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Chassis
Part Symbol Defective Circuit Audio Audio
mmc102G C11807 MMC101 CC U11702
MM102
J11900
Audio Audio
mm101cc U11702
Symptom solution Cycles all error codes are 136, found C11807 shorted. Located at pin 2 of U11800 TVB IC. replace C11807 No audio. Found audio is getting to U11702 & not coming out. Jumped across ic and audio works. Checked the b+ & switching all are there. Replace U11702. Connect the Dead Set. The connector to the speakers are being plugged into J19104 Adapter Board Speakers to the on the right side of the chassis. (R,G,&B Drives) Wrong Location. The connector should correct location be plugged into the Rear Panel on the lower right into J11900. Right location. on the I/O panel No audio out of speakers, but had audio on fixed level. Audio going into u11702, but not Replace u11702 coming out.replaced open u11702 and q11701. and q11701 AUDIO BUZZ LEFT CHANNEL, FOUND C11912 SHORTED, IT IS BETWEEN PINS 4 & 6 OF THE OUTPUT,, PIN 6 HAD -9 VOLTS INSTEAD OF +10 VOLTS Replace C11612 No audio. U11901 & U11902 pin 10 low, this mutes the outputs. Found R11923 measuring infinity. Cycles three times. Error code 12. Found open R11904 to the AVR line ( pin 12 of U13101 ).
MM101
C11912
Audio
DTV307 DTV306
R11923 R14904
Audio Audio
Replace R11923 Replace R11904.