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Panasonic RQ-SX44 Service Manual page 16

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| RQ-SX44
RQ-SX44
1
2
3
4
5
M@ PRINTED CIRCUIT BOARDS AND WIRING CONNECTION DIAGRAM
MAIN
P.C.B
(REPI989A)
A
[vmss]
PLAYBACK
HEAL
[=] HEAD PCB,
CH11
SOLENOID
RECHARGEABLE
BATTERY
DC 1.2V
(RP-BP62EYS1)
H [oacey na]
MOTOR
+
is
|
|
|
|
|
BATTERY
| R6/LR6(UM-3)
i BATTERY=21.5V
BATTERY
CASE
e CHECK POINT OF SIGNAL
CH11
L
PRE
DOLBY NR
OUTPUT " OUTPUT
| GND | Ki
VR
TERMINAL
VR
| Reh | renwivan
VR
TERMINAL
| teh | r e s i
i
DOLBY NR _, VR
c
Cc
OUTPUT
~~ INPUT
Cc
VR
VR INPUT > oyTpuT
0
HP
TERMINAL
HP
TERMIANL
0
TERMINAL
DC-DC
CONVERTER
OUTPUT
(BOOSTER)
| GND
| eg |
PHOTO COUPLER
PULSE
(END)
OUTPUT
Notes:
Le
POWERAMP _ HEADPHONE
OUTPUT
OUTPUT
h
h
Rch
Loh
COM
Leh
Reh
COM
h
COM
ein this printed circuit board diagram, the parts
and foil patterns on the board facing toward
you are printed in black.
The opposite side is printed in blue.
¢ The " e" mark denotes the connection points
of double-faced foil patterns (through holes)
on both side of the printed circuit board.
¢ This printed circuit board diagram may be
modified at any time with the development
of new technology.
Mi SCHEMATIC
DIAGRAM
(See parts list on pages 22~24.)
(This schematic diagram may be modified at any time
with development of new technology.)
Notes:
Si
: FWD/REV switch in "FWD" position.
°$2
: VMSS switch in "OFF" position.
°$3
: B.S/Reverse mode switch in "OFF" position.
eS4
~~: DO NR switch in "OFF" position.
¢S8-1
: Tape detector (OPEN/CLOSE) switch in "OPEN" position.
¢$8-2
: Tape selector (METAL/NORMAL) switch in "OFF (METAL)"
position.
¢ $301
: (MB) switch.
¢ $302
: REW switch.
¢ $303
: FF switch.
© $304
: (<>) switch.
eVR1
: Volume adjustment.
eVR2
: Tape speed adjustment.
¢ DC voltage measurements are taken with electronics voltmeter
from negative terminal of battery.
No mark... Playback.
MAX...100 uN
wolgme NE bee
e Signal line
wapees
© +B linc,
sam
: Playback signal.
e BLOCK
DIAGRAM
PLAYBACK
HEAD
TP14(15)
O TP 24(25)
ue
HEADPHONES
1C600
POWER
AMP
(VIBRATION )
TP48
9331, 332
1c4
MECHANISM
CONTROL.

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