3g.1.2 Switch Unit Troubleshooting Flow - General Checking
3g.1.2 Switch Unit Troubleshooting Flow
Switch Unit NOT FUNCTIONING
Yes
Change Switch Unit
Yes
No
NG
No
Yes
Change Wire Harness
And connect properly
Yes
Change B-board
No
*VOLTAGE LEVEL FOR EACH PRESSED BUTTON (for KM and KL (all model ) switch unit )
KEY
Voltage
(average)
Voltage range
-
0.000
0.00 – 0.2
+
1.05
1.00 – 1.13
No Input
2.420
2.26 – 2.58
**see next page for probing point of Bboard
** Check 3.3V
in Pin3, CN1
(Switch Unit).
Is it 3.3V?
Check if Wire Harness
And Connector is
connected properly?
*Check Pin 2
Voltage Level in CN1 (switch
unit).Is voltage level
according to key pressed?
**Check 3.3V in (Pin 9,
CN9602 on
Bboard . Is it 3.3V?
FRONT VIEW
BACK VIEW
Pin 1
White wire(GND)
Pin 2
TACT KEY
Pin 3
POWER KEY
85
Summary of Contents for KDL-49W6 E Series
Page 2: ...LCD TV SERVICE MANUAL COMMON GN3UN CHASSIS Segment KM ...
Page 8: ...1 8 Handling the FLEXIBLE FLAT CABLE FFC continue 8 ...
Page 9: ...1 8 Handling the FLEXIBLE FLAT CABLE FFC continue 9 ...
Page 10: ...10 1 8 Handling the FLEXIBLE FLAT CABLE FFC continue ...
Page 12: ...12 1 9 Solder less tuner replacement procedure Cont ...
Page 13: ...13 1 9 Solder less tuner replacement procedure Cont ...
Page 29: ...29 BLM layout 12V_PANEL line PANEL_PWR Q6001 Only present in EU regions ...
Page 33: ...3e 1 6x Blinking Backlight Error LK1 LK2 Board Troubleshooting Guide 33 ...
Page 73: ...3f 8 WIFI Cannot search device Connection Failed Checking Point 3f 8 WIFI 73 ...
Page 74: ...3f 8 WIFI Cannot search device Connection Failed Checking Point 3f 8 WIFI 74 ...
Page 94: ...5V DDC STBY_5V C6041 19 5V_O F6001 EN R6040 IC6001 3g 3 2 IC6001 5V DDC Checking Procedure 94 ...
Page 141: ...141 12 Aging Mode 1 Press button to turn on Aging Mode 2 Press button to turn off Aging Mode ...
Page 163: ...9 888 723 02 Sony EMCS Malaysia Sdn Bhd RDCM English 2017 02 163 ...