Kenwood RA-150, RA-100, RV-350, RV-300 Service manual

STEREO INTEGRATED AMPLIFIER/TUNER

ON/STANDBY

PHONES

INPUT TAPE 2

(MONITOR)

TA/NEWS

/INFO.

DISP. AUTO A.MEMO BANDPTY

CLOCK

MODE

TIMER

VOICE

ACTIVATE

SET

ON/OFF

SET 1

SET 2

VOICE ACTIVATE

TUNING

MODE

MULTI CONTROL

LEVEL

VOLUME CONTROL

DOWN

UP

AV SURROUND RECEIVER R-V350

R D S
EON

+

−

FRONT

REAR CENTER

+

−

R

L

R

L

C

ANTENNA

AM

FM 75Ω

GND

TAPE1/MD

TAPE 2

(MONITOR)

LD

VCR

CD

AUX

IN IN IN

REC PLAY

REC

REC

PLAY

MONITOR

OUT

LD

VCR

REC OUT

VCR

PLAY IN

PLAY

R

L

SYSTEM

CONTROL

VOICE ACTIVATE

SUB WOOFER
PRE OUT

VIDEOSPEAKERS

AUDIO

UNSWITCHED

( 6-16Ω )

R-A100/A150/V300/V350

SERVICE MANUAL

© 1997-9/B51-5369-00 (K/K) 3653

Indicator
(B12-0311-04)

Phone jack
(E11-0280-05)

Metallic cabinet
(A01-3457-01)

Knob *
(K29-)

Lock terminal board
(E70-0052-05)

Dressing panel
(A21-1989-03)

Miniature phone jack *
(E11-)

Miniature phone jack
(E11-0283-05)

Front glass *
(B10-)

Phono jack *
(E63-)

Knob *
(K29-)

Power cord busing
(J42-0083-05)

Panel *
(A60-)

Knob
(K29-6727-04)

AC power cord *
(E30-)

Caution : No connection of ground line if disassemble the unit.

Lock terminal board
(E70-0053-05)

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

Lock terminal board
(E70-0046-05)

Phono jackx3
(E63-0139-15)

Phono jack
(E63-0138-15)

AC outlet *
(E03-)

Illustration is R-V350.

* Refer to parts list on page 41.

R-A100/A150/V300/V350

ON/STANDBY

MUTE

VOLUME

ENTER

Setup

DVD/6ch Input

Sound Speaker

C D
Sat.

Tape1
Cable

Reset

VCR1
VCR2

L D
T V

Confirm

Set Up

Return

Input

Source

Main Menu

TapeA

TapeB

Tape1

LD

Tuner

CD

VCR2

VCR1TVSat.Cable

CONTENTS / ACCESSORIES

Contents

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

EXTERNAL VIEW........................................................3

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

ADJUSTMENT...........................................................10

PC BOARD ................................................................12

Accessories (R-A100/A300/V300/V350)

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

EXPLODED VIEW .....................................................39

PARTS LIST...............................................................41

SPECIFICATIONS.....................................................53

FM indoor antenna(1)
(T90-0809-05) R-A100/R-V300 : IYMCX type
(T90-0810-05) R-A150/R-V300/V350 : EKPT type

Microphone(1)
(W01-0935-05)

Graphical Remote Control unit(1) *
(A70-1159-05) GRC-150 (R-V300 KP type)

Battery cover (A09-0379-08)

Remote control unit(1) *
(A70-1136-05) RC-S0504 (R-V350)
(A70-1150-05) RC-S0503 (R-V300) IYMCX type
Battery cover (A09-0378-08)

(A70-1149-05) RC-S0300 (R-A100/A150)
Battery cover (A09-0357-08)

AM loop antenna(1) (T90-0820-05)

Batteries(R6/AA) (2)
(Except U.S.A. and Canada)

Loop antenna stand(1)
(J19-3645-05)

Batteries(R03/AAA) (4)

*AC plug adapter (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)

Cable tidy(2)
(F07-1602-04)

2

R-A100/A150/V300/V350

ON/STANDBY

PHONES

INPUT TAPE 2

(MONITOR)

