Kenwood RC-2000 User manual

© 2001-2 PRINTED IN JAPAN
B51-8571-00 (N)697
MOBILE CONTROLLER
RC-2000
SERVICE MANUAL
Speaker assy
(T19-0116-05)
Control panel Spacer
(J30-0521-04) x 2
DC cord
(E30-3406-05)
Trunk cable
(E30-3407-05)
Trunk cable
(E30-3408-05)
Modular cable
(E30-3409-05)
Angle
(A13-0635-03)
CIRCUIT DESCRIPTION ............................ 2
SEMICONDUCTOR DATA ........................ 3
DESCRIPTION OF COMPONENTS .......... 4
TERMINAL FUNCTION ............................. 4
PARTS LIST ............................................... 5
EXPLODED VIEW...................................... 6
CONTENTS
PACKING ................................................... 7
PC BOARD VIEWS
DISPLAY UNIT (X54-3290-00) .............. 9
SCHEMATIC DIAGRAM .......................... 13
BLOCK DIAGRAM ................................... 15
SPECIFICATIONS ................. BACK COVER

2
RC-2000 CIRCUIT DESCRIPTION
Panel Section (LCD ASSY : B38-0829-05)
The panel section controls serial communications with
the main unit control section, the key input circuit, the dis-
play circuit, and the dimmer circuit through the microproces-
sor (IC4).
■Serial communications circuit
A buffer amp is inserted in order to protect the micropro-
cessor ports.
■Key, Volume input circuit
Circuits to operate the panel section keys are connected
to each microprocessor port. The PSW key is pulled up and
the other keys are pulled up with software within the micro-
processor. Rotary encoder operating circuits are connected
directly to the microprocessor. The control divides the
power supply voltage, reads the A/D port of the micropro-
cessor, and transfers that data to the main unit.
■Display circuit
Display section is a 188 x 54-dot full-dot matrix LCD con-
trolled by two LCD. As shown is Figure 1, the master IC
(IC2) side is connected to 22 common dots and 88 segment
dots and the slave IC (IC1) side is connected to 33 common
dots and 100 segment dots. The LCD drive voltage is ob-
tained by raising the power supply voltage (5V) within the IC.
■Dimmer circuit
The dimmer circuit switches the lamp brightness to one
of four levels or OFF (See table1). The current flowing to the
LEDs is varied by selecting resistors from R8 to R14.
Dimmer level DIM 0 DIM 1 DIM 2 DIM 3
1HLLL
2LHLL
3LLHL
4 LLLH
OFF L L L L
Table 1 Port logic
LCD
188 ×54 (dot)
Microprocessor
IC4
33
COM
22
COM
88
SEG 100 SEG
LCD
Driver
IC2
LCD
Driver
IC1
X54-329
9V
D30R42
D24D25R39 D26D27R40 D28D29R41
IC4
Microprocessor
DIM3 Q8
DIM2 Q7
DIM1
DIM0
Q6
Q5
Q3 R8
R10
R9
R12
R11
R14
R13 LCD ASSY
Q2
Q4
Fig. 1 Display circuit
Fig. 2 Dimmer circuit

3
RC-2000
SEMICONDUCTOR DATA
CPU : 30622M8759GP (Display Unit IC4)
Pin No. Port name I/O Function Active
level
1 KYCALL I [AT] key input L
2 KYVFO I [Q. IN] key input L
3 KYMR I [EASY] key input L
4 KYPM I [PM] key input L
5 KYMNU I [RIT] key input L
6 BYTE I Select 8-bit data bus (5C)
7 CNVSS I Select memory expansion mode
8 FUNC I [F1] key input L
9 KYF1 I [F2] key input L
10 RESET I Reset
11 XOUT O Clock output
12 VSS - GND
13 XIN I Clock input
14 VCC - Power input
15 NMI (I) Not used
16 INT2 I Interrupt from serial input port
17 INT1 I Encoder pulse 1 input
18 INT0 I Encoder pulse 2 input
19 KYF2 I [F3] key input L
20 KYF3 I [F4] key input L
21 NC I Not used (VCC)
22 NC I Not used (VCC)
23~26 DIM3~0 O Dimmer output
27 PSW O Power SW control output
28 BS O Beat shift output
29 NC I Not used (VCC)
30 NC I Not used (VCC)
31 KYF4 I [F5] key input L
32 KYF5 I [F6] key input L
33 TXD0 O Serial port for connecting to
TX-RX uint
34 RXD0 I Serial port for connecting to
TX-RX uint
Pin No. Port name I/O Function Active
level
35 NC I Not used (VCC)
36 NC I Not used (VCC)
37~41 NC I Not used
42 RD - Read signal
43 NC - Not used
44 WR - Write signal
45 LCDA0 O LCD address 0
46 LCDCD2 O LCD chip select 2
47 LCDCD1 O LCD chip select 1
48 CS0 - Flash ROM chip select signal
49 A19 - Not used (Open)
50~59 A18~9 - Address bus 18~9
60 VCC - Power input
61 A8 - Address bus 8
62 VSS - GND
63~70 A7~0 - Address bus 7~0
71~78 LCDD7~0 I/O LCD data bus 7~0
79~86 D7~0 - Data bus 7~0
87 LCDRD O LCD read terminal
88 LCDWR O LCD write terminal
89 LCDRES O LCD reset
90 POWER I [ ] key input L
(key interrupt)
91 B-AFVR I Sub band R AF VOL (A/D)
92 B-SQVR I Sub band R SQ VOL (A/D)
93 A-AFVR I Main band L AF VOL (A/D)
94 AVSS - Analog power input (GND)
95 A-SQVR I Main band L SQ VOL (A/D)
96 VREF - A/D reference voltage input
97 AVCC - Analog power input (5C)
98 MHz I [TUNING CONTROL] key input L
99 B_KEY I [SUB AF CONTROL] key input L
100 A_KEY I [MAIN AF CONTROL] key input L

