Kenwood KOSA-200 Service manual
EXTERNAL MEDIA CONTROLLER WITH RDS ENCODER
KOS-A200
SERVICE MANUAL
Metallic cabinet
(A01-4415-02): (K type)
(A01-4418-02): (E type)
T
O
5L
I/F
P
O
W
E
R
U
S
B
I/F
A
U
X
IN
2
A
U
X
L
IN
1
R
R
E
M
O
T
E
IN
A
N
T
IN
E
/O
N
N
U
A
T
© 2006-7 PRINTED IN JAPAN
B53-0448-00 (N) 825
DC cord (2.5m)
(E30-6596-05)
Mounting hardware
(J22-0517-04)
Cord with connector (1.5m)
(E30-6634-05)
SEMS
(N09-6427-05)
Screw set
(N99-1789-05)
Remote control sensor assy
(T95-0270-05)
Antenna adaptor
(E type only)
(T90-0523-05)
This product complies with the
Antenna adaptor
(E type only)
(T90-0578-05)
Remote controller assy (RC-537)
(A70-2078-05)
Size AA Battery
(Not Supplied)
Magic tape
(Not supplied)
This product uses Lead Free solder.
RoHS
directive for the European market.
2
1200mV
1200mV
1200mV
1200mV
190mV
64mVp-p
3.3Vp-p
LX BUS
AUX IN 1
J3
AMP
ISO
IC202
SELECTOR
IC204
IC201
AMP
ISO
AUX IN 2
J7
IC203
AMP
ISO
J2
BUFF MUTE
Q251,252
J6
MEMORY
USB
USB
USB
HOST
V BUS
IC25
IC951
U5V
IC951
U3.3V
U1.8V
IC20
NOR
FLASH ROM
SDRAM
(16.898MHz)
PLL
IC17
IC16
IC2
IC1
u-COM
IC15
DSP
CIRRUS
D/A
L.P.F.
IC13,18
IC27
E2PROM
CN1
ANT OUT
to H/U
to CAR ANT
ANT IN
CN2
SW
K1
GAIN
Q403,404
Q408
MODULATOR
IC401
FM
GAIN
R403-406
RDS ENCODER
C431-434
LEVEL SHIFT
3V 5V
L404
444,601
R431,443,
403
IC402,
AMP
MIX
IC404
BEEP
412
Q409-
LEVEL SHIFT
IC511,512
3V 5V
J4
IC601
SYSTEM u-COM
RESET IC
IC602
E2PROM
IC603
USB UNIT
NOT USED
NOT USED
PON
USB PON3V
USB PON5V
ACC DET
BU DET
ACC 5V
ACC DET
BU DET
ACC DET
BU DET
SW 5V
Q570
Q401
Q502
AROUND
AROUND
Q501
B.UP 5V
Q505
B.UP 3.3V
IC501
USB 1.8V
IC20
USB A5V
IC14
SW 20V
Q906
IC901
A8V
IC502,Q509
PON
Q907
USB PON3V
Q902
USB PON5V
Q901
Q510
PON
USB 3.3V
USB 5V
(500mA)
J1
DC-CN
REMOTE
SENSOR
ON/OFF SW
IC205
1200mV
1200mV
1200mV
(E30-6595-05)
(T95-0270-05)
A8V
A8V
A8V
B.UP
A8V
BU3.3V
U3.3V
U3.3V
U3V
U3.3V
6
8
A5V
U3.3V
BU3.3V
2
BU3.3V
B.UP
SW5V
1
2
BU5V
31
A8V
45
BU5V
4
1
1
REMO
PON DET
BU3.3V
BU3.3V
1
BU3.3V
2
4
2
1
SW5V
BU3.3V
U1.8V
A5V
BU5V
U3.3V
U5V
A8V
BU5V
ACC5V
GND
ACC
B.UP
ACC5V
A8V
U5V
U1.8V
U3.3V
1
KOS-A200
BLOCK DIAGRAM
KOS-A200
COMPONENTS DESCRIPTION
● MODULAR UNIT (X14-9790-10/2-71)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 USB Main µ-com
IC2 PLL (16.898MHz) For IC15
IC13 OPAMP Low Pass Filter
IC14 A5V Reg. For IC18
IC15 DSP For compression audio decoding
IC16 SDRAM For compression audio deployment
IC17 Flash ROM Decoder software storing
IC18 24 bit D/A converter
IC20 1.8V Reg. For IC15
IC25 USB Host Controller
IC26 Logic IC (NAND) The change of IC15, and IC16/IC17/IC25
IC28 Dual bus buffer The change of the clock supplied to IC16
IC201 ISO AMP Audio input isolation amplifier (5L)
IC202 ISO AMP Audio input isolation amplifier (AUX1/RCA)
IC203 ISO AMP Audio input isolation amplifier (AUX2/Mini Jack)
IC204 Switch OPAMP 4 inputs (USB, 5L, AUX1, AUX2), 1 output
IC205 OPAMP Buffer
IC401 FM-TX IC FM-Transmiter
IC402,403 Level shift 3.3V → 5V
IC404 OPAMP Mix Amp
IC501 BU3.3V Reg. For IC1, IC601
IC502 Audio8V Ref Power Supply Output 1.27V
IC511,512 Level shift 3.3V → 5V
IC601 System µ-com
IC602 Reset IC “L” when detection voltage goes below 3.0V or less
IC901 Switching Regulator Controller Power Supply for USB3.3V & USB 5V. CH1: USB3.3V, CH2: USB5V
IC951 Power control IC USB power control switches with over current detection and protection