AUTO A.MEMO BAND

CLOCK

MODE

TIMER

SET

TUNING

MODE

MULTI CONTROL

LEVEL

VOLUME CONTROL

DOWN

UP

AV SURROUND RECEIVER R-V300

+

−

FRONT

REAR CENTER

+

−

R

L

R

L

C

ANTENNA

AM

FM 75Ω

GND

TAPE1/MD

TAPE 2

(MONITOR)

LD

VCR

CD

AUX

IN IN IN

REC PLAY

REC

REC

PLAY

MONITOR

OUT

LD

VCR

REC OUT

VCR

PLAY IN

PLAY

R

L

SYSTEM CONTROL

SUB WOOFER
PRE OUT

75µs
FM100kHz
AM 10kHz

50µs

FM50kHz
AM 9kHz

DE-EMPHASIS CHANNEL SPACE

AC 220-240VÓAC 110-120VÓ

VIDEOSPEAKERS

AUDIO

( 6-16Ω )

UNSWITCHED

EXTERNAL VIEW

Indicator
(B12-0311-04)

Phone jack
(E11-0282-05)

Metallic cabinet
(A01-3457-01)

Knob *
(K29-)

Lock terminal board
(E70-0052-05)

Dressing panel
(A21-1983-03)

Slide switch
(S62-0034-05)

Miniature phone jack *
(E11-)

Front glass *
(B10-2367-02)

Phono jack *
(E63-)

Knob *
(K29-)

Slide switch
(S62-0001-05)

Panel *
(A60-)

Knob
(K29-6727-04)

AC power cord *
(E30-)

Lock terminal board
(E70-0053-05)

Lock terminal board
(E70-0046-05)

Phono jackx3
(E63-0139-15)

Phono jack
(E63-0138-15)

AC outlet *
(E03-)

* Refer to parts list on page 41.

Power cord busing
(J42-0083-05)

Illustration is R-V300.

3

R-A100/A150/V300/V350

ON/STANDBY

PHONES

INPUT TAPE 2

(MONITOR)

CLOCK

TIMER
MODE

TIMER

SET

AUTO

A.MEMO

BAND

TUNING

MODE

MULTI CONTROL

LEVEL

VOLUME CONTROL

DOWN

UP

STEREO RECEIVER R-A100

SRS

TAPE1/MD

TAPE 2(MONITOR)

LD VCRCD AUX

IN IN IN

REC PLAY

REC REC

AUDIO

PLAY

PLAY

R

L

SYSTEM CONTROL

SUB
WOOFER
PRE OUT

ANTENNA

AM

FM 75Ω

GND

75µs
FM100kHz
AM 10kHz

50µs

FM50kHz

AM 9kHz

DE- EMPHASIS
CHANNEL
SPACE

+

−

SPEAKERS ( 6-16 Ω)

R

L

AC 220-

240VÓ

AC 110­120VÓ

UNSWITCHED

EXTERNAL VIEW

Indicator
(B12-0311-04)

Phone jack
(E11-0280-05)

Knob
(K29-6779-02)

Dressing panel
(A21-1990-03)

Knob
(K29-6780-02)

Front glass *
(B10-2385-02)

Knob
(K27-6779-02)

Panel
(A60-1193-01)

Knob
(K29-6660-04)

Metallic cabinet
(A01-3459-01)

Lock terminal board
(E70-0053-05)

Lock terminal board
(E70-0052-05)

Slide switch
(S62-0034-05)

Phono jackx3
(E63-0139-15)

Miniature phone jack *
(E11-)

AC outlet *
(E03-)

Phono jack *
(E63-)

Slide switch
(S62-0001-05)

AC power cord
(E30-2592-15)

Power cord busing
(J42-0083-05)

Illustration is R-A100.

* Refer to parts list on page 41.

