Samsung
Electronics
4-19
Troubleshooting
4-1-8 NO LOGO HDMI
Check the Video select, cable
connection, TV mode
No
No
Check U1 Power Input,
Y1 Oscillation, Memory interface
No
Check IC18 connector and HDMI
cable connection
Yes
Yes
Yes
Clock, Data and Sync from
Pin 56~94 from IC18.
Video selection
accords with cable connection and
TV mode?
Pin 51 of IC18 is High?
(2V ~ 5V)
No Logo HDMI
HDMI Cable Error
No
Check IC18 power input and
peripheral devices
Data output from IC18?
(Pin 30, 31, 33, 34, 36, 37,
39, 40)
Yes
Refer to wave pattern
image of Fig. 4-7.
Refer to wave pattern
image of Fig. 4-8.
Refer to wave pattern
image of Fig. 4-9.
Summary of Contents for HT-BD1255
Page 31: ...Samsung Electronics 4 5 Troubleshooting AMP page 7 5 C O N 1 AMP PCB Top page 6 9 Fig 4 1 1 1...
Page 32: ...4 6 Samsung Electronics Troubleshooting AMP page 7 5 Fig 4 2 1 2 2 2 2 2 2...
Page 36: ...4 10 Samsung Electronics Troubleshooting AMP page 7 5 UPIC1 AMP PCB Top page 6 9 Fig 4 3 1 1 1...
Page 37: ...Samsung Electronics 4 11 Troubleshooting AMP page 7 5 Fig 4 4 1 2 2 2...
Page 39: ...Samsung Electronics 4 13 Troubleshooting AMP page 7 5 Fig 4 5 1 3 3 3 3 3 3...
Page 62: ...4 36 Samsung Electronics Troubleshooting F W Update via Network...
Page 96: ...6 6 Samsung Electronics PCB Diagram 6 4 KEY PCB Top 1 2 TIC1 PCON2 VCON2 TCON...
Page 98: ...6 8 Samsung Electronics PCB Diagram 6 5 KEY PCB Bottom...
Page 101: ...Samsung Electronics 6 11 PCB Diagram 6 7 AMP PCB Bottom TP2 CON1 J3 AIC7 AIC8 AIC9...
Page 102: ...6 12 Samsung Electronics PCB Diagram 6 7 1 Test Point Wave Form TP2...
Page 105: ...Samsung Electronics 6 15 PCB Diagram 6 8 2 Test Point Wave Form TP6 TP5 TP7 TP8 TP9 TP10...
Page 107: ...Samsung Electronics 6 17 PCB Diagram 6 9 1 Test Point Wave Form TP7 TP8 TP9 TP10...
Page 108: ...6 18 Samsung Electronics PCB Diagram 6 10 SMPS PCB Top CN3 CN2...
Page 109: ...Samsung Electronics 6 19 PCB Diagram 6 11 SMPS PCB Bottom CN3 CN2...
Page 110: ...6 20 Samsung Electronics MEMO...