Kenwood EZ700SR User manual

© 2005-1 PRINTED IN JAPAN
B53-0237-00 (N)609
CD RECEIVER
Ez700SR/Ez900HDS
SERVICE MANUAL
Size AA battery
(Not supplied)
Plastic cabinet assy
(A02-2735-03) Lever (D10-4589-04) x2
Screw set
(N99-1757-05)
Mounting hardware assy
(J22-0011-03)
CD MECHANISM EXTENSION CORD (24P) :W05-0934-00
MODEL TDF PANEL No. TDF NAME
Ez700SR, Ez900HDS Y33-2110-10 TDF-EZ900
TDF PANEL INFORMATION
Panel assy
(A64-3386-22) : Ez900HDS
(A64-3417-22) : Ez700SR
DC cord
(E30-6364-05)
Screw set
(N99-1764-05)
Remote controller assy (RC-505)
(A70-2059-05)
Escutcheon
(B07-3117-02)
This product uses Lead Free solder.

Ez700SR/Ez900HDS
2
BLOCK DIAGRAM
ALC RF/IF ADC DD DEM
TDM MRC DEC
CH
ARM
DEM
COFDM
VCC VDD
TDM
COFDM
-P
MICRO
SSI
RST
SSP
3.3V 1.5V
PON HR PON SR PON 7730
DIS
for DL
DIR I/F
A8V
D4.7V
BU5V
S7.5V
D OUT
CD AUDIO
I2C
7730
RST
SEL SRC
A/D DD
A/D ANA
FM/AM
DEM
BLEND
BLEND
7730 BLEND
41.6MHz
(IF for ANALOG)
(IF for DIGITAL)
IIS-2
I2C
5MHz
SPAN SEL
FUNC. LOCK
32.768kHz
20MHz
MAIN
SUB
IC-2-5-2
I2C
CD
CH
AUX
MD
INPUT SEL
OUTPUT SEL
TONE
&
&
EQ
28.224MHz
SAF3550 FLASH
SDRAM
DIGITAL DEC
HR RST
L
R
HDY/N
SIRIUSY/N
LX
LX MUTE
I2C
MUTE
OFFSET
TYPE
PRE MUTEL
PRE MUTER
A MUTE
P MUTE
P-STBY
BEEP
PANEL DET
FLIP DET
DSI
EJECT
L CE
L CLK
L DATAS
L DATAL
KEY REQ
VOL A/B
DIM-CON
REMO
ILL CON
PANEL5V
RESET
ACC
DIMMER
PHONE
EXT. CONT
BUP
10.3V
BU5V
8V
AM
BEEP
STBY
MUTE
THERMAL
FL,FR,
RL,RR OFFSET
FL+/-,FR+/-,
RL+/-,RR+/-
BLEND
AF HOLD,AF SAMPLE
I2C
AGC/KEYED AGC (IF PROCESSING)
BLEND
SEL
DAC
CH AUDIO
AM SW1/2
FAN CONT
THERMAL
PON 7730
PON HR/PON SR
LX
SNS-V
REF-V
SIRIUS CONTROL
I2C
TUNER/7730/3550
CONTROL
TYPE
TYPE
10A
FUSE
POWER CONTROL
(To a DC/DC IC)
ILL+B
PAN5V
CD MECHANISM CONTROL
FAN CONT
I2C
LX MUTE 1
LX
ANT.
SIRIUS
ANT.
SENSE
SIRIUS STANDARD MODULE (SSM)
F/E
BU
LX CON
REQ M/S
DATA M/S
MUTE
AUDIO L/R
RST
CLK
LX-CN(5L)
SR7.2V
5V for FAN
HR1.8V
CD5V
SR1.5V
7730 1.8V
SR 3.3V
CD S7.2V
HR5V
HR8.5V
HR3.3V
HR8.5V HR5V
SR3.3V SR1.5V
7V
SR7.2V
5V
(Series)
(Series)
8.5V
SW
SW
SW
(DC/DC)
3.3V
1.5V
1.8V
(DC/DC)
SW
(Series)
3.3V
SW
SW 5.2V
(DC/DC)
(DC/DC)
7.2V
3.3V
(Series)
SW BU
BU3.3V
AM SW1/2
(To CHANGE
SWITCHING
FREQ.)
7730 3.3V
CD MECHA+B
BU
DIR
AUDIO8V
CD5V
BU5V
CD S7.5V
DXM-6740V
CD PLAYER UNIT
E2PROM
E2PROM
HPF for Es LITE
IDM
HR3.3V
7730 1.8V
AUX
FRONT
REAR
SUB-
WOOFER
MUTE
AUDIO8V
BU3.3V
PROTECT
THERMAL
2ND
E2P
SYSTEM MICRO-P
ACC DET
ILLUMI DET
TEL MUTE V-DIV
EXT AMP CONT
DC/DC
DET DET
SERGE DET
BU
SW
SW
DRIVER
LED
PANEL
SW
DET
AUDIO8V
7.9V
POWER
SUPPLY IC
BU
GND
P. CONT
ANT CONT
GND
BU
TEL MUTE
EXT. CONT
ILLUMI
ACC
FL+/-,FR+/-,
IC
RST
RST
POWER
AMP
BU
HR1.8V
7730 3.3V
Ez900HDS ONLY
Ez900HDS ONLY
BU5V
RL+/-,RR+/-
BU5V
CD MECHA+B
ILLMI10.3V
FAN
SW
5V for FAN
MUTE
SUB MICRO-P
A301
A302
IC301
IC302,304
IC402
IC1
IC205
IC101IC501
DAUGHTER
PANEL ASSY
UNIT
SWITCH UNIT
ELECTRIC UNIT (X34-334)
(X89-268)
(X16-296)

