Kenwood KTCHR-100 Service manual
HD RADIO TUNER
KTC-HR100
SERVICE MANUAL
Metallic cabinet
(A01-2830-02)
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© 2003-9 PRINTED IN JAPAN
B53-0094-00 (N) 1424
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Cord with plug
(E30-4291-05)
Mounting hardware
(J21-3801-04)
A
N
T
Cord with plug
(E30-4953-05)
Magic tape
(H30-0051-05)
Screw set
(N99-1623-05)
CAUTION (Repair of PR OCESSOR UNIT)
You can not repair IC1 (TMSDRI200CGLZ5).
If you can repair those parts please change to PROCESSOR UNIT (X32-5510-10)
KTC-HR100
POWER SUPPLY
CN1
CN2
ANTENNA
(OPTION)
(X14-9310-10)
BLOCK DIAGRAM
3.3V DSP
(+3.3V)
2.5V FPGA
(+2.5V)
1.25V DSP
(+1.25V)
3.3V 7724
(+3.3V)
RECEIVER
SIGNAL
CONTROL
CLOCK
(X32-5510-10)
X1
43.20MHz
IC7 IC2
(ANALOG)
(DIGITAL)
AUDIO
IF OUT
IF OUT
IC4
SDRAM
IC1
DSP
FPGA
I2C
CN2CN1 CN5
CN3CN4
to EXTERNAL UNIT
IC6
FLASH ROM
A1
70.56MHzDEMODULATOR
A1
F/E
IC15
EEPROM
X1
20.00MHz
CN6
to WRITER
CF1,3
FILTERS &
SWITCH
IC11
u-COM
UART
CN2
to HOST PC
POWER SUPPLY (X14-9310-10)
IC1
REGULATOR
IC6
DCDCCONVERTER
IC17
REGULATOR
IC14
REGULATOR
BU
J2
to H/U
Q8,L2,3
IC12
REGULATOR
IF OUT(ANALOG)
IF OUT(DIGITAL)
I2C
IC9
REGULATOR
IC5
J4
to CONT
AUDIO
IC2
AMP
J2
to H/U
(5L BUS) (5L BUS)
+8V
+3.3V
+2.5V
+1.25V
+8.5V
+5V
BU5V
SW
IC7
BUFFER
J1 J3
IC3,4
AMP
to CD-CHRCA
2
COMPONENTS DESCRIPTION
● DIGITAL TUNER UNIT (X14-9310-10)
Ref. No. Application/Function Operation/Condition/Compatibility
IC1 8V regulator Power supply for audio system
IC2 Analog Switch Audio Switch
IC3,4 Op-amp Audio amp 2 for CD-CH signal
IC5 Op-amp Audio amp 2 for demodulated signal
IC6 DC/DC converter control Power supply for 3.3,2.5V
IC7 Op-amp Buffer amp for audio signal
IC8 Op-amp Convert for audio bias circuit
IC9 1.25V regulator Power supply for IDM
IC11 µ-com IC12 5V regulator Power supply for A1 (tuner module)
IC13 Reset IC IC14 5V regulator Power supply for BU 5V
IC15 1kbit EEPROM Back-up data memory
IC16 Dual 2 input OR GATE IC17 8.5V regulator Power supply for A1 (tuner module)
IC18 Op-amp Comparator for voltage detect
Q1 Mute For right mute
Q2,3 SW For main power supply SW
Q4 Mute For left mute
Q5 SW For mute on : mute
Q6,7 SW For audio source switch
Q8 DC/DC converter For 3.3,2.5V power supply
Q10 SW For B.U detect on : detect
Q11 SW For B.U detect on : no-detect
Q12 Inverter For B.U detect mute
Q14 SW For 5L CH-CON signal
Q16 SW For reset
Q17 SW For CD-CH reset
Q18 Amplifier IF amp 2
Q19 Amplifier Signal Amp 2 for AM-IF signal (narrow band)
Q20 Inverter For AM filter
Q21 Inverter For FM filter
Q22 Amplifier Signal Amp for FM-IF signal (wide band)
Q23 Amplifier Signal Amp for AM-IF signal (wide band)
Q24 Amplifier Signal Amp for FM-IF signal (narrow band)
Q25 Amplifier Signal Amp 1 for AM-IF signal (narrow band)
Q26 SW For FM filter
Q27 5v to/from 3.3v level converter For I2C data
Q28 5v to 3.3v level converter For I2C clock
Q29 Amplifier IF amp 1
Q33 SW For AM filter
Q35 SW For B.U detect mute on : mute
Q36 Level converter For Blend signal
Q37 SW For tuner I2C SCL signal
KTC-HR100
3
KTC-HR100
COMPONENTS DESCRIPTION
Ref. No. Application/Function Operation/Condition/Compatibility
Q38 SW For tuner I2C SDA signal
Q39 SW For DC-DC controller CS signal
D1 Diode Protect for a wrong connection
D2,4,6,17,20,21 Zenner diode Protect for irregularly voltage input
