Kenwood RX-DNV500 Service Manual

617

679

626
J1

625

625
680

624

615

623

677
609

CD

CD

6

TAPE

2 3

MUTE

TUNER TAPE MUTE

ACTIVE

TUNER/BAND

STOP

ON/STANDBY

STANDBY/TIMER

VOLUME

STEREO

0

PHONES

PUSH OPEN

612

J2

613

611

J1

J1

J5

671

640

+

-

+

-

MONITOR

OUT

REC OUT PLAY IN PLAY IN

VIDEO 1

VIDEO

AUDIO

REC
OUT

FRONT

SPEAKERS

(6 - 16Ω)

SUBWOOFER

(4 - 16Ω)

PLAY INPLAY

IN

FM

75Ω

GND AM

VIDEO 1

AC 110–
120V

VIDEO 2

VIDEO 2

L

R

LR

ANTENNA

DIGITAL

OUT

OPTICAL

AC 220–
240V

AC 110–
120V

AC 220–
240V

HIFI MINI COMPONENT SYSTEM

RXD-NV500/NV600

SERVICE MANUAL

(NV-500/600)

Panel *
(A60-)

Indicator
(B12-0366-13)

Knob
(K29-7573-04)

Knob
(K29-7567-04)

Panel
(A29-1056-13)

Indicator
(B12-0367-04)

Phone jack
(E11-0282-05)

© 1999-7/B51-5559-00 (K/K) 3632

Indicator
(B12-0366-13)

Knob
(K29-7578-03)

Escutcheon
(B07-2455-02)

Cassette lid
(A53-2138-02)

Escutcheon
(B07-2454-02)

Top plate
(A52-0365-02)

Oscillating module
(W02-1114-15)

Lock terminal board
(E70-0053-05)

Side plate R
(A50-1331-11)

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

Phono jack
(E63-0052-15)

Phono jack
(E63-1090-05)

Lock terminal board
(E70-0052-05)

KENWOOD-Corp. certifies this equipment conforms to DHHS

* Refer to parts list on page 35.

Illust is RXD-NV600.

Side plate L
(A50-1330-11)

Power cord bushing
(J42-0083-05)

AC power cord *
(E30-)

Regulations No. 21 CFR 1040. 10, Chapter 1, Subchapter J.

DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.

RXD-NV500/NV600

FM indoor antenna (1)
(T90-0836-05)

Loop antenna (1)
(T90-0837-05)

Remote control unit (1)**
(A70-)

Batteries (R6/AA) (6)

*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.)

** Refer to part list.

Operation to reset

The microcomputer may fall into malfunction (impos­sibility to operate, erroneous display, etc.) when the
power cord is unplugged while unit is ON or due to
an external factor. In this case, execute the following
procedure to reset the microcomputer and return it
to normal condition.

Unplug the power cord from the power outlet then,
while holding the CD Open close (

0

) key de­pressed, plug the power cord again.
After some time, the power will be switched off and
return will be made to the initial status.

÷ Please note that resetting the microcomputer clears the

contents stored in and it returns to condition when it left
the factory.

Note related to transportation and movement

Before transporting or moving this unit, carry out the
following operations.

1 Select the CD input

2 Press the 0 key and take out the CD.

3 Ensure that "No Disc" is displayed.
4 Wait for a few seconds, then set the power

OFF.

CONTENTS / ACCESSORIES / CAUTIONS

Contents

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

CONTROLS................................................................3

DISASSEMBLY FOR REPAIR....................................4

BLOCK DIAGRAM......................................................5

CIRCUIT DESCRIPTION............................................6

ADJUSTMENT..........................................................11

Accessories

WIRING DIAGRAM...................................................12

PC BOARD .............................................................. 13

SCHEMATIC DIAGRAM.......................................... 19

EXPLODED VIEW ....................................................33

PARTS LIST..............................................................35

SPECIFICATIONS....................................................44

System configuration

SYSTEM RECEIVER SPEAKER

NV-500 RXD-NV500 LS-NV500
NV-600 RXD-NV600 LS-NV600S

Cautions

22

CD

6

TUNER
/BAND

0

RXD-NV500/NV600

$ Selector display/icon

Shows the operations selected
with the remote control.

