Teac A-650 - Electrical Adjustment Locations; Adjustment Potentiometer Locations and Functions

6-1. ADJUSTMENT LOCATION
INPUT/OUTPUT PC BOARD
VR2O1
VR202
MUTE PC BOARD
CONTROL PC BOARD
r
— REC. EO
I II I. II III I 11 III I,
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u
T-5B7
Fig. 6-1
Adjustment Location
20
VR101/201
VR1 02/202
VR 103/203
VR104/204
VR 105/205
VR 106/206
VR 1 07/207
VR1O8/2O8
VR601
VR602
Playback EQ
Playback level
VU meter calibration (Playback)
VU meter calibration (Record)
Record level (3)
Record level (2)
Record level (1)
Peak level indicator adjustment
DC 13 V adjustment
DC 24 V adjustment
VR760/860
VC60 2/601
VC604/603
VC606/605
L101/201
L703/803
L750/850
L75 1/851
L752/852
DOLBY FM/COPY calibration
Record bias (1)
Record bias (2)
Record bias (3)
Bias trap
Bias trap
Record EQ (1)
Record EQ (2)
Record EQ (3)
VR602
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I
DC24VADJ
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Ct
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DC 13V ADJ
Q
8
tn
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z
m
8
O r — i
BIAS
TRAP
LIO!
I -------------------- 1
I DOLBY '
I FM/COPY CAL,
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I
L8O3 L7O3
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PLAYBACK
EQ
■ PLAYBACK
LEVEL
I I
VR6O4
o
R
L meter J
ADJ
L750 L75I L752 LB52 L85l L85O
o. 'J, o, O. o,
1 ---- "-"El-
I i RECORD/PLAYBACK PC BOARD
L L
G O
VRKDI VRI02
I 2 3 3 2 1
G G G G O G
H- 1 R ~~l
1 ------------ BIAS ADJ ------------ 1
_____ I
MOTOR SERVO
PC BOARD
G
TAPE SPEED ADJ
r
REC METER
CAL
POWER SUPPLY PC BOARD
VR6O3
G
3201 VR2
G G
R R
I
VC604 VC605 VC601
VC 602 VC 606 VC 603
VR2O5 © VR208 |
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VR203 VR2O4 VR2O6 | J
— r -> r I
R O O VR207 | L20I
I O' — ’ I fiR-,
? PLAYBACK REC
METER CAL CAL
1 O'-i
g VRI07
------- Q2 L
VRI03 VRiO4 VR !? 6
VR105 O VRI08