
Slide 68
12 Blinks Error Code
1.
Speaker
2.
A board (mainly sound processor)
3
.
Wrong diagnostic by the A board
These conditions can cause the TV to shutdown and the power LED to blink 12 times
SOS Detect Circuit Explanation (14)
A12
IC4900
(YDA174)
Audio DSP Amp
1
2
3
4
5
6
Speaker L
Speaker R
WOOFER
A
IC8000
PARAGON
AF22
IC4901
(YDA176)
Audio Amp
21
18
PROT_N
PROTN
I2C
I2S
Woofer audio data
Audio
Data
AH10
AH11
The IC4900 and IC4901 detect over current of amplifier output and high temperature of chip.
If these chips detect abnormal error, these output the error signal (PROT_N / PROTN) which is open
drain type. When the IC8000 detects low level in AF22, it occurs to shutdown TV and to blink 12 times
for power LED.
Summary of Contents for Viera TC-P50S60
Page 5: ...Slide 5 Model Line Up and New Features...
Page 10: ...Slide 10 Board Layout and connectors Location...
Page 12: ...Slide 12 Board Layout Slide 12 TC P50ST60...
Page 15: ...Slide 15 Bluetooth WiFi Modules Location Slide 15 TC P50ST60 Bluetooth Module WiFi Module...
Page 16: ...Slide 16 Board Layout Board Layout TC P42S60 P PSS SS A A SN SN C1 C1 C2 C2 Slide 16...
Page 19: ...Slide 19 Standby Operation...
Page 27: ...Slide 27 Power On Operation...
Page 36: ...Slide 36 Voltage Distribution...
Page 40: ...Slide 40 Voltage Distribution TC P55 60 65S60 TC P50 55 60 65ST60...
Page 52: ...Slide 52 Voltage Distribution Panel Drive Voltages P15 P5V Analysis of a shorted P15 condition...
Page 56: ...Slide 56 SOS Detect Circuit Explanation Shutdown...
Page 69: ...Slide 69 TV Data Copy to USB Drive...
Page 75: ...Slide 75 Troubleshooting Flowchart...
Page 100: ...Slide 100 Video Lines Troubleshooting Slide 100...
Page 104: ...Slide 104 Test Patterns Slide 104...
Page 105: ...Slide 105 Defective Panel Drive IC Slide 105...