Kenwood RSE-9-T, RSE-9-R Service manual

STEREO INTEGRATED AMPLIFIER/TUNER

band

volume control

auto/mono enter

phones

mode

multi control

N.B.

∞ ∞

down up

stereo integrated amplifier/tuner R-SE9T

TRAITR

on/standby

EX.BASS

SYSTEM

CONTROL

ANTENNA

GND

REC

PLAY

SUPER WOOFER PRE OUT

SPEAKERS

( 6 - 16 )

TAPE

REC

PLAY

AUX

FM75

R-SE9/SE9T

SERVICE MANUAL

[This R-SE9 is E type.]

Side plate (A50-1303-02)

Knob (K29-6741-04)

AC power cord * (E30-)

Power cord bushing (J42-0083-05)

Front glass (B10-2369-03)

Panel* (A60-)

Lock terminal board (E20-0321-05)

Knob (K29-6738-04)

Phono jack (E63-1033-05)

Knob (K29-6751-04)

Knob (K29-6739-04)

Lock terminal board (E20-0321-05)

Screw terminal board (E70-0034-05)

PRECAUTIONS FOR REPAIR

• For the SERIAL TEST CODE LIST of the circuit description, see Service manual (B51-5210-00) of R-SA7.

Phono jack (E63-0116-05)

Phono jack (E63-1033-05)

Phono jack (E63-1034-05)

Rectangular receptacle (E08-0312-05)

Illustrator is R-SE9T.

* Refer to parts list on page20.

• For the INITIAL STATE, the BACK UP and the MICROPROCESSOR of the circuit description, see Service manual (B515373-00) of R-SE7.

• No connection of ground line if disassemble the unit.

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

DISPLAY

SLEEPTAPE

REMOTE CONTROL UNIT

RC-SE9(E)

1 2 3 RANDOM

4 5 6 CLEAR

7 8 9 P.MODE

O.T.E. 0 +10 EDIT

TUNER

BAND

INPUT

PTY

N.B.

RDS

DISPLAY

MUTE

TA/NEWS

/INFO

VOLUME

CONTROL

CDP.CALL

R-SE9/SE9T

CONTENTS / ACCESSORIES

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

CIRCUIT DESCRIPTION............................................3

ADJUSTMENT............................................................7

PC BOARD ................................................................ 8

SCHEMATIC DIAGRAM.......................................... 11

Accessories

EXPLODED VIEW ....................................................19

PARTS LIST..............................................................20

PARTS DESCRIPTIONS..........................................25

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

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

Audio cords (2) (E30-0615-05)

Remote control unit (1)

(A70-1155-05) .......................RC-SE9(E)

AM loop antenna stand (1) (J19-3645-05)

System control cord (1) (E30-2628-05)

FM indoor antenna (1) (T90-0806-05)

Batteries (R6/AA) (2)

Battery cover (A09-0374-08)

R-SE9/SE9T

CIRCUIT DESCRIPTION

1. DESTINATION LIST OF TUNER

1-1 Destination List of Tuner

Destination

(RDS)

Receive

BAND frequency

87.5MHz~

108.0MHz 530kHz~

1700kHz

87.5MHz~

108.0MHz 531kHz~

1602kHz

87.5MHz~

108.0MHz 531kHz~

1602kHz

K2 or E1 is changed the setting "DSW1".

(DSW1=1 : K2, 0 = E1)

0 : NO DIODE 1 : DIODE X : SWITCHING TRANSISTOR

Channel

range frequency

space

100kHz +10.7MHz 25kHz

10kHz +450kHz 10kHz

50kHz +10.7MHz 25kHz

9kHz +450kHz 9kHz

50kHz +10.7MHz 25kHz

9kHz +450kHz 9kHz

1F reference DSW1 DSW2

PLL

DIODE SW(X14)

D26 D29

1 1

0 1

1 0

X 1

2. TEST MODE

2-1. Initializing

The system is initialized when the power is turned on while pressing the POWER key.

(1) Contents of operation

• All the functions are initialized.

2-2. AMP test mode using main unit's keys

2-2-1. Entering the AMP test mode

• Turn on the power while pressing the BAND key.

2-2-2. Canceling the AMP test mode

• By turning off the power, the system is initialized and the

test mode is canceled. 2-2-3. Contents of AMP test mode (1) Automatic POWER ON

• The POWER ON state is entered whenever the power is turned on while pressing the BAND key. All functions are then initialized and activated in the all-lighting mode.

• Sub-clock oscillation diagnosis function

The oscillation diagnosis (existence of oscillation and measurement of period) of a sub-clock is performed before the test mode is entered. If the diagnosis result is OK, the system enters the test mode. If the diagnosis result is NG, the oscillation of the subclock is diagnosed again. If the result is OK, the system enters the test mode. If the diagnosis result is continuously NG five times, the system stops with ERR 1 and ERR 2 displayed.

(2) All-lighting mode

• All the fluorescent display indicators and LED lamps light when the power is turned on while pressing the BAND key.

• After that, the all-lighting mode is canceled when any main unit's key is pressed. The normal display obtained when the selector is set to TUNER then appears.

(3) Others

• The AMP test mode is not terminated even if the selector is set to positions other than TUNER.

• In the AMP test mode, the muting during mode selection is not controlled. However, the operation during the power-on sequence is the same as the normal operation.

• The SP protection operation is also the same as the normal operation.

• In the AMP test mode using main unit's keys, the keys below provide a special operation according to the position where the selector is set. The main unit's keys except described below and the rotary encoder provide the normal operation.

(4) When selector is set to TUNER

Key Operation

EX. BASS key Increments the P.CALL every time this

key is pressed.

