Kenwood 1050MD Service Manual page 7

QQ
3 7 63 1515 0
1-2. Initialization
POWER
REC INPUT
AUTO/MANUAL
FADE
PLAY MODE
REPEAT
TIME DISPLAY
LEVEL METER MODE
DIGITAL REC LEVEL
AUTO TNO TIME
AUTO TNO LEVEL
FADE TIME
REC END WRITE
DRIVE
PRESET TITLE
TE
L 13942296513
2. Sub microprocessor : uPD784035GC
2-1. Sub microprocessor periphery block diagram
IC27 (Except DM-5090)
LC89170M
XMODE
IC31
MAIN u-COM
www
uPD784215GF
-508
.
CIRCUIT DESCRIPTION
= ON (DM-9090,DM-5090)
= ANALOG
= AUTO
= OFF
= TRACK
= OFF
= SINGLE(+)
= NORMAL MODE
= 0dB
= 2 sec
= 3 (-50dB)
= 3 sec
= ON
= ON
= PRE1 : Pops
PRE2 : Rock
PRE3 : Classic
PRE4 : Jazz
PRE5 : Disco
PRE6 : Best Hits
PRE7 : Air Check
PRE8 : No.
PRE9 : Vol.
X25- IC28 (Except DM-5090,K-type)
73 DQSY
DQSY
1 SCLK
SCLK
SRDT 78 SRDT
3 XMODE
51 MTXD
CRxD
x ao
CTxD
50 MRXD
y
CENA
49 MENA
i
uPD7804035GC
1050MD/DM-5090/DM-9090
8
1-3. Switch control table
INI SW1
AVref(0.8~1.0AVref)
0.7AVref(0.6~0.8AVref)
0.5AVref(0.4~0.8AVref)
0.3AVref(0.2~0.4AVref)
0.0AVref(0.0~0.2AVref)
INI SW2
High Overseas : No katakana character
Low Japan
1-4. Key voltage matrix
0.00V
~0.78V
KR0 POWER EJECT
KR1 STOP
KR2 DEL
KR3 SET
Q Q
3 6 7 1 3
(X25- ,IC28)
Titler & CD text
Sub - u-COM
ADDRESS
/DATA
BUS
ADDRESS
BUS
u163
.
ASTB
RD
WR
CS
2 9 9 4 2 8
Mecha. u-COM MODE
-
DMF-7002S (J type)
DM-9090
DM-5090
(AVref=Vdd)
: No cyber titler
: Katakana character
: Cyber titler
0.80V 1.61V 2.41V
~1.59V ~2.39V ~3.20V ~3.98V
PAUSE -
REC PLAY -
SPACE TT. REC.
/EDIT INPUT INPUT
LEVEL
ENTER CHR AUTO / METER REPEAT
/ REC MANUAL MODE
1 5 0 5 8 2 9 9 4
IC29,IC30
43
42
41
40
HM62256BLFP-8
39
T/-7T/-12T
38
37
[SRAM]
36
35
34
33
TC74HC373AF
m
32
31
co
30
29
44
23
22
21
9 9
3.22V 4.00V
~4.98V
FF -
FB TT
SEARCH
MONI TIME
-TOR DISP
2 8 9 9
7