Zenith XBR411 - Optical; Digital Output; Tuner Audio Output; When Playing Disc, no Audio Output

3-65
Check AV_RST1,
power and other cir-
Check R154, R155,
R851, R852
IC802-14 : HIGH
DAC RESET status
IC802-11 I2C signal
normal
Check IC802 power
And Other circuits
NO
NO
YES
YES
Check VCR PART
PN303-1 signal
normal
Check FFC Cable
Signal flow
NO
YES
Audio output even
When playing DISC
PN304-19~22 Check
audio signals
NO
Check FFC Cable
and VCR part
NO
Check FFC Cable
and VCR part
Check IC801 power
and other circuits
NO
Check AV_RST1 and
power, other circuits
NO
YES
IC801 – 1, 7 Check
audio signals
YES
IC802-14 Check
High?
YES
Check IC802 power
And Other circuits
YES
NO
YES
5. When playing DISC, no audio output
6. No TUNER audio output
7. No OPTICAL / DIGITAL output