% Menu/recording, editing selec-

tion display

Shows the selection menu, type
of recording or editing, etc.

^ Input selection display

Shows the status selected on the
main unit or the input function
selected with the remote control

unit.

& VOLUME CONTROL keys
* CLOCK/LIGHT key
( CONFIRM/DEMO key
) HOME key
¡ MUTE key
™ P.CALL/4 , ¢ keys

£ Stop (7) key
¢ INPUT key
∞ ¶ REC key

§ DIRECTION key
¶ SET key

• ENTER key
ª CURSOR keys
º 6/BAND key
⁄ Display
¤ IR POWER (

) key
(for U.S.A and CANADA)
IR ON/STANDBY (

) key

(for other countries)

*The displayed information is variable depending on areas.

Operation

÷ When pressing more than one remote control keys suc-

cessively, press the keys securely by leaving an interval
of 1 second or more between keys.

After plugging the power cord of this unit, press
the key of the remote control unit to turn the
system ON. When the system is turned ON, press
the key of the function to be operated.

Operating range
(approx.)

Remote sensor

Remote control sig-

nal transmitter

6 m

6 m

When the remote control unit is attached to the
main unit, the power can be switched ON/OFF
only using the POWER (

) key on the main unit.

To light the back light:

(The back light is permanently on when the remote control unit is
attached to the main unit with power on.)

Press and hold the CLOCK/LIGHT key for
about 2 seconds.

When the remote control unit is detached from
the main unit, it is recommended to leave the
display back light off in normal condition in
order to save the battery power.

Model : GRC-NV501 (for U.S.A. and Canada)
Model : GRC-NV502 (for Europe and U.K.)
Model : GRC-NV503 (for other countries)
Infrared ray system

CONTROLS

TV
VIDEO1
VIDEO2

CD

TUNER

TAPE

FUNCTION

%$

^

BAND

6

7

⁄


¢


¡


&

*
(
)

VOLUME CONTROL

CLOCK

MUTE

/LIGHT

CONFIRM

/DEMO

HOME

¤


IR POWER

IR ON/STANDBY

4

1

¤


– P.CALL –

¡ ™ £

INPUT

º


CURSOR

SET ENTER

DIRECTION

¶REC

∞

¢

CLOCK
/LIGHT

ª


•

¶



§




30°

30°

30°

30°

3

RXD-NV500/NV600

X07
(A/7)

X07
(D/7)

2

X29
(B/3)

X29
(A/3)

X29
(C/3)

Insulator

x12

2

1

2

2

3

4

DISASSEMBLY FOR REPAIR

Electric check of the main PCB

1) Remove X29(A/3),X29(B/3), and X07(A/7) in order.
(Remove the fan motor assy ,then assemble it on the
heatsink

2) Connect GND between each PCB and the rear panel
with 4 alligator clip wires 2.

1.)

The method that takes out a tray.

1. Plug thin driver etc.to a square hole. And, press a rack gear
in the direction of an arrow(1).

2. Press the back side of a tray toward an arrow(2) with a fin­ger. At this time, draw a tray from a front side because a
tray appears on the side of a front.

Remove CD tray

Take notice of the hooks with the
CD tray panel, then remove the
CD tray panel3.

Disassembly the remocon
holder

Take notice of the spring position,
then disassemble the remocon
holder4.

1

2

4

CLK

PLL-CLK

PLL-CE

PLL-DO

SD
ST

PLL-DATA

S-LEVEL

DET-OUT

DE-EMPH

POWER

S.W.MUTE

H.P. DETECT

H.P. RELAY

ATT

MUTE

SP RELAY

PROTECTION

REM TXD

REM RXD

REM SW

LATCH

DATA

CLK

READY

V.DOLBY ON/OFF

MON

R/P

RDS-DATA

RDS-CLK

+

+

+

+

+

+

+

+

LATCH

Lch-OUT

Rch-OUT

+12V

+12V

REC

PB AMP

AMP

OUT

(REC=H)

4.332MHz

RDS IC

+5V

D5V

33.8688MHz

D5V 6.2V

INPUT ATT.

