Luxman M-03 - Adjustment Procedures; Setup and Connections for Adjustment; Idling Adjustment Procedure; Power Level Indicator Adjustment

Adjustment Procedures
1. Connections
T.P.1 (T.P.3) ©
T.P.2 (T.P.4)
SIGNAL
GENERATOR
2. Control Settings
Attenuator (Left) crrrrrrrssr reer reece Minimum
(fully counter clockwise turned)
Attenuator (Right) crrrrrrrsr rte er ere ees Minimum
(fully counter clockwise turned)
Speaker Selector Switch -«rrrrrrttseee Speaker A
Speaker Impedance Selector Switch ------ 8 ohm
Peak Hold Time Selector Switch «+rrrrrrseseeee 3
Power Switch wie Bi bAe cele Cae. oboe auaibce verre a sieve venerated ON
3. Adjustment Procedures
(1) Idling Adjustment (Fig. 5)
Adjust VR101 (VR201) to obtain 3.5+0.5mV
between T.P.1 (T.P.3) and T.P.2 (7.P.4).
(2) Power Level Indicators Adjustment (Fig. 6)
Note: Apply signal to the set one channel at a
time for adjustment.
Attenuator Setting
For Left channel Adjustment
(Left Attenuator) -rrrrererereee Maximum
(fully clockwise turned)
For Right channel Adjustment
(Right Attenuator) -rrrrerreeeee Maximum
(fully clockwise turned)
Figure 5
AC VTVM Figure 6
@ Set the osillator output to obtain 2.82V at Left
(Right) channel Speaker output. Adjust VR701
(VR702) to obtain 140.1 at Left (Right) Power
Level Indicator.
Set the oscillator output to obtain 40V at Left
(Right) channel Speaker output. Adjust VR703
(VR704) to obtain 200+0.2 at Left (Right)
Power Level Indicator.
M-03