59
1. DC offset adjustment
Master Volume : Minimum, Speaker out : non Load
Step
Power
Channel
Adjustment
Point
Test Point
Adjustment Vaule
Front L
R715
Center
RT15
Front R
RP16
Surr. L
RP15
1
on
Surr. R
R716
Speaker Output
Terminal
20mV
±
Note : If the measured value is not exceed ±20mV, no need to adjust the DC offset.
2. Iding current adjustment
Master Volume : Minimum, Speaker out : non Load
Step
Power
Channel
Adjustment
Point
Test Point
Adjustment
Vaule
Front L
R743
J713 or R773
Center
RT43
JT13 or RT73
Front R
RP44
JP04 or RP74
1
Power on
Surr. L
RP43
JP03 or RP73
within 1 minute
0.4mV
Surr. R
R744
J714 or R774
2
after
4 minutes
J***:4P Connecter
[between 1p-4p]
R***:Emitter Resister
see table
for adjustment
vaule
Time since power on
Idling current adjust.
Time since power on
Idling current adjust.
4–4 minutes 30 seconds
11.8mV
11-12 minutes
16.6mV
4m30s–5 minutes
13.1mV
12-14 minutes
15.9mV
5–5 minutes 30 seconds
14.1mV
14-16 minutes
15.4mV
5m30s–6 minutes
14.9mV
16-18 minutes
14.8mV
6–7 minutes
15.5mV
18-22 minutes
13.5mV
7-8 minutes
16.2mV
22-26 minutes
12.2mV
8-9 minutes
16.5mV
26-30 minutes
11.0mV
9-10 minutes
17.0mV
more than 30 minutes
10.0mV
10-11 minutes
16.8mV
The taget is 7.2mV
3. Thermostat circuit confirmation
1) When the product is POWER ON, remove the wire W701 from the connector J715 (P704).
2) FLD shows "ERROR PWR1".
3) Confirm the product is POWER OFF after 3 seconds.
4) Connect the wire W701 to the connector J715 (on P704).
5) Confirm the product is standby status.
9. ELECTRICAL ADJUSTMENTS