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Circuit Description - Kenwood MDX-G3 Service Manual

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1. Initializing
1-1 Initialization Method
• While pressing the [POWER] key, turn the AC on.
1-2 Initialization Operation
• During the initial operation, the display shows "INITIAL-
IZE "and after that it will be retuned to standby condi-
tion.
• If any mechanisms error occurred, the error indication
is displayed as "ERR" on the display.
1-3 Mechanism Initialization
1 CD Mechanism
• If a mechanism error occurred, the error indication is
displayed as "C ERR" on the display.
2 Deck Mechanism
• If a mechanism error occurred, the error indication is
displayed as "T ERR" on the display.
3 MD Mechanism
• If a mechanism error occurred, the error indication is
displayed as "M ERR" on the display.
• The disc will be unloaded from MD mechanism auto-
matically, if a disc is its in.
4. Microprocessor : MN101C49KLA(X09,IC11)
TE
4-1 Microprocessor Periphery Block Diagram
L 13942296513
DOT DRIVER
(M66004-001FPG)
X09,ED501
Vaccume Fluorescent
Display (HNA-16MM30T)
X09,IC22
DSP IC
(MN662748RPMFA)
www
CD MECHA
(KSM213CDM)
.

CIRCUIT DESCRIPTION

X28,IC1
DECK SYSTEM IC
6
4
51
6
3
x
ao
y
i
2
KEY
KEY1,2
8
2. Tuner Destination
Destin-
Set
Band
ation
M
E1
FM
M
E1
AM
3. Tuner Preset Frequency
P.CH Band
1
FM
2
FM
3
FM
4
FM
5
FM
6
FM
7
FM
8
FM
9
AM
10
AM
11
AM
12
AM
13
FM
14
AM
15
FM
Q Q
3
6 7
1 3
MD MECHA
X09,IC21
MN101C49KLA
u163
.
2
REMOTE
ENCODER
X09,A501
X09,S517
MDX-G3
2 9
9 4
2 8
Receiving
Channel
Frequecy Range
Space
87.5MHz 108.0MHz
50kHz
531kHz 1602kHz
9kHz
Frequency
P.CH Band
98.30MHz
16
FM
87.50MHz
17
FM
108.00MHz
18
FM
89.10MHz
19
AM
90.00MHz
20
FM
87.50MHz
21
AM
87.50MHz
22
FM
87.50MHz
23
FM
1602kHz
24
FM
999kHz
25
FM
630kHz
26
FM
1440kHz
27
FM
106.0MHz
28
FM
531kHz
29
FM
87.50MHz
30
AM
1 5
0 5
8
2 9
9 4
MDM-07
3
DECK MECHA.
(ADR-2176TR3)
5
X09,IC1
SYSTEM IC
2
(M61510FP)
X09,IC32
3
PLL IC
(LC72131)
3
m
co
9 9
IF
RF
+10.7MHz
25kHz
+450kHz
9kHz
Frequency
98.00MHz
98.50MHz
87.50MHz
990kHz
97.70MHz
531kHz
87.50MHz
87.50MHz
87.50MHz
87.50MHz
87.50MHz
87.50MHz
87.50MHz
108.0MHz
945kHz
2 8
9 9
5

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