RD-VH7
CIRCUIT DESCRIPTION
8
9. Common Operation in AUX/TUNER Test
Mode
9-1 Bias and Main Volume Level
Set unit to aux or tuner test mode.
Select the proper value with CD PLAY/PAUSE or CD
STOP key.
Multi control knob is available for same setting after
mode key is pressed.
9-2 FAN Operation
Display C shows fan condition.
volume
bias
display D
0
pure A low
PURE#A#L
1
pure A low
PURE#A#L
20
pure A mid
PURE#A#M
40
pure A high
PURE#A#H
80
pure B low
PURE#B#L
FAN
Display C
off
FAN#OFF#
low
FAN#low#
high
FAN#Hi##
10. MICROPROCESSOR ; M30622MC-570FP(X09,IC4)
10-1 MICROPROCESSOR PERIPHERY BLOCK DIAGRAM
KEY MATRIX
* REFERENCE VOLTAGE: 5.0V
CD ASP
LA9241M
CD MECHA.
CDM-34
TUNER UNIT
(RDS DECODER)
E/T ONLY
RELAY (PWER, SP, HP)
SL16
LCD DRIVER
SED1565
LCD
REM
BACK UP
FAN
BIAS
MUTING
PROTECTION
REC OUT SEL
LED
KEY
CD DSP
LC78628E
SYSTEM IC
LC75396NE
X09, IC400
X09, IC401
X09, IC2
X09, IC4
M30622MC-570FP
E N C O D E R
AUDIO L E V E L
D E S T I N A T I O N
TILT S E N S O R
HEADPHONES D E T E C T O R
VOLTAGE
0.000
1.061
1.061
1.726
1.726
2.437
2.437
3.156
3.156
3.827
3.827
4.586
4.586
KEY1
89PIN
MODE
POWER
KEY
OFF
KEY2
90PIN
STOP
SKIP
DOWN
PLAY/PAUSE INPUT
BAND
KEY
OFF
KEY3
91PIN
SKIP
UP
EJECT
TUNING
UP
TUNING
DOWN
AUTO/MONO
KEY
OFF
1p
99.10.30
3:08
PM
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