Backup; Initial State; Way Of Resetting A Microprocessor; Adjustment - Kenwood DM-SE7 Service Manual

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1-3 Backup

Each following condition is backup to the memory with
ON/OFF of the AC power.
• Information of TOC
• UTOC information
(Settlement contents of "editing etc. of record, TRACK edit-
ing, titles")
• Condition of POWER ON/OFF
• Condition of REC INPUT
• Condition of AUTO/MANUAL
• Setting of DIGITAL REC LEVEL
• Contents of the presetting title

1-4 Initial state

POWER =OFF
REC INPUT =ANALOG
AUTO MANUAL =AUTO
PLAY MODE =TRACK
REPEAT =OFF
TIME DISPLAY =SINGLE(+)
REC LEVEL =-12dB
DRIVE =ON
Preset title =PRE1 : Pops
=PRE2 : Rock
=PRE3 : Classic
=PRE4 : Jazz
=PRE5 : Disco
=PRE6 : Best Hits
=PRE7 : Air Check
=PRE8 : No.
TE
L 13942296513
=PRE9 : Vol.

1-5 Way of resetting a microprocessor

When turning on while pressing EJECT key,
DM-SE7/SE9 initializes and starts a microprocessor.
INI SW 58pin
High Overseas ; KATAKANA uncorrespondence.
Low Japan
1-6 Key matrix :
0.00 0.49
-0.47V -1.46V
KR 0 - -
÷ ÷ 8 8
KR 1
3 3 7 7
KR 2
KR 3 -
*DM-SE7/SE9 doesn't function.
Mode for the inspection : It utilizes for the existence or non-
existence of the FL display.
• Way of setting
Turn on the AC power while pressing STOP(7)key.
• Way of canceling
Press STOP(7)key.
www
• Contents
Press(¢)key or(4) key.
Then, DM-SE9 becomes the following test mode.
Press PLAY(3) key, to fix each test mode.
.
To cancel each test mode, Press PLAY(3) key once again.
• DOT TEST
(It becomes "Niagara indication" when PLAY key is
pressed.)
CIRCUIT DESCRIPTION
Description
CYBER TITLER uncorrespondence.
; KATAKANA correspondence.
CYBER TITLER correspondence.
1.48 2.48 3.48 KEY OFF
-2.46V -3.46V -4.45V 4.47-5.0V
- - - -
*O.T.E *ATT UP *ATT -
DOWN
¡ ¡ 1 1
REC INPUT
0 0 ¢ ¢ 4 4
TIME
DISPLAY
x ao
y
i
DM-SE7/SE7(G)/SE9
8
• SEG TEST
(When PLAY key is pressed all FL are lighted.
Indication changes cyclically as follows when ¢ or 4
key are pressed.)
"All FL light up"
"FL turn off the lights"
"KATAKANA"
"All FL light up"
• KEY TEST
(For the mode for the production line, in the service, it does-
n't use.)
1-7 Extension IC
PIN No. IC
4 Q1
5 Q2
6 Q3
7 Q4
14 Q5
13 Q6
12 Q7
11 Q8
Q Q
3 6 7 1 3

2. Adjustment

Refer to the adjustment ( the page ) of the service manual
(B51-5387-00) of 1050MD/DM-5090/9090.
But, the key to operate is different as follows.
DM-SE7/SE9
PLAY
STOP
PAUSE
DM-SE7/SE9 1050MD/DM-5090/9090
STOP
FF
FB
-
-
u163
O.T.E
.
2 9 9 4 2 8
Port name I/O Explanation
- O DIN selector 1
FLDRST O FL driver reset
ADRST O A/D reset
DIGRST O DIN reset
DRIVE O Drive ON/OFF
DINSEL2 O DIN selector 2
EMPHA O Play emphasis ONÅ^OFF
DARST O D/A reset
1 5 0 5 8 2 9 9 4
1050MD/DM-5090/9090
ENTER Decision of MODE
FADE / DELEAT Cancellation of MODE
SET Go to the next step
Description
A continuation replay /
FADE / DELEAT continuation recording
are canceled.
The thread moves to the
FF periphery only while
pressing a key.
The thread moves to the
FB internal circumference
only while pressing a key.
The continuation
recording menu choice
Every time pressing a
REC INPUT key, DM changes the
mode at the pit and the
groove "
m
REC MODE Spindle servo mode
change (CLVS and A)
co Every time pressing a
TITLE INPUT key, DM changes the
contents of the display.
9 9
2 8 9 9
Description
5