Circuit Description - Kenwood Rxd-803 Service Manual

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
• VOLUME
• BALANCE
• INPUT SELECTOR
• SOURCE DIRECT
• MUTE
• AUTO POWER SAVE
• AUX INPUT LEVEL
• AUX INPUT MODE
• DISPLAY MODE
(2) TUNER
• BAND
• FREQUENCY
• AUTO/MONO
• PRESET CHANNEL
2. Destination List of Tuner
Se t Type BAND
FM
K, P K1
AM
FM
M ,Y K 2
AM
FM
M,Y , X E1
AM
E1 FM
E, E 2
RDS AM
FM
E 2
T MW
RDS
LW

CIRCUIT DESCRIPTION

STANDBY
14
CENTER
TUNER
OFF
OFF
OFF
-1
2ch(EXCEPT E,E2,T)
AUTO
FM
LOWEST FREQUENCY
AUTO
– – ch
Receving Frequency
Range
87. 5MHz 108. 0MHz
530kHz 1700 kHz
87. 5MHz 108. 0MHz
530kHz 1610kHz
87. 5MHz 108. 0MHz
531kHz 1602kHz
87. 5MHz 108. 0MHz
531kHz 1602kHz
87. 5MHz 108. 0MHz
531kHz 1602kHz
153kHz 7 2 9 kHz
RXD-803/803E/853/853E/A83
(3) CASSETTE DECK
• REVERSE MODE
• TAPE A/B
• TAPE DIRECTION
(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
• SLEEP TIMER
(5) Equalizer
• Equalizer
• CUSTOM EQ.1~3
• EX. BASS
• DSP
• SURROUND
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
Channel
I F
Space
100kHz +10. 7MHz
10kHz +450 kHz
100kHz +10. 7MHz
10kHz + 450 kHz
50kHz +10. 7MHz
9kHz +450 kHz
50kHz +10. 7MHz
9kHz +450 kHz
50kHz +10. 7MHz
9kHz +450 kHz
9kHz +450 kHz
REVERSE
B
FORWARD
OFF
OFF
OFF
FLAT
ON
OFF
OFF
RF
25kHz
10kHz
25kHz
10kHz
25kHz
9kHz
25kHz
9kHz
25kHz
9kHz
9kHz
5