The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the unit is defective.
Only major semiconductors are shown, general semiconductors etc. are omitted to list.
主な半導体を記載しています。汎用の半導体は記載を省略しています。
1. IC’s
MB90F352C (IC300)
TU-1800DAB
5
MB90F352C Terminal Function
Pin No.Pin NameI/OFunction
1AvssVss
2AVRHVcc
3P62/AN2/PPG4(5)Ikey1
4P63/AN3/PPG6(7)Ikey2
5P64/AN4/PPG8(9)Iencoder_a
6P65/AN5/PPGA(B)Iencoder_b
7P66/AN6/PPGC(D)OFLT_RESET
8P67/AN7/PPGE(F)OFLT_SELECT
9P50/AN8/SIN2OFLT_CLOCK
10P51/AN9/SOT2OFLT_DATA
11P52/AN10/SCK2ORDI_SELECT
12P53/AN11/TIN3O
13P54/AN12/TOT3OLED_STANDBY
14P55/AN13OLED_STEREO
15P56/AN14OLED_SECONDARY
16P42/IN6/RX1/INT9ROLED_TUNED
17P43/INT7/TX1OLED_RDS
18VssGND
19P40/X0A
20P41/X1A
21MD2MICOM UPGRADE
22MD1MICOM UPGRADE
23MD0MICOM UPGRADE
24P00/AD00/INT8ODAB_I2C_CLOCK
25P01/AD01/INT9ODAB_I2C_DATA
26P02/AD02/INT10IAK4103_DATA_IN
27P03/AD03/INT11OAK4103_CLOCK
28P04/AD04/INT12OAK4103_DATA_OUT
29P05/AD05/INT13OAK4103_SELECT
30P06/AD06/INT14IPOWER_DOWN
31P07/AD07/INT15IREMOCON
32P10/AD08/TIN1OPOWER_RELAY
33P11/AD09/TOT1OMAIN_MUTE
34P12/AD10/SIN3/INT11ROUPGRADE_RX
35P13/AD1A/SOT3OUPGRADE_TX
36P14/AD12/SCK3OP OWER_DAB
37P15/AD13O
38P16/AD14OEEPROM_DATA
39P17/AD15OEEPROM_CLOCK
40P20/A 16/PPG9(8)ODIT_RESET
41P21/A17/PP GB(A)OFUNCTION_RELAY
42P22/A 18/PPGD?ODAC_RESE T
43P23/A 19/PPGF(E)IDAC_MUTE_DETECT_R
44P24/A 20/IN0IDAC_MUTE_DETECT_L
45RST
46X14MHz
47X04MHz
48Vss
49Vcc
50C0.1UF/CERAMIC
51P25/A21/IN1/ADTGODAC_MUTE
52P44/F RCK0O
53P45/F RCK1O
54P30/ALE/IN4ODAB_ON
55P31/RD /IN5IRDS_DATA
56P32/WRL/WR/INT10RIRDS_CLOCK
57P33/WRHOPLL_CE
58P34/HRQ/OUT4OPLL_DATA_OUT(PLL DATA TRANS )
59P35/HAK/OUT5OPLL_CLOCK
60P36/RD Y/OUT6IPLL_DATA_IN(IF READ)
61P37/CLK/OUT7OTUNER_MUT E
62P60/A N0ITUNER_STEREO
63P61/A N1ITUNER_TUNED
64AvccVCC
TU-1800DAB
6
AK4103A (IC304)
K
I
O
TU-1800DAB
TRANS
PDN
MCLK
SDTI
BICK
LRCK7
FS0/CSN8
FS2/CCLK
FS3/CDTO11
C112
AK4103A BLOCK DIAGRAM
1V1
2
3
4
5
6
9FS1/CDTI
10
Top
View
DIF2
DIF1
24
23
22
21
20
19
18
17
16
15
14
13
DIF0
CKS1
U1
DIF2
DIF1
DIF0
TXP
TXN
VSS
VDD
CKS1
CKS0
BLS
ANS
CKS0
MCLK
BLS
TRANS
VSS
VDD
BICK
LRCK
SDTI
C1
U1
V1
FS0
FS1
FS2
FS3
Audio Serial
Interface
MUX
Register
Prescaler
Biphase
Encoder
CRCC Generator
Host Serial
Interface
TXP
TXN
RS422 Line Driver
ANS
CSN
7
CCL
CDT
CDT
PDN
AK4103A TERMINAL FUNCTION
No.Pin NameI/ODescription
1V1IValidity Bit Input Pin
2TRANSIAudio Routing Mode (Transparent Mode) Pin at Synchronous mode
3PDNIPower Down & Reset Pin(Pull-up Pin)
4MCLKIMaster Clock Input Pin
5SDTIIAudio Serial Data Input Pin
6BICKI/OAudio Serial Data Clock Input/Output Pin
7LRCKI/OInput/Output Channel Clock Pin