Ez700SR/Ez900HDS
3
LEVEL DIAGRAM
MAX
TYP
MIN
GAIN FM
AM
LEVEL
LEVEL
GAIN MAX
MIN
TYP
LEVEL
GAIN MAX
MIN
TYP
LEVEL
GAIN MAX
MIN
TYP
LEVEL
GAIN MAX
MIN
TYP
HD
SIRIUS
CD
CH
AUX
MECHA
(Vrms)
LEVEL
SOURCE INPUT MULTI
(Vrms)
INPUT LEVEL GAIN
(dB) INPUT LEVEL
INPUT MULTI
(Vrms)
MAX
(dB)
GAIN VOL
OUTPUT LEVEL
(Vrms)
GAIN
(dB) OUTPUT LEVEL
TONE
(Vrms)
GAIN
(dB)
TONE
(Vrms)
OUTPUT LEVEL GAIN
(dB) OUTPUT LEVEL
(Vrms)
PREOUTIC2-5-2
(Vrms)
OUTPUT LEVEL GAIN
(dB)
420
400
380
147
133
140
1000
950
1050
1000
1200
1400
810
710
910
1400
1000
1200
420
1400
1400
1000
1200
1000
1200
910
710
810
950
1000
1050
140
133
380
147
400
8
4
5
2
2
1055.0
1004.8
369.2
954.5
334.1
351.7
1164.1
1584.9
1505.6
1440.4
1262.6
1618.2
1510.7
1258.9
1510.7
1258.9
1762.5
1762.5
8
8
8
8
50
0
0
0
0
1876.1
4427.2
3162.3
3794.7
4427.2
3162.3
3794.7
3171.5
3618.1
4064.8
3782.0
3981.1
4180.1
594.1
625.4
656.6
1697.4
1786.7
3162.3
3794.7
4427.2
3162.3
3794.7
4427.2
3171.5
3618.1
4064.8
3782.0
3981.1
4180.1
594.1
625.4
656.6
1697.4
1786.7
1876.1
0
0
0
0
0
3162.3
3794.7
4427.2
3162.3
3794.7
4427.2
3171.5
3618.1
4064.8
3782.0
3981.1
4180.1
594.1
625.4
656.6
1697.4
1786.7
1876.1
0
0
0
0
01876.1
1786.7
1697.4
656.6
625.4
594.1
4180.1
3981.1
3782.0
4064.8
3618.1
3171.5
4427.2
3794.7
3162.3
4427.2
3794.7
3162.3
-0.3
-0.3
-0.3
-0.3
-0.3
1812.4
4276.9
3054.9
3665.9
4276.9
3054.9
3665.9
3063.8
3495.3
3926.8
3653.6
3845.9
4038.2
573.9
604.1
634.3
1639.8
1726.1
(a)VOLUME
(Vrms)
-10dB (a)/(b)
(dB)
(b)TARGET
LEVEL
(Vrms)
545.8
191.0
1216.2
1105.3
1159.3
1159.3 1140
1140
1140
1140
190
570
0.1
0.1
-0.4
0.0
0.6
-0.3
15
10
0
5
-15
-20
-10
-5
(TREBLE,MIDD,BASS)
MAX
MIN
TYP
FM
AM
CD MECHA
SIRIUS
CH
AUX
AUDIO LEVEL DIAGAM
LEVEL(dB)
TONEVOL OUT
SET SPEAKER
ATTCIRCUIT
EXT PRE OUT
INPUT
MUX
AUX
CH
MECHA
CD
7730
HD
RADIO
- AM
- FM
SIRIUS
IC2-5-2

Ez700SR/Ez900HDS
4
●SWITCH UNIT (X16-2960-10)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 LCD Driver Drives LCD
IC2 Remote Control IC Controls the unit
Q2 REMO ON SW The power supply of IC2 is turned on when base level goes “L”
Q3 Key Illumination SW (Red) Lights Red key-illumination when base level goes “H”
Q4 Key Illumination SW (Green) Lights Green key-illumination when base level goes “H”
Q5 Dimmer Control Lights LCD Back Light when base level goes “H”
●ELECTRIC UNIT (X34-3340-1x)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 Power Amp 50W x 4
IC101 Main µ-com Panel, CD mechanism, IC402 control, power supply management, etc.
IC102 2 input OR logic x 4 3 input, 2 output mute signal, L output: mute
IC103 Reset
IC104 E2PROM IC101 ROM correction
IC105 E2PROM IC101 security
IC202 regulator FM/AM tuner 5V power supply
IC203 DC/DC IC Servo, FM/AM_3.3V or SIRIUS_1.5V output control
IC204 DC/DC IC 5V, 1.8V output control
IC205 regulator Backup_5V, ILM, audio, DC/DC_IC power supply, P_con, P_ant
IC206 regulator SIRIUS_3.3V power supply
IC207 regulator FM/AM tuner 8.5V power supply
IC208 regulator Backup_3.3V power supply
IC301 Digital IF decoder A/D, Digital IF decoder, audio D/A, audio selector
IC302 DSP Digital FM/AM signal processing
IC303 128M SDRAM IC302 external RAM
IC304 8M Serial flash ROM IC302 boot ROM
IC402 Audio decoder “IC2v2” audio selector / filter / E-vol, etc.
IC403 Digital Interface Receiver For rewriting IC501 program, digital signal format conversion IC
IC501 Sub µ-com A301,302,IC301,302,403 control and power supply management
IC502 E2PROM Tuner adjustment data storage, ROM correction
IC503 Level shift 3.3V →5V level conversion
Q1 Power SW ON: DSI on / OFF: DSI off
Q2-7 Mute ON: mute on / OFF: mute off
Q8 Power SW ON: panel_5V on / OFF: panel_5V off
Q9,10 Mute SW ON: mute on / OFF: mute off
Q12 Control SW ON: ILLUMI power supply on / OFF: ILLUMI power supply off
Q13 Power SW ON: ILLUMI power supply on / OFF: ILLUMI power supply off
Q202 Power SW ON: SW_5V on / OFF: SW_5V off
Q203 Power SW ON: ANT_7V on / OFF: ANT_7V off
Q204 Control SW ON: IC204 ch1 off / OFF: IC204 ch1 on
COMPONENTS DESCRIPTION

Ez700SR/Ez900HDS
5
Ref. No. Application / Function Operation / Condition / Compatibility
Q205 Logic reversal ON: IC203, 4 ch1 on / OFF: IC203,4 ch1 off
Q206 Control SW ON: IC203 ch1 off / OFF: IC203 ch1 on
Q207 DC/DC drive FET DC/DC drive dual FET 7V output
Q208 DC/DC drive FET DC/DC drive dual FET 3.3 or 1.5V output
Q209 DC/DC drive FET DC/DC drive dual FET 5.2V output
Q210 DC/DC drive FET DC/DC drive dual FET 1.8V output
Q211 Detection circuit ON: normal / OFF: DC/DC abnormal output detection
Q212 Power SW ON: fan_5V on / OFF: fan_5V off
Q213 Control SW ON: fan_5V on / OFF:fan_5V off
Q214 Power SW ON: CD_5V on / OFF: CD_5V off
Q215 Control SW ON /OFF: IC203 oscillation frequency change
Q216 Control SW ON /OFF: IC204 oscillation frequency change
Q217 Control SW ON: 3.3V output setting / OFF: 1.5V output setting
Q218 Power SW ON: S_A3.3V on / OFF: S_A3.3V off
Q219 Power SW ON: S_1.5V on / OFF: S_1.5V off
Q220 Control SW ON: ANT_7V on / OFF: ANT_7V off
Q222 Power SW ON: I_1.8V on / OFF: I_1.8V off
Q223 Power SW ON: RF_8.5V on / OFF: RF_8.5V off
Q224 Control SW ON: RF_8.5V on / OFF: RF_8.5V off
Q225 Power SW ON: I_3.3V on / OFF: I_3.3V off
Q226 Current drive ON: EXT_AMP on / OFF: EXT_AMP off
Q227 Detection circuit ON: DIMMER on / OFF: DIMMER off
Q228 Detection circuit ON: Excess current detection / OFF: normal
Q229 Detection circuit ON: normal / OFF: backup below power supply setting
Q230 Detection circuit ON: normal / OFF: ACC below setting or off
Q231 Control SW ON: P_CON on / OFF: P_CON off
Q232 Power SW ON: IC301 _3.3V on / OFF: IC301 _3.3V off
Q234 Control SW ON: S_A3.3V on / OFF: S_A3.3V off
Q235 Control SW ON: IC301 _3.3V on / OFF: IC301 _3.3V off
Q236 Control SW ON: I_3.3V on / OFF: I_3.3V off
Q237 Control SW ON: I_1.8V on / OFF: I_1.8V off
Q238 Control SW ON: S_1.5V on / OFF: S_1.5V off
Q239 Control SW ON /OFF: IC203 oscillation frequency change
Q240 Control SW ON /OFF: IC204 oscillation frequency change
Q302,303 Control SW Gate ON: UART communication on / OFF:UART communication off
Q304,305 Control SW Gate ON: I2C communication on / OFF: I2C communication off
Q306,307 Control SW Gate ON: UART communication on / OFF:UART communication off
Q501 Logic reversal ON: RESET on / OFF: RESET off
Q502 Control SW ON: LED on / OFF: LED off
Q503-506 Control SW Gate ON: UART communication on / OFF:UART communication off
Q507 Power SW ON: E2PROM on / OFF: E2PROM off
COMPONENTS DESCRIPTION