MAIN VOL.

REC OUT VOL.

7.5V

TUNER

DECK

CD

MD

12V

C12,C34 OFF

C55

C112

+

RST

CD DSP
RF-AMP

RF

SE

FE
TE

FFDR
FRDR
TFDR
TRDR

MDP

SRDR

SFDR

SENSE

SCOR

SQSO

SCLK

CLK

XLAT

CD RESET

SQCK

DATA

Lch-OUT

Rch-OUT

DOUT

XTA1

XTA0

(16.9344MHz)

5V

DATA

OPEN SW

TRAY R

TRAY F

CLOSE SW

SLT SW

MD RST

MD PROTECTION(X33)

MD CE

MD TXD

MD RXD

V.CONT(SEL)

V.MUTE1(MONITOR)

V.MUTE2(VIDEO OUT)

XIN

XOUT

XCIN

XCOUT

CD DC POWER

(10MHz)

(32.768KHz)

MAIN CLOCK

TIMMER CLOCK

A.MUTE

PROTECTION

RST

CE

UART1

UART2

DSTB

MD DATA

LOAD SW

5.0V

X1

X2

(5MHz)

DSCK

SERCH

KDATA

PDOWN

RESET

MD-ST

3.3V

MD PLAY

MD REC(ANALOG)

-HB/-LB

+HB/+LB

MUTE -10db A TT.

(600-700mA)

+5.6V

DOLBY

RXD-NV500/NV550MD/NV600

R/P

ERASE

TONE

EX.BASS

SOUND

-4ab

OSC

BIAS

C11,12,L1,2

BIAS
TRAP

MPX

NR SYSTEM

DOLBY B

HA12136A

BA3126N

HA12219NT

24.5V/6

K2

OTHER ch

S.W.MUTE

S.W. PRE-OUT

NV500/550MD ONLY

H.P.

Rch

Lch

SWch

NV600 ONLY

CXA1571M
(RF-AMP)

BA5979S
(4ch BTL-DRIVER)

MOTOR

TA8409S
LOADING

DRIVER

CXD2587Q

(DSP/DAC/CD-TEXT)

+5V

(LEVEL SHIFT)

TC74HCT7007AF

MD MECHA
MDM-98A

CONTROL u-COM

MD MECHA

UPD78058GC

KEY

LED CONTROL

REMOCON INTERFACE

D104

D103

D102

D101

D109-112

+12

-12

+9V

-7.5V

+7.5V

+5

(X07)

A1

TUNER PACK

FM75

AM

ANT

DECK

L5

(X28)

DECK

MECHA

IC3

IC1Q11

IC2

L3,L4

(X29)

IC2

IC7

CXD2718AQ

BU4052BCF

IC6

M62492FP

IC5

IC12

VIDEO1

(AUDIO)

OUT

IN

VIDEO2 IN

IC4

IC3

TC9215AP

NV550MD
ONLY

NV600
ONLY

IC301

IC302

IC304

FE-BIAS

(FCS,TRK,SLD,

SPD-DRIVE)

CD MECHA

CDM-30

DIGITAL

IC4

(X07)

D.OUT

(OPTICAL)

MONITOR

(VISUAL)

VIDEO2 IN

VIDEO1

OUT

IN

ONLY

NV-500/600

MAIN u-COM

M30622MC

IC2

IC1

IC3

(X33)

NV-550MD
ONLY

Q14

(SP OUTPUT)

RXD-NV500

RXD-NV550MD

RXD-NV600(2ch)

SW OUTPUT

Q32

(X07)

Q1Q3

IC1(2/2)

K4

Q15

Q12 Q11

T1

Q109

Q39

+6.2V

+HB

GND

-HB

+LB

GND

-LB

VIDEO SEL

TUNER

DECK

H.P. AMP

OP.AMP

SEL

V.DOLBY

SEL.

