Yamaha TF5, Service Manual

Page: 159 / 372

TF5/TF3/TF1
159
A. INPUT-OMNI OUT Gain max.
No. Item Condition Input Output Criteria Remarks
1 Gain
Test Command :
HAAD12_MAX
INPUT 1-16
1kHz -62dBu
OMNI OUT 1-16
+4.0 ± 2.0 dBu
T h e d i ff e r e n c e i n t h e l e v e l
between channels shall be 2dB or
less.
Test Command :
HAAD34_MAX
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
1kHz -62dBu
2 Frequency Response
Test Command :
HAAD12_MAX
INPUT 1-16
-62dBu
OMNI OUT 1-16
1kHz : 0dB (reference)
20Hz : -0.5 ± 1.0 dB
20kHz : -0.5 ± 1.0 dB
Test Command :
HAAD34_MAX
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
-62dBu
3 THD + N
Test Command :
HAAD12_MAX
INPUT 1-16
1kHz -48dBu
OMNI OUT 1-16
≦
0.05 % 80kHz LPF
Test Command :
HAAD34_MAX
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
1kHz -48dBu
4 Noise Level
Test Command :
HAAD12_MAX
Short input with 150 Ω
INPUT 1-16
OMNI OUT 1-16
≦
-58 dBu
or
EIN
≦
-124 dB
22kHz LPF
Test Command :
HAAD34_MAX
Short input with 150 Ω
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
B. INPUT-OMNI OUT Gain min.
No. Item Condition Input Output Criteria Remarks
1 Gain
Test Command :
HAAD12_MIN
INPUT 1-16
1kHz +10dBu
OMNI OUT 1-16
+4.0 ± 2.0 dBu
T h e d i ff e r e n c e i n t h e l e v e l
between channels shall be 1dB or
less.
Test Command :
HAAD34_MIN
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
1kHz +10dBu
2
Frequency Response
Test Command :
HAAD12_MIN
INPUT 1-16
+10dBu
OMNI OUT 1-16
1kHz : 0dB (reference)
20Hz : -0.5 ± 1.0 dB
20kHz : -0.5 ± 1.0 dB
Test Command :
HAAD34_MIN
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
+10dBu
3 THD + N
Test Command :
HAAD12_MIN
INPUT 1-16
1kHz +26dBu
OMNI OUT 1-16
≦
0.01 % 80kHz LPF
Test Command :
HAAD34_MIN
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
1kHz +26dBu
4 Noise Level
Test Command :
HAAD12_MIN
Short input with 150 Ω
INPUT 1-16
OMNI OUT 1-16
≦
-79 dBu 22kHz LPF
Test Command :
HAAD34_MIN
Short input with 150 Ω
INPUT 17-32 (TF5)
INPUT 17-24 (TF3)
●
TEST SPEC
The load resistance for each output terminals are as follows.
PHONES (L/ R) : 40 Ω (
≧
3W / 3W or more)
OMNI OUT : 600 Ω
0dBu is referenced to 0.775Vrms.
0dBV is referenced to 1.0Vrms.
Unless otherwise speci fi ed, measurement conditions shall be
set as follows.
Signal Source Output Impedance : 100 – 150 Ω (Balance)
PHONES LEVEL : Max. (Only while measurement
）
Measure following items with the condition described in the
Tables.
No need to operate Fader during measurement.