Ez700SR/Ez900HDS
6
MICROCOMPUTER’STERMINAL DESCRIPTION
●MAIN MICROCOMPUTER : 703030GC053A (X34 : IC101)
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
Value Table
1PLL CLK TUNER I/O CLK output terminal to F/E
2SPAN OSPAN information output terminal L : K destination H : M destination or equivalent
3PANEL-DET EXTRA I Panel installation detection terminal Panel not installed : L Panel installed : H
4IC2 SDA AUDIO I/O Data input/output terminal with E-VOL
4IC2 SDA CD I/O Data input/output terminal with CD mechanism
4IC2 SDA EXTRA I/O Data input/output terminal with ROM collection
5IC2 SCL AUDIO I/O CLK output terminal to E-VOL
5 IC2 SCL CD I/O CLK output terminal to CD mechanism
5IC2 SCL EXTRA I/O CLK output terminal to ROM correction
6VDD -
7VSS -
8 FLIP-DET to PANEL I Flip detection terminal L : Panel installed, H :Panel flippable
9BEEP AUDIO O BEEP output terminal
10 REMO to PANEL I Remote controller input
11,12 NC O Destinations other than E and E2
13 L CE to PANEL O CE output terminal to LCD driver
14,15 NC O No variable model In FLIPDET “H”, when PANEL DET is “L”,
16 DSI to PANEL I/O EJECTKEYILL, GUIDEILL, and DSI then “H"/“L”
control terminal In FLIPDET “H”, when PANEL DET is “H”,
then “L” (When L, lighted up)
17 DIM CON to PANEL O Dimmer control terminal When ILL is On :With 50mS interval “H”/
“L”, When ILL is OFF :“H”
18 TEST -
19 ILL CON O ILL+B off when flipped While FLIPDET is “L” : H
20,21 VOL A, VOL B to PANEL I Volume key input When looking at VOL, also look at FLIPDET.
22 MOSW CD O CD mechanism MOTOR IC SW eLoading, eject, and brake :H
23 LO/EJ CD I/O CD mechanism LOADING and EJECT eSTOP, brake : Hi-Z, Loading : L, Eject : H
switching
24 M STOP CD O Stop request to CD mechanism
25 M RST CD O Reset output terminal to CD mechanism Normal :H, Reset : L
26 MUTE AUDIO I/O Mute terminal Hi-Z : Mute on, L : Mute off
27 LOE/LIM SW CD I CD DOWN SW detection terminal H : Chucking
28 M-MUTE L CD I Mute request terminal from CD mechanism L : Mute request
29 M-MUTE R CD I Mute request terminal from CD mechanism L : Mute request
30 PANEL 5V Power supply I/O Panel 5V control terminal rPanel installed :L, Panel not installed or
momentary power down : H
31 RESET to PANEL I Normal :H, Reset : L
32,33 XT1,XT2 I 32kHz
34 REGC - 1µcondenser is to be connected to GND.
35,36 X2,X1 I 20MHz
37 VSS -
38 VDD -
39 CLKOUT -
40,41 IC2 TYPE1,IC2 TYPE0 IE-VOL setting selection terminal Third party : L
42~44 TYPE2~TYPE0 I Destination selection terminal y

Ez700SR/Ez900HDS
7
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
ValueTable
45 CD MECHA+B Power supply I/O Power supply control terminal for power tON : L, OFF : Hi-Z
supply MP3
46 SW5V Power supply I/O SW5V control terminal ON : L, OFF : Hi-Z
47,48 PS2-0 (NC),PS2-1 (NC) Power supply OPower IC control terminal w
49~51 PS1-0~PS1-2 Power supply OPower IC control terminal q
52 B.U-DET EXTRA I Momentary power down detection BU detected :L, BU not detected
terminal (Momentary power down) : H
53 ACC-DET EXTRA I ACC detection terminal ACC exists : L, No ACC : H
54 DIMMER EXTRA I Small detection terminal ON : L, OFF : H
55 BVDD -
56 BVSS -
57 EXT AMP CON EXTRA O
58 NC (SVR) AUDIO O POWER IC SVR control terminal Momentary power down : H
59 P-MUTE AUDIO O POWER IC MUTE output terminal When POWER OFF :L, When ALL OFF :
L, When TEL MUTE :L
60 P-STBY AUDIO O POWER IC STBY output terminal POWER IC ON :H POWER OFF : L
61 NC O
62 PRE MUTE R AUDIO O Rch PRE MUTE output
Momentary power down :L, M-MUTE R :L
(While playing CD), When in 2 zones :H-fixed
63 PRE MUTE L AUDIO O Lch PRE MUTE output
Momentary power down :L, M-MUTE L :L
(While playing CD), When in 2 zones :H-fixed
64 NC (AFS) TUNER O Constant switching terminal during While in FM seek and AF search : L,
noise detection During reception : H
65 O-DATA EXTRA I/O External display DATA terminal
66 O-CLK EXTRA I/O External display CLK terminal
67 O-CE EXTRA I/O External display CE terminal
68 LX_RST LX O Reset output to external devices Normally L, After system reset :H
400msec or more and then L.
69 LX_CON LX O Control output to external devices ON : H, OFF : L
70 AVCONT Power supply OAD reference voltage control output While in operation : H
71 AVDD -
72 AVSS -
73 AVREF Power supply -AD reference voltage control input Connected to 70pin.
74 PHONE EXTRA I PHONE detection terminal TEL MUTE : 1V or less,
NAVI MUTE : 2.5V or more
75 TYPE3 I Destination switching terminal y
76 DC_OFFSET I DC OFFSET detection terminal
77~80 NC I Prior to initial contract (FA) with Sirius, H :LOCK, L : UN-LOCK (L while in low
81 SR_F_LOCK EXTRA I receiver function is restricted. Input for power consumption mode),Threshold
this from sub. value :1.5V
82 S-METER (NC) TUNER I S-meter detection terminal According to tuner control specification
83 NOISE (NC) TUNER I FM noise detection terminal According to tuner control specification
84 IFC-OUT (NC) TUNER I F/E IFC OUT input terminal According to tuner control specification
85 LX_MUTE LX I MUTE request from external devices H : Mute ON, L : Mute OFF
86 LX_REQ_M LX O Request output to external devices Request input pending : L
87 NC O Destination with no RDS Destination with no RDS : Output L-fixed,
MICROCOMPUTER’STERMINAL DESCRIPTION