4

R-A100/A150/V300/V350

ON/STANDBY

PHONES

INPUT TAPE 2

(MONITOR)

ON/OFF

SET 1

SET 2

AUTO

A.MEMO

BAND

TUNING

MODE

MULTI CONTROL

LEVEL

VOLUME CONTROL

DOWN

UP

STEREO RECEIVER R-A150

SRS

VOICE

ACTIVATE

VOICE ACTIVATE

CLOCK

TIMER
MODE

TIMER

SET

R D S
EON

TAPE1/MD

TAPE 2(MONITOR)

LD VCRCD AUX

IN IN IN

REC PLAY

REC REC

AUDIO

PLAY

PLAY

R

L

SYSTEM CONTROL

VOICE

ACTIVATE

SUB
WOOFER
PRE OUT

ANTENNA

AM

FM 75Ω

GND

+

−

SPEAKERS ( 6-16 Ω)

R

L

UNSWITCHED

EXTERNAL VIEW

Indicator
(B12-0311-04)

Phone jack
(E11-0280-05)

Knob
(K27-6661-02)

Dressing panel
(A21-1984-03)

Knob
(K29-6662-02)

Front glass
(B10-2347-02)

Knob
(K27-6661-02)

Panel
(A60-1194-01)

Knob
(K29-6660-04)

Metallic cabinet
(A01-3459-01)

Lock terminal board
(E70-0052-05)

Lock terminal board
(E70-0053-05)

Miniature phone jack *
(E11-)

Phono jackx3
(E63-0139-15)

AC outlet *
(E03-)

Phono jack *
(E63-)

AC power cord *
(E30-)

Power cord busing
(J42-0083-05)

Illustration is R-A150.

* Refer to parts list on page 41.

5

R-A100/A150/V300/V350

REMOCON
u-COM

PLL IC

RDS DEMO. IC

ELECTRIC VOL.
TONE CONT.

+10dB ATT.

MUTE

VOICE ACTIVATION

(X05) IC2

(X14) IC52 (E,T type only)

(X09) IC4, IC5

(X08) Q1,2,5~8,15

(X05) Q6~8

(X14) IC51
(E,T type only)

SERIAL
COMMUNICATION

ROTARY ENCODER
(VOLUME CONTROL)

DELAY IC

DSP IC

AUDIO SELECTOR

VIDEO SELECTOR

KEY MATRIX

(X14) S28, S29

(X09) IC2

(X09) IC3

(X09) IC1, IC301

(X09) IC1

FL DISPLAY

(X14) ED1

(X14)

SP. RELAY
PROTECTION
POWER
CHIP ENABLE
PHONES DETECT
RESONATOR(X1. MAIN)
X'TAL RESONATOR (X2. TIMMER)
RESET

u-COM

uPD780206GF025
uPD780206GF027

KEY
SCAN

KEY
RETURN

VOICE INPUT
POWER ON

ACTIVE VOICE ON

VOICE

SET 1

VOICE

SET 2

CIRCUIT DESCRIPTION

1. Back up data and initial data

POWER ON/OFF : OFF
MAIN VOLUME LEVEL : -65dB
AUDIO INPUT • SELECTOR : TUNER
VIDEO INPUT • SELECTOR(R-V300/V350) : VCR
TAPE1/MD : TAPE1
TAPE2/MONITOR : OFF
FL DISPLAY MODE : SELECTOR
SOURCE DIRECT(R-V300/V350) : OFF
SURROUND(R-V300/350) : STEREO
DSP MODE(R-V300/V350) : ARENA
SPEAKER CH.LEVEL(R-V300/V350) : 0dB
BALANCE : CENTER
DELAY(R-V300/V350) : 20ms
EFFECT LEVEL(R-V300/V350) : 3
TONE BASS : 0dB
TONE TREBLE : 0dB
INPUT LEVEL : 0dB
SRS 3D(R-A100/A150) : OFF
SRS 3D LEVEL(R-A100/A150) : LEVEL 0
TUNING MODE(AUTO/MONO) : AUTO
PRESET MEMORY(40ch) : TEST PRESET FREQUENCY
LAST BAND : FM
FM LAST FREQUENCY : 87.5MHz
AM(MW) LAST FREQUENCY : 531kHz (CH.SP 9kHz)

LW LAST FREQUENCY : 153kHz
LAST P.ch : [--ch]
RDS DISPLAY MODE(R-A150/V300) : FREQUENCY DISPLAY
TA/NEWS/INFO.(R-A150/V300) : OFF
CLOCK DISPLAY : AM 12:00
TIMER : OFF
SLEEP TIMER : OFF
VOICE ACTIVATE KEY WORD : NON SPECIFIC SPEAKER(RD:KENWOOD)
VOICE ACTIVATE : ON