Q16 Infinite zero detect SW When a base gose Lo, SW turns on
Q17 SW of “USB Hi-Side SW” When a base gose Lo, SW turns on
Q18 DAC MUTE SW When a base gose Hi, DAC MUTE turns on
Q250~252 MUTE 0 SW When Q250’s base goes Lo, MUTE 0 turns on
Q401,402 PLL+B AVR When Q402’s base goes Hi, AVR outputs 5V
Q403,404
Q405,406 For FM-TX PLL Composes PLL of FM-TX with Q405, 406 and their peripherals
Q407 RELAY SW When a base gose Hi, the output from IC401 is chosen
Q408 Buffer For RDS signals
Q409~412 BEEP LEVEL SW Switches BEEP VOLUME in five level
Q413 PLL MUTE SW When a base gose Hi, PLL MUTE turns off
Q501 B.U Detect SW When a base gose Hi, B.U voltage is detected
Switching FM-TX frequency polarization
Switches FM-TX freqency polarization in three level at Q403, 404 and their peripherals
3
KOS-A200
COMPONENTS DESCRIPTION
Ref. No. Application / Function Operation / Condition / Compatibility
Q502 ACC Detect SW When a base gose Hi, ACC voltage is detected
Q505,506 B.U.5V AVR While BU is applied, BU5V AVR outputs 5V
Q509,510 Audio8V AVR When Q510’s base goes Hi, A8V AVR outputs 8.0V
Q570~572 REMO.5V AVR When Q572’s base goes Lo, REMO.5V AVR outputs 5V
Q901 USB5V AVR SW When base goes Hi, USB5V AVR turns off
Q902 USB3.3V AVR SW When base goes Hi, USB3.3V AVR turns off
Q905~908 SW16V (Surge Protection) When Q907’s base goes Hi, SW16V outputs (BU–0.6)V
MICROCOMPUTER’S TERMINAL DESCRIPTION
● SYSTEM MICROCOMPUTER: 703260YGC306A (X14: IC601)
Pin No. Pin Name I/O Application
1AVREF0 - VDD
2AVSS - VSS Connect to VSS
3NC Not used Not used
4 RDS_DATA O RDS DATA output terminal
5AVREF1 - VDD Connect to VDD
6,7 NC Not used Output L fixed
8 FLMD0 - Terminal for writing FLASH
9 VDD - VDD Connect to VDD
10 REGC - 4.7µ
11 VSS - VSS Connect to VSS
12 X1 - 4.332MHz
13 X2 - 4.332MHz
14 RESET - RESET
15 XT1 - Not used Connect to VSS
16 XT2 - Not used OPEN
17,18 NC Not used Output L fixed
19 BU_DET I Momentary power down detection
Truth V alue
Table
Processing Operation Description
L: BU found
H: BU not found, at momentary power down
4
KOS-A200
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
20 NC Not used Output L fixed
21 LX_REQ_S I Communication request from slave unit
22 LX_DATA_S I Data from slave unit
23 LX_DATA_M O Data to slave unit
24 LX_CLK O LX BUS clock
25 NC Not used Output L fixed
26
27,28 NC Not used Output L fixed
29 LX_CON O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF
30 LX_REQ_M O Communication request to the slave unit
31 LX_MUTE I MUTE request from slave unit H: Mute ON, L: Mute OFF
32 LX_RST O Hardware-reset to slave unit OPEN: At RESET, L: Normally
33 EVSS - VSS Connect to VSS
34 EVDD - VDD Connect to VDD
35 USB_SDA I/O
36 USB_CLK I/O
37~42 NC Not used Output L fixed
43 ROM_SDA I/O
44 ROM_CLK O
45 LCD_CE O LCD driver control request terminal [Reserved]
46 BEEP O BEEP output PWM output
47 PRIM_REMO I Attached remote control signal input Detect pulse width
48 LCD_BLK O LCD data blanking output (RESET) [Reserved]
49 ROM_DET I E2PROM writing-in request L: Writing-in
50 LCD_DI I LCD data input terminal [Reserved] Output L fixed
51 LCD_DO O LCD data output terminal [Reserved] Output L fixed
52 LCD_CLK O LCD clock output terminal [Reserved] Output L fixed
53 NC Not used Output L fixed
54 NC E-VOL data output terminal Output L fixed