E.VOL

V.DOLBY

AVDD

E.VOL

H.P.AMP
OP.AMP

SEL

MUTE

VIDEO SEL

REMOCON
TRANSMIT

CD MECHA DRIVER

Q105

Q103

Q101

IC11

H.P. RELAY

SP RELAY

+5V
+5.6V

+6.5/5V

+6V

DVDD

REM VDD

MD MECHA.DIGITAL

MD ANALOG

CD BTL-DRIVER

Q3

Q5,6

CONTROL

REMOTE

POWER
TRANSFORMER

K1

u-COM +5.6V

VIDEO 1,2

MAX
INITIAL
MINI0-12

+3

DISPLAY

0dB

-30dB

-6dB

ATT.

INPUT ATT .

POWER
RELAY

IC303

IC9

(X28)

1.8V/3.3K

24.5V/6

15.5V/8

17.9V/4

FTC

EIAT

FTC

65Hz,10%

AMP

300mV/470

OUTPUT

300mV/47K

INPUT

1Vp-p/75

IN,OUT

IC202,203

IC201

IC1(1/2)

IC1

: NV600 ONLY

: NV500/NV550MD

Q33

(X28)

5

BLOCK DIAGRAM

RXD-NV500/NV600

RXD-NV500/NV600

u-COM

M30622MC-709FP

SINGLE CD MECHA.
CDM_3.0(2)

CD DSP IC
CDX2587Q

AUTO REVERS
CASSETTE MECHA.
ADR-2176TR

MECHA
CONTROL

DECK CIRCUIT
HA12219NT
HA12136A

MD MECHA. uCOM
UPD78058

TUNER CIRCUIT
PLL IC
LC72131

SELECTOR-IC
M62492FP

DOLBY-IC
CXD2718Q

EXPANDER IC
NJU3713D

A/D KEY INPUT

DESTINATION
DISTINCTION

EXPANDER IC
BU2090

DISPLAY LED

STANDBY/TIMER

LED

MUT CONTROL

RDS IC
SAA6579T

EXPANDER IC
NJU3711D

FAN CIRCUIT

AUDIO OUTPUT

VISUAL
CIRCUIT

EXPANDER IC
NJU3711D

REMOCON SEL/PAR.
CHANGEOVER
UPD17215GT

REMOCON
CIRCUIT

(X28)IC1

(X28)IC101

(X29)IC303

(X28)IC9

(X28)IC201

(X28)

(X28)

(X28)

(X07)Q21~23

(X33)IC1

(X28)IC203

(X28)IC202

(X28)

(X07)

(X07)IC3

(X29)IC5

(X29)IC7

(X29)IC2

(X07)A1

CIRCUIT DESCRIPTION

1. Initialization

1) Setting of initial conditions
Whole pressing the CD EJECT key, put the plug into an

AC power outlet.