: 530kHz (CH.SP10kHz)

2. Main microprocessor uPD780206GF025 (X14-, IC1) MIYCX type
uPD780206GF027 (X14-, IC1) KPTE type

2-1 Microprocessor periphery block diagram

6

R-A100/A150/V300/V350

CIRCUIT DESCRIPTION

2-2 Key matrix

2 KR3 3 KR2 4 KR1 5 KR0
73 KS0 – – – –
74 KS1 TUNING % DISPLAY(RDS) PTY TA/NEWS/INFO
75 KS2 (MULTI MODE) (MULTI LEVELfi) (MULTI LEVEL%) –

✣ CLOCK ✣ TIMER MODE ✣ TIMER SET –
76 KS3 TUNING fi AUTO MEMORY BAND AUTO
77 KS4 (VOICE ON/OFF) (TIMER SET) INPUT @ INPUT #
78 KS5 (CLOCK SET) (TIMER MODE) ON/STANDBY TAPE2(MONITOR)

✣ VOICE ON/OFF

KS6 – – – –
81 KS7 DSW1(D29) DSW2(D30) DSW3(D31) DSW4
82 KS8 – – – DSW5(D34)

DSW1~DSW4 : Tuner distination
DSW5 : R-A100/A150 or R-V300/V350 Model distination
PTY,TA / NEWS / INFO / DISPLAY(RDS) : RDS function model (R-V350/A150)
( ) : R-V300 / V350 /A100 function
✣ : R-A150 (E,T type) function

2-3 Pin description

No. Name I/O Description

1 Vdd I Power supply(+5V)

2-5 KR3-0 I Key return 3-0

6,7, ENC_VOL1,2 I Encoder pulse detect1,2

8 HP_DET I Headphone detect L: Yes
9 CE I Chip enable L: Enable

10 RESET I Microprocessor reset L: Reset

11,12 X1,2 I Clock generator

13 IC(Vpp) - Connect to Vss

14,15 XT1,2 - Sub clock generator

16 Vdd - Power supply(+5V)

17 HP_MUTE O Mute of headphones

18 PROTECTION I Protection detection

19 SBUSY I/O Serial data busy

20 SDATA I/O Serial data

21 DSP_CLK O Clock for DSP

22 DSP_DATA O Data for DSP

23 DSP_ST O Strobe for DSP

24 MUTE O Mute control L: Mute ON

25 Avss - GND of A/D converter

26 PLL_DO O PLL DO

27 PLL_CE O Chip enable for PLL

28 PLL_DATA O Data detection for PLL

29 PLL_CLK O Clock for PLL

30 T_MUTE O Mute for tuner L: Mute ON

31 STEREO I Stereo signal detection L: Stereo

32 SD I Synchro signal detection L: SD detection

33 RDS_SLEVEL I Signal level of RDS

34 Avdd - Analog power supply for A/D converter

35 Avref - Reference voltage for A/D converter

36 RDS_CLK I Clock for RDS

37 RDS_DATA I Data for RDS

38 N.C. I No used

39 REMOCON_IN I Input port of remote control signal

40 Vss - GND

7

R-A100/A150/V300/V350

Destination

Band

Frequency Range

Channel

Space

IF

PLL

Frequency

Diode SW (X14-)

DSW3

DSW2

(D31)

DSW1

(D30)

DSW0

(D29)

K1

(1700)

FM

87.5MHz~108.0HMz

100kHz

+10.7MHz

50kHz

000

0

AM

530kHz~1700kHz

10kHz

+450kHz

10kHz

K2

(1610)

FM

87.5MHz~108.0HMz

100kHz

+10.7MHz

25kHz

000

1

AM

530kHz~1610kHz

10kHz

+460kHz

10kHz

E1

FM

87.5MHz~108.0HMz

50kHz

+10.7MHz

25kHz

001

1

AM

531kHz~1602kHz

9kHz

+450kHz

9kHz

E3

(RDS)

