Test Mode - Sony DTC-1000ES Service Manual

Digital audio tape deck
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DTC-IOOOES
mc-ro0oEtt lrst
HoDE
For DTC-1000ES, the internal CPU modes can be
displayed for
servicing on the counterts seven-
segment display.
The following modes ean be displayed:
Mechanical operation
(Meehanical mieroeomputer operation)
Mechanical instruction
(Main mierpcomputer instruetion)
Operation/operation eompletion
End sensor normaVabnormal
Cassette half existence
OPEN/CLOSE
Tape end (take-up)/normat
Tape end (supply)/normal
A/B head RF existence
WIDTH I.5 tirnes normal speed/NOT 1.5 times
normal speed
Soft tape/normal tape
REC inhibit/OK
Drum normal/abnormal
Tnay in/out
TEST mode/NOT TEST mode
Take-up end hold/NOT hold
Tray loading normaVabnormal
Position EJECT/NOT EJECT
Measure End
Fiæ;a
Take-up Reel Stop
Supply Reel Stop
Measure completion
To dlsplay the test modes, conneet pin 6? of
meehanical microcomputer IC512 to GND, and
press the eounterrs MODE switeh for three
times.
(c) The indicator display is deseribed below.
Using indieators (1) through (9), data in main
mierocomputer is
displayed by
four
bits
(hexadecimal).
0tems (l), (3), (4), (5), and (6) are mechanieal
mieromcomputer data; (2) and (g) are main
mieroeomputer
data;
and
(8)
is
reel
microcomputer data.)
REMAINING
PGM TIME
COUNTER MEMORY
-l=1, l--t Fj",g fl,
e
@@ @ @
EMPHASIS
E
E
E
,5,5 --tl,-l
@ @
@ @
COPY
PrcH|B
CAUTIC
SEARC
E
E
- 6
- 3
o ovE
- l o
;
R
(a)
æ - 5 0
- 4 0
- 3 0
-20
(b)
D i s p l a y
p o s i t i o n
D e s e r i p t i o n
o
M e e h a n i c a l o p e r a t i o n
@
M e c h a n i e a l i n s t r u e t i o n
( m a i n m i c r o -
e o m p u t e r t o m e c h a n i e a l m i c r o c o m p u t G
@
0
I
2
3
O p e r a t i o n m o d e ( O P E R A T l o l { /
ooTFL-E,MN)
End sensor
(NORMAL/ÂEffiFED
C a s s e t t e h a l f ( y E s / N o - )
oPEÀr (oPEr{/c-ffiE)
@
0
1
2
3
T a p e e n d t a k e - u p r e e l
( l O P l N q T )
T a p e e n d s u p p l y r e e l
( E l { D / N O R )
RF (NO RF/RF)
WIDTH (15 TIMES NORtritAL SPEED/Nd
ffi)
@
0
1
2
3
Tape (soFT/ffiL)
R E C ( I N H I B I T / M )
DRMERR ( DRI'M NORIT,IAL
/AB-rem T)
TOIJT (TTAY IN/ôTT)
@
0
I
2
3
FTEST ( TEST MCDE/NdÎ-MSFI'FDE)
îETDH (TAKE-UP EIID HOLD/MLI
TI,ABF (TRAY LOADITG }ORMAL/
ÆmFm[)
PEJCT ( EJEC,îlos IT IO.r/FOIffi
FôSTT'IN)
@
0
1
2
3
I n . ,
u r " o . ( D i g i t m a y v a r y . )
@
0
I
2
3
@
0
I
2
3
N o t U s e d .
( O i g i t m a y v a r y . )
M e a s u r e c o m p l e t i o n ( æ M P L E T E D / N i
coilr-FfErED-)
- 5-

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