Ez700SR/Ez900HDS
8
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
Value Table
88 LX_REQ_S LX I Request input from external devices Request input pending : L
89 KEY-REQ to PANEL I Communication request from LCD driver L : KEY input
90 LO.S SW CD I Loading start SW detection terminal Loading start : L
91 12EJE SW CD I 12cm DISC EJECT position detection 12cm DISC : L
SW terminal 12 or 8cm disc detection
92 EJECT CD I EJECT defection terminal L : KEY input
93 NC O Other than J-destination J-destination : Output L-fixed
94 LX_DATA_S LX I Data input terminal from external devices
95 LX_DATA_M LX O Data output terminal for external devices Last retained.
96 LX_CLK LX I/O CLK input/output terminal with external
devices
97 L DATAL to PANEL I Data input from LCD driver
98 L DATAS to PANEL O Data output terminal to LCD driver
99 L CLK to PANEL O LCD driver CLK output terminal
100 PLL DATA TUNER I/O F/E data with input/output terminal
Truth Value Table
q
PS1-0 PS1-1 PS1-2 AUDIO P-CON P-ANT
LLLOFF OFF OFF
H (L) L (H) L ON OFF OFF
HHLONONOFF
HHHONONON
w
PS2-0 PS2-1 ILLUMI FM+B AM+B
LLOFF OFF OFF
H (L) L (H) ON ON OFF
HHONOFF ON
LOS SW
8EJE SW
12EJE SW
LIM SW
12cm Disc Eject position
8cm Disc Eject position
Loading Start position
Disc chucking position
Does not work for
8cm Disc. (HI-fixed)
• Rising • Falling
Bu5
/MRST
/MSTOP
4V q
/MSTOP
Bu5
Bu14BUDET 5V
4V
w
e
r
PANEL 5V terminal Description of processing during
low power consumption mod
POWER OFF O L
ACC OFF I Hi-z
No panel or panel flippable I Hi-z
Momentary power down IHi-z
(with panel installed)
t
● Recommended timing for Power supply / MRST / MSTOP
qRST is to be cleared after Bu5 is 4.0V or more.(4.5V or more for
DXM-6000 series)
wThe time lag between BUDET and MSTOP dropping is depended
on the system computer. (Main cycle)
eThe time from dropping of MSTOP to Bu5V going below 4.0V should
be 4mS or more.
y
TYPE3 TYPE2 TYPE1 TYPE0 Destination Remarks
00 00Ez900HDS With Sirius and
with HD.
00 01Ez700SR With Sirius but no
HD.
00 1*Reserved
01 00Ez500 FM/AM/MP3
01 01Reserved
01 1*Reserved
1* **Reserved
e
MICROCOMPUTER’STERMINAL DESCRIPTION

Ez700SR/Ez900HDS
9
MICROCOMPUTER’STERMINAL DESCRIPTION
●SUB MICROCOMPUTER : 70F3263GC3T5A or 703262GC301A (X34 : IC501)
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
ValueTable
1AVREF0 I ADC reference voltage Connected to BU+3.3V with H/W.
2AVSS - ADC/DAC GND Connected to GND with H/W.
3,4 NC Not used. O L-output.
5AVREF1 I DAC reference voltage Connected to BU+3.3V with H/W.
6NC Not used. O L-output.
7SELF_MODE Test&Debug I/O Self-write designation Normal :Input (In place of Hi-Z-output),
In self-mode : H-output
8FLMD0 Test&Debug I Flash Programming Mode Normal :L-input, Program :H-input
9 VDD - Main power supply terminal Connected to BU+3.3V with H/W.
10 REGC - Power supply stabilization capacity Connect 4.7µF.
connection terminal
11 VSS - GND Connected to GND with H/W.
12,13 X1,X2 - Main clock terminal Connect 5MHz X’tal.
14 RESET I Reset terminal H : Normal, L : Reset
15 NC Not used. - Sub-clock terminal Pull Down
16 NC Not used. - Sub-clock terminal Open
17 SPAN HD Radio I SPAN selection input L : K-destination,
H : M-destination or equivalent
18 BUP Power supply IBU low detection H :BU low, L : BU normal
19 LX_CON_1 LX_M I Boot request from system µ-com H : slave unit ON, L : slave unit OFF
20 DRST Test&Debug I Used for N-Wire
21 LX_REQ_S_2 LX_M I Communication request from slave unit
22 LX_DATA_S_2 LX_M I Data from slave unit
23 LX_DATA_M_2 LX_M O Data to slave unit
24 LX_CLK_2 LX_M I/O LX BUS clock
25 SR_TX SIRIUS O UART output to Sirius
26 SR_RX SIRIUS I UART input from Sirius
27 NC Not used. I
28 AM_SW1 HD Radio O DC/DC Switching Freq. Cont uIn combination with AM_SW2, frequency
is controlled.
29 LX_CON_2 LX_M O Boot request to slave unit H : slave unit ON, L :slave unit OFF
30 LX_REQ_M_2 LX_M O Communication request to slave unit
31 LX_REQ_S_1 LX_M O Communication request to system µ-com
32 LX_MUTE_1 LX_M O Mute request to system µ-com H : Mute ON, L : Mute OFF
33 EVSS GND Connected to GND with H/W.
34 EVDD Main power supply terminal Connected to BU+3.3V with H/W.
35 SDA Common I/O IIC data IIC data
36 SCL Common O IIC clock IIC clock

Ez700SR/Ez900HDS
10
MICROCOMPUTER’STERMINAL DESCRIPTION
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
Value Table
37 D/L ALARM D/L function O Alarm LED lightup (When D/L is used.) H : Lightup, L : No lightup
38 BEEP D/L function O BEEP output (When D/L is used.)
39 DDI Test&Debug I Used for N-Wire.
40 DDO Test&Debug O Used for N-Wire.
41 DCK Test&Debug I Used for N-Wire.
42 DMS Test&Debug I Used for N-Wire.
43 UART_O Test&Debug O Debug port (transmission)
44 UART_I Test&Debug I Debug port (reception)
45 CCLK D/L function O DIR setting clock e
46 CDT D/L function O DIR setting data e
47 DIR_RST D/L function O DIR reset output eReset : L, Normal : H
48 DIR_CSN D/L function O DIR setting strobe e
49 UART_SW Test&Debug O 5L data terminal UART communication tL : Not permitted, H : Permitted
permission
50 DL_DATA D/L function I D/L data stream e
50 NC D/L function I D/L data stream
51 AM_SW2 HD Radio O DC/DC Switching Freq. Cont uIn combination with AM_SW1, frequency
is controlled.
52 DL_CLK D/L function I D/L bit clock e
52 NC D/L function I D/L bit clock
53 LX_DATA_M_1 LX_M I Data from system µ-com
54 LX_DATA_S_1 LX_M O Data to system µ-com
55 LX_CLK_1 LX_M O Clock from system µ-com
56 LX_REQ_M_1 LX_M I Communication request from system
µ-com
57 NC Not used. O
58 DL_CLK2 D/L function I D/L bit clock
59,60 NC Not used. O
61 PON_HR Power supply OHD Radio power supply ON control H : ON, L : OFF
62 PON_SR Power supply OSirius power supply ON control H : ON, L : OFF
63 PON_7730 Power supply O7730 power supply control H : ON, L : OFF
64,65 NC Not used. O
66 SR_RST SIRIUS O Sirius module reset L :Reset, H : Normal
67 SR_DIS SIRIUS I SSI internal communication disable H : Disable
68 NC Not used. O
69 BVSS GND Connected to GND with H/W.
70 BVDD Main power supply terminal Connected to BU+3.3V with H/W.
71 7730_RESET HD Radio O SAA7724 reset L : Reset, H :Normal
72 HR_BLEND HD Radio I Blend signal (input from IDM) H : Digital, L : Analog