FM

87.5MHz~108.0HMz

50kHz

+10.7MHz

25kHz

010

1

AM

531kHz~1602kHz

9kHz

+450kHz

9kHz

E4

(LW)

(RDS)

FM

87.5MHz~108.0HMz

50kHz

+10.7MHz

25kHz

011

0

MW

531kHz~1602kHz

9kHz

+450kHz

9kHz

LW

153kHz~279kHz

9kHz

+450kHz

9kHz

M

K2 / E1 change only setting DSW1 (DSW1=0:K2/1:E1)

00(Q5,D33)

1

CIRCUIT DESCRIPTION

No. Name I/O Description

41 +10dB_ATT O +10Db attenuator L: ATT ON
42 VOL_DATA I/O Electric volume control data
43 TAP O LO-HI tap change-over R-V300/V350

VCR_REC O VCR REC change-over R-A100/A150

44,45 N.C. I No used

46 Vdd - Power supply(+5V)

47,48 N.C. I No used

49 CS_RELAY O Center and surround speaker relay control L: C,Sch OFF R-V300/V350

I NPUT LEVEL O Input level change-over H: 0dB R-A100/A150
50 F_RELAY O Front speaker relay control L: L,Rch OFF
51 TC9215 O Vidual selector change-over R-V300/V350

TAPE1_REC O TAPE! REC change-over R-A100/A150
52 VOICE_CTRL O Voice activation / Standby LED
53 SEL_STB1 O Strobe signal for selector IC
54 SEL_DATA O Data signal for selector IC
55 SEL_CLK O Clock signal for selector IC
56 VOICE I Input port of voice activation
57 VOL_CLK O Clock signal for electric volume

58,59 N.C. I No used

60 REM_REWRREQ O Rewrite request signal of interlocution remocon data
61 REM_RWR I Rewrite in signal of interlocution remocon data
62 REM_REREN I Transmit signal of interlocution remocon data L: Transmission

63-70 INP 0-7 O Remote control data bits 0-7

71 VSEL1 O Vidual selector
72 POWER O Power relay control

73-78 SEG11-16 O Display segment control 11-16 / Key scan 0-5

79 Vload - Connect to PLL down resistor
80 SEG10 O Display segment control 10
81 SEG9 O Display segment control 9 / Key scan 7 8Tuner destination)
82 SEG8 O Display segment control 8 / Key scan 8 (Model discrimination)

83-89 SEG1-7 O Display segment control 1-7

90-100 GRID1-11 O Display grid control 1-11

2-4 DESTINATION LIST OF TUNER

Diode SW(DSWx) 0=No diode (Static mode,LOW)

1=Diode (Static mode,HIGH)
X=Transistor SW (0=OFF / 1=ON)

2-5 MODEL DISTINATION

MODEL
R-V300/V350 0

R-A100/A150 1

8

DIODE SW

(X14)D34

R-A100/A150/V300/V350

CIRCUIT DESCRIPTION

3. Test mode

Setting: While pressing the @INPUT key, plug the AC power cord into the AC wall outlet.

All the fluorescent display indicates.
(The all-illuminated state is cleared by pressing any main unit keys.

Cancelling:Plug the AC power cord out from the AC wall outlet.

3-1 Contents of the test mode

No.

OPERATION

KEYS

1 INPUT î87.50íîCDíîLDíîVCRí

2 MULTI.

CONTROL
LEVELELL CHANGES THE PRESET CH.

3 TIMER SET PRO LOGICíî3 STEREO R-V300/V350

4 TIMER MODE îARENíîJAZZ CLUBîSTADIUMî R-V300/V350

TUNER MODE EXCEPT TUNER REMARKS

îTAPE1íîAUXí

í01íî02íî39íî40í

01 THROUGH 40

TEST TONE ON/OFF (PRESS AUTO KEY)
PRO LOGIC ONíîOFF R-A100/A150

DSP ONíîOFF R-A100/A150
5 CLOCK STEREO ONíîOFF R-A100/A150
6 A.MEMO FL DISPLAY ONíîOFF SRS ONíîOFF R-A100/A150
7 AUTO AUTO ONíîOFF îTEST LchíîTEST CchîTEST RchîTEST Schî R-V300/V350

