Kenwood R-SE-7G, Руководство по обслуживанию

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R-SE7/SE-7 ( G )
3
CIRCUIT DESCRIPTION
Channel BAND E TYPE Channel BAND E TYPE
01ch FM 87.50MHz 11ch FM 90.00MHz
02ch FM 97.50MHz 12ch FM 98.00MHz
03ch FM 108.00MHZ 13ch FM 98.50MHz
04ch AM 630kHz 14ch FM 106.00MHz
05ch AM 990kHz 15ch AM 531kHz
06ch AM 1440kHz 16ch AM 990kHz
07ch FM 87.50MHz 17ch AM 1602kHz
08ch FM 87.50MHz 18ch FM 87.50MHz
09ch FM 87.50MHz 19ch FM 87.50MHz
10ch FM 89.10MHz 20ch FM 87.50MHz
1. INITIAL STATE
(1) AMP-related block
E
POWER OFF
E
SELECTOR SOURCE TUNER
E
DISPLAY SELECTOR
E
N.B. CIRCUIT OFF
E
A CLASS VOLUME VALUE 1.40 STEP
E
AB CLASS VOLUME VALUE 7 STEP
E
PURE MODE NORMAL (AB CLASS)
E
AUTO POWER SAVE OFF
E
MULTI CONTROL MODE INPUT SEL.(R-SE9 only)
(2) TUNER-related block
E
BAND FM
E
FREQUENCY Lower-limit value of
receiving frequency.
FM 87.5 MHz
AM 531 kHz
E
AUTO/MANUAL AUTO
E
P.CH MEMORY Last frequency
E
Last P.CH 01ch
E
RDS DATA TABLE MEMORY NO DATA
(3) TIMER-rated block
E
CLOCK STOP (AM12:00)
E
PROGRAM WORKING MODE OFF
CONTENTS OF PROGR. ON=AM 12:00
OFF=AM 12:00
PLAY MODE=PLAY
SELECTOR=TUNER(1ch)
REC MODE OFF
E
O.T.T WORKING MODE OFF
OTT ON TIME AM 7:00
(4) TEST PRESET FREQUENCY
2. BACKUP
This function holds the current state of the unit even if the
AC power of the receiver is turned OFF.
(1) Operation outline
The backup state set command signal (CE) of a microcom-
puter is set low when the AC power is turned OFF. The
microcomputer detects the signal and enters the stop state.
The microcomputer is reset when the AC power is turned
ON. The data for backup state confirmation is checked by
reset processing.
The microcomputer is initialized when the data was
destroyed. If it is not destroyed, the microcomputer is started
in the backup state.
E
The data for backup state confirmation is written in a RAM
area.
E
The microcomputer is set to the STOP mode so as to
save the power consumption.
E
A backup state set command signal is detected by a timer
interrupt of 1 msec.
E
The backup guarantee period is set in a circuit.
(2) Backup state setting
E
The data (A596, 5A69H) for backup state confirmation is
written in a RAM area.
(3) Contents of backup data to be held
[[[
AMP
[[[
E
POWER ON/OFF
E
DISPLAY MODE
E
SELECTOR SOURCE
E
N.B. CIRCUIT MODE
E
A CLASS VOLUME VALUE
E
AB CLASS VOLUME VALUE
E
PURE A MODE
[[[
TUNER
[[[
E
LAST BAND
E
PRESET CHANNEL/RECEIVING STATION FRE-
QUENCY/PI/TA/PTY/PS
E
LAST RECEIVING STATION FREQUENCY AND PRE-
SET CHANNEL (AM/FM)
E
PRESET MEMORY data (1ch~40ch)
E
AUTO/MANUAL
[[[
CLOCK/TIMER
[[[
E
LAST CLOCK DATA
E
PROGRAMMED CONTENTS/PROGRAM TIMER WOR-
KING MODE ON/OFF
E
O.T.T. SETTING TIME/O.T.T. WORKING MODE
ON/OFF
ƒ
The initial setting is performed in a following event :
1. When backup memory data is destroyed when reset is
applied to the microprocessor.
2. When the power cord is plugged in to the AC wall outlet
while pressing the on/standby key.
R-SE7/SE-7(G)(K) COVER( 97.11.28 0:22 AM y [ W 6
www.freeservicemanuals.info 25/8/2013
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