4
RC-2000
DESCRIPTION OF COMPONENTS / TERMINAL FUNCTION
Display Unit (X54-3290-00)
Ref. No. Application/Function Operation/Condition/Compatibility
IC1 Serial transmission buffer
IC2 Serial transmission buffer
IC3 AVR with reset function
IC4 Control microcomputer
IC5 ROM
Q1 Power switch
Q2~4,6, Dimmer
7,9,10
D1 Reverse flow prevention
D2 Reset circuit
D3-23 Over-voltage prevention
(Surge elimination)
D24~30 Key illumination
Display Unit (X54-3290-00)
CN No. Pin No. Name Function
CN1 1 D7 LCD driver data
2 D6 LCD driver data
3 D5 LCD driver data
4 D4 LCD driver data
5 D3 LCD driver data
6 D2 LCD driver data
7 D1 LCD driver data
8 D0 LCD driver data
9 RD LCD driver RD
10 WR LCD driver WR
11 A0 LCD driver A0
12 GND GND
13 CS2 LCD driver chip select
14 CS1 LCD driver chip select
15 RES LCD driver reset
16 VDD LCD driver VDD
17 VL Illumination LED control
18 VL Illumination LED control
19 PB Illumination LED power
20 PB Illumination LED power
CN2 1 GND
CN3 2 VR power
3 switch
4 VR voltage
5 SQL voltage

