Wharfedale Pro Titan 12D User Manual download pdf (Page 21)

MAINTENANCE ALIGNMENT PROCEDURE

Titan 12D

Cut Boot Cut Boot

-12dB +12dB -12dB +12dB

Input Sin Wave, EQ: Mid, Level:Max,High:12KHz Load=8Ω, Low:60Hz Load=4Ω.

Tone Control

High

When the output is 1W and 10W, THD should below 0.1%.

4. Channel Equalization TEST

Input 200Hz 775mV Sine Wave Volume Max Output between 25 and 28V.

2. SINGNAL/NOISE RATIO TEST

No single input, EQ Mid, Volume Max, Output single of HP&LP should below 1mV.

3. T.H.D TEST

1. INPUT SENSITIVE TEST

A ：High Section

Input 12K Hz 775mV Sine Wave Volume Max Output between 15 and 18V.

Ｂ：Low Section

Input Sin Wave, EQ: Mid, Level: Max, when input≧775mV,red light is on.

Test Condition

Input Sin Wave, EQ: Mid, Level: Max.

High:12KHz, Low:60Hz, Main Ouptu”-10dBu”.

5. High& Low Limiter Test

LOW

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Wharfedale Pro Titan 12D User Manual Page 21