RXD-NV500/NV600
10
CIRCUIT DESCRIPTION
PIN NO
NAME
I/O
CONNECT
DESCRIPTION
1
FAN_ON
O
FAN CONTROL
H=OFF
L=ON
2
FAN_HI
O
FAN SPIN SPEED SEL.
H=LOW
L=HIGH
3
NC
O
NO USED
4
VSS
GND
GND
5
VIDEO_INPUT_SW2
O
VIDEO1/2 SELECT SW2
L: FIXED
6
VIDEO_MUTE
O
VIDEO SIGNAL OUTPUT MUTE
SAME TIMING OF POWER
H=MUTE OFF
7
VIDEO_INPUT_SW1
O
VIDEO1/2 SELECTOR SW1
H=VIDEO2
L=VIDEO1
8
DATA
I
DATA INPUT
9
CLK
I
CLOCK INPUT
10
STB
I
LATCH INPUT
11
CLR
I
RAM CLEAR INPUT
12,13
NC
I
NO USED
14
VDD
POWER SUPPLY
(4) AMP EXPANDER IC PIN DESCRIPION : NJU3711D (X07:IC3)
(PORT TRUE TABLE)
9
AB-1
L
H
H
8
AB-2
L
L
H
A/B
Lo
Mid
Hi
7
R/P
2
BIAS
9
AB-1
8
AB-2
STOP
L
L
L
L
PLAY
L
L
L
L
FF
L
L
L
L
RWD
L
L
L
L
REC
H
H
H
H
ARM
H
H
H
L
REC PAUSE
H
L
H
L
How to Use Test Mode for Repair.
Need the remote controller if carry out this test mode.
Cassette Deck
Setting: Plug the power cord in the wall outlet with
pressing the TAPE-PLAY key on the unit.
Cancel: Pull out the power cord from the wall outlet.
Tape LED is blanking in test mode.
LEDs shows leaf switches condition as follows when
press STOP key on the unit.
LED
SWITCH CONDITION
CD
Mis-erase prevention (FWD)
TUNER
Mis-erase prevention (REV)
MUTE
Tape detection
STEREO
Kind of tape(CrO2)
Recording/playback check
a) Rewind and playback tape after recording any for 4 secs
when TUNER/BAND key on the unit is pressed.
b) More 4 secs recording if the TUNER/BAND key is
pressed in record mode.
c) In this test mode, TUNER LED is blanking.
d) LEDs shows record level as follows when press MUTE
key on the unit.
LED
INPUT LEVEL
MUTE
0dB(low)
STEREO
+3dB(high)
Initialization
a) The unit returns to factory-out condition if CD EJECT key
on the unit is pressed.
b) The display of remote controller shows mechanism error
(CD: CD_ERR, cassette: X_ERR) if the unit is carried
out no mechanism initialization.
c) The display of remote controller shows "INITIALIZE" in
mechanism initialization.