2) Initial items and back up data

ITEM DATA

POWER OFF
VOLUME 10
BALANCE CENTER
BASS 0
TREBLE 0

AMP BASS BOOST OFF

INPUT SEL TUNER
V1 INPUT 0
V2 INPUT 0
SW LEVEL 3
BAND FM
LAST f LOWEST

TUNER FREQUENCY

LAST Pch __
AUTO/MONO AUTO
Pch TESTf

ITEM DATA

CLOCK AM 12:00

PROG ON AM 12:00
CLOCK PROG OFF AM 12:00
TIMER SOURCE TUNER

Pch 1

EXE OFF

OTT OFF AM 7:00

✜SLEEP OFF

DIRECTION FORWARD
DECK RVS MODE REVERS

DOLBY NR OFF

✜ACTIVE MODE STOP

✜PLAY MODE TRACK

✜REPEAT OFF
CD ✜RANDOM OFF

✜ACTIVE MODE STOP

✜TIME SINGLE

✜ : Non back up

2. Main microprocessor M30622MC-709FP (X29: IC9)

2-1 Microprocessor periphery block diagram

6

KEY1
90PIN

MUTE Tape Tuner CD POWER KEY OFF

Play Band play

KEY2
91PIN

CD Vol Up Vol Down All Stop _ __ KEY OFF

Open/Close

RXD-NV500/NV600

CIRCUIT DESCRIPTION

2-2. KEY MATRIX

✜ Vref: 5V

2-3 Pin description

Pin No. Name I/O Connect Description

1 V_DATA O Dolby pro logic surround decoder IC CXD2724Q data output
2 V_CLK O Dolby pro logic surround decoder IC CXD2724Q clock output
3 CD_DC_OFF O PU CD DSP power control H = OFF ( POWER ON) L = ON ( POWER OFF)
4 CD_MON O PD CD MON output H = ON L = OFF
5 SCLK O PU CD SENSE DATA read clock output CXD2587Q
6 RDS_DATA I PU RDS data input H = 1 L = 0
7 CE I PD Electricity failure detect input H = AC ON L = AC OFF
8 BYTE I PD Connect GND

9 CNVSS I GND Connect GND
10 XCIN I Timer clock (32.768kHz)
11 XCOUT O Timer clock (32.769kHz)
12 RESET I PU Ucom reset H = NORMAL L = RESET
13 XOUT O Main clock(10mhz)
14 VSS I GND GND
15 XIN I Main clock(10mhz)
16 +5V I VDD Power supply +5V
17 NMI I PU NO USED connect +5V(VCC)
18 REMOCON I PU Remocon input H î L to thrust

19 RDS_CLK I PD RDS clock input LîH to thrust
20 SCOR I PD Sub cord synchronism signal (CXD2587Q) LîH to thrust
21 SENSE I PU CD SENSE input CXD2587Q H = 1 L = 0
22 CD_CLK O PU CD DSP clock output CXD2587Q
23 XLAT O PU CD DSP latch output CXD2587Q L = LATCH
24 CD_DATA O PU CD DSP data output CXD2587Q H = 1 L = 0
25 CD_CLOSE_M O CD tray motor close output H = ON L = OFF
26 CD_OPEN_M O CD tray motor open output H = ON L = OFF
27 V_RESET O PU Virtual IC reset L = RESET
28 SQCK O PD CD sub cord clock CXD2587Q
29 SUBQ I PU CD sub cord input CXD2587Q
30 NC O NO USED
31 REM_TXD O Remocon UART data output
32 REM_RXD I Remocon UART data input
33 CD_CLOSE_SW I PU CD tray close switch detect H = OFF L = ON
34 CD_OPEN_SW I PU CD tray open switch detect H = OFF L = ON
35 MD_TX O PU Data transmit output to MD
36 MD_RX I PU Data receiving input to MD
37 SEL_CLK O PD Selector IC clock output
38 SEL_DATA O PD Selector IC data output
39 SEL_LAT O PD Selector IC latch output
40 V_LAT O Dolby pro logic surround decoder IC CXD2724Q latch output
41 V_READY I Dolby pro logic surround decoder IC CXD2724Q

42 V_DOLBY O PD Virtual dolby ON/OFF control H = ON L = OFF

ucom interface forwarding permission signal input

7

RXD-NV500/NV600

CIRCUIT DESCRIPTION

Pin No. Name I/O Connect Description

43 SEL_MUTE O PD Selector CD,MD,TAPE mute output H = ON
44

MD_PROTECTION
45 MD_RESET O PD MD ucom reset H = NORMAL L = RESET
46 POWER O PD Power relay control H = ON L = OFF
47 MD_CE O PD MD ucom power supply ON/OFF detect output H = NORMAL L = AC OFF
48 A_MUTE O PD Mute control output H = OFF L = ON
49 PROTECTION I PU Protection detect input H = PROTECTION
50 HP_SW I PU Phones jack detect input L = INSERT PHONES JACK
51 EX_AMP_STB O PD AMP expander IC latch output
52 EX_AMP_CLK O PD AMP expander IC clock output
53 EX_AMP_DATA O PD AMP expander IC data output
54 ATT O PD Attenuator control output H = OFF L = ON
55 SW_MUTE O PD Sub woofer mute control 2CH MUTE L: MUTE ON

