70%
DVD / AV RECEIVER
DVR-5070
SERVICE MANUAL
© 2001-12 PRINTED IN KOREA
B51-5778-00 (K/K) 1382
Front panel
(A60-2252-08)
DEC crystal
(B10-3860-08)
DIN socket
(E63-1243-08)x4
Pun cover
(A01-3863-08)
In compliance with Federal Regulations, following are repro-
duction of labels on, or inside the product relating to laser
product safety.
KENWOOD-Corp. certifies this equipment conforms to DHHS
Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
Caution : No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
Knob(VOLUME)
(K29-8207-08)
DEC button
(K29-8163-08)
DEC button p
(K29-8165-08)
Tuner ass'y
(W02-2925-08)
MLD clamp
(J42-0350-08)
Wire-MCRDM
(E30-7276-08)
Plastic MLB
(B19-1643-08)
Oscillating module
(W02-2911-08)
Oscillating module
(W02-2936-08)x2
Phono jack
(E63-1244-08)x2
Phono jack
(E63-1271-08)
Conn-speaker
(E70-0165-08)
Phono jack
(E63-1274-08)x2
Optical input jack
(W02-2934-08)
Phone jack
(E11-0957-08)
S-video jack
(E56-0045-08)
RCA jack
(E63-1272-08)
DIN socket
(E56-0046-08)
MC-Service
DVR-5070
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS ............. 2
BLOCK DIAGRAM ......................................................3
CIRCUIT DESCRIPTION ............................................4
WIRING DIAGRAM .....................................................9
PC BOARD ...............................................................10
SCHEMATIC DIAGRAM .......................................... 15
EXPLODED VIEW ....................................................28
PARTS LIST..............................................................29
SPECIFICATIONS ......................................Back cover
Contents
FM indoor antenna (1)
(T90-0882-08)
Loop antenna(1)
(T90-0896-08)
Video cord(1)
(E30-1427-08)
Speaker cord(5)
(E30-7271-08): RED
(E30-7272-08): WHT
(E30-7273-08): GRN
(E30-7274-08): GRY
(E30-7275-08): BLU
Batteries (LR03/AAA)(2)
Remote control unit (1)
(A70-1582-08)
Caution on condensation
Condensation (of dew) may occur inside the unit when there is
a great difference in temperature between this unit and the out-
side.
This unit may not function properly if condensation occurs. In
this case, leave the unit for a few hours with the power left ON,
and restart the operation after the condensation has dried up.
Be specially cautious against condensation in a following
circumstance:
When this unit is carried from a place to another across a large
difference in temperature, when the humidity in the room where
this unit is installed increases, etc.
Stored contents which are
cleared in at least a week after
power plug is unplugged from
power outlet.
Amplifier section
Last input selection
Volume control value
Surround setting
Tuner section
Receiving band
Frequency
Preset stations
Tuning mode setting
DVD section
Menu setup
Power status
Memory backup function
Note related to transportation and movement
Before transporting or moving this unit, carry out the fol-
lowing operations.
1 Remove the disc from the unit.
2 Press the 6 key.
3 Wait a few seconds and turn the unit OFF.
Operation to reset
The microcomputer may fall into malfunction (impossibility to
operate, erroneous display, etc.) when the power cord is un-
plugged while power is ON or due to an external factor. In this
case, execute the following procedure to reset the microcom-
puter and return it to normal condition.
÷ Please note that resetting the microcomputer clears the
contents stored in and returns and to condition when it left
the factory.
Set the POWER switch to ON (set to Standby mode).
Then press the
¢ key, 4 key and STOP key in this
order.