îS.DIRECT ONîS.DIRECT ON / MUTE ONîOFFî R-A100/A150

8 MULTI.CONTROL

MODE ó

BASS 0dB

ó

TREBLE 0dB

ó

L/R, BALANCE

ó

INPUT 0dB

ó

MODE MULTI. CONTROL TUNING

LEVEL DOWN / UP

✣ EXCEPT

R-A100/A150

ó

VOLUME -89dBíî0dB -40dB

ó

SP✣ MIN.íîMAX 0dB

ó

DELAY✣ 15íî30 20

ó

EFFECT✣ 1íî5 3

ó

L/R,BALANCE DOWNíîUP LMINíîRMAX CENTER

ó

TONE MINíîMAX FLAT

ó

INPUT -6dBíî0dB -6dBíî0dB 0dB

ó

KEY

BAND

9 PTY îINPUT SELECTORîOFF.S-LEVELîON.S-LEVELî R-V350(E/T)

TAPE2 TUNER MODE ONLY R-A150(E/T)
10 DISPLAY TIMER NO PSíî01 87.50 E,T type only
11 TA/NEWS/INFO. îTAîNEWSîINFOîOFFî

Change the segment cyclically

3-2 Error message

DISPLAY DESCRIPTION
ERR1 Main u-COM sub clock no output
ERR2 Main u-COM sub clock frequency NG

9

R-A100/A150/V300/V350

No.

ITEM

INPUT

SETTING

OUTPUT

SELECTOR

TUNER/AMP

SETTING

ALIGNMENT

POINTS

ALIGN FOR

FIG.

FM SECTION SELECTOR : FM

1

DISCRIMINATOR

L31↔L32
(E, T only)

(A)

98.0MHz

1kHz, ±40kHz dev

(E, T type)

60dBu (ANT INPUT)

Connect a DC

voltmeter between

port of CN2

AUTO

98.0MHz
L31 (X05-)

0V

(a)

(B)

L32 (X05-)

Minimum
distrotion

2

DISTORTION

(STEREO)

(C)

98.0MHz

1kHz, ±40kHz dev

pilot: ±6kHz dev

60dBu (ANT INPUT)

(B)

AUTO

(98.0MHz)

IFT (W02-)

Mininum
distrotion

(a)

AUDIO SECTION R-A100/A150 ONLY

1

B CLASS

IDLE CURRENT

–

Connect a DC

voltmeter

Volume:
Minimum
Selector:
any modes
other than
TUNER

CN31 : Lch
CN32 : Rch

13mV

(b)

TAPE1/MD

TAPE 2(MONITOR)

LD VCRCD AUX

IN IN IN

REC PLAY

REC REC

AUDIO

PLAY

PLAY

R

L

SYSTEM CONTROL

SUB
WOOFER
PRE OUT

ANTENNA

AM

FM 75Ω

GND

75µs
FM100kHz
AM 10kHz

50µs

FM50kHz
AM 9kHz

DE- EMPHASIS
CHANNEL
SPACE

+

−

SPEAKERS ( 6-16 Ω)

R

L

AC 220­240VÓ

AC 110­120VÓ

UNSWITCHED

Oscilloscope

Distortion meter

AC voltmeter

Dummy antenna

(B)

(A)

(C)

(D)

AG

AG

FM SG

MPX

AG

FM SG

AM SG

(a)

(b)

DC Voltmeter

13mV

CN31(L)
CN32(R)

12

+

-

ADJUSTMENT

10

R-A100/A150/V300/V350

PARTS DESCRIPTIONS

11

A B DC E

PC BOARD(Component side view)

1

2

3

4

5

6

7

12

Refer to the schematic diagram for the value of resistors and capacitors.

F H J L NG I K M O

PC BOARD(Component side view)

1

2

3

4

5

6

7

Refer to the schematic diagram for the value of resistors and capacitors.

13 14

P QSUWYRTVX

PC BOARD(Component side view)

1

2

3

4

5

6

7

15 16

Refer to the schematic diagram for the value of resistors and capacitors.