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4.1
Test instruments required for adjustment
(1) Digital oscilloscope (100MHz)
(2) Digital tester
(3) Test Disc
(4) Extension cable : EXTXD001-50PF (CN403 - CN461)
EXTDV002-30P (CN351 - CN451)
EXTFP001-30P (CN302 - CN442)
EXTFP001-60PF (CN301 - CN421)
EXTFP001-42P (CN401 - CN681)
EXTNT001-30PF (CN921 - CN951)
(5) Extension stud : STDV001-3P
4.2
Standard measuring conditions
Power supply voltage DC14.4V(10.5 to 16V)
Load impedance 20K ohm (2 Speakers connection)
Output Level Line out 2.5V (Vol. MAX)
4.5
How to connect the extension cable for adjusting
Caution:
Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively,before supply the power.
If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.
CN681
Original wire
CN951
EXTNT001-30PF
CN921
EXTFP001-42P
to CN421
CN401
1-18 (No.MA453<Rev.003>)
SECTION 4
ADJUSTMENT
EXTFP001-60PF
to CN422
4.3
Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
4.4
Dummy load
Exclusive dummy load should be used for AM,and FM.
For FM dummy load, there is a loss of 6dB between SSG
outputand antenna input.
The loss of 6dB need not be considered sincedirect reading of
figures are applied in this working standard.
STDV001-3P
EXTXD001-50PF
EXTDV002-30P
CN351
CN301
CN302
EXTFP001-30P
CN403
STDV001-3P
CN461
CN451
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