Teac R-919X Service Manual

R-919X
head check jig B
(5736006700)
head check jig A
(5736006600)
START
|”
Erase
Head
Height
Adjustment
(Using
Jigs)
7
FWD
erase
head
REV
erase
head
1, Connect the deck to test equipment as shown in
Fig. 4-2. REC*PLAY
2. Insert the head check jig A into the cassette holder. head
Close the halder then push the jig in firmly.
3,
Check,
in
FWD
play*,
height
of
FWD
erase
head‘s
A
c
E
F
Db
B
tape guide using head check jig B. If needed, adjust
by turning nut A.
4. Similarly, check REV erase head in REV play*. If
needed, adjust by turning nut B.
5. Repeat steps 3 and 4 until both requirements are
satisfied.
Fig. 4-7 Head height adjustment
* Pushing up the cassette switch (Fig. 3-2), place in play mode.
Keep the switch pushed up during adjustments.
REC-PLAY Head Height Adjustment
1. Check, in FWD play*, height of REC*PLAY head’s
tape guide using head check jig B.
2. In REV play*, check it also.
Replace spacers below screws C and D with thinner
(thicker) ones. (For both C and D, the same num-
ber of spacers having same thickness should be added
or substracted).
F Spacer [1mm _| 5800695000
[Spicer | 02 mm |
[Spacer [0:28 mm | 5800595200__
REC-PLAY Head Spacers
* In both FWD and REV,
higher (lower).
Tape guide height?
* In both FWD and REV, the head check jig B can just
Bass smoothly between the edges of the guide.
or
* Between FWD and REV, relative height is reversed
(ex.: higher in FWD, lower in REV).
REC-PLAY Head Azimuth Adjustment
1, Playing a MTT-150 tape in the FWD or REV direc-
tion, check that the phase relationship between
L-ch and R-ch is within 45°.
2. Playing 10 kHz section of a MTT-356 or MTT-256
tape in the forward direction, adjust screw E so
that phase relationship becomes 0°.
3. In REV play, make the same adjustment with
screw F,
How many degrees was screw(s) in steps 2 and 3 More than 45°
turned?
| Less than 45°
Tape Path Adjustment
Playing MTT-902 mirror tape in FWO and REV, check
the following contents.
4
+ {s there tape curling at each tape guide?
+ Is the head core (silver) of the REC-PLAY head
visible from the tape edge?
+ Curling occurred
* Visible
+ Not touching
Erase Head Height Adjustment (Using Tape}
Using MTT-902 tape, correct by repeating tape guide
height adjustments between FWD erase head in FWD
play and REV erase head in REV play.
Adjust screw A for FWD erase head, screw B for
REV erase head.
+ No curling
+ Not visible
- Touches
COMPLETED
V-970X/R-919X

Teac R-919X Specifications

General

Brand	Teac
Model	R-919X
Category	Cassette Player
Language	English