Tait T850 II Series User Manual

M850-00 T855 Fault Finding B5.19
Copyright TEL 31/09/98
5.7.7 Audio
Audio on
IC210 pin 1?
Check components
around IC210.
Apply on channel si
g
nal
@ -117dBm* to receiver.
Refer to
receiver fault
findin
g
chart.
Ensure RV230
(
g
atin
g
sensitivity)
fully clockwise.
"Gate" LED on?
Refer to mute
fault findin
g
charts.
Y
N
N
Y
N
Y
N
Y
Audio on
speaker?
Audio on
C238/C259?
Audio on
IC240 pin 2 &
IC260 pin 2?
Replace C249 &
check continuity.
Audio on line
monitor (pad 284)
& line output?
Refer to mute
fault findin
g
charts.
OK
Check/replace
output components.
N
Y
N
Y
N
Y
N
Y
Audio on
TP314?
Audio at
top of RV205
& RV210?
Check C233.
Check link PL240.
Replace
faulty IC.
*Modulated by 1kHz si
g
nal with
±3kHz (±2.4kHz) [±1.5kHz] deviation.

Tait T850 II Series Specifications

General

Brand	Tait
Model	T850 II Series
Category	Accessories
Language	English