56 SP_RELAY O PD Speaker relay control H = ON L = OFF
57 HP_RELAY O PD Phones relay output H = ON L = OFF
58 EMP_MONO O PD Tuner emphasis control H = EMP L = MONO
59 PLL_DO I PU PLL IC data input LC72131
60 PLL_CE O PD PLL IC CE LC72131
61 PLL_CLK O PD clock output to PLL IC
62 +5V I VDD LC72131
63 PLL_DATA O PD Data output to PLL IC
64 GND I GND LC72131
65 STEREO I PU Tuner STEREO detect input H = MONO L = STEREO
66 SD I PU Tuner SD detect input H = NO TUNED L = TUNED
67 TUNER_MUTE O PD Tuner MUTE output H = ON L = OFF
68 DECK_DATA O PD DECK expander IC data output
69 DECK_CLK O PD DECK expander IC latch output
70 DECK_LAT O PD DECK expander IC clock output
71 REC_F_SW I PU DECK F-REC SW input H = OFF L = ON
72 PACK_SW I PU DECK PACK SW input H = OFF L = ON
73 PLAY_SW I PU DECK PLAY SW input H = OFF L = ON
74 CrO2_SW I PU DECK CrO2 detect SW input H = CrO2 L = Normal
75 REC_R_SW I PU DECK R-REC SW input H = OFF L = ON
76 REM_SW I PU Remocon and set connection detect SW input H: INSERT REMOCON
77 LED_DATA O PD LED expander IC clock output
78 LED_CLK O PD LED expander IC data output
79 LED2 O PD Standby/timer RED LED output L = ON
80 LED1 O PD Standby/timer GREEN LED output L = ON
81 RTREN I PD Remocon IC data transmit permission signal input L = permission
82 RWR I PD Remocon IC data read request signal input L = READ REQUEST
83 RWRREQ O PD Remocon IC data read signal input L = READING
84 REM_DATA O PD Remocon output expander IC data output
85 REM_CLK O PD Remocon output expander IC latch output
86 REM_LAT O PD Remocon output expander IC clock output

87~89 SIMUKE3~1 I PU Destination distinction input

90 2CH/3CH I PU Speaker output 2ch/3ch select distinction input H: 2CH

91,92 KEY1,2 I PU Key A/D input 1,2

93 DPSS I PU DECK DPSS detect A/D input
94 PHOTO I PU DECK run detect input
95 FAN_SENSOR I PU FAN control noise level detect input
96 AVSS I GND A/D converter GND
97 RDS_SLEVEL I PD RDS S level input
98 VREF I VDD A/D converter reference voltage +5V(non backup 5V)
99 AVCC I VDD A/D converter power supply +5V(backup 5V)

100 NC O NO USED

8

I PU Protection detect input (MD) H = NORMAL L = PROTECT

3CH RELAY H: SUB WOOFER ON

RXD-NV500/NV600

DISTINCTION

UCOM SIMUKE1 SIMUKE2 SHIMUKE1

DISTINCTION (89PIN) (88PIN) (87PIN)

JJ010
KK1000
ME1001
E E1(RDS) 1 1 0
T E2(RDS) 1 0 1

PIN NO NAME I/O CONNECT DESCRIPTION

1 NORM O PD DECK NORMAL H=NORMAL L=CrO2
2 BIAS O PD DECK BIAS CONTROL H=ON L=OFF
3 BEAT O PD BEAT CANCEL CONTROL
4 SOL O PD DECK SOLENOID CONTROL H=ON L=OFF
5 VSS O GND
6 CPM O PD DECK MOTOR CONTROL H=ON L=OFF
7 REC_PLAY O PD DECK REC/PLAY SW H=REC L=PLAY

8,9 AB-2,1 O PD DECK(ACTIVE MODE SEL.)

