Sharp LC-32WD1E/S/RU - Page 65

The unit does not enter the DTV mode or the DVT menu
does not appear
Does LED H1101 flash on-off?

y
es
SW is running, check "No video output on DTV"
v no
Is 12V_DVB supplied to D1006-8

no
check if 12V is on R0978 and R08979. If not, PSU
problem
v yes
Check voltages:
+5VD on D1006-1
+3V3D on D1005-5
+2V5D on D1002-5
+1V2D on D1003-5
+1VD on D004-5

no
check circuit of corresponding DC/DC of LDO
v yes
Do G1101 and G1001 oscillate?

no
Check periferal circuits of G1101and G1001
v yes
Check +5V_tuner on U011-7

no
Check periferal circuits of D0911
v yes
Is pin D016-13 high level? (I2C select)

no
Check circuit of D018 (inverter) and D1410 (Atmel)
v yes
Check I2C data/clk on tuner pins U011-4 and U011-5

no
Check D1001 (demod) and D1101-4 and D1101-5
v yes
Check D1001 (demod) and D1101 periferal circuits
LC-32WD1E/S/RU, LC-37WD1E/S/RU, LC-42WD1E/S/RU, and LC-32/37/42WT1E
6-34