Ez700SR/Ez900HDS
11
MICROCOMPUTER’STERMINAL DESCRIPTION
Pin No. Pin Name Module I/O Application Truth Processing Operation Description
ValueTable
72 NC HD Radio I Blend signal from IDM Fixed with H/W.
73 HR_7730BLEND HD Radio O Blend signal (output to 7730) H : Digital, L : Analog
74 HR_RST HD Radio O HD Radio block reset L : Reset, H : Normal
75 NC Not used. O
76 FLMD1 Test&Debug I Pull down with H/W.
77 NC Not used. O
78 U_SW Test&Debug O Debug UART terminal connection yH : Permitted, L : Not permitted.
permission to IDM UART terminal
79~81 NC Not used. O
82 TYPE0 Others I Destination SW (bit 0) q
83 TYPE1 Others I Destination SW (bit 1) q
84 TEST0 Test&Debug I Test SW (bit 0) w
85 TEST1 Test&Debug I Test SW (bit 1) w
86 TEST2 Test&Debug I Test SW (bit 2) w
87 NC Not used. O
88 FAN_ON Common O FAN ON/OFF control ON : H, OFF : L
89 VU Common I Temperature sensor input For FAN control
90 NC Not used. O
91 SR_SNS_V SIRIUS I Antenna current sensing voltage r
92 SR_REF_V SIRIUS I Antenna current detection sensing r
voltage
SW5V monitoring.The voltage is
93 VSW3 Common I divided into 2 and used as reference
voltage for FAN control.
94 NC Not used. O
95 ACT SIRIUS O Sirius activated H : Activated,
L : Not activated
96 ESN SIRIUS O Sirius activated H : ESN activated,
L : Not activated.
97 T_ERR Common O Sirius/HD or Used fro tuner as well.
H : Normal, L :Tuner Error
98,99 NC Not used. O
Prior to initial contract (FA) with Sirius, H :LOCK, L : UN-LOCK (L in low power
100 SR_F_LOCK SIRIUS O receiver functions are restricted. consumption mode)
Output is made to system µ-com for this.

Ez700SR/Ez900HDS
12
Truth Value Table
q
Destination Setting
TYPE1 TYPE0 Destination Remarks
00Ez900HDS Sirius installed, HD installed.
01Ez700SR Sirius installed, HD not installed.
1*Reserved
* : Do not care
w
SLAVE LOCAL TEST MODE SPECIFICATION
TEST2 TEST1 TEST0 Function
000Normal
**1Sirius TA Mode ON
*1*Debug Mode ON
1**No Sirius SG virtual operation mode
* : Do not care
DIR Control Contents
Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0
V/TX DIF2 DIF1 DIF0 DEAU DEM1 DEM0 DFS
0x02 Format & De-emphasis Control 0 0 0 0 0 010
Shifted to right end. *1 De-emphasis OFF
*1 : De-emphasis Auto Detect Disable (Manual) Those in italic indicate shift point from default.
Rch Data
Lch Data
LRCK
DL_CLK
DL_CLK2
SDTO
DL_DATA
Transmission data: 1 bit
(Audio data:16 bits)
MSB of audio data Shifted to right end
Transmission data '1'
Transmission data '0'
Data clock input timing for µ-com (Clock : 44.1kHz)
PON_7730
7730_RESE
PON_SR
SR_RST
PON_HR
HR_RST
DIR_RST
DIR_CSN
CCLK
CDT
25ms
100ms
50ms
100ms Bit Rate : 300-400kbit/s
C1-C0=“00”, R/W=“1”
C1 C0
R/W A4 A3 A2 A1 A0D7D6 D5D4 D3D2 D1D0
Expansion in time-axis direction
e
DIR Control Timing
MICROCOMPUTER’STERMINAL DESCRIPTION

Ez700SR/Ez900HDS
13
MICROCOMPUTER’STERMINAL DESCRIPTION
rAntenna Detection Method
(1)SSM internal circuit is used to detect antenna connection. Sub µ-
com makes judgment by a notification from SSP.
(2)Current detection for excess current protection uses the same
method as KTC-SR902.
It is necessary to change the threshold set by software, as resis-
tance value for detection has been changed.
When the value is “28” or higher, it is determined that excess cur-
rent is detected →DC/DC is stopped.
(3)Antenna power supply produced in DC/DC is 7.2V.
t
Normal Condition
URATcommunication permitted condition (In test mode, permission is
to be given when 5L sources equivalent to simplified AUX are recog-
nized.)
UART_O H/L
UART_SW L
LX_DATA_M_2 H/L
URAT_I
LX_DATA_S_2
LX DATA M
LX DATA S
Signal name Terminal setting
Debug terminal TX
Debug terminal RX
UART_O H/L
UART_SW H
LX_DATA_M_2 Z
URAT_I
LX_DATA_S_2
LX DATA M
LX DATA S
Signal name
Debug terminal TX
Debug terminal RX
(OD H-output or input setting)
Ignore
y
Normal Condition
URAT connection permitted condition (Permission is to be given when
receiving specific command from UART terminal, or in case of IDM D/
L. Recovery is made only by resetting.)
ID M UART RX
IDM UART TX
UART_O H/L
U_SW L
URAT_I
Signal name Terminal setting
Debug terminal TX
Debug terminal RX
ID M UART RX
IDM UART TX
UART_O Z
U_SW H
URAT_I
Signal name Terminal setting
(OD H-output or input setting) Debug terminal TX
→(Used as RX.)
Debug terminal RX
→(Used as TX.)
Ignore
u
K (10kHz_span)
f1 f2 f3
*1 360 405 445
*2 720 810 890
*3 1080 1215 1335
*4 1440 1620 1780
*5 1800 2025 2225
SW1 SW2
qWhen f0 is outside the range of ((n1xf3) ±85) HL
(n1=1,2,3,4,5)
wWhen f0 is within the range of ((n1xf3) ±85) LL
(n1=1,2,3,4,5)
When f0 is within the range of ((n1xf3) ±85) and
eat the same time within the range of ((n1xf1) ±85) L H
(n1=1,2,3,4,5)
* f1~f3 are written on E2PROM.