10 DATA I DATA INPUT
11 CLK I CLOCK INPUT
12 STB I LATCH INPUT
13 CLR I RAM CLEAR INPUT
14 120_70 O PD DECK (ACTIVE SEL.) H=70u L=120u
15 1_2 O PD DECK(ACTIVEM SEL.) H=B2 L=B1
16 DOLBY_NR O PD DECK DOLBY CONTROL H=ON L=OFF
17 DECK_MUTE O DECK MUTE CONTROL H=ON L=OFF
18 VDD POWER SUPPLY

CIRCUIT DESCRIPTION

2-4 DESTINATION

(1) Model distiniction (90PIN) 2CH/3CH

1 : RXD-NV500 (None SW)
0 : RXD-NV600 (Exist SW)

(2) TUNER

3. EXPANDER IC PIN DESCRIPTION

(1) STANDBY/TIMER LED

STNDBY LED USES 2COLOR LED TO CONTROL FROM UCON PORT

No74 RED No73 GREEN 2COL. LED

STANDBY H L RED

OTT PRG.12 L H GREEN

NO USED H H ORENGE

POWER ON L L OFF

(2) LED DRIVER EXPANDER IC PIN DESCRIPION : BU2090 (X28:IC201)

PIN NO NAME I/O CONNECT DESCRIPTION

1 VSS GND
2 DATA I PD DATA INPUT
3 CLOCK I PD CLOCK
4 REC TAPE O REC TAPE (RED) H=OFF L=ON
5 SEL TAPE O SELECTOR TAPE(GREEN) H=OFF L=ON
6 SEL TUNER O SELECTOR TUNER(GREEN) H=OFF L=ON
7 TUNED O TUNED (RED) H=OFF L=ON
8 SEL CD O SELECTOR CD (GREEN) H=OFF L=ON

9 NC O NO USED
10 MUTE/STEREO O STEREO(RED) H=OFF L=ON
11 REC MD/MUTE O MUTE (RED) H=OFF L=ON
12 SEL MD O SELECTOR MD (GREEN) H=OFF L=ON
13 INTERFACE O INTERFACE (RED) H=OFF

14,15 NC O NO USED

16 VDD POWER SUPPLY

REMOCON TRANSMIT

L=ON

(3) DECK EXPANDER IC PIN DESCRIPION : NJU3713D (X28:IC101)

9

RXD-NV500/NV600

PIN NO NAME I/O CONNECT DESCRIPTION

1 FAN_ON O FAN CONTROL H=OFF L=ON
2 FAN_HI O FAN SPIN SPEED SEL. H=LOW L=HIGH
3 NC O NO USED
4 VSS GND GND
5 VIDEO_INPUT_SW2 O VIDEO1/2 SELECT SW2 L: FIXED
6 VIDEO_MUTE O VIDEO SIGNAL OUTPUT MUTE

SAME TIMING OF POWER

H=MUTE OFF

7 VIDEO_INPUT_SW1 O VIDEO1/2 SELECTOR SW1 H=VIDEO2

L=VIDEO1
8 DATA I DATA INPUT
9 CLK I CLOCK INPUT

10 STB I LATCH INPUT
11 CLR I RAM CLEAR INPUT

12,13 NC I NO USED

14 VDD POWER SUPPLY

CIRCUIT DESCRIPTION

(PORT TRUE TABLE)

9 AB-1 L H H
8 AB-2 L L H

A/B Lo Mid Hi

(4) AMP EXPANDER IC PIN DESCRIPION : NJU3711D (X07:IC3)

STOP L L L L

PLAY L L L L

FF L L L L

RWD L L L L

REC H H H H

ARM H H H L

REC PAUSE H L H L

7 R/P 2 BIAS 9 AB-1 8 AB-2

How to Use Test Mode for Repair.

