Teac Z-6000 - 6-6 MANUAL CALIBRATION; Internal OSC adj.; METER calibration; EQ calibration range

Z-6000
6-6 MANUAL CALIBRATION
Note:
All test points refer to REC AMPL PCB.
DECK settings:
NR SYSTEM sw: GUT
INPUT sw: LINE
MONITOR sw: TAPE
MASTER & REC PRESET LEVEL cont:
Specified pasition (item 9}
OUTPUT cont: Specified position (item 3} |
ITEM
SETTING ~ INPUT SIGNAL
29, Internat
OSC adj.
30, METER
calibration BYAS
EQ
REC/PLAY mode
TEST TONE OFF
MANUAL CAL
CrO, trimmer:
MTT-5061
REC/PAUSE mode
MANUAL CAL
center
LEVEL sw: on
EQ sw: on
ADJUST
or (CHECK)
TEAC test tapest
MTT-501:
MTT-S061:
MTT-5072:
For NORMAL record test
For CrO, recard test
For METAL record test
MEASURING
POINT: RESULT
REMARKS
R101 + R102
Repeat
fon OSC PCB}
TP,501/TP.601
Distortion min.
R103.
(on OSC PCB)
R100
{on OSC PCB)
TP,504/TP.GO1
~26 dB+0.5dB
{36.7 mV to’
41.1 mV}
Osc. freq.
approx, 315 Hz
TP,.501/TP.601
14 kHz + 0.5 kHz
LINE IN:
400 Hz/-9 dB
(436 mV}
CrO, LEVEL
trimmer
(R107/R116)
OUTPUT:
~5 dB (436 mV}
R596/R696
{on REC
AMPL, PCB)
PEAK PROGRAM
LEVEL METER:
OdB
REC/PLAY mode
Short circuit between
base and emitter on 0451
31. EQ calibration MANEAE Sat
range MTT-501
MTT-5061
EQ sw: on
Internal ose,
approx. 14 kHz
EQ trimmer
R103/R112
R104/Ri13
TP.502/TP.602:
Level range variable
by EQ trimmer
6dB + 1dB or more
MTT-501
32. BIAS calibration
range
| MTT-50%
MT T-5061
MTT-5072
REFERENCE
MANUAL CAL .
BIAS sw: on
; |
No signal
MTT-5072 R105/R714
REC/PLAY mode TP.503/TP.603
TEST TONE OFF Check (Read the bias
level)
BIAS OSC is nat
oscillated.
NORMAL
cro,
This value is
reference bias
current.
BIAS trimmer
TP.503/TP.603
Must be variable
against reference
value.
R109/R118
~2 dB to +2 dB
R110/R119°
-2 dB to +2 dB |
NORMAL
R111/R120
-1.5dB to +2 dB
REC/PLAY mode
MANUAL CAL
33, LEVEL
caljbration
range MTT-5601
24
MTT-5061
MTT-5072
LEVEL sw: on
Internal osc.
approx, 375 Hz
LEVEL
trimmer
OUTPUT:
Must be variable
against reference -
level of —5 dB
R106/R115
R107/R416
-2.5 dB to +2.5 dB
NORMAL
-2.5 dB to +2.5 dB
cro,
R108/R417 © -2.5 dB to +2.5 dB
METAL