N.B. key Decrement the P.CALL every time this

key is pressed.

ENTER key Selects the display cyclically in the order

below every time this key is pressed.

1 Write data in the unused area of E2PROM, then read the

written data. If the read data is the same as the written data, "RAM OK" is displayed in the fluorescent display indicator. If the former is different from the latter, "RAM NG" is displayed.

2 Set the TUNER ATT to OFF and display the S level in

hexadecimal when the ENTER key is pressed. ("ATT OFF **" is displayed in the fluorescent display indicator.)

3 Set the TUNER ATT to ON and display the S level in

hexadecimal when the ENTER key is pressed. ("ATT ON **" is displayed in the fluorescent display indicator.)

* The special display using the ENTER key is continued until the next operation is carried out. (**: S LEVEL) When keys other than ENTER are pressed in items 1 to 3 above, the TUNER ATT is set to OFF and the normal display appears. The operation corresponding to the key that has been pressed is performed in this case.

(5) When selector is set to positions other than TUNER [ENTER key] Every time this key is pressed, master VOL-

UME level is selected cyclically.

INITIALIZE level

Value of Master VOLUME Press the ENTER key.

MAX 86

MID 40 MIN 1

INITIALIZE 7

ìî MAX î MID î MIN ì

R-SE9/SE9T

CIRCUIT DESCRIPTION

[ AUTO key ] Selects the MUTE operation and equalizer cyclically in the order below for operation display every time this key is pressed.

-- -> MUTE operation -> Minimum -> Maximum ->

✣ In the operation for except the AUTO key, become pre-

condition equlizer .

✣ Pre condition : The equlizer becomes the condition to be

pushed the AUTO key before (include N.B. circuit).

(6) SERIAL TEST CODE LIST

Refer to Service manual (B51-5210-00) of R-SA7 on

page 7. [ BAND key ] Every time this key is pressed, all the displays go off and the normal display is selected cyclically.

✣ Pre-condition

2-3. RDS test mode using main unit's keys

2-3-1. Entering the RDS test mode

• Turn on the power while pressing the N.B. key.

2-3-2. Canceling the RDS test mode

• By turning off the power, the system is initialized and the test mode is canceled.

2-3-3. Contents of RDS test mode

• The POWER ON state is entered whenever the power is turned on while pressing the N.B. key. All the functions are then initialized.

• In the RDS test mode using main unit's keys, the keys below provides a special operation according to the position where the selector is set. The main unit's keys except described below and the rotary encoder provide the normal operation.

Key Operation

EX. BASS key Performs the same operation as for

remote control key "DISPLAY" every time this key is pressed.

MODE key Performs the same operation as for

remote control key "PTY" every time this key is pressed.

N.B. key Performs the same operation as for

remote control key "TA" every time this key is pressed.

ENTER key Selects the display cyclically in the order

below every time this key is pressed.

2 Set the TUNER ATT to OFF and display the S level in

hexadecimal when the ENTER key is pressed. ("ATT OFF **" is displayed in the fluorescent display indicator.)

3 Set the TUNER ATT to ON and display the S level in

hexadecimal when the ENTER key is pressed. ("ATT ON

**" is displayed in the fluorescent display indicator.) * The special display using the ENTER key is continued until the next operation is carried out. (**: S LEVEL) When keys other than ENTER are pressed in items 1 to 3 above, the TUNER ATT is set to OFF and the normal display appears. The operation corresponding to the key that has been pressed is performed in this case.

2-4. SERIAL TEST MODE

(1) Setting the serial test mode The unit is put into the serial test mode when a serial code

"TEST ON" is input during the POWER-ON sequence. In the 16-bit serial test mode, serial code C27FH is input.

• In the serial test mode, all remote control keys and ordinary serial codes are disabled. Only the panel keys perform the same operation as usually.

(2) Canceling the serial test mode

• The serial test mode is canceled to return to the ordinary mode by inputting a "TEST OFF" code (C27 EH). After the ordinary mode was returned, the serial mode is returned to the state before the test mode is entered.

The backup operation is not initialized.

• The serial test mode is also canceled when the AC power is turned OFF.

(3) Cautions

• The serial test code is prescribed as a 16-bit code only.

• The operations below are inhibited in the serial test mode. The operations mentioned above cannot be guaranteed when they are performed in the serial test mode.

• An identical code is output when the serial test mode code

is input.

1 Write data in the unused area of EEPROM, then read the

written data. If the read data is the same as the written data, "RAM OK" is displayed in the fluorescent display indicator. If the former is different from the latter, "RAM NG" is displayed.

CIRCUIT DESCRIPTION

FL DISPLAY (FIP9GM6R)

RESET

REMOCON

LEVEL IN

EX. BASS LED

FAN ON

FAN HI

LOW RELAY

HI RELAY

SPEAKER RELAY

(X09) J5

(X14) IC1

(X14) S2

DATA BUSY

ENC-C ENC-D

(X14) ED1

(X05) IC2

(X09) IC1

(X14) IC3

u-COM

uPD78045FGF065

PLL IC (LC72131)

KEY MATRIX

SELECTOR ANALOG SW CONTROL IC (NJU7313AM)

E2PROM IC (X24C04)

MULTI CONTROL ENCODER

(X14) S1

ENC-A ENC-B

VOLUME ROTARY ENCODER

(X14) IC4

SIGNAL LEVEL RDS CLOCK RDS DATA

RDS

(X09) IC3

ELECTRIC VOLUME IC (TDA7319)

SD STEREO HEAD PHONES PROTECTION

A MUTE T MUTE H. P. MUTE ATT A CLASS ON

✽

SERIAL

3. Microