Yamaha IM8-32, Service Manual

Page: 103 / 307

103
IM8-40/IM8-32/IM8-24
1. Measurement condition
1-1 Environment
Temperature (5 ˚ C – 40 ˚ C)
Humidity (30% – 90%)
2. Inspection
2-1 Preparation
Connect the instrument to the power supply (PW8) with the included cable. The power supply voltage deviation should be within
±10%. Load resistor of each output terminal is as follows:
PHONES (L, R) : 40 Ω Unbalanced
ST OUT : 600 Ω Balanced
MONO OUT : 600 Ω Balanced
AUX1–8 OUT : 600 Ω Balanced
GROUP1–8 OUT : 10k Ω Unbalanced
MATRIX (1–4) OUT : 10k Ω Unbalanced
Others : 10k Ω Unbalanced
Unless otherwise speci fi ed, the operation elements shall be set as follows,
• CH INPUT
+48V(PHANTOM) switch : OFF
φ (PHASE) switch : OFF (NORMAL)
GAIN control : Maximum (-60 dBu)
26 dB (PAD) switch : OFF (0 dB)
80
(HPF) switch : OFF
COMP control : Minimum (OFF)
EQ (HIGH, MID, LOW) control : CENTER
EQ HI-MID frequency control : Minimum
EQ LO-MID frequency control : Minimum
EQ ON switch : OFF
AUX 1–8 control : Maximum
AUX 1–2, 3–4, 5–6, 7–8 PRE switch : OFF (POST)
PAN control : L (Fully turned counterclockwise)
ON switch : ON when taking measurement only (LED lights up), OFF otherwise
1–2 switch : ON when taking measurement only, OFF otherwise
3–4 switch : ON when taking measurement only, OFF otherwise
5–6 switch : ON when taking measurement only, OFF otherwise
7–8 switch : ON when taking measurement only, OFF otherwise
ST switch : ON when taking measurement only, OFF otherwise
MONO switch : ON when taking measurement only, OFF otherwise
FADER : Maximum
PFL switch : ON when taking measurement only (LED lights up), OFF otherwise
INSPECTIONS