Is the HDMI input signal (HDMI0/1/2_D [0:2] P/N) input to IC1508
(HDMI-receiver) normally?
(HDMI-receiver) normally?
YES
Check a short circuit, HDMI_I2C signal, and other abnormality,
etc. with IC1508.
etc. with IC1508.
NO
Are the pin (43) (44)/(39) (40)/(33) (34) of I2C signal (HDMI [0:2]
_SDA/SCL) accessed normally?
_SDA/SCL) accessed normally?
NO
Exchange HDMI-Receiver (IC1508) Or check short circuit.
YES
Is the TMDS signal (1-12) pin inputted to HDMI1/2/3 (EXT5/6/7)
terminal normally?
terminal normally?
YES
Check a short circuit etc. between HDMI1/2/3 and IC1508
(HDMI-receiver).
(HDMI-receiver).
NO
Check whether the terminal of HDMI1/2/3 (EXT5/6/7) is faulty, or
there is not any error in external connection.
there is not any error in external connection.
Click on the first or last page to see other LC-32LE600E (serv.man7) service manuals if exist.