D3,5 Diode Protect for irregularly voltage input
D7 Diode Divider for left and right mute circuit
D8 Rectifier diode For controller voltage
D9,10 OR gate For mute
D11 Zenner diode Protect for irregularly voltage input
D13 OR gate For mute
D14 Zenner diode Reference voltage for audio bias voltage
D15,16 Schottly barrier diode For DC/DC converter
D18,19 Diode Protect for B.U voltage detect circuit
D22,23 Zenner diode For B.U voltage detect
D25 Diode Protect for a wrong voltage phenomenon
D26,27,29,30 Zenner diode Protect for irregularly voltage input
D28 Diode Reference voltage for regulator
D31 Rectifier diode For B.U 5V
D32 Diode Protect for irregularly voltage input
D34 OR gate For interrupt
D35 Diode Force for nomal voltage level
D37 OR gate For mute
D38 Diode For Controller Power
● PROCESSOR UNIT (X32-5510-10)
Ref. No. Application/Function Operation/Condition/Compatibility
IC1 DSP Digital demodulator, Audio decoder
IC2 FPGA For interface between IC5 and DSP
IC4 Flash Memory Program data for DSP and FPGA
IC6 64M SDRAM DSP work area
IC7 Demodulator AM FM Analog demodulator and Digital Audio interface
Q1 Voltage Regulator Core voltage supply for IC7 (+2.5V)
D1 LED
D2 Diode Voltage converter for RESET signal
D3 LED For DC+3.3 [V] power supply check
D4 LED This LED will blink continuously if the FPGA is configured correctly.
D6 Diode Voltage protection for DSP
This LED is toggled by the DSP software at a rate of approximately (200ms) to indicate
that it is operational.
4
KTC-HR100
MICROCOMPUTER’S TERMINAL DESCRIPTION
● MICROCOMPUTER : 70F3030BYGC1R9 (X14 : IC11)
Pin No. I/O
1ONC Not connect
2OSCK I2C clock output
3ORX UART input
4OTX UART output
5ONC Not connect
6-EVDD Power supply for port
7-EVSS Ground for port
8,9 O NC Not connect
10 O MUTE1 5L I/F to H/U
11 O REQC1 5L I/F to H/U
12 I DATA_I Data input from outside driver IC
13 O DATA_O Data output to outside driver IC
14 O LCD_CLK Clock output to outside driver IC
15 O LCD_CE Chip enable for outside driver IC
16 O LCD_RST Reset for outside driver IC
17 O NC Not connect
18 I IC/VPP For write program enable H : write mode, L : normal
19 O RELAY Audio source selection H : CD-CH, L : HD-RADIO
20 O A_MUTE Audio mute output H : normal, L : mute on
21 O PON_M Output for power on main H : power on, L : power off
22 O PON_A Output for power on audio H : power on, L : power off
23~30 O NC Not connect
31 I RESET Reset input H : not reset, L : reset
32 I - Un-use (pull down)
33 - NC Not connect
34 - - Capacitor connection for regulator stabilization
35 - X2 Resonator connection for main clock
36 I X1 Resonator connection for main clock
37 - VSS Ground
38 - VDD Power supply
39~54 O NC Not connect
55 - BVDD Power supply for BUS interface
56 - BVSS Ground for BUS interface
57 O TU_I2C_SW Data output for tuner I2C on / off switching L : off, H : on
58 I BLEND Data input for digital / analog switching L : analog, H : digital
59 O 7724_BLEND Data output for digital / analog switching L : analog, H : digital
60 O IDM_RESET Reset for IDM L : reset, H : normal
61 O FM_ON Output for FM filter power control L : filter off, H : filter on
62 O AM_ON Output for AM filter power control L : filter off, H : filter on
Pin Name
Function Processing Operation Description
5
KTC-HR100
