Electrical Adjustments - Sony TA-AX500 Service Manual

TA-AX500
SECTION 3
ADJUSTMENTS
3-1. ELECTRICAL ADJUSTMENTS
Note:
1, DC BIAS and DC BALANCE adjustments should
be made several minutes after the POWER switch
is turned on (POWER ON.).
2. Make DC BIAS adjustment first.
DC Bias Adjustment (with no signal input)
Procedure:
Adjust RT301 (L-CH) and RT351 (R-CH) for 5 mV
reading on the VOM.
Adjustment Location:
— L-CH —
VOM
(DC range)
RT301 (L-CH)
3. Repeat DC BIAS and DC BALANCE adjustments
two or three times.
4. After replacing the power transistor, DC BIAS
and DC BALANCE adjustment should be made.
VOM
(DC range)
RT351 (R-CH)