Teac A-400 Service Manual page 22

5. LEVEL DIAGRAM
PL. 7
(2) ee
VRIO4 O
O
)
Reh
DOLBY NR
nec @) So @) (6)
ee bce () Jvraoe LINE OUT
FLAY,
DOLBY B TYPE 3
O
—
vRi02 IC 7 oa? "<a
AY
VRIO3.
.
O METER PEAK LED DRIVE
i fe ia = a Aa)
a RES | at LY
VRIOS- PEAK
a) (4) (5) 2
Playback Section
+10
SS
($$ ey
(6) 47dB Yr
©
(3) Vise
[TV OUTEUT;
0)
x.
a
aR \/
~l0
aan
METER 9,5dB
© Q) +3VU 9
-20 (2) 2048 ~2i0a en
6 Ee
$ -34d8 RICE
~40
~40d8 ~ NOTE: e REF. Nos. shown in the diagram relate only to the.
-50
VRIOL
:
left channel.
.
a)
e 0dB=0775 V.
;
-60
—e
OUTPUT control (VR402) is positioned at Specified ——4
Output Level. pe : |
oe -720B
'e . Each level given in the diagram shows values during
BAe licen
playback with MTT-150 Test Tape (Dolby tone).
e VR101: Output level adjustment
' Recording Section
#10
((5)
vR402 :
es @) (2) rode
0 @) zs
—V (580mv)
a
. -8dB
-10
4)
(8)
Negus
|_|
3.548 (9)
aisas : (9) VRIO4 ec _s METER
~20 FEz==e
"+ 3VU ~2idB
i
ILINE IN! VR4 ONLINE IN) VRIOS 2048 (7)
~25dB
moe
6)
VRIO2 ~26-548
t\
7
an]
~40 eT
=
BIAS |
VR40I(MIC) BIAS2 _|
-50 6)
NOTE: ©
REF. NOs. shown in the diagram relate only to the input Level.
:
ae
left channel.
e = 6Each level given in the diagram shows values when
6 6748
e
OdB=0.775 V
.
--a 400 Hz Specified Input Level is applied.
e
OUTPUT contro! (VR402} is positioned at Specified
e
VR102: Input Level (Dolby calibration) adjustment
-80
Output Level.
e
VR104: Record Level (2) adjustment
22
e RECORD control (VR401) is positioned at Specified
VR105: Record Level (1) adjustment TA