How it Works
Kenwood
Loading...
DVFR-4050-S
Service manual
23 pgs1.65 Mb0
Table of contents
Loading...

Kenwood DVFR-4050-S Service manual

DVD / CD PLAYER
70%
DV-505/DVF-R4050/-S
SERVICE MANUAL
© 2001-10 PRINTED IN KOREA B51-5758-00 (K/K) 3445
Button(POWER) * (K27-)
Top cover * (A01-)
Front panel * (A60-)
DIN socket (E68-0018-08)
Window * (B10-)
RCA jack (E63-1244-08)
Button * (K27-)
Button * (K27-)
Button * (K27-)
AC power cord bushing (J42-0350-08)
RCA jack (E63-1192-08)
In compliance with Federal Regulations, following are repro­duction of labels on, or inside the product relating to laser product safety.
Caution : No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
RCA jack (E63-1227-08)
AC power cord * (E30-)
* Refer to parts list on page 19 .
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.
DV-505/DVF-4050/-S
2

CONTENTS / ACCESSORIES / CAUTIONS

CONTENTS / ACCESSORIES / CAUTIONS............. 2
DISASSEMBLY FOR REPAIR....................................3
BLOCK DIAGRAM ......................................................4
WIRING DIAGRAM .....................................................5
PC BOARD..............................................................10
SCHEMATIC DIAGRAM...........................................14
EXPLODED VIEW....................................................21
PARTS LIST.............................................................23
SPECIFICATIONS......................................Back cover

Contents

Cord RCA 1p (E30-7235-08)
Cord RCA 3p (E30-2990-08)
Remote control unit (1) (A70-1570-08)
Batteries (R03/AAA) (2)
*AC plug adaptor (1) (E03-0115-05)
* Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary.)
The marking is located on the rear panel and says that the component uses laser beams that have been clas­sified as Class 1. It means that the unit is utilizing laser beams that are of a weaker class. There is no danger of hazardous radiation outside the unit.
CLASS 1
LASER PRODUCT
The marking of products using lasers
(Except for some areas)
Operation to reset
The microprocessor may fall into malfunction (impossibility to oper­ate erroneous display, etc.) when the power cord is unplugged while power is ON or due to an external factor. In this case, execute the following procedure to reset the microprocessor and return it to normal condition.
÷Please note that resetting the microprocessor clears the
contents stored in, it returns the microprocessor to the condi­tion when it left the factory.
1 In
POWER ON
condition, keep the
DISC 3
key and the
44
44
4
(Skip) key pressed at the same time.
2 When both keys are pressed, the region code of the unit, the
software version, etc. will be displayed on the display. (When nothing is done, the display of this information continues.) Example: 71 . 16 . 06:14
3 Press the
DISC 4
key and the
44
44
4 key at the same time.
"BYE" will be shown on the display.
4 Press the
ON/OFF
key to go to Power OFF.
5 When Power ON is performed with the
ON/OFF
key, the
settings become the default factory settings.

Accessories

Cautions

Note related to transportation and movement
Before transporting or moving this unit, carry out the follow­ing operations.
1. Set the POWER key to ON without loading a disc.
2. Wait a few seconds and verify that the display shown appears.
3. Set the POWER key to OFF.
Beware of condensation
When the difference between the internal temperature of the unit and external atmosphere is large, dew (mist) may be produced on the internal parts of the unit. In such a case, turn the unit ON and leave it for a few hours until the condensation has dried up.
Be especially careful in the following conditions:
When the unit is brought into a place where there is a large differ­ence in temperature between the previous location, when the humidity of the listening room is high, etc.
Attention
Please contact our KENWOOD Service Department in your
side if you want the service information; Circuit Description.
Full Described Parts list and so. Information is available to
you by internet from us.
DV-505/DVF-4050/-S
1
3
2
4
3
4
1
2

DISASSEMBLY FOR REPAIR

1. How to open the tray if it does not come out. (Fig. 1)
1. Turn the gear ccw in the direction of the arrow in the
drawing through the hole on loading chassis bottom.
2. Pull out the tray frontward by hand when it comes just out.
2. How to Remove the Tray (Fig. 2)
1. Remove the front panel, front chassis, power supply and
the left mecha. frame.
2. Pull out the tray frontward (1) to match the dent of tray
(2) to the protrusions of the mecha. base (3).
3. Remove the tray upward (4).
Fig. 2
3. How to assemble the Tray (Fig. 3,4)
1. Adjust the position of the plastic cam lifter (1) and main
gear (2) in the drawing (1 reach the lowest position.
2. Attach the tray in the direction (3, 4) of the arrow in the
drawing.
3. Push the tray backward.
so that the traverse unit will
Fig. 1
Fig. 3
Fig. 4
3
ADDR
F-WE
F-RESET
F-DE
D-RAS0-
ADDR
RDNOTWR
DATA
D-CAS0-
D-CAS1-
+3.3V DIGITAL VCC
F/E SDATA
EXIT-DATA
+3.3V-RESET
F/E SCL
EXIT-BCLK
EXIT-DATAVALID
EXT-PSTART/ERROR
+12V MOTOR VCC
+8V MOTOR VCC
+5V DIGITAL VCC
SLIDER-IN(DRAWER-CCW-CTRL)
SLIDER-OUT(DRAWER-CW-CTRL)
SLIDER-OPEN/CLOSE(POWER-POSITION-P1)
+12V ANALOG VCC +8V ANALOG VCC
+5V DIGITAL VCC
-8V ANALOG VCC
+12V MOTOR VCC 5V FRONT
+8V MOTOR VCC
+3.3V DIGITAL VCC
: AC240V~ 50Hz : AC230V~ 50Hz
(X)
(T,E)
: AC110-120V/220-240V~
: AC120V 60Hz
50/60Hz
(K,P) (Y,M)
F-CE
F-OE(DRAM OE)
-27V FL AC
FL AC
+5VS
STBY ON/OFF CNTL
IR REMOCON
+5.6VS
VFD DATA OUT
VFD STB
VFD DATA IN
PCM1748E-DATA
LRCLK
BCK
PCMCLK
PCM1748E-CS
PCM1748E-CLK
AUDIO-MUTE
CVBS-OUT
Y-OUT
R(Cr)-OUT
C-OUT
B(Cb)-OUT
G(Y)-OUT
9
10
8
6
7
SPDIF
PIXCLK-27MHz
SCL
SDA
VIDEO-MUTE
VFD CLK
DATA
IRQ2
POWER CTL
L AUDIO
R AUDIO
GND
BLUE-OUT
GREEN-OUT
RED-OUT
CVBS-OUT
L-CH OUT
R-CH OUT
IC201
STI5519
FLASH MEMORY
IC401
8MBIT
SST39VF800505
HY57V651620
SDRAM-64MBIT
IC301
F/E & MECHA
TVM MECHA
SMPS
IC901
CXP825P400-1
DAC
PCM1748KE
L.P.F
BA4560
IC303-A-A
MIXED
MUTE
VIDEO
JK803-A
S-VIDEO
JK803-B
JK701
Cr
Cb
Y
RCA 3V
COAXIAL
JK801
IC805
BUFFER
OPTICAL
IC501
74HCU04
M24C02
EEPROM
IC202
SCART PART
RCA PART
HNV-06SS75
FL
125MHz
L.P.F
MIXED
R-CH
L-CH
TR
BUFFER
& B.N.F.
& B.N.F.
BUFFER
TR
& B.N.F.
BUFFER
TR
& B.N.F.
BUFFER
TR
& B.N.F.
BUFFER
TR
& B.N.F.
BUFFER
TR
CVBS-OUT
Y-OUT
C-OUT
R(Cr)-OUT
B(Cb)-OUT
G(Y)-OUT
CVBS-
TV SCART
JK804
ONLY
(E,T) TYPE
(E,T) TYPE
EXCEPT
DIGITAL OUT
MPEG
DV-505,DVF-R4050
4
DV-505/DVF-4050/-S

BLOCK DIAGRAM

DV-505/DVF-4050/-S

CIRCUIT DESCRIPTION

Port list sorted by function for MPEG IC(Main IC201)

Port No. Port Name I/O Main Function
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 PIO0(2) O Rotary motor (+) 189 PIO0(3) O Rotary sen 190 PIO0(4) O Disc sen
191
192
193
194 PIO1(0) SDA I/O PIO1(0)
195 PIO1(1) SCL I/O PIO1(1) SSC0 clock
196
197 PIO1(3) TXD(JIG) I/O PIO1(3) UART2 TXD 200 PIO0(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 208 PIO2(4) AUDIO MUTE I/O Audio mute
10 PIO3(4) IR REMOCON I/O Unused
11 PIO3(5) I/O Unused
PIO0(5) SLIDER SENSOR OPEN/CLOSE (CLOSE POSITION) PIO0(6) SLIDER SENSOR OPEN/ CLOSE (DRAWER POSITION) PIO0(7) SLIDER IN (DRAWER CCW/CTRL)
PIO1(2) SLIDER OUT (DRAWER CW/CTRL)
1 PIO2(5) RGB SEL(BLANK) I/O RGB sel. (blank) 2 PIO2(6) VIDEO MUTE I/O Video mute 3 PIO2(7) 16: 9 INDICATOR I/O 16 : 9 indicator 6 PIO3(0) SCART H(TV/AUX) I/O PIO3(0) PARA DATA(0) 7 PIO3(1) POWER CTL I/O PIO3(1) PARA DATA(1) 8 PIO3(2) I/O Unused PARA DATA(2)
9 PIO3(3) I/O Unused
I/O PIO0(5)
I/O PIO0(6)
I/O PIO0(7)
SSC0 data (MTSR out/MRST in)
I/O PIO1(2) PARA DVALID
PARA DATA(3)/ CAPTURE IN0
PARA DATA(5)/ CAPTURE IN2
Alternate function
Input Output
UART2 RTS(RTS2)
5
DV-505/DVF-4050/-S
CIRCUIT DESCRIPTION
Port No. Port Name I/O Main Function
12 PIO3(6) I/O Unused
13 PIO3(7) DVD RESET I/O PIO3(7)
39 PIO4(0)HP MUTE - Unused 40 PIO4(1) - Unused 41 PIO4(2) - Unused 42 PIO4(3) DAC RESET - Unused 43 PIO4(4) PLL CS - Unused 44 PIO4(5) DAC CLOCK O DAC clock 45 PIO4(6) DAC DATA O DAC data 46 PIO4(7) DAC CS I/O PIO4(0~7) YC(0~7)
Reserved
20 B WCLK I/O Unused 21 B V4 I/O Connected to GND
22 NRSS OUT I/O Unused 103 ADC SCLK I/O Unused 104 ADC LRCK I/O Unused 105 ADC DATA I/O Unused 106 ADC PCMCLK O Unused
EMI Interface
161~170 CPU ADR(1~10) O ADR(1~10) 173~183 CPU ADR(11~21) O ADR(11~21) 141~148 CPU DATA(0~7) I/O DATA(0~7) 151~158 CPU DATA(8~15) I/O DATA(8~15)
138 CPU RAS1 I/O Unused 131 CPU WAIT I Connected to GND 130 CPU RW O Unused 128 CPU BE(0) O BYTE 0 ENABLE 129 CPU BE(1) O BYTE 1 ENABLE 139 CPU CAS0 O Unused 140 CPU CAS1 O Unused 135 CPU CE(0) O Unused 134 CPU CE(1) O Unused 133 CPU CE(2) O Chip Sel. BANK2 132 CPU CE(3) O Chip Sel. BANK3 118 CPU PRO CLK O SDRAM clock 117 CPU OE I/O Output enable
Interrupt
127 IRQ(0) I Unused 126 IRQ(1) I Unused 125 IRQ(2) I IRQ(2) (MD IRQ)
Timers
116 PWM0 I/O Unused HSYNC 115 PWM1 I/O Pulse width modula o Boot from ROM3 114 PWM2 I/O Unused VSYNC
JTAG
113 TCK I Test clock 112 TDI I Test data in 111 TDO O Test data out 110 TMS I Test mode select 109 TRST4 I Test reset
Front-end
16 B DATA I 12S data SER Data
17 B BCLK I 12S bit clock SER BCLK
6
Alternate function
Input Output
PARA DATA(6)/ UART1 CTS(CTS1) PARA DATA(7)/ UART2 CTS(CTS2)
COMP OUT1
COMP OUT0
DV-505/DVF-4050/-S
CIRCUIT DESCRIPTION
Port No. Port Name I/O Main Function
18 B FLAG I 12S error flag DVD SER VALID 19 B SYNC I 12S selector/ABS time SER SYNC
Video DAC
27,26,25 R/G/B (OUT) O R/G/B output
32~34 Y/C/CV (OUT) O Y/C/CV output
29 I REF RG I I REF DAC RGB 28 V REF RG I V REF DAC RGB 36 I REF YCC I I REF DAC YCC 35 V REF YCC I Y REF DAC YCC 23 VDD RGB - YDDA RGB = 2.5V 24 VSS RGB - GND 30 VDD YCC - YDDA YCC = 2.5V 31 VSS YCC - GND
Shared memory interface
69~66 SMI ADR(0~3) O Address bus SDRAM 58~63 SMI ADR(4~9) O Address bus SDRAM 70~73 SMI ADR(10~13) O Address bus SDRAM 84~93
97~102
74,75 SMI CS(0,1) O Chip select bank 0,1
76 SMI RAS O RAS SDRAM 77 SMI CAS O CAS SDRAM 78 SMI WE O SDRAM write enable
79,80 SMI DQML, U O DQ MASK EN LOW, UP
82 SMI CLKIN I SDRAM clock in 95 SMI CLKOUT O SDRAM clock out
Power supply
4,47,81,107
136,159,184
14,37,64,94 119,149,171,198 5,15,38,50,65,83
96,108,121,137 VSS - GND
150,160,172,185,199
SMI DATA(0~15) I/O Data bus SDRAM
VDD3.3 - 3.3V Power supply
VDD2.5 - 2.5V Power supply
Alternate function
Input Output

D/A Converter : PCM1748(IC302)

Pin No. Pin Name I/O Description
1 BCK I Audio data bit clock input. 2 DATA I Audio data digital input. 3 LRCK I Audio data latch enable input. 4 DGND - Digital ground. 5 VDD - Digital power supply (+3.3v). 6 VCC - Analog power supply (+5v). 7 VOUTL O Analog output for L-channel. 8 VOUTR O Analog output for R-channel.
9 AGND - Analog ground. 10 VCOM - Common voltage decoupling. 11 ZEROR O Zero flag output for R-channel. 12 ZEROL O Zero flag output for L-channel. 13 MD I Mode control data input. 14 MC I Mode control clock input. 15 ML I Mode control latch input. 16 SCK I System clock input
7
Loading...
+ 16 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use