Cautions
Accessories
Cautions
DVR-5070
3
BLOCK
DIAGRAM
D GND
6dB
6dB
C-VIDEO
DVD
S-VIDEO
6dB
6dB
DVD
AGND
-5.6V
+5.6V
COMPOSITE
R(CR)
B(CB)
G(Y)
C
Y
+5.6V
-5.6V
AGND
R(CR)
B(CB)
G(Y)
C
Y
CVBS
FROM SYSTEM u-COM
27MHz
DAC MCLK
AGND
MGND
DGND
+5.6V
SPDIF
DGND
MGND
+5VA
AGND
+12VA
-5VA
+3.5V
+2.5V
+5V
+5.5VS
+9VM
+12VM
to
DVD & VIDEO
GND
P/C
5.5VS
P/D
to FRONT
LPF
LPF
LPF
LPF
LPF
LPF
INPUT
12.28MHz
SDATAN1
SW
CT
SR
SL
FR
FL
DVD
FROM SYSTEM u-COM
SW
CT
SR
FR
SL
FL
SW
CT
SR
SL
FR
FL
FL
GND
FR
SR
GND
SL
CENTER
DC PROTECTION
CHGND
AM OSC
FM OSC
22
4
DGND
AGND
TUNER-L
TUNER-R
to u-COM
AGND
BUFFER
RDS DATA/CLK
GND
GND
7
4
5
6
1
2
3
1
2
3
1
2
F201
RY201
ST-BY +5V
AC INPUT FOR SMPS
AC2
AC1
+
VEE/S1
VDD/S1
+
-15V
+
+15V
AC1
+
AC2
OUT
GND
IN
FL AC
FL AC
+3.3V
+5V
+
FUNCTION SECTION
CONTROL
SECTION
VOLUME/TONE
TUNER
DVD
CONTROL
LED
CE,CLK,DATA
4094
+5V
A/D INPUT
P/C
RDS DATA/CLK
POWER DOWN
TO SMPS
DETECT
DC
PROTECT
DGND
HEADPHONE
DETECT
H MUTE
17dB
W/F
MUTE
C/S
MUTE
SUB WOOFER
GND
GND
AUX(FRONT)
SAT/CABLE
VCR OUT
VCR IN
MONITOR
MONITOR
VCR OUT
SAT/CABLE
VCR IN
AUX(FRONT)
VIDEO
SWITCHING
AUDIO
OUTPUT
IC201
MPEG
PROCESSOR
SDRAM
FLASH
EEPROM
ADC
MECHANISM
CONTROL
LOAD
PLL IC
DAC
AUDIO-
IC1
SECTION
DVD
SMPS FOR
DVD & VIDEO
FOR DVD
AC INPUT
AUX(F)
VCR
OPTICAL
VCR
OPTICAL
OUTPUT
DIGIT
AL
INPUT
(OPTICAL)
DIR
PROCESSOR
SURROUND
ADC &
DAC
IC5
IC1
IC14
IC11,12
IC84
VOLUME &
MASTER
TONE
CIRCUIT
IC88(1/2)
IC88(2/2)
IC87(1/2)
IC87(2/2)
IC86(1/2)
IC86(2/2)
IC101
SPKR
RLY101
IC104
RLY102
SPKR
IC103
RLY103
SPKR
JACK101-C
JACK101-A
JACK101-B
GND
AM LOOP
FM75
ANTENNA
AM RF
FRONT-END
FM
IF AMP
FM/AM
DECODER
RDS
IF+MPX
PLL
TUNER MODULE
VCR IN
VCR OUT
AUX/FRONT
SAT/CABLE
IC75
IC10
AUDIO
SWITCH
CN113
CN121
CN206
AC INPUT
STAND -BY
CONTROL
Q201
D70
IC501
SYSTEM u-COM
FL431
FL DISPLY
IC431
REGISTER
SHIFT
FRONT KEY
FUNCTION
HP401
PROTECTION
Q402,Q407
HEAD-
PHONE
IC85
HEADPHONE
AMP
VIDEO INPUT
Q84,85
REC OUT
REC OUT
DIGITAL
IN
DATA
DATA
DIGITAL
DATA
CABLE
SAT/
DIGITAL
OUT
OUT
OUT
IC3(4/4)
IC3(1/4)
IC2(2/4)
IC2(1/4)
IC1
IC2(4/4)
PRE AMP
IC102
IC105
J1
SUB
PRE OUT
WOOFER
SAT/
CABLE
(COAXIAL)
DIGIT
AL
INPUT
TV
Q76,Q77,
THERMAL
FAN CONTROL
CIRCUIT
PROTECTION &
SURROUND
DSP B'D
IC70
IC71
IC73
IC72
DVR-5070
ACTIVE
EQ B'D
MC-Service
DVR-5070
4
CIRCUIT DESCRIPTION
Port No.
