Kenwood 1050MD Service Manual page 7

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