55 NC E-VOL clock output terminal Output L fixed
56
57 KEY_REQ I Communication request from LCD driver
58 ACC_DET I ACC power supply detection L: ACC found, H: ACC not found
59,60 NC O SW-Reg frequency switching u [Reserved] Refer to the truth value table
61 PLL_CE O
TEST MODE_DET
POWER_ON_DET
I TEST mode detection H: Normal, L: TEST MODE
For communication with USB system
I2C data input/output terminal
For communication with USB system
I2C clock output terminal
E2PROM I2C data input/output terminal
for ROM correction
E2PROM I2C clock output terminal for ROM correction
IPower ON/OFF switching
Chip-enable output terminal for PLL communication
Truth V alue
Table
Processing Operation Description
H: Power ON (Detect 30msec chartering)
L: Power OFF (Detect 1sec chartering)
[Reserved] Connect to LCD_DI, Output L fixed
H: Data found, L: Data not found
5
KOS-A200
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
62 PLL_DO O Data output terminal for PLL communication
63 PLL_CLK O Clock terminal for PLL communication
64 PLL_MUTE I/O MUTE terminal for PLL communication
65~68 NC Not used Output L fixed
69 BVSS - VSS
70 BVDD - VDD
71 GAIN_0 O Modulation output switching q Refer to the truth value table
72 GAIN_1 O Modulation output switching q Refer to the truth value table
73 GAIN_2 O Modulation output switching q Refer to the truth value table
74 SEP_ATT O “Hi” when GAIN_2 output found q Refer to the truth value table
75 RELAY O Antenna relay control output terminal
76 FLMD1 Terminal for writing FLASH
77,78 NC Not used Output L fixed
79 SRC_SW_0 O Input source switching w Refer to the truth value table
80 SRC_SW_1 O Input source switching w Refer to the truth value table
81,82 NC Not used Output L fixed
83 TYPE_0 I Destination switching r Refer to the truth value table
84 TYPE_1 I Destination switching r Refer to the truth value table
85 BEEP_LEVEL_3 I/O BEEP level switching e Refer to the truth value table
86 BEEP_LEVEL_4 I/O BEEP level switching e Refer to the truth value table
87 MUTE_0 I/O MUTE terminal Normal MUTE, Hi-z: Mute OFF, L: Mute ON
88 NC Not used Output L fixed
89 BEEP_LEVEL_1 I/O BEEP level switching e Refer to the truth value table
90 BEEP_LEVEL_2 I/O BEEP level switching e Refer to the truth value table
91,92 NC O Not used Output L fixed
93 PON I/O Power supply control w
94 USB_PON5 I/O Power supply control terminal for USB 5V w Refer to the truth value table, ON: Hi-z
95 USB_PON3 I/O Power supply control terminal for USB 3.3V w Refer to the truth value table, ON: Hi-z
96 PLL_PON I/O PLL power supply w
97 NC Extra terminal for USB Output L fixed
98 USB_MUTE_L I USB MUTE (Lch) request terminal
99 USB_MRST O Mechanism µ-com RST terminal H: Normal, L: RESET
100 USB_MSTOP O Mechanism µ-com stop terminal
Truth V alue
Table
Processing Operation Description
MUTE when SW is OFF.
Hi-z: Mute ON, H: Mute OFF
H: Power ON (MOD ANT)
L: Power OFF (CAR ANT)
H: Power ON, Hi-z: At power OFF and
momentary power down detection
Refer to the truth value table
POWER ON: H, POWER OFF: Hi-z
H: Normal
L: Lch mute request (Valid only when USB)
H: Mechanism µ-com in operation
L: Mechanism µ-com stop
6
KOS-A200
MICROCOMPUTER’S TERMINAL DESCRIPTION
Truth value table
q GAIN switching output
GAIN output according to the level as shown in the table below.