RC-2000
PARTS LIST
5
*New Parts. indicates safety critical components.
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
L: Scandinavia K: USA P: Canada
Y: PX (Far East, Hawaii) T: England E: Europe
Y: AAFES (Europe) X: Australia M: Other Areas
RC-2000
DISPLAY UNIT (X54-3290-00)
New Desti-
parts nation
Ref. No. Address Parts No. Description
New Desti-
parts nation
Ref. No.
Address Parts No. Description
1 2D A13-0635-03 ANGLE (TS-2000 (X)/TS-B2000)
2 2A A62-0775-03 PANEL (PANEL)
3 1C A82-0040-01 REAR PANEL (PANEL)
52A✽B10-2628-02 FRONT GLASS (PANEL)
6 1B B38-0829-05 LCD ASSY (PANEL)
7 2D B42-7003-04 RATING LABEL (DC CORD)
8 2A B43-1222-04 BADGE (PANEL)
9 2G B46-0310-03
WARRANTY CARD (EUROPEAN COUNTRIES)
10 2G B46-0469-10 WARRANTY CARD (U.S.A. AND CANADA)
11 2G ✽B62-1292-00 INSTRUCTION MANUAL
12 1F ✽B72-1754-04 MODEL NAME PLATE
14 1D ✽E30-3406-05 DC CORD
15 2E ✽E30-3407-05 TRUNK CABLE (MIC)
16 2E ✽E30-3408-05 TRUNK CABLE (SP)
17 2E ✽E30-3409-05 MODULAR CABLE
18 1B E37-0835-05 FLAT CABLE (PANEL)
21 3F F05-2531-05 FUSE (BLADE) 25A/32V
23 1C G10-1257-04 FIBROUS SHEET (PANEL)
24 1C G11-2600-14 SHEET (PANEL)
25 2A G11-2611-04 SHEET (PANEL)
26 2B G11-2612-14 SHEET (PANEL)
27 2A G13-1753-04 CUSHION (PANEL)
28 1E G13-1757-04 CUSHION (BRACKET)
29 1B G13-1784-04 CUSHION (PANEL)
31 3E ✽H52-1596-02 ITEM CARTON CASE
33 1E J29-0663-03 BRACKET
34 3F J29-0664-13 BRACKET
35 1E J30-0521-04 SPACER (ANGLE)
36 1E J61-0307-05 BAND (MIC)
38 2A K29-5222-03 KNOB (PANEL)
39 2A K29-5223-03 KNOB (PANEL)
40 2A K29-5381-03 KNOB (PANEL)
41 2B ✽K29-9129-01 BUTTON KNOB (PANEL)
43 1E L79-1417-05 LINE FILTER (PANEL,SP)
44 1E L79-1419-05 LINE FILTER (MIC)
A 2A N14-0569-04 CIRCULAR NUT (PANEL)
B 1C N80-2010-45 PAN HEAD TAPTITE SCREW (PANEL)
46 1E N99-2014-05 SCREW SET (BRACKET)
47 1E ✽N99-2017-05 SCREW SET (SPEAKER ASSY,ANGLE)
48 1E N99-2024-05 SCREW SET (ANGLE)
50 1F ✽T19-0116-05 SPEAKER ASSY
D24-30 B30-2215-05 LED
C1 CK73GB1C104K CHIP C 0.10UF K
C2,3 CC73GCH1H101J CHIP C 100PF J
C4 C92-0512-05 CHIP-TAN 1.0UF 16WV
C5 CK73GB1C104K CHIP C 0.10UF K
C6 C92-0698-05 ELECTRO 47UF 16WV
RC-2000 C7,8 CK73GB1H102K CHIP C 1000PF K
C9,10 CC73GCH1H220J CHIP C 22PF J
C11 CK73GB1H103K CHIP C 0.010UF K
C12 CK73GB1H102K CHIP C 1000PF K
C13,14 CK73GB1H472K CHIP C 4700PF K
C15 CK73GB1H103K CHIP C 0.010UF K
C16 CK73GB1H102K CHIP C 1000PF K
C17-23 CK73GB1H103K CHIP C 0.010UF K
C24 CK73FB1C105K CHIP C 1.0UF K
C25 CK73GB1H472K CHIP C 4700PF K
CN1 E40-5852-05 FLAT CABLE CONNECTOR (20P)
CN2,3 E40-5392-05 PIN ASSY (5P)
CN4,5 E40-5409-05 PIN ASSY (5P)
J1 E58-0457-05 MODULAR JACK
L1-7 L92-0140-05 FERRITE CHIP
L9 L92-0140-05 FERRITE CHIP
X1 L77-1814-05 CRYSTAL RESONATOR (11.0592MHZ)
CP1-15 R90-0741-05 MULTIPLE RESISTOR 1K X2
R2 RK73GB1J473J CHIP R 47K J 1/16W
R3 RK73GB1J103J CHIP R 10K J 1/16W
R4 RK73GB1J331J CHIP R 330 J 1/16W
R5,6 RK73GB1J473J CHIP R 47K J 1/16W
R8 R92-0670-05 CHIP R 0 OHM
R9,10 RK73FB2A560J CHIP R 56 J 1/10W
R11,12 RK73FB2A181J CHIP R 180 J 1/10W
R13,14 RK73FB2A271J CHIP R 270 J 1/10W
R15 R92-1252-05 CHIP R 0 OHM
R17-22 RK73GB1J102J CHIP R 1.0K J 1/16W
R25 RK73GB1J103J CHIP R 10K J 1/16W
R27-29 RK73GB1J102J CHIP R 1.0K J 1/16W
R30-32 RK73GB1J473J CHIP R 47K J 1/16W
R33 RK73GB1J102J CHIP R 1.0K J 1/16W
R34-38 RK73GB1J473J CHIP R 47K J 1/16W
R39-41 RK73FB2A391J CHIP R 390 J 1/10W
R42 RK73FB2A471J CHIP R 470 J 1/10W
R43 R92-1252-05 CHIP R 0 OHM
R44 R92-0679-05 CHIP R 0 OHM
VR1,2 2B,2C R31-0629-05 VARIABLE RESISTOR 50K
S1-12 S70-0439-05 TACT SWITCH
D1 LFB01 DIODE
D2 MA2S111 DIODE
D3-23 DA221 DIODE
IC1,2 TC4S81F IC (SERIAL TRANSMISSION BUFFER)
IC3 L78LR05B-FA IC (AVR WITH RESET FUNCTION)
IC4 30622M8759GP IC (CONTROL MICROCOMPUTER)
IC5 AT29C020-90TI IC (ROM)
Q1 2SA1162(Y) TRANSISTOR
Q2-4 DTC143EKA DIGITAL TRANSISTOR
Q6,7 DTC143EKA DIGITAL TRANSISTOR
Q9,10 DTC143EKA DIGITAL TRANSISTOR
S13 1B W02-1978-05 ENCODER
DISPLAY UNIT (X54-3290-00)

