Circuit Description; Initialization; Destination List Of Tuner; Test Mode - Kenwood RXD-M32MD Service Manual

RXD-M32MD
QQ
3 7 63 1515 0

1. Initialization

1-1 Setting of the Initial Conditions
While pressing the (STOP) key, plug the AC cord to AC
wall outlet.
1-2 Initializing Operation
A microcomputer is initialized for start when the AC
power is turned on while pressing the [STOP] key.
At that time, CD,MD and CASSETTE mechanisms are
also initialized.
During the initial conditions, the display shows "INI-
TIALIZE" and after that it will be returned to standby
conditions.
1-3 Initial Items
ITEMS
POWER
BACK LIGHT
VOLUME
BALANCE
AMP BASS
TREBLE
EX.BASS
LOUDNESS
INPUT SEL
INPUT LEVEL
BAND
LAST freq.
TUNER LAST Preset
TE
Channel
L 13942296513
AUTO/MONO
Preset Channel
CLOCK
PROG ON
(TIME)
CLOCK PROG OFF
TIMER (TIME)
SOURCE
Preset Channel
EXE MODE
OTT MODE
ASP
SLEEP
DIRECTION
RVS MODE
DECK TAPE EQ
OPERATION
MODE
PLAY MODE
REPEAT
CD RANDOM
OPERATION
MODE
PLAY MODE
MD REPEAT
RANDOM
OPERATION
MODE
www
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.
4
The error condition is displayed as "X" on the display.

CIRCUIT DESCRIPTION

STATE REMARKS
OFF
High
10
CENTER
0
0
ON
OFF
TUNER
0
FM
LOWEST FREQ.
- -
AUTO
TEST FREQ.
AM 12:00 E,T type 24H
AM 12:00 E,T type 24H
AM 12:00 E,T type 24H
TUNER
1
OFF
OFF AM 7:00
OFF
OFF
FORWARD
REVERSE
OFF
STOP
TRACK
OFF
OFF
STOP
TRACK NONE
OFF NONE
OFF NONE
STOP NONE
x ao
y
. i
8
1-4-3 MD mechanism
If a mechanism error occurs, "M" is indicated on the
display.
MD disc is ejected from MD mechanism.
1-4-4 If mechanisms (CD/DECK/MD) error occur, the display
is indicated as follows.
C M X S ERR
1-4-5 TAPE door switch diagnosis
If switches (open/close) error occur, "S" is indicated on
the display.

2. Destination List of Tuner

Set Type BAND
FM
J J
AM
FM
K,P K1
AM
FM
K2
AM
M,Y
FM
E1
AM
FM
X E1
AM
E1 FM
E,T
RDS AM
2-1 Discrimination Port for Destination
Q Q
3 6 7 1 3
TYPE R292 [Ω] VOLTAGE [V]
J 910k
K 220k
M1 100k
X 47k
E,T 12k
AVdd = 5.0 [v]

3. Test Mode

3-1 Setting of the Test Mode
AUX MODE
TUNER MODE
TAPE MODE
CD MODE
MD UNIT MODE
MD MECHA. MODE
SUB CLOCK OSC
DIAGNOSIS
u163
.
2 9 9 4 2 8
Receiving Frequency Channel
Range Space
76.0MHz~90.0MHz 100kHz -10.7MHz 25kHz
531kHz~1629kHz 9kHz +450Khz
87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz
530kHz~1700kHz 10kHz +450kHz
87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz
530kHz~1610kHz 10kHz +450kHz
87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz
531kHz~1602kHz 9kHz +450kHz
87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz
531kHz~1602kHz 9kHz +450kHz
87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz
531kHz~1602kHz 9kHz +450kHz
1 5 0 5 8 2 9 9 4
AVdd
4.505
3.438
R291
2.500
100k‰
1.600
0.536
R292
AUX Key+AC-ON
TUNER (BAND) Key+AC-ON
TAPE PLAY Key+AC-ON
CD PLAY Key+AC-ON
MD PLAY key + AC ON
(MD version only)
MD REC key +AC-ON
TAPE REC Key+AC-ON
The oscillation diagnosis(existence
of oscillation and measurement of
period) of a sub clock is performed
before the test mode is entered. If
the diagnosis result is OK, the sys-
tem enters the test mode. If the
m
diagnosis result is NG, the oscilla-
tion of the sub clock is diagnosed
co
again. If the result is OK, the sys-
tem enters the test mode. If the
diagnosis result is continuously NG
5 times,the system stops with
"ERR1" and "ERR2" displayed.
9 9
IF RF
9kHz
10kHz
10kHz
9kHz
9kHz
9kHz
2 8 9 9
U-COM
95pin
(TYPE)