Ez700SR/Ez900HDS
14
TEST MODE
●How to enter the test mode
Reset while pressing both Preset qkey and Preset ekey at
the same time.
●How to clear the test mode
•Ez700SR/Ez900HDS Model
Reset while pressing down Preset ykey. This should be
done with panel-not-installed and other modes ON. (Reset,
ACC OFF, power OFF, and momentary power drown do not
clear the test mode.)
•Ez500 Model
Reset, ACC OFF, power OFF, panel-not-installed and other
modes ON. (Note : Momentary power down does not clear
the test mode.)
●Initial conditions of the test mode
•Source is STANDBY.
•Displays are all lighted up.
•Volume is -10dB (displayed as 30).
•LOUD is OFF.
•CRSC is to be turned OFF, regardless of whether there is
switching function or not.
• SYSTEM Q is FLAT.
•BEEP is sounded with a short-push at all times.
•AUX is ON.(This is only the models with AUX.)
•SYSTEM Q on the menu is OFF.
• (The initial value of the variable model is white.)
●Special displays when set toTUNER (Ez500 Model
only)
When in TUNER mode, if the following messages were dis-
played, there are abnormalities in the front end, etc.
•“TNE2P”: EEPROM is still with the initial value (unspecified
value), as the F/E being shipped without going through the
adjustment process.
• “TNCOM” : Communication with the F/E is not possible.
●CD receiver test mode specification
•At the time of the reset start, forced CD eject is prohibited.If
reset is effected with the CD in the unit, the CD would not
be recognized.
•By the use of the track-up key, jumps are made to tracks in
the following order.
No.9 →No.15 →No.10 →No.11 →No.12 →No.13 →
No. 22 → No. 14 →No. 9 (Returns to the starting point)
•By the use of the track-down key, it is possible to go down
one track from the current one.
•If the total number of tracks of an MP3 disc is less than 9,
the first track will be the first track to be played.
•If the media is CD, pressing Preset qkey would effect a
jump to No. 28.
•If the media is CD, pressing Preset wkey would effect a
jump to No. 14.
•If the media is CD, pressing Preset ykey would effect a
jump to No. 15.
(Models with DC error detection function (Ez700SR,
Ez900HDS)
●Audio-related matters
•By using a short-push on the AUD key, it is possible to enter
the Audio Adjust Mode.
• By pressing ∗key on the remote controller, it is possible to
enter the Audio Adjust Mode.
•Long-push on the remote controller is prohibited. Short-
pushes are to be used for operation.
• The initial items are faders.
•Using track up/down key, the fader is to be adjusted to the
following three steps : R15 ⇔0 ⇔F15.(Initial value : 0)
•Using track up/down key, the SW Level is to be adjusted to
the following three steps :-15 ⇔0 ⇔+15.(Initial value :0)
•Using track rack up/down key, Bass/Middle/Treble is to be
adjusted to the following three steps :-8 ⇔0 ⇔+8. (Initial
value : 0)
*Bass f/Bass Q/Bass EXT/Middle f/Middle Q/Treble f do not
appear in the Audio Adjustment.
•Using track up/down key, balance is to be adjusted to the
following three steps : L15 ⇔0 ⇔R15.(Initial value :0)
•Using track up/down key, HPF is to be adjusted to the fol-
lowing 2 steps :THRU ⇔170Hz (or 200Hz. (Initial value :
THRU) (Ez500)
•Using track up/down key, HPF Front is to be adjusted to the
following 2 steps :THRU ⇔170Hz. (Initial value :THRU)
(Ez700SR, Ez900HDS)
•Using track up/down key, HPF Rear is to be adjusted to the
following 2 steps : THRU ⇔200Hz. (Initial value: THRU)
(Ez700SR, Ez900HDS)
•Using track rack up/down key, LPF is to be adjusted to the
following 2 steps :THRU ⇔120Hz.(Initial value :THRU) (In
the 2 Pre-out models, by using long-push on ATT, it is pos-
sible to switch Pre-out NF/REAR.)
●MENU-related items
•Using a short-push on the PALY/PAUSE key, it is possible to
enter the MENU.
•Using the DNPP key on the remote controller, it is possible
to enter the MENU.
•Using a long-press on the remote controller is prohibited.
Short-pushes are to be used for operation.
•Using the track up/down key, contrast adjustment is to be

Ez700SR/Ez900HDS
15
TEST MODE
conducted into the following 3 steps : 0 ⇔5 ⇔10. (Initial
value : 7)
●Back up current measurement
When reset with ACC OFF (or with backup is ON) MUTE ter-
minal goes OFF after 2 seconds, instead of 15 seconds as is
normally the case.(At that moment, the CD mechanism is not
operating.)
● Special display when all indicators are lighted up
When the preset key is pressed with all indicators lighted up in
All OFF mode, the following will be displayed.
qKey • Version display (8 digits month, date, hour,
minute)
(Display) SYS xxxxxxxx
wKey • Serial number display (8 digits)
(Display) SNo xxxxxxxx
eKey•Short-push :Number of power ON hours display
(ALL OFF hours not counted.)
•Long-push of 2 seconds during Number of power
ON hours display : Number of power ON hours
is cleared
(Display) PonTim xxxxx MAX 60000 (hours)
rKey • Short-push : CD operation time display
• Long-push of 2 seconds during CD operation
time display :CD operation time is cleared.
(Display) CDTim xxxxx MAX 60000 (hours)
tKey • Short-push : Number of CD EJECT times
display
• Long-push of 2 seconds during number of CD
EJECT times display : number of CD EJECT
times is cleared.
(Display) EjeCnt xxxxx MAX 60000 (times)
yKey•Short-push :Number of PANEL open/close times
display
•Long-push of 2 seconds during Number of
PANEL open/close times display : Number of
PANEL open/close times is cleared.
(Display) PnCnt xxxxxx MAX 600000(times)
FM Key • ROM correction version display
(Display)When effective : ROM R KKK
(K: Number)
When not effective
(reading unsuccessful) :ROM R – – –
When not effective
(version different) : ROM R∗∗∗
TRACK-UP •Audio data initial value setting (Models with DC
Key error detection function only)
(Display) AUDIO INIT
●Others
•When qkey is pressed, only during internal AUX, 2-ZONE
ON/OFF is effected.When ON, P/S dot is turned ON all the
time.
•When turning power ON, “CODE OFF/ON” will not be dis-
played.
•When booted up in Test Mode, normally 10 seconds LINE
MUTE prohibition time is shortened to 1 second.
•In the Test Mode, security code should not be written with
security jigs. (*1)
•In the Test Mode, serial number should not be written with
serial number writing jigs. (*1)
•In the Test Mode, even if OEM Display is not connected,
“OEM Display Out” output is not stopped.
(*1) Since this mode clears Test Mode by resetting, it is not
necessary to have it.
●Frequency span switching (K/MType)
Reset while pressing both qand tkeys.
●OEM compatible setting (Electronic volume des-
tination setting) (Ez500 only)
The models installed with S03F/E can cope with OEM models
by using the 2-pin on the microcomputer.
The following is the setting method.
IC2-TYPE0 IC2-TYPE1 Contents
(41pin) (40pin)
Low Low qThird party model (Initial value)
Low High w Thirdpartymodel CRSCchange
High Low eOEM model compatible CRSC
change
High High rOEM model compatible CRSC
& de-emphasis change
●Security
•Forced power ON mode
It is possible to make the power come on for 30 minutes
only, even if the security is set (for both the simplified secu-
rity and security codes.). This is achieved by pressing Q
and rkeys at the same time. Recoveries can be made
only by resetting after the elapse of 30 minutes. (Note : Use
of the above mode does not clear the security code. It’s
purpose is to have the power come on temporarily.)
•How to clear the simplified security code (K-type only)
1.When it is requested to enter the code, while pressing
AUTO key, use long-push on the Track up key for 3 sec-
onds.(This makes – – – – disappear.)
2.Using the remote controller, input “KCAR”.

