Akai VS-2EGN

4, AUDIO/PRE P.C BOARD ADJUSTMENT
P2038
T[R.cuRRT] 202
2] Pe swe TT GND,
3 | R.CURRE 2 | sw.P
(4 [eno 3 env
=]
VR4(BIAS)
Z (Hn Fo
VRE
(CH-1)Q
VR2
(PB LEVEL)
=
VRL
{eo} (EE LEVEL)
ve3
(cH-2)0
VR3 (cH-2)Fo
(REC LEVEL) VRE
Fig. 11-4 Audio/pre P.C Board V1009A5180
TUNER/EXT AUDIO
SELECT SWITCH
REMOTE VIDEO VIDEO
PAUSE. OUT IN
Fig. 11-5 Audio Jack
ADJUSTMENT] ADJUSTMENT)
‘STEP| ITEM INPUT MODE |TEST POINT PARTS RESULT & REMARKS
1| EELever | Avdiolnput | ee | audioout | vei 6 dBm £0.5 dB
evel 1 kHz, —20dB “I udio Ou =I im he. im
Test Tape
2 PB Level AT-750800 PB Audio Out VR2 —6 dBm + 0.5 dBm
(1,000 Hz)
Audio Input :
3 Rec Level 1 kHz,—204B REC/PB | Audio Out VR3 —6 dBm + 0.5 dBm
Audio Input .
Frequency
|100Hz,-204B
F
100
Hai
6
dens
1deay
4 REC/PB | Audio Out VR4 1 kHz : —6 dBm +0.5 dBm
Response
|
1
kHz,—20dB
7kHz
:
—6
dBm‘?
dB
7
kHz,—20dB
ES
hae
ee
Distortion
|
Audio
Input
;
+
5 Factor 1kHz,-20dB REC/PB | Audio Out Confirm Less than 3%
6 Adjust by repeating steps 3, 4 and 5.
‘Service Manual VS-2EGN:
18