Kenwood RXD-803, Service Manual

Page: 5 / 35

RXD-803/803E/853/853E/A83
5
CIRCUIT DESCRIPTION
1. Initialization
1-1 Setting of the Initial Conditions
While pressing the [ENTER] key, plug the AC cord into AC
wall outlet.
1-2 Initializing Operation
• A Microcomputer is initialized for start when the AC power
is turned on when pressing the [ENTER] key.
At that time, CD and cassette mechanisms are also initial-
ized.
• During the initial conditions, the display shows *INITIAL-
IZE* and after that it will be returned to standby condition.
1-3 Initial Items
(1) AMPLIFIER
• POWER ON/STANDBY STANDBY
• VOLUME 14
• BALANCE CENTER
• INPUT SELECTOR TUNER
• SOURCE DIRECT OFF
• MUTE OFF
• AUTO POWER SAVE OFF
• AUX INPUT LEVEL -1
• AUX INPUT MODE 2ch(EXCEPT E,E2,T)
• DISPLAY MODE AUTO
(2) TUNER
• BAND FM
• FREQUENCY LOWEST FREQUENCY
• AUTO/MONO AUTO
• PRESET CHANNEL – – ch
(3) CASSETTE DECK
• REVERSE MODE REVERSE
• TAPE A/B B
• TAPE DIRECTION FORWARD
(4) CLOCK
• CLOCK 0:00(E,E2,T)/12:00am(OTHER)
• Program Timer Recoding
ON TIME 0:00(E,E2,T)/12:00(OTHER)
OFF TIME 0:00(E,E2,T)/12:00(OTHER)
• Program Timer Play
ON TIME 0:00(E,E2,T)/12:00(OTHER)
OFF TIME 0:00(E,E2,T)/12:00(OTHER)
• Program on Mode OFF
• SLEEP TIMER OFF
(5) Equalizer
• Equalizer OFF
• CUSTOM EQ.1~3 FLAT
• EX. BASS ON
• DSP OFF
• SURROUND OFF
1-4 Mechanism Initialization
1-4-1 CD Mechanism
• If a mechanism error occurs "C" is indicated on the dis-
play.
1-4-2 DECK mechanism
• When the initial condition becomes NG for the third
time,decide the error.
The error condition is displayed as "X" on the display.
1-4-3 Error display
• If both mechanism (CD/DECK) error occur, the display is
indicated as follows.
• C X ERR
Se t Type BAND
Receving Frequency
Range
Channel
Space
I F
RF
FM 87. 5MHz 108. 0MHz 100kHz +10. 7MHz 25kHz
K, P K1
AM 530kHz 1700 kHz 10kHz +450 kHz 10kHz
FM 87. 5MHz 108. 0MHz 100kHz +10. 7MHz 25kHz
M ,Y K 2
AM 530kHz 1610kHz 10kHz + 450 kHz 10kHz
FM 87. 5MHz 108. 0MHz 50kHz +10. 7MHz 25kHz
M,Y , X E1
AM 531kHz 1602kHz 9kHz +450 kHz 9kHz
FM 87. 5MHz 108. 0MHz 50kHz +10. 7MHz 25kHz
E, E 2
E1
RDS AM 531kHz 1602kHz 9kHz +450 kHz 9kHz
FM 87. 5MHz 108. 0MHz 50kHz +10. 7MHz 25kHz
MW 531kHz 1602kHz 9kHz +450 kHz 9kHz T
E 2
RDS
LW 153kHz 7 2 9 kHz 9kHz +450 kHz 9kHz
2. Destination List of Tuner