Port Name
I/O
Description
1
GRID2
O
FIP GRID
2
GRID1
O
FIP GRID
3
NC
-
CONNECTED TO VDD
4
POWER DOWN
I
POWER DOWN CHECK
5
RDS CLK
I
RDS CLOCK
6
DVD RX
I
DVD UART INTERFACE (RX)
7
RDS OPTION
-
NC (CONNECTED TO GND)
8
RMC
I
REMOTE CONTROLLER SIGNAL
9
RDS DATA
I
RDS DATA
10
SM7346 CLK
O
VOLUME IC (IC84) CLOCK
11
SM7346 DATA
O
VOLUME IC (IC84) DATA
12
ENCODER UP
I
ENCODER (1) SIGNAL
13
ENCODER DW
I
ENCODER (2) SIGNAL
14
DVD TX
O
DVD UART INTERFACE (TX)
15
DVD RST
O
DVD RESET
16
DSP A. BOOST
O
DSP AUTO BOOT
17
H/P CHK
I
HEADPHONE CHECK
18
CS8415A-CE
O
DIR IC (IC14) CHIP ENABLE
19
EMPHASIS
O
CS4228 DAC IC EMPHASIS ON/OFF
20
TUNED
I
TUNED SIGNAL
21
DSP INTREQ
O
DSP INT REQUEST
22
4094CE
O
IC431 CHIP ENABLE
23
CS49326 CE
O
CS49326 DSP IC (IC5) CHIP ENABLE
24
CS4228 CE
O
CS4228 DAC IC (IC1) CHIP ENABLE
25
DSP CLK
O
CS49326 DSP IC (IC5) CLOCK
26
CS49326 DATA IN
I
CS49326 DSP IC (IC5) DATA
27
DSP DA OUT
O
CS49326 DSP IC (IC5) DATA
28
VREF
I
A/D REFERENCE (5V)
29
PROTECT
I
AMP PROTECTION IN
30
KEY IN
I
A/D KEY
31
EEPROM DATA
I/O
EEPROM (IC502) DATA
32
EEPROM CLK
O
EEPROM (IC502) CLOCK
33
8415 DA IN
I
CS8415 DIR IC (IC14) DATA
34
DVD OPTION
I
MODEL DISCRIMINATION
35
PLL DATA IN
I
PLL DATA
36
STEP OPTION
I
TUNER STEP OPTION
37
VSS
I
AVSS (ANALOG GND)
38
RST
I
RESET(LOW ACTIVE)
39
EXTAL
I
X-TAL IN(10MHz)
40
XTAL
O
X-TAL OUT(10MHz)
41
GND
-
VSS (DIGITAL GND)
42
NC
O
UNUSED
43
GND
-
GND
44
VDD
I
VDD (DIGITAL VDD)
45
VFDP
I
VFDP (FIP PULL DOWN POWER -30V)
46
STANDBY
O
STANDBY (POWER RELAY ON/OFF)
47
SPK RELAY
O
SPEAKER RELAY ON/OFF
48
SUB ON/OFF
O
SUB WOOFER GAIN CONTROL
49
CS8415 RST
O
CS8415 (IC14) RESET
50
PLL CE
O
PLL CHIP ENABLE
51
PLL CLK
O
PLL CLOCK
52
PLL D OUT
O
PLL DATA
53
A CLK
O
COMMON CLOCK(LC7821,BU4094)
54
A DATA
O
COMMON DATA(LC7821,BU4094)
55~59
VIDEO (SW1~SW5)
O
VIDEO SW (1~5)
1. Port Description of System Microcomputer : CXP828XX(IC501)
DVR-5070
5
CIRCUIT DESCRIPTION
Port No.