Ez700SR/Ez900HDS
16
TEST MODE
Press the remote controller 5 key 2 times and then press
the Track up key. (Inputting “K”)
Press the remote controller 2 key 3 times and then press
the Track up key. (Inputting “C”)
Press the remote controller 2 key once and then press
the Track up key. (Inputting “A”)
Press the remote controller 7 key 2 times and then press
the Track up key. (Inputting “R”)
3.Above procedure clears the security which causes the
unit to go into ALL OFF mode.
4.If wrong codes were entered, the unit goes into the Code
Request mode.
●Initializing AUDIO-related value setting (DCERR-
related)
•Ez700SR/Ez900HDS Model
1.Enter ALL OFF (STANDBY) mode.
2. While in the ALL OFF (STANDBY) mode, short-push
key, which re-establishes the AUDIO-related values to the
default values of theTest Mode.
●Clearing DC error detection information (EEPROM
data clear)
•Ez700SR/Ez900HDS Model
1.While pressing down on Preset eand Preset ykeys,
reset to enter the DC Error Display mode.(The Test Mode
is cleared at this point.)
2. In the ALL OFF mode display, the current DC error condi-
tions are displayed.
Error detected :“DC ERROR”
Error not detected :“DC OK”
3.The detected error information can be cleared by long-
push on the [AUD] key, while the error information is be-
ing displayed.(EPROM clear)
4.DC Error Display mode can be cleared by resetting. (The
condition prior to power OFF is not retained.)
●Sirius Function Lock Release mode
•Ez700SR/Ez900HDS Model
1.While pressing down on Preset tand Disp keys, reset
to enter the DC Error Display mode. (The Test Mode is
cleared at this point.)
2.If Sirius is prior to FA, the source switching is restricted.
In case of evaluations, however, restrictions would cause
the evaluations to be ineffective. In the HDRadio Test
Mode, therefore, source switching is possible as with the
normal operation.
Prior to Sirius FA : Only ”STANDBY” and“SIRIUS” can be
selected as sources.
3.The initial value of the volume will be 30.The specifica-
tion is such that this value is retained even after turning
power ON/OFF.
4.This mode is cleared by resetting.(The condition prior to
power OFF is not retained.)
●SIRIUS Channel Lock Clear
If the code for clearing the locked channel was lost (when los-
ing track of the code), the default code (0000) can be retrieved
by pressing the reset button.
It must be noted, however, the above procedure would clear
any skip/lock that has been set.
SIRIUSTEST MODE

Ez700SR/Ez900HDS
17
HD RADIOTEST MODE
1. How to Start/End theTest Mode
1-1. How to start the test mode
While pressing Preset 1 and Preset 3 keys at the same time,
press the reset button.Keep on pressing on the Preset keys,
until the H/U boots up.(Note : That the volume is turned up to
maximum in the test mode.)
1-2. How to end the test mode
While pressing Preset 6 key, press the reset button.If the re-
quests are made to panel removal and other modes, the test
mode is cleared.
2. Operational Specifications
Operations in the test mode are those functions needed for
tests added to the normal mode. Also, there are the following
points that are different from the normal mode in addition to
the added functions for the test mode.
•For the CRSC function, the default is OFF.
•Span switching is made ineffective and operations are al-
ways those for K-destination.
Note :When switching span in the normal mode, it is pos-
sible to receive only analog.Digital cannot be received.Also,
since the reception mode is removed from the menu,
changescannot be made on the reception mode.This means
the unit will always function in the analog mode.
3. Operation of the Head Unit
3-1. Operation with the source ON
Only in the test mode, when Tuner/HD Radio source is ON,
the tuner condition is checked.When an error is detected, the
error content is displayed in 5 digits of frequency section.When
normal, the normal frequency is displayed.
Display of adjusted tuner
Display of un-adjusted tuner
Display of tuner when there is an error
3-2. Normal test mode
In the test mode, whenTuner/HD Radio is sourced, there are
two modes: normal test mode and reverse test mode for ser-
vicing.The differences in these modes are that allocations of
preset keys are different. Shown below are the allocations of
preset keys in the normal test mode.
Allocations of preset keys in the normal test mode
Note :Those in italic indicate Ez900HDS only.
3-2-1.Version display (Ez900HDS only)
In each band, pressing Preset 4 key would display versions of
the host controller and IDM. In order to display the versions,
select Title by switching DISP of H/U.
3-2-2. Reception level display (S-meter value)
In each band, by using a long-push on the Preset 4 key, dis-
play of the S-meter values begin.In the frequency section, the
S-meter value is displayed in 2 digits. For the display, select
Frequency in the DISP switching of H/U. S-meter value is up-
dated once every second. Using a long-push on the Preset 4
key would end the S-meter value display and the unit returns
to the normal frequency display.
1 2 3 4 5
FM1 87. 9
6
1 2 3 4 5
FM1 888. 88
6
1 2 3 4 5
FM1 999. 99
6
123456
HF1 Call 87.9MHz 98.1MHz 107.9MHz Version Receive
For
Mode Service
Memory -- -S-meter --
HF2 Call ●● ● Version Receive
For
Mode Service
Memory ●● ● S-meter --
HF3 Call ●● ● Version Receive
For
Mode Service
Memory ●● ● S-meter - -
HA1 Call 530kHz 1000kHz 1700kHz Version Receive
For
Mode Service
Memory -- -S-meter --
1 2 3 4 5
FM1 25.
6