6
RC-2000
1
2
ABC
Bx2
3
24
23
18
29
6
41
27
26
25
2
Ax2
A
40
39
38
5
8
X54 (C/3)
X54 (B/3)
Display unit
X54 (A/3)
S13
VR1 VR2
A : N14-0569-04
B : N80-2010-45
EXPLODED VIEW
Parts with the exploded numbers larger than 700 are not supplied.

7
RC-2000
DE
1
2
3
701 Packing fixture
33 Bracket
(J29-0663-03)
702 Protection bag
703 Protection bag
43
44
36 Band
(J61-0307-05)
47 46
48
35
17 Modular cable
(E30-3409-05) 16 Trunk cable
(E30-3408-05)
15 Trunk cable
(E30-3407-05)
31 Item carton case
(H52-1596-02)
1 Angle
(A13-0635-03)
14 DC cord
(E30-3406-05)
7 Rating label
(B42-7003-04)
28 Cushion
(G13-1757-04)
35 Spacer (J30-0521-04) x 2
43 Line filter (L79-1417-05) x 2
44 Line filter (L79-1419-05)
46 Screw set (N99-2014-05)
47 Screw set (N99-2017-05)
48 Screw set (N99-2024-05)
PACKING
Parts with the exploded numbers larger than 700 are not supplied.

8
RC-2000
FG
1
2
3
12 Model name plate
(B72-1754-04)
706 S/No. label
50 Speaker assy
(T19-0116-05)
707 Protection bag
708 Packing fixture
10 Warranty card
(B46-0469-10)
9 Warranty card
(B46-0310-03)
11 Instruction manual
(B62-1292-10)
34 Bracket
(J29-0664-13)
21 Fuse (25A)
(F05-2531-05)
PACKING
Parts with the exploded numbers larger than 700 are not supplied.

J
H
FD
BI
G
E
C
A
1
3
5
7
2
4
6
C14
IC4
1
25
75
51 2650
10076
L5
C5C1 IC3
1 2 4 5
3
IC2
1
3
5
4
C3
IC1 1
3
5
4
C2
L3
C4
C7 C8
C6
L1 L2
L4
L6
R5
R6
Q1
R3
D2
L7 C12
C11
R22
R21
R43
C9
C10
R15
R4
R2
R20
R18
R19
R17
D1
IC5
1
16
32 17
C15
C16
CN3
CN1
1
20
PB
PB
VL
VL
VDD
RES
CS1
CS2
GND
AO
WR
RD
D0
D1
D2
D3
D4
D5
D6
D7
CN2
CP1
CP10
CP11 CP12
CP13
CP14
CP15
CP2
CP3
CP4
CP5 CP6
CP7 CP8
CP9
C13
C23 L9
Q2
Q3
Q4
Q6 Q7 Q9
X1
Q10
R27
R28
R29
D10 D11
D12
D13
D14
D15 D16 D17 D18 D19 D20
D21 D22 D23
D3
D4
D5
D6
D7
D8
D9
C17
C18
C19
C20
C21C22
J1
TXD
RXD
GND
PB
R25
R30
R31 R32 R33
R34
R35
R38
C25
R44
C24
R36
R37
R9
R8
R41
R42
R40
R12 R10 R13 R14 R11
R39
VR1VR2
CN5 CN4
S10S9S8S7
S6
S12
S11
S4
S3 S5
S2 S1
D24 D25
D26
D27
D28
D29
X54-3290-00 (A / 3)
J72-0707-02
X54 (B / 3)
X54 (C / 3)
D30
S13
10
9
PC BOARD VIEWS RC-2000
2SA1162 DTC143EKA L78LR05B-FA DA221 TC4S81F 30622M8759GP AT29C020-90TI
DISPLAY UNIT (X54-3290-00) Component side view
Component side
Foil side

