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igher than
je in within
d "Reverse"
1 page 17.)
speed adj.
nction
tatus detection
.": REV
detection
ormal condition
TOP, REV PLAY
2 switching
2, "L": CD) mode
rse distinction
'L": Forward,
signal.
up signal.
signal for
nal. L: LED ON
21
Vop
Power supply terminal. DD
converter output 2.9V~3V
BE eel ee
ON). L: Motor ON
Rae
ae
DC/DC converter drive signal.
Beep sound output when the
2 | cates |= [ve [1 [roms nt
Mi HOW TO CHECK OPERATIONS DURING DISASSEMBLY AND
SERVICING
¢Check operations during disassembly following the steps.
1) Set the condition as shown in Fig. 1 in accordance with Ref. Nos. 1 and 2 on Page 5 of the
Disassembly Instructions. (DO NOT remove the solders on the head FPC.)
2) Connect the PCB and motor with the extension cord (RFKZ0002).
3) Solder the short land with a lead wire and then short-circuit them.
¢Short-circuit across C51 (between IC4 @) pin and ground.)
¢Short-circuit the short land @.
Note: See next page for the points to be short-circuited.
4) Connect the rechargeable battery (+) terminal and the rechargeable battery (—) terminal foil to the
power source (1.5V) with a lead wire. (See Fig. 1)
5) Connect the rechargeable battery (—) terminal foil and the rechargeable battery (—) terminal with a
lead wire (mechanism earth).
6) Manually operate the plunger when checking the PLAY/STOP operation.
¢ Manually pulling the plunger arm once sets the FWD mode; twice, REV; and, three times, STOP.
Note:
¢ Operate the plunger manually.
Even if the operation buttons are pressed, the plunger will
not be actuated.
¢Even if the mechanism unit is switched to the FWD mode in Step 6, the head change-over
switch (IC1) will remain in the REV position, so set the REV mode to check the audio.
e After checking, unsolder the short land ® and lead wire.
Terminal | Terminal
f
18
SOL
Solenoid drive signal for
playback.
H.P. JACK
Foil of Rechargeable
battery (—) terminal
Solder the extension cord
to foil of motor terminal
Rechargeable battery
(+) terminal
Plunger arm
(Pull it in the direction
Power supply
Motor extension
of the arrow.)
1.5V
cord (RFKZ0002)
Battery terminal
Plunger
Rechargeable battery
(—) terminal
Motor
Black
White
Red
Mechanism earth
e Short circuit points
SCHEMATIC DIAGRAM
Short-circuit across C51.
Short-circuit the short land ©.
R77 47K
Q3
MAI4
KTWI
2SDI328STW
STABILIZER
al2
RVTDTAII4TU
SWITCHING
(REMOTE)
Qi2
3v
3v
"""\ Short land by)
~—
ov
PRINTED CIRCUIT BOARD
Ss
hort-circuit the short land ®.
2.6V
el
s a t h te
2SB8I5B7TW
SOLENOID DRIVE
R32
Q4
sy
"
os
100
iV
=
Qe
Short-circuit across C51.
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