Fostex G16S - Page 22

5) Turn the FRONT/REAR SW to FRONT. Then, rotate and fix the PITCH CON. KNOB
at the center position.
6) Adjust RI 01 on the CONTROLLER PCB (there is a hole provided on the back side of the
Controller to rotate the pot) so that the PITCH value shows “ 0.0 ” .
ADJUSTMENT ITEMS
ADJUSTING PART
ADJUSTMENT LOCATION
REF. CLAUSE
EDIT TENSION (T. UP)
EDIT R3 (4.7KÎ2B)
4.2.6.5
EDIT TENSION (SUPPLY)
EDIT R4 (4.7KÎ2B)
4.2.Ó.5
PLAY TENSION (T.UP)
PLAY R2 ( 47KS2B)
TENSION
4.2.Ó.6
PLAY TENSION (SUPPLY)
PLAY R5 (100KÎ2B)
POD PCB
4.2,6.6
F.F. TENSION
FF RI (22KÎ2B)
4.2.6.7
RWD TENSION
RWD R6 (22KQB)
4.2.Ó.7
COUNT PULSE DUTY
R302 (33KQB)
4.2.6.10
COUNT PULSE DUTY
R303 (33KÎ2B)
4.2.6.10
WINDING SPEED HIGH
H R300 (100KÎÎB)
SYSTEM CONTROL
4.2.6.10
WINDING SPEED LOW
LR301 (330KÎ2B)
PCB
4.2.6.10
REEL PULSE DUTY L
R304 (47KRB)
4.2.6.11
REEL PULSE DUTY R
R305 (47KÌÌB)
4.2.6.11
PITCH CONTROL DUTY
R85 (15KS2B)
4.2.7.1
PITCH CONTROL DUTY
R86(15WB)
DD CAPSTAN
4.2.7.1
PITCH CONTROL ADJ
R87 (1WB)
PCB
4.2.7.3
PITCH CONTROL ADJ
R101 (10KS2B)
4.2.7.3
4.3 Record / Reproduce Amplifier Checks and Adjustments
Reproduce Alignment Tape : MRL41J326 G24S
Fostex 9200 G16S
Blank Tape : We would like to suggest that you use
AMPEX 456 1 inch tape for G24S and AMPEX 456 Vz inch tape for G16S.
4.3.1 Checking and Adjusting of Head
1) Connect a level meter and an oscilloscope to OUTPUT jack 1 and 24 (G24S) or OUTPUT
jack 1 and 16 (G16S) for observing a lissajous waveform.
2) Tangency adjustment
If the head gap does not face the tape correctly as shown in the drawing below, a correct
recording and/or playback level cannot be obtained.
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