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. I/O
63~67 O NC Not connect
68 I MUTE2 Mute input from CD-CH
69 O REQH2 5L I/F to CD_CH
70 O CHCON2 5L I/F to CD_CH
71 - AVDD Analog power supply
72 - AVSS Analog ground
73 I AVREF Analog reference voltage
74 I AM/FM LEVEL Connected to antennna detection signal H : normal (detect), L : not detect
75~85 I - Un-use (pull down)
86 O NC Not connect
87 I BUP1 Back-up voltage detect H : not detect (ok), L : detect
88 I KEY_INT Request from outside driver IC
89 I CHCON1/STBY 5L I/F from H/U
90 I BUP2 Back-up voltage detect (high) H : detect, L : not detect (ok)
91 I REQC2 5L I/F from CD_CH
92 I REQH1 5L I/F from H/U
93 I REMO Data input from remote control
94 I DATAC2 5L I/F from CD_CH
95 O DATAH2 5L I/F to CD_CH
96 O HCLK2 5L I/F to CD_CH
97 I DATAH1 5L I/F from H/U
98 O DATAC1 5L I/F to H/U
99 I HCLK1 5L I/F from H/U
100 I SDA I2C data inout
Pin Name
Function Processing Operation Description
6
EDCBA
KTC-HR100
PC BOARD (COMPONENT SIDE VIEW)
PROCESSOR UNIT X32-5510-10 (J74-1553-02)
R95
C82
C100
C102
C10
C47
C46
AF
AF
C103
R34
C101
L1
R64
D4
R63
D3
D1
R20
R21
C12
R23
R66
R6
R62
C125
C13
126
C117
C107
C104
C106
C105
13
C109C110C111
C108
CN5
R11
W5
W6
W4
W3
R51
R5
C11
R33
R32
R31
A
IC1
A
C4
R4
W7
R35
R36
X1
C9
126
C8
R22
C7
C6
C5
L7
C115
C116
Q1
CP9
CP10
C84
C81
SG
D
L9
R27
R16
R17
R18
R19
C54
C94
R42
R43
W11
L5
C1
R44
R87
R88
C93
L6
R40
R89
C89
C87
R41
C126
C114
W12
C72
C74
C99
C124
C80
C97
C53
100
76
R68
R67
R71
CP13
C95
R69
75
1
C56
R46
C113
R100
CP12
CP2
CP7
R101
IC2
C86
R73
C127
C130
C129
C70
L10
C57
C128
CP11
R55
R52
R102
R53
C48
R47
R48
C121
R90
51
25
C65
R54
1
R1
R2
C2
L4
2
A1
1
4
C134
2
R56
C68
R57
C66
C64
3
R58
R60
R59
R61
R103
L3
D6
L2
X32-5510-10
IC Q Address
13A
23C
12C
3
50
26
C90
(FOIL SIDE VIEW)
PROCESSOR UNIT X32-5510-10 (J74-1553-02)
C52
R45
10
C49
10
2
2
C73
C71
C69
C67
C131
C75
C77
C78
C79
W10
C62
30
W9
C51
C63
R85
100
1
31
R97
IC6
1
R91
R77
CN1
1
9
C132
C55
R94
D2
CN2
1
9
IC7
C76
R96
R72
C133
C96
R98
81
80
51
50
R99
2548
R15
R14
R12
R13
R28
R29
R24
R30
R25
R26
24
R50
C83
C85
W2
L8
C98
C91
C112
C92
C88
R105
R104
C16
43 1
IC4
44 86
C21
C14
C43
C15
C31
C30
C29
C28
C27
R86
C32
C26
C33
C25
C44
C19
C34
C35
C36
C37
C38
C45
C20
C24
C18
R3
C40
C17
C42
C41
C22
C39
C118
C23
4
5
6
X32-5510-10
IC Address
45C
66B
75B
C3
7
Refer to the schematic diagram for the values of resistors and capacitors.
7
F G H I J
3
6
KTC-HR100
1
PC BOARD (COMPONENT SIDE VIEW)
DIGITAL TUNER UNIT X14-9310-10 (J74-1554-02)
81
CN6
C66
L2
G15IO
D22
R67
EB
Q10
SG
D
Q12
R77
CP1CP2
R78
C61
L19
C120
R30
75 51
76
C60
R42
R43
912
14
R66
IC11
1
R106
R110
R111
CN2
41
C4
R38
R33
R45
85
R35
13
R62
R55
R64
50
26100
25
IC18
1
5
34
R214
R25
C1
85
R61
Q17
R115
R112
1
IC13
LEVEL
C128
L1
P1
O
I
5
D18
C88
IC16
1
485
C87
D31
2
IC14
G
3
C81
C70
IC9
1
1
C30
89
D
P3
L3
IC6
Q3
16
C32
C123
S
G
C76
IC12
IC17
4
R26
5
6
J2
13
J3
R60
EB
342
5
IC1
C133
D35
C28
C84
R58
X1
R193
912
C57
14
C34
R65
C39
R177
R197
R37
C52
1
R53
R41
R54
R31
C27
D10
R34
8
5
8
C23
C44
R40
14
R23
C11
C7
C21
45
R44
C59
C46
5
C26
R1
R6
1
4
R36
1
D14
C119 C118
R11
4
IC3
IC8
R63
R59
R181
R47
C42
IC5
8
C48
R39
87
1
C36
IC2
1
C56
45
IC7
8
R7
1
R180
R17
R15
CN3
CN4
C20
C14
R18
910
12
910
12
CF2
L5
CF3
CF1
R104
R103
20
R105
C55
C9
L4
J1
7
8
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