Sony HT-RT40 Service Manual

HT-RT4/RT40
16
1. “PRTCT” is displayed on OLED display after turning the power on
Note: Please remove USB (removable device) before troubleshooting.
SECTION 4
TROUBLESHOOTING
2. The video of HDMI is not displayed during USB mode
Check MAIN board (RT4) /
EG4 MAIN board (RT40)
IC3200 pin 4 is 5V.
Yes
Check MAIN board (RT4) /
EG4 MAIN board (RT40)
IC3200 pin 1 is 3.3V.
Yes
Replace IC3200 on MAIN
board (RT4) / EG4 MAIN
board (RT40).
Yes
Replace MAIN board (RT4) /
EG4 MAIN board (RT40)
diode (D3200).
Check MAIN board (RT4) /
EG4 MAIN board (RT40)
IC3200 pin 5 is 7.4V ~ 8V.
No
Refer to "Power is not turned
on" on page 18.
NoNo
Replace complete MAIN
board (RT4) / EG4 MAIN
board (RT40).
“PRTCT” is displayed on the
OLED display after turning the
power ON.
Yes
“PRTCT” is displayed after
removing Bar speaker (FRONT L,
FRONT R, CENTER speakers)
and Surround speaker (SUR L,
SUR R speakers) and turning the
power ON.
Yes
Remove CN1001 from
MAIN board (RT4) / EG4
MAIN board (RT40) and
check “PRTCT” is
displayed.
Yes
Replace MAIN board
(RT4) / EG4 MAIN board
(RT40) IC1000 and
IC1002 and check
“PRTCT” is displayed.
Replace complete
MAIN board
(RT4) / EG4 MAIN
board (RT40).
Yes
Check and replace the
loudspeaker in subwoofer.
“PRTCT” is displayed after
plugging Bar speaker (FRONT L,
FRONT R, CENTER speakers)
and turning the power ON.
“PRTCT” is displayed after
plugging Surround speaker
(SUR L, SUR R speakers) and
turning the power ON.
Check and replace the
loudspeaker in Bar
speaker.
Check and replace the
Surround speaker.
No
No
Yes
Yes
No

Sony HT-RT40 Specifications

General

Total Power Output	600W
Speaker Configuration	5.1 channel
HDMI Output	1 (ARC)
Sound Modes	Music, Cinema, Standard
Connectivity	Bluetooth, USB
Subwoofer	Wired
Surround Sound	Dolby Digital
Input and Output Terminals	Optical Input, Analog Input, USB