A C E G I
B D F H J
1
3
5
7
2
4
6
C14
IC4
1
25
75
51
26 50
100 76
L5
C5 C1
IC3
1245
3
IC2 1
3
5
4
C3
IC1
1
3
5
4
C2
L3
C4
C7 C8
C6
L1 L2
L4
L6
R5
R6
Q1 R3
D2
L7 C12
C11
R22
R21
R43
C9
C10
R15
R4
R2
R20
R18
R19
R17
D1
IC5
1
16
32 17
C15
C16
CN3
CN1
1
20
PB
PB
VL
VL
VDD
RES
CS1
CS2
GND
AO
WR
RD
D0
D1
D2
D3
D4
D5
D6
D7
CN2
CP1
CP10
CP11
CP12
CP13
CP14
CP15
CP2
CP3
CP4
CP5
CP6
CP7
CP8
CP9
C13
C23
L9
Q2
Q3
Q4
Q6 Q7 Q9
X1
Q10
R27
R28
R29
D10 D11
D12
D13
D14
D15 D16 D17 D18 D19 D20
D21 D22 D23
D3
D4
D5
D6
D7
D8
D9
C17
C18
C19
C20
C21C22
J1
TXD
RXD
GND
PB
R25
R30
R31 R32 R33
R34
R35
R38
C25
C24 R44
R36
R37
R9
R8
R41
R42
R40
R12 R10 R13 R14 R11
R39
VR1
VR2
CN5 CN4
S10 S9 S8 S7
S6
S12
S11
S4
S3
S5
S2
S1
D24 D25
D26
D27
D28
D29
X54-3290-00 (A / 3)
J72-0707-02
X54 (B / 3)
X54 (C / 3)
D30
S13
RC-2000 PC BOARD VIEWS
12
11
DISPLAY UNIT (X54-3290-00) Foil side view
Component side
Foil side

J
H
FD
BI
G
E
C
A
1
3
5
7
2
4
6
SCHEMATIC DIAGRAM RC-2000
14

15
RC-2000
BLOCK DIAGRAM

RC-2000
KENWOOD CORPORATION
14-6, Dogenzaka 1-chome, Shibuya-ku, Tokyo 150-8501, Japan
KENWOOD SERVICE CORPORATION
P.O. BOX 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745, U.S.A.
KENWOOD ELECTRONICS CANADA INC.
6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8
KENWOOD ELECTRONICS DEUTSCHLAND GMBH
Rembrücker Str. 15, 63150 Heusenstamm, Germany
KENWOOD ELECTRONICS BELGIUM N.V.
Mechelsesteenweg 418 B-1930 Zaventem, Belgium
KENWOOD ELECTRONICS FRANCE S.A.
13, Boulevard Ney, 75018 Paris, France
KENWOOD ELECTRONICS U.K. LIMITED
KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB United Kingdom
KENWOOD ELECTRONICS EUROPE B.V.
Amsterdamseweg 37, 1422 AC Uithoorn, The Netherlands
KENWOOD ELECTRONICS ITALIA S.p.A.
Via G. Sirtori, 7/9 20129 Milano, Italy
KENWOOD IBERICA S.A.
Bolivia, 239-08020 Barcelona, Spain
KENWOOD ELECTRONICS AUSTRALIA PTY. LTD.
(A.C.N. 001 499 074)
16 Giffnock Avenue, Centrecourt Estate, North Ryde, N.S.W. 2113 Australia
KENWOOD ELECTRONICS (HONG KONG) LTD.
Unit 3712-3724, Level 37, Tower one Metroplaza, 223 Hing Fong Road, Kwai Fong, N.T., Hong Kong
KENWOOD ELECTRONICS TECHNOLOGIES(S) PTE LTD.
Sales Marketing Division
1 Ang Mo Kio Street 63, Singapore 569110
SPECIFICATIONS
Control Panel
Usable temperature range .................................................... –20°C to +60°C (–4°F to +140°F)
Supply voltage ...................................................................... 9.5V DC ±0.5V
Current .................................................................................. Less than 200mA
Dimensions (W x H x D, Projections included) .................... 140 (5.5) x 60 (2.4) x 49.3 (2.0) mm (inch)
Weight .................................................................................. Approx. 180g (0.4 lbs)
External Speaker
Speaker impedance .............................................................. 4Ω±15%
Output audio level ................................................................ 85±2dB/W
Frequency response ............................................................. 300 to 9000Hz
Input power .......................................................................... 3W (Nominal), 5W (Maximum)
Dimensions (W x H x D) ....................................................... 113 (4.5) x 66 (2.6) x 58.5 (2.3) mm (inch)
Weight .................................................................................. Approx. 360g (0.79 lbs)