Sony KDL-32W600D Service Manual page 74

2023/11/28 13:25:38 (GMT+09:00)
3-3-17 : CEC Not Function- Bravia Sync (CEC) not function- HDMI
Bravia Sync (CEC)
Not Function
Check CEC BRAVIA Sync
Device List "Enable"
[NG] No CEC device list
Source side Support CEC
[OK] Support CEC
Check Source and TV
CEC/BRAVIA Sync setting
[OK] Setting is "ON"
Change other HDMI
cable that proven OK
& Re- Verify
[NG] CEC not function
Physical appearance
check on HDMI connector
[OK] Connector no abnormality
Check voltage at CEC pin
[OK] Voltage ≈ 2.5~3.63V
Replace B-board &
Escalate this issue to
Authorized Service Centre (ASC)
[OK] Source device listed
[NG] CEC not function
[NG] Not Support CEC
[OK] Setting is "OFF"
[OK] CEC functioning
[NG] Connector abnormal
[NG] Voltage ≠ 2.5~3.63V
[OK] VD: Open circuit, R3613: ≈100Ω
re-verify
[OK] CEC functioning
Make Factory reset
To Source and TV "
Source side not
support CEC
Source and TV CEC
setting problem
Customer HDMI cable
problem
HDMI connector broken
Check impedance of
[NG] VD: Short circuit,
varistor &
resistor during AC OFF
VD3601, VD3600 & R3613
[NG] short Circuit /
Low impedance
Internal Main SoC
(IC5000) broken
END
Checking condition:
- TV ON & HDMI Source ON except if the flow mentioned is AC OFF.
- TV HDMI input connected to HDMI source output
- TV Input: HDMI
Turn to "ON" CEC
Setting & Re-verify
[NG] CEC not function
Replace HDMI
Connector & Re-verify
[NG] CEC not function
Replace varistor & resistor
R3613: ≠100Ω
& Re-verify
[NG] CEC not function
Check CEC GPIO
Line Short to Ground
During AC OFF
Pin 13 @ CN3600/CN3601
[OK] Open Circuit
[OK] CEC functioning
[OK] CEC functioning
[OK] CEC functioning
74
SYS SET