FS0ISampling Frequency Select 0 Pin at Synchronous mode (Pull-down Pin)
8
CSNIHost Interface Chip Select Pin at Asynchronous mode (Pull-down Pin)
AKMODEIAK4112B Mode Pin at Audio routing mode(Pull-down Pin)
FS1ISampling Frequency Select 1 Pin at Synchronous mode (Pull-down Pin)9
CDTIIHost Interface Data Input Pin at Asynchronous mode(Pull-down Pin)
FS2ISampling Frequency Select 2 Pin at Synchronous mode (Pull-down Pin)10
CCLKIHost Interface Bit Clock Input Pin at Asynchronous mode (Pull-down Pin)
FS3ISampling Frequency Select 3 Pin at Synchronous mode (Pull-down Pin)11
CDTOOHost Interface Data Output Pin at Asynchronous mode (Pull-down Pin)
12C1IChannel Status Bit Input Pin
13ANSIAsynchronous/Synchronous Mode Select Pin(Pull-up Pin)
15CKS0IClock Mode Select 0 Pin(Pull-up Pin)
16CKS1IClock Mode Select 1 Pin(Pull-down Pin)
17VDD18VSS-Ground Pin, 0V
19TXNONegative Differential Output Pin
20TXPOPositive Differential Output Pin
21DIF0IAudio Serial Interface Select 0 Pin(Pull-down Pin)
22DIF1IAudio Serial Interface Select 1 Pin(Pull-down Pin)
23DIF2IAudio Serial Interface Select 2 Pin(Pull-down Pin)
24U1IUser Data Bit Input Pin for Channel 1(Pull-down Pin)
Notes:
1. Internal pull-up and pull-down resistors are connected on-chip. The value of the resistors is 43kΩ(typ).
2. All input pins except internal pull-down/pull-up pins should not be left floating.
TU-1800DAB
0: Normal mode, 1: Audio routing mode (transparent mode)
When “L”, the AK4103A is powered-down, TXP/N pins are “L” and the
control registers are reset to default values.
Serial Clock for SDTI pin which can be configured as an output based on
the DIF2-0 inputs.
Indicates left or right channel, and can be configured as an output based on
the DIF2-0 inputs.
0: Non-AKM receivers mode, 1: AK4112B mode
0: Asynchronous mode, 1: Synchronous mode
In normal mode, the channel status block output is “H” for the first four
bytes. In audio routing mode, the pin is configured as an input. When PDN
pin = “L”, BLS pin goes “H” at Normal mode.
Power Supply Pin, 4.75V∼5.25V
8
BU1924F (IC306)
MUX
(4)
270p
120k
(3)
Vref
2.2 F
VDD1
(5)
1Analog
Power supply
(6)
SS1
V
100k
100k
anti-aliasing
filter
8th Switched
capacitor filter
(7)(8)
SS3
V
560p
CMP
comparator
(16)
TU-1800DAB
RCLK
QUAL
(1)
PLL
Z
Z
1
RCLK
QUAL
57kH
RDS/ARI
XO
33pF
3
(N.C.)
2
RDATA
Reference
clock
VDD2
2
V
SS2
(12)
Digital
Power supply
(11)
(13)(14)(10)
XI
4.332MH
33pF
3
1
PLL
1187.5Hz
1
:VDD1 and VDD2 are separated within the IC.
2
:HaveVDD2 (digital power supply) of a sufficiently low impedance.
3
: Match the capacitor constants with the crystal manufacturer.