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