Port Name
I/O
Description
60
4228 RST
O
CS4228 (IC1) RESET
61
LC7821 CE
O
LC7821(TUNER PACK) CHIP ENABLE
62
SM7346 CE
O
SM7346 (IC84) CHIP ENABLE
63
T MUTE
O
TUNER MUTE
64
C/S MUTE
O
CENTER/SURROUND SIGNAL MUTE
65
NC
O
UNUSED
66
W/F MUTE
O
FRONT/SUB WOOER SIGNAL MUTE
67
LIMITER
O
UNUSED
68
CS49326 RST
O
CS49326 DSP IC (IC5) RESET
69~71
DSP (A15~A17)
O
DSP ROM ADDRESS (SEL 1~3)
72~88
SEG (1~17)
O
FIP SEGMENT
89
VDD
-
VDD (DIGITAL VDD)
90,91
SEG18,19
O
FIP SEGMENT
92-100
GRID (11~3)
O
FIP GRID
Port No.
Port Name
I/O
Main
Alternate function
Function
Input
Output
Audio DAC
51
DAC SCLK
O
Over sampling clock
EXT AUD CLOCK
52
DAC PCMOUT0
O
PCM out 0
EXD AUD DATA
53
DAC PCMOUT1
-
PCM out 1 (unused)
EXT AUD REQ
54
DAC PCMOUT2
-
PCM out 2 (unused)
55
DAC PCMCLK
I/O
PCM clock
56
DAC LRCLK
O
Left/Right clock
EXT AUD WCLK
57
SPDIF OUT
O
SPDIF out
48
VDD PCM
-
VDD(+3V3)
49
VSS PCM
-
GND
Clock & Reset
124
RESET
I
Chip reset
122
VDD PLL
-
VDD PLL
123
VSS PLL
-
GND
120
PIX CLK
I
27MHz main clock
PIOs and communication
186
PIO0(0) T STROBE
I/O
PIO0(0)
UART0 data
187
PIO0(1) MOD SW
I/O
PIO0(1)
ATAPI RD
188~191
PIO0(2)~PIO0(5)
O
Unused
PIO0(6) SLIDER SENSOR
192
OPEN/CLOSE
I/O
PIO0(6)
(DRAWER POSITION)
193
PIO0(7) SLIDER IN
(DRAWER CCW/CTRL)
I/O
PIO0(7)
194
PIO1(0) SDA
I/O
PIO1(0)
SSC0 data
(MTSR out/MRST in)
195
PIO1(1) SCL
I/O
PIO1(1)
SSC0 clock
196
PIO1(2) SLIDER OUT
(DRAWER CW CTRL)
I/O
PIO1(2)
PARA DVALID
197
PIO1(3) TXD(JIG)
I/O
PIO1(3)
UART2 TXD
200
PIO1(4) RXD(JIG)
I/O
PIO1(4)
UART2 RXD
201
PIO1(5) FRONT TXDI
I/O
PIO1(5)
PARA SYNC
UART1 RXD
202
TRIGGER IN
I/O
Trigger in for DCU
203
TRIGGER OUT
I/O
Trigger out for DCU
204
PIO2(0) H/P IND
-
Unused
205
PIO2(1) FRONT RXD
I/O
PIO2(1)
PARA SYNC
206
PIO2(2)
-
Unused
207
PIO2(3)
-
Unused
2. Port list sorted by function for MPEG Processor IC(Main IC201)
MC-Service