LEVEL GAIN0 GAIN1 GAIN2 SEP-ATT Low
1HHLL↑
2HLHL↓
3HLLLHigh
w Input switching and power supply
Input source SRC_SW_0 SRC_SW_1 PON PLL_PON USB_PON3 USB_PON5
AUX1 L L HHHH
AUX2 H L HHHH
USB L H H H Hi-z Hi-z
LX-BUS H H H H H H
While STANDBY L H H H H H
Re-send PLL (MONO) data
e BEEP level
BEEP_L1 BEEP_L2 BEEP_L3 BEEP_L4
LV1Lower Hi-z Hi-z Hi-z H
LV2 Hi-z Hi-z H Hi-z
LV3 Hi-z H Hi-z Hi-z Default setting
LV4HHi-z Hi-z Hi-z
LV5 Louder Hi-z Hi-z Hi-z Hi-z
r Destination setting
TYPE_0 TYPE_1
KLL
EHL
u Frequency transition
K-Type
FSEL1 FSEL2 Reception frequency
LL530~690, All status excluding AM source
HL700~1020, 1390~1530
LH1540~1700
HH1030~1380
E-Type
FSEL1 FSEL2 Reception frequency
LL522~675, All status excluding MW
HL684~1017, 1386~1530
LH1539~1629
HH1026~1377
7
KOS-A200
MICROCOMPUTER’S TERMINAL DESCRIPTION
● USB MAIN MICROCOMPUTER: M30620MCPA28GP (X14: IC1)
Pin No. Pin Name I/O Application Processing Operation Description
1~5 NC O Not used Open output L fixed
6 BYTE I External data bus switching input GND connection, fixed to “L” at single chip mode
7 CNVSS I Processor mode switching
8 _MUTE O Audio MUTE control L: MUTE ON, H: MUTE OFF
9NCONot used Open output L fixed
10 _RESET I Reset detection L: RESET, H: NORMAL
11 XOUT O Main clock output X’tal connection
12 VSS - Power supply input GND connection
13 XIN I Main clock input X'tal connection
14 VCC1 - Power supply input BU3.3V connection
15 _NMI I _NMI interrupt input Input H (PullUp) fixed
16 _MSTOP I Standby return interrupt L: STOP, H: STOP cancel (Hi edge)
17 NC O Not used Open output L fixed
18 DSP INT I (DSP) Interruption signal input H: Interruption (Hi edge)
19~22 NC O Not used Open output L fixed
23 E2P SCL I/O (E2P) I2C clock output
24 E2P SDA I/O (E2P) I2C data input/output
25,26 NC O Not used Open output L fixed
27 SCL I (System µ-com) I2C clock input
28 SDA I/O (System µ-com) I2C data input/output
29 DSP TXD O (DSP) Data output for serial data Not used
30 DSP RXD I (DSP) Data input for serial data Not used
31 DSP CLK O (DSP) Clock output for serial data Not used
32
33 CS SDATA O (Decoder) Data output for serial data Not used
34 CS BDATA I (Decoder) Data input for serial data Not used
35 CS CLK O (Decoder) Clock output for serial data Not used
36~38 NC O Not used Open output L fixed
39 _EPM O Not used (FLASH: _EPM) Open output L fixed
40 PON D3.3 O D3.3V POWER ON control terminal H: POW ON, L: POW OFF
41 PON A5 O A5.0V POWER ON control terminal H: POW ON, L: POW OFF
42 PON CS1 O CS7410 series 3.3V POWER ON control terminal H: POW ON, L: POW OFF
43 PON CS2 O CS7410 series 1.8V POWER ON control terminal H: POW ON, L: POW OFF
44 _CE O Not used (FLASH: _CE) Open output L fixed
45 _DRV MUTE O Driver MUTE L: STOP, H: MUTE OFF
46,47 NC O Not used Open output L fixed
48 ZERO_M I 0bit MUTE detection H: MUTE ON, L: MUTE OFF
49 DE-EMPHASIS O (DAC) De-emphasis control H: De-emphasis ON, L: OFF
DSP STB (BUSY)
O (DSP) Data strobe signal output (FLASH: BUSY) Not used
L: PullDown connection, single chip mode
(H: Micro processor mode)
8
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