STR-DH540
5
Flow of Repair (when sound is not outputted) (4/5)
NG
OK
OK
OK
OK
OK
NG
OK
NG
NG
NG
NG
– Continued on page 6 –
Check that voltages of the connector pins on the Digital board are the following value. DIGITAL board: CN1500 pin 3, 4: +3.3 V CN1500 pin 5, 6: +6 V CN1500 pin 7, 8: +3.6 V CN1500 pin 9, 10: +2 V
Check that voltage of the following pin is 3.3 V, 1.3 V DIGITAL board: IC3506 pin 112, 173: 3.3 V pin 18, 111, 116: 1.3 V
Check that voltage of the following pin is 3.3 V. DIGITAL board: IC3000 pin 38: 3.3 V (INITX)
Check that the X3000 on the DIGITAL board is oscillated normally.
Check the following parts and the surrounding circuit, and exchange the defective parts. DIGITAL board: IC3000
Check the following parts and the surrounding circuit, and exchange the defective parts. DCDC board: IC1902, IC1903, IC1904, F940, F941
Check the following parts and the surrounding circuit, and exchange the defective parts. DIGITAL board: IC3506
Check the following parts and the surrounding circuit, and exchange the defective parts. DIGITAL board: IC3001, IC2100
Check the following parts and the surrounding circuit, and exchange the defective parts. DIGITAL board: X3000
Perform the “SOFTWARE VERSION DISPLAY MODE” (refer to page 10 on the original service manual), and check that the video micro-processor version is not “0.00”.
Check that the sound from the HDMI input is outputted.
Summary of Contents for STR-DH540
Page 82: ...MEMO STR DH540 82 ...
