58
4.4 No Picture - Tuner
Notes: TS line
-TS line parts for US ATSC3.0/Philippines
R3114/R3116/R3117/R3120/R3121/R3122/R3123/RB301
- TS line parts for JP :
R3113/R3114/R3116/R3117/R3120/R3121/R3122/R3123/
R3027/RB3001
Notes: I2C
- Parts for I2C SDA line: R3036, R3040,
C3005
- Parts for I2C SCL line : R3035, R3039,
C3006
Waveform confirmation point
•
I2C_TU_SDA line: JL3013
•
I2C_TU_SCL line : JL3012
Can it preset Digital
broadcast?
NG
No sound
Check part mounting condition for
digital data line“TU1_TS_DATA0, TU1_TS_CLK,
TU1_TS_VALID, TU1_TS_SYNC”
(Refer Notes: TS line)
Digital Tuning 2
Confirm ANT or Satellite
connection
For JP
For US ATSC3.0
and Philippines
OK
Change NG parts
NG
Sound is normal?
OK
Check IC1000
(SoC)
Check IC1000
(SoC)
OK
A
NG
NG
: Insert correct signal in correct ANT
terminal.
A
Check part mounting
Condition for I2C SDA & SCL line.
(Refer Note I2C)
OK
Check the status of IC3101
peripheral components
Can it preset Analog
broadcast?
NG
Change Tuner module
OK
Check part mounting
Condition for X_DEMOD_RST_STBY line.
(Refer Note RST)
Change NG parts
Change NG parts
OK
OK
NG
Notes: RST
- Parts for X_DEMOD_RST line:
R3109, C3117
Voltage confirmation point
C3117 = 3.3V
FOR DIGITAL TUNING 2: @ JP, US ATSC3.0 and Philippines
T R O U B L E S H O O T I N G
SAFETY NOTES
SELF DIAGNOSTIC FUNCTION
TROUBLESHOOTING
SERVICE ADJUSTMENT
DIAGRAM
HANDLING GUIDE
58
SYS SET
2021/02/04 23:38:48 (GMT+09:00)