Panasonic SB-HWA480EB, Руководство по обслуживанию

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7.3. Troubleshooting guide for HDMI Module
6 ) HDMI Connections Chec k in g
No m issin g a nd a ll pins f ully soldered. No S hort.
No m issin g a nd a ll pins f ully soldered. No S hort. vii) HDMI Input Co mm on-Mode Cho k e L1350, L1351
No m issin g a nd a ll pins f ully soldered. No S hort.
No m issin g a nd a ll pins f ully soldered. No S hort.
ii) HDMI Input TMD S a nd DDC si g n a l lines P a ttern bet w een IC1000 a nd TU1350 There is connection f ro m IC1000 pin to TU1350 pin
A ll pins f ully soldered. No S hort.
TU1 2 00 A ll pins f ully soldered. No S hort.
iv) HDMI Output Co mm on-Mode Cho k e L1 2 00, L1 2 01
No m issin g a nd a ll pins f ully soldered. No S hort.
There is connections bet w een IC1000 a nd TU1 2 00
iii) HDMI Output Connector
i) HDMI Tx/Rx L S I IC1000
v) HDMI 5 V Re g ul a tor IC1 2 00
ii) TMD S output s w in g am plitude control resistor
vi) HDMI Input Connector TU1350
i) HDMI Output TMD S a nd DDC si g n a l lines
Proble m s Chec k in g Points Chec k in g co m ponents
1) No video a nd a udio
(Po w er ON / S t a ndby P a ss
Throu g h)
1) Extern a l Connection chec k in g
i) Chec k w hether HDMI Input a nd Output is reversed.
viii) HDMI Input +5 V detect
P a ttern bet w een IC1000 a nd TU1 2 00
D110 6
ii) Chec k w hether HDMI c a ble properly inserted.
Expected Results
C a ble not reverse
C a ble inserted properly
i) HDMI I 2 C control line f ro m M a in Micon CN1000 (Pin 22 & 2 3), IC1000 (Pin 7 8 & 7 9) There is si g n a l present
No m issin g a nd a ll pins f ully soldered. No S hort.
There is connection f ro m IC1000 pin to TU1 2 00 pin
R1001
7 ) HDMI Co mm unic a tion line chec k in g
2 ) HDMI S upply V olt ag e chec k in g
i) Chec k w 3.3 V is present IC1100 (Pin 1) , IC1000 (Pins re f er to S che ma tic) +3.3 V supply is present
5) P a rts a v a il a bility a nd solderbility condition
3) HDMI Output V olt ag e Chec k in g
ii) Chec k w 1.8 V is present IC1101 (Pin 1) , IC1000 (Pins re f er to S che ma tic) +1.8 V supply is present
i) +5 V supply to T V : HD5 V TU1 2 00 (Pin 18) , LB1 2 03, IC1 2 00 (Pin4) +5 V supply is present
4) Hot Plu g V olt ag e chec k in g
i) Hot Plu g volt ag e f ro m T V TU1 2 00 (Pin 19) , IC1000 (Pin 41) +5 V supply is present