Teac Esoteric R-9000 - Step-up Coil Check; Bias Trap (REC) Adjustment; Built-in Oscillator Adjustment

'R-9000/V-9000_-
11 SETTING TAPUT SIGNAL paged SEASIRING POINT, AEHARKS
‘ © 4 (or CHECK) RESULT
BBR RE AN 8 F Ee ROENT - A is
L-ch : Left lead:of (332
C332 MAU—K Refer to
15. Step-up coil R-ch : Right tead of 0432 | Fig. 9-2
RRYTP 7 | pane BS adove sane ce a «303/403 Ca? YK
ude :
Set to the maxitum negative voltage
OCHIIIDS—-GUiBANC & & 3 HA
16. Bias trap (REC) {. Connection ; Fig.5-9 Ko signal TP.8/1P.9 :
WAPR-bF Tape : HIT-5571 (METAL) pote 0305/0405 Hinisua reading
yD (See) Hode ©: RECORD vias 284 PAR)
Peak level meter :
Adjust R554 (400HZ) so that the display indication
reaches the LEVEL W mark,
FARTFVAM LEVEL WR- AHR CHT TS HS RGA
17,
Built-in
Tape
:
No
toad
758
(400H2)
SHEETS.
- cMator Mode : STOP Ko signal + Adjust R543 (10KHZ) so that the display indication
Pees WI shorting (Fig. 5-2) Eris Peaches the BIAS a oark.
W2 shorting (Fig. 5-2) FARTVAI BIS AV—-ARTHET FS LI, RAG.
(10KH2) HRT S. ?
After adjustaent complete, open W1 and W2.
L PEAKE HI, We A-THIEGS.
oscillator
AC voltmeter
LINE
IN
TEST
LOAD
RESISTORS
F = eT
Fig. 5-10 Test setup for PHONES check
Frequency Counter
on
+8 fasHeses a.
R/P PCB P10 Lx ee OO +6 H \
SEs
of 42
°
DECK ‘GND i 2
under TEST. ~at /\. ,
- 1 ‘ \ a
- ~6 ba e-. J L---=---------. 4
Fig. 5-11 Test setup for bias osc. frequency adjustment
‘ 1 "|
a 400 12.56 04)
Fig, 5-12 Overall frequency response (NR OUT)
20