Need the remote controller if carry out this test mode.

Cassette Deck

Setting: Plug the power cord in the wall outlet with
pressing the TAPE-PLAY key on the unit.

Cancel: Pull out the power cord from the wall outlet.
Tape LED is blanking in test mode.
LEDs shows leaf switches condition as follows when

press STOP key on the unit.

LED SWITCH CONDITION
CD Mis-erase prevention (FWD)
TUNER Mis-erase prevention (REV)
MUTE Tape detection
STEREO Kind of tape(CrO2)

Recording/playback check

a) Rewind and playback tape after recording any for 4 secs

10

when TUNER/BAND key on the unit is pressed.

b) More 4 secs recording if the TUNER/BAND key is

pressed in record mode.

c) In this test mode, TUNER LED is blanking.

d) LEDs shows record level as follows when press MUTE

key on the unit.

LED INPUT LEVEL
MUTE 0dB(low)
STEREO +3dB(high)

Initialization

a) The unit returns to factory-out condition if CD EJECT key

on the unit is pressed.

b) The display of remote controller shows mechanism error

(CD: CD_ERR, cassette: X_ERR) if the unit is carried
out no mechanism initialization.

c) The display of remote controller shows "INITIALIZE" in

mechanism initialization.

RXD-NV500/NV600

CD SECTION (use the LCD remocon.)

NO. ITEM

INPUT

SETTINGS

OUTPUT

SETTINGS

CD PLAYER

SETTINGS

ALIGNMENT ALIGN FOR

(Caution) Connect and remove to the tester for the laser current check at POWER OFF condition.
TEST MODE : While pressing the PLAY/PAUSE key ,plug the power code into the AC power wall outlet.
Insert TEST DISC.

[1]

LASER CURRENT

CHECK

Test disc

type 4

- 0.5 0.2

[2]

FOCUS ERROR

BIAS

Test disc

type 4

Connect an
oscilloscope and jitter
meter as follows.
CH1:RF(CN301:1pin)
CH2:TE1(CN301:6pin)
GND:VC(CN301:4pin)

Press the

PLAY/PAUSE key .

Confirm that the

display is 05.

FE BIAS

VR301

Optimum eye

pattern

CASSETTE DECK SECTION

NO. ITEM

INPUT

SETTINGS

OUTPUT

SETTINGS

CASSETTE DECK

SETTINGS

ALIGNMENT ALIGN FOR FIG.

Unless otherwise specified, set the respective switches as follows:

TAPE: NORMAL DOLBY: OFF INPUT: REC IN OUTPUT: PLAY OUT 0dBm=0.775V

I .Cassette mechanism (REC/PB head adjustment)

[1]

Demagnetization

and cleaning

--

(POWER OFF)

demagnetization

(PLAY)

cleaning

REC/PB head

erase head

capstan

pinch roller

Demagnetize the
REC/PB head by
head eraser. Clean
the REC/PB head
,eraser head,
capstan and pinch
roller with a cotton
swab immersed in
alcohol.

[2]

REC/PB head

azimuth

TCC-153

MTT-114

10kHz,-10dB

Connect the VTVM
and oscilloscope to
REC OUT jack

Connect the VTVM
and oscilloscope to
REC OUT jack

PLAY

FWD RVS

Adjust the output
to maximum and
adjust the azimuth
adjustment screw
for the Lissajous
waveform pattern
of the oscilloscope
to become close to
a 45¡ straight line.

I I. Capstan motor adjustment

[1]

Tape speed

(NORMAL)

TCC-110

MTT-111

3kHz

PLAY

VR.

inside motor

Adjust so that the
frequency 3kHz at
the center of the
tape.

ADJUSTMENT

(POWER OFF
CONDITION ) Set the
tester between

of CN305 on the
PCB(X29:B/3) of set
upper .

and

PLAY/PAUSE key to

display is 03 or05.

Press the

check that the

11