Kenwood DPX 501 UY Service Manual

Page 11

DPX501/501U/501UY

DPX-MP2090U

MICROCOMPUTERS TERMINAL DESCRIPTION

Pin No. Pin Name l/O Application Processing Operation Description
H: Mute ON, L: Mute OFF
48 ZERO M | 0-bit mute detection
(No distinction of Lch/Rch)

49 DE-EMPHASIS O DAC de-emphasis control H: De-emphasis ON, L: De-emphasis OFF
50,51 NC Not used Opened output L fixed

Laser pick-up inner circumference detection
52 LIM SW | H: Inner circumference

SW signal input
53 DISC NORMAL 0 Media discrimination result output (Not used) H: Normal disc, L: Other disc
54 DISC H RW 0 Media discrimination result output (Not used) H: High reflecting RW disc, L: Other disc
55 DISC RW 0 Media discrimination result output (Not used) H: Normal RW disc, L: Other disc
56~59 TEST OUT4~f 0 Output for test Opened output L fixed
60 VCCZ - Power supply input Connects to BU3.3V
61 TEST OUTO 0 Output for test Opened output L fixed
62 V88 - Power supply input Connects to GND
63~66 NC - Not used Opened output L fixed
67 TEST |N3 | TEST |N3 Pull-down connection (L: Normal/H: During test)
68 MODEL SEL | Model determination L: DXM-6810W (X32683), H: DXM-6820W (X32-587)
69 E2P WRITE | TEST |N11E2P writing permission Pull-down connection (L: Normal/H: During writing)
70 UNIQ ID | TEST INO: Uniqe ID writing permission Pull-down connection (L: Normal/H: During writing)
71 ~73 NC - Not used Opened output L fixed
74 SEARCH 0 Searching situation output H: During seaching, L: Normal
75,76 NC - Not used Opened output L fixed
77 m 0 DSP reset control L: Reset, H: Normal

DSP command/parameter discrimination H: During parameter transmitting
78 DSP A0 0

signal output L: During command transmitting
79 DA EMPHASIS l DSP DA emphasis input H: emphasis ON, L: emphasis OFF
80 ROM EMPHASIS | Decoder ROM emphasis input H: emphasis ON, L: emphasis OFF
81 m 0 Data output status L: During data output muting, H: During data output
82 m 0 Decoder reset control L: Reset, H: Nornal
83 NC - Not used Opened output L fixed
84 SREO O Decoder SREQ signal output
85 BREQ | Decoder BREQ signal input
86~93 NC - Not used Opened output L fixed
94 AVSS - Analog power supply input Connects to GND
95 NC - Not used Opened output L fixed
96 VREF - Reference voltage input Not used: Connects to GND
97 AVCC - Analog power supply input Connects to BU3.3V
98~100 NC - Not used Opened output L fixed

11

Page 29

DPX501/501U/501UY
DPX-MP2090U

TEE: L
12.?
:25 12 E )mpm 0:51 WW
$3 5 F
{:5
It; .285
5
3H RE W WW
g 3% L
_ _ _ s W
, , , s 3% 1 vv
W W 2 u» a 3 saw; m 5n.
a 2 m l 7 a ,5. .usfiz: a
D €331 NW 3 a e
ix Ex 1 w
xwmmfim 9 C w
W
xx. NW 02 WW w
E L
)5
mm ,2
we:
a
fig . m :3 i
as 3 WW
as m :7
e . 33 5
x: s w 558) a . . me.
my gamma size
1 5: 09.505 Emw mm]
x3, 5 WW WW 523.: 37
ET comm 50 WW. m W vv T mmmmogm
22:. m 5H. u M t
as w WW m W W F m a W n
gt w r W m m E m W A mm
= v y s
5:. W 0 WWW WW W mmmmm
W W m i z z z a
a: n ..
1 x z
m ._ w m u WK a x
5 Wm, . m m Wt mz w m
5 ma x a t m w
.5 m M m m a
um aasm 1:. wmmmmz nag
mmnm a NEVA :4 u:
LMR a f I\
. $3 a
I II.I.I.IIIII. mufiu
m 7 IGI
32.9 6
30 m m x: m.: x: m
S W 2 a; o _| I I I I
w 5 m a m m 83 a
w Hm 3. v a a 4 . x _
W a 2m W W m K £2 w
W E 3 5 a NE _W
O A t ozuoj,
W m a a :E
5., a K r
7 I at MW o
m x: as 3% 2 >ng
2:
can I?
mo . . 9. 3E 3,: ® 5;;
1 N33: Wfi W 312 e: t e:
mi 3 5 s is ,8 5 ee 5 e:
z: YII I 5 SE a E
NEE V 5 Eng m
a, W 3, xm
a II?
NE A 1% WE NE ® is)
ISI? 3 £8
3 of SE. 721nm)
was
8,
5 a a a I?
W W W W é a; 23 ® 8E)
II
n n n a 2x ta 5, WE |®a§
w 0mm wane 53.1mm want
5 5., ea
25 BE slam 1mIl¥Iml© WEE)
1 BE gap
_ , 505 a? 2:29 gs , 2 an:

29

X34-415x-xx (2/3)

measurements shall be carried out (exposed parts are acceptably insulated trom the supply circuit) before

A Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance
the appliance is returned to the customer.