Ez700SR/Ez900HDS
18
3-2-3. Reception mode switching (Ez900HDS only)
In each band, every time the Preset 5 key is pressed, the re-
ception mode is switched in the following manner : Auto →
Digital →Analog →Auto. In order to display reception mode,
select Station in the DISP switching on the H/U.
3-2-4. Entering the reverse test mode for servicing
In each band, by pressing Preset 6 key, it is possible to enter
the reverse test mode for servicing. When this mode is en-
tered, the frequency display will show a blank. In order to dis-
play frequency, select frequency in the DISP switching on the
H/U.
3-3. Reverse test mode for servicing
Shown below are allocations of preset keys in the reverse test
mode for servicing.
Reverse test mode preset key allocation
Note :Those in italic indicate Ez900HDS only.
3-3-1. Beginning tuner pack adjustment
In the band AM, when a long-push is effected on the Preset 6
key, the tuner pack adjustment mode can be entered.When
the mode is entered, “000” is displayed in the frequency sec-
tion.If there is an error in reading EEPROM,“8 0” is displayed.
In order to display frequency, select Frequency in the DISP
switching on the H/U.
Note: When entering this mode, EEPROM adjustment data
is cleared even with the tuner pack adjusted sets.This mode,
therefore, should not be entered except at the time of tuner
pack adjustment.
Prior to adjustment, adjustment signal of AM 1000kHz
should be input.When the adjustment begins, all polling is
stopped, which makes normal operation impossible imme-
diately after the adjustment. For normal operation, the unit
must be rebooted.The polling is stopped even during S-
meter display.This means that S-meter display function is
stopped. (ACC ON/OFF will make the display come back
again.)
Display after successful adjustment
Display after un-successful adjustment
3-3-2.Tuner pack adjustment
In the items 3-2-3 through 3-2-6 below, the adjustment condi-
tions of the tuner packs are displayed in the frequency display
section. In order to display frequency, select frequency in the
DISP switching on the H/U.The display format of the adjust-
ment conditions will be made in 3 digits in the following man-
ner.
*At the time of replacing the tuner pack, it is necessary to
conduct this operation.
EEPROM un-written :“000”
In adjustment : “(item ID) (blank) (blank)”
Adjustment successful :“(item ID) (blank) 1”
Adjustment unsuccessful :“(item ID) (blank) 0”
Verify OK :“111”
Verify NG :“8 (blank) (item ID)”
3-3-3. FM tracking filter adjustment
87.9MHz adjustment (Item ID1) : Preset 1 for Band FM1
98.1MHz adjustment (Item ID2) : Preset 1 for Band FM2
107.9MHz adjustment (Item ID3): Preset 1 for Band FM3
HD RADIOTEST MODE
1 2 3 4 5
FM1 .
6
1234 5 6
HF1 Call tf1 - - Ber Gain Start -
Memory Verify - - - Set Gain -
HF2 Call tf2 sm2 ssl2 Ber Gain Start -
Memory Verify - - - Set Gain -
HF3 Call tf3 - - Ber Gain Start -
Memory Verify - - - Set Gain -
HA1 Call - sm 1 ssl 1 Ber Gain Start -
Memory Verify - - - Set Gain Alignment
1 2 3 4 5
HA 000.
6
1 2 3 4 5
HA 8 0.
6
1 2 3 4 5
FM1 111.
6

Ez700SR/Ez900HDS
19
While adjusting these,“1,”“2,” or “3” is displayed and when the
adjustment is successful, the 1 digit will display 1 and when
there is an error, the 1 digit will display 0.
3-3-4. S-meter adjustment
AM adjustment (Item ID4) : Preset 2 for Band AM
FM adjustment (Item ID5) : Preset 2 for Band FM2
While adjusting these, “4” or “5” is displayed and when the
adjustment is successful, the 1 digit will display 1 and when
there is an error, 1 digit will display 0.
3-3-5. Seek/Stop/Level adjustment
AM adjustment (Item ID6) : Preset 3 for Band AM
FM adjustment (Item ID7) : Preset 3 for Band FM2
While adjusting these, “6” or “7” is displayed and when the
adjustment is successful, the 1 digit will display 1 and when
there is an error, the 1 digit will display 0.
3-3-6.Verify
Adjustment date verify (Item ID8)
In each band, using a long-push on the Preset 1 key, whether
the adjustment data has been correctly written on the EEPROM
or not can be checked.When the data is successfully written
on the EEPROM,“111” will be displayed.If there is an error or
errors, the item ID will be displayed. (Even if there are 2 or
more errors, only 1 ID is displayed.) If the EEPROM has not
yet been written, “000” will be displayed.
“111” : EEPROM read successful.
“8 0” : EEPROM read un-successful.
“8 1” : There has been an error in the FM tracking filter for
87.9MHz.
“8 2” : There has been an error in the FM tracking filter for
98.1MHz.
“8 3” : There has been an error in the FM tracking filter for
107.9MHz.
“8 4” : There has been an error in the S-meter adjustment
for AM.
“8 5” : There has been an error in the S-meter adjustment
for FM.
“8 6” : There has been an error in the seek/stop/level ad-
justment for AM.
“8 7” : There has been an error in the seek/stop/level ad-
justment for FM.
“000” : EEPROM has not yet been written.
HD RADIOTEST MODE
3-3-7. BER measurement (Ez900HDS only)
BER information obtained from IDM is displayed.
Note : When making BER measurements, please be sure to
input the signal for BER measurements.
•Measurement method
1. Select “Station” in the H/U DISP switching.
2. By pressing Preset 4 key, the unit enters the BER Mea-
surement Mode and “10s Wait” message is displayed.
3. After 10 seconds, a value will be displayed.When there
is no error, “0.0E-9” is displayed.Also, if the condition is
such that the BER test cannot be conduced, “No Test”
will be displayed.
3-3-8. IBOC gain adjustment (Ez900HDS only)
The IBOC gain is adjusted by the IBOC Scaling of the BBP
(7730).The objective of this adjustment is to make the analog
and digital levels the same.
•Adjustment Method
1. Select “Station” in the H/U DISP switching.
2. By pressing Preset 5 key, the unit enters the adjustment
mode and the current value is displayed.
3. Using (UP/DOWN) key, adjust the levels.(By a
short-push, 1 bit is adjusted. By a long-push, 8 bit as a
unit is adjusted with 100ms interval.)
4. With a long-push of Preset 5 key, the selection is final-
ized and it is written to EEPROM.
5. When the writing is completed, “GAIN END”is displayed.
6. The values of the IBOC gain values are immediately ef-
fective and the values are read off the EEPROM at the
time of booting.
Note : At the time of IBOC gain adjustment, the unit must
be in digital signal reception condition.
1 2 3 4 5
1. 03E–4
6
1 2 3 4 5
0. 0dB
6

Ez700SR/Ez900HDS
20
ADJUSTMENT
● Calibration on the Fan OperationTemperature
1. Objective
In order to reduce the soiling of the CD mechanism pick, the
fan operation has been made intermittent-type, driven by tem-
perature monitoring.Due to variances among parts, however,
the operating temperature of fan also varies.Adjustments are
needed, therefore, in terms of the temperature calibration.
2. Subject parts with variances
TH1 posistor
IC205 Power IC
Q202 transistor
3. Adjustment timing and method
•When conducting the adjustment, the ambient temperature
should be15~30°C.
•The sets to be adjusted should be left in the temperature
range for some time, in order to make the temperature of
the sets fall within the temperature range.
• Refer to the table below for adjustment method.
Conditions for Adjustment Method Note
Adjustment
At the time of 1.Boot in the test Conduct adjustment
replacing parts mode. as quickly as
on Item 2. 2.Select SIRIUS possible after
source turning power on.
3.Long-push Preset (Less than a minute)
“1” key. Note1)
Note1) If and when there is more than a minute after turning
the power is turned on a set, wait till the heat sink on the back
cools or cool the heat sink using a fan. (Cool to temperature
below 30°C. Until slight coolness can be felt on your hand.)
Then, restart adjustment. Also, when replacing TH1 posistor,
wait till this part cools. (Rule of thumb is about 10 minutes.)
When finding out that a wrong adjustment action has been
taken, adjust again following the above (2) and (3) procedures.