Kenwood DV-502 Service manual

DVD / CD PLAYER

70%

AUDIO OUTPUT

COMPONENT

VIDEO OUTPUT

S-VIDEO

DIGITAL OUTPUT (PCM/BIT STREAM) OPTICAL

COAXIAL

DV-502/503/DVF-3050 DVF-3050-S/3550/3550-S

SERVICE MANUAL

Front Panel * (A60-)

Button(POWER) * (K27-)

Window * (B10)

Button * (K27-)

Button(PLAY) * (K27-)

Button(SKIP) * (K27-)

Top cover * (A01-)

RCA jack (E63-1227-08)

RCA jack (E63-1226-08)

In compliance with Federal Regulations, following are reproduction of labels on, or inside the porduct relating to laser product safety.

KENWOOD-Crop. 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.

RCA jack * (E63-)

RCA jack (E63-1191-08)

AC power cord bushing (J42-0350-08)

AC power cord * (E30-)

* Refer to parts list on page 18 .

Caution : No connection of ground line if disassemble

the unit. Please connect the ground line on rear panel, PCBs, Chassis and some others.

DV-502/503/DVF-3050/3550

CONTENTS / ACCESSORIES / CAUTIONS

Contents

CONTENTS / ACCESSORIES / CAUTIONS............. 2

DISASSEMBLY FOR REPAIR....................................3

BLOCK DIAGRAM ......................................................4

CIRCUIT DESCRIPTION ............................................5

WIRING DIAGRAM ...................................................10

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.

Accessories

PC BOARD .............................................................. 11

SCHEMATIC DIAGRAM .......................................... 15

EXPLODED VIEW ....................................................21

PARTS LIST..............................................................22

SPECIFICATIONS ......................................Back cover

Cord RCA 1p (E30-7235-08)

Batteries (R03/AAA) (2)

Cord RCA 3p (E30-2990-08)

Remote control unit (1) (A70-1532-08)

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.

*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.)

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.

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.

1 In POWER ON condition, keep the 7 (STOP) key and the ¡

(Search) 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 . 101 . 06:14

3 Press the ON/OFF key to go to Power OFF. 4 When Power ON is performed with the ON/OFF key, the set-

tings become the default factory settings.

¶ Please note that resetting the microprocessor clears the con-

tents stored in, it returns the microprocessor to the condition when it left the factory.

DISASSEMBLY FOR REPAIR

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)

How to Remove Disc in unit

Slide the lever of the mechanism from bottom side as figure if you can't get the disc on the tray.

DV-502/503/DVF-3050/3550

CAUTIONS

ADDR F-WE

F-RESET

F-DE

D-RAS0-

ADDR

RDNOTWR

DATA

D-CAS0D-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

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

M29F400T-90N1

HY57V651610BLTC-8

SDRAM-64MBIT

IC301

F/E & MECHA

TVM MECHA

SMPS

IC901

UPD16311

DAC

PCM1748E

L.P.F

BA4560

IC802-A-A

MIXED

MUTE

VIDEO

JK803-A

S-VIDEO

JK701

RCA 3V

COAXIAL

BUFFER

OPTICAL

IC501

74HCU04

M24CO2

EEPROM

IC202

SCART PART

RCA PART

HNV-06SS74

125MHz

L.P.F

MIXED

R-CH

L-CH

BUFFER

& B.N.F.

BUFFER

& B.N.F.

BUFFER

& B.N.F.

BUFFER

& B.N.F.

BUFFER

& B.N.F.

BUFFER

CVBS-OUT

Y-OUT

C-OUT

R(Cr)-OUT

B(Cb)-OUT

G(Y)-OUT

CVBS-

TV SCART

JK804

ONLY

(E,T) TYPE

EXCEPT

DIGITAL OUT

MPEG

DV-502/503,DVF-3050

DV-502/503/DVF-3050/3550

BLOCK DIAGRAM

DV-502/503/DVF-3050/3550

CIRCUIT DESCRIPTION

1. MPEG: STI5519

Port No. Port Name I/O

Audio DAC

51 DAC SCLK O Over sampling clock EXT AUD CLOCK 52 DAC PCMOUT0 O PCM out 0 EXT 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) VFD STB I/O PIO0(2) ATAPI WR 189 PIO0(3) VFD CLK I/O PIO0(3) 190 PIO0(4) VFD DATA OUT I/O PIO0(4) 191 PIO0(5) VFD DATA IN I/O PIO0(5)

PIO0(6) SLIDER SENSOR

192 OPEN/CLOSE I/O PIO0(6)

(DRAWER POSITION)

193

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

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 I/O Unused 205 PIO2(1) FRONT RXD I/O Unused 206 PIO2(2) MIC IN - Unused 207 PIO3(8) MIC OUT - Unused 208 PIO2(4) AUDIO MUTE I/O Audio mute

10 PIO3(4) IR REMOCON I/O PIO3(4) PARA DATA(4)/CAPTURE IN1 UART1 RTS(RTS1) 11 PIO3(5) I/O Unused PARA DATA(5)/CAPTURE IN2 UART2 RTS(RTS2)

12 PIO3(6) I/O Unused

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 PARA DATA(3)/CAPTURE IN0

I/O PIO0(7)

I/O PIO1(2) PARA DVALID

Main Alternate function

Function Input Output

PARA DATA(6)/UART1 CTS (CTS1)

Note: Port list sorted by function for MPEG IC

COMP OUT1

DV-502/503/DVF-3050/3550

CIRCUIT DESCRIPTION

Port No. Port Name I/O

13 PIO3(7) DVD RESET I/O PIO3(7)

39~46 PIO4(0~7) I/O PIO4(0~7) YC(0~7)

Reserved

20 B WCLK I/O Unused 21 B V4 I/O Unused

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 READ NOT WRITE 128 CPU BE(0) O BYTE 0 ENABLE 129 CPU BE(1) O BYTE 1 ENABLE 139 CPU CAS0 O DRAM CAS0 140 CPU CAS1 O DRAM 135 CPU CE(0) O DRAM RAS0 134 CPU CE(1) O Chip Sel. BANK1 133 CPU CE(2) O Chip Sel. BANK2 132 CPU CE(3) O Chip Sel. BANK3 118 CPU PDR 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

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

Main Alternate function

Function Input Output

PARA DATA(7)/UART2 CTS (CTS2)

COPM OUT0

DV-502/503/DVF-3050/3550

CIRCUIT DESCRIPTION

Port No. Port Name I/O

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 SMI DATA(0~15) I/O Data bus SDRAM

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

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 VDD2 5 - 2.5V Power supply

171 198

5,15,38,50

65 83,96 108,121,137 VSS - GND 150,160,172

185,199

VDD3 3 - 3.3V Power supply

DQ MASK EN LOW, UP

Main Alternate function

Function Input Output

2-1 VFO controller : uPD16311(IC901)

Pin No. Pin Name I/O Description

6 DIN I Inputs serial data at rising edge of shift clock,starting from lower bit.

5 DOUT O

9 STB - Strobe pin. 8 CLK I Reads serial data at rising edge, and output data at falling edge.

52 OSC - Connect resistor for determining oscillation frequency to this pin. 15~26 S1/KS1~S12/KS12 O Segment output pins (Dual function as key source). 44~39 G1~G6 O Grid output pins. 27~32 S13/G16~S18/G11

35,36 S19/G11,S20/G19 50~46 LED1~LED5 O Unused. 10~13 KEY1~KEY4 I Data input to these pins is latched at end of display cycle.

1~4 NC - Unused.

14,33,45 VDD - +5V power supply.

51 VSS - Connect this pin to GND of system. 34 VEE - -35V power supply.

7 NC - Unused.

Output serial data at falling edge of shift clock,starting from lower bit. This is N-ch open-drain output pin.

O These pins are selectable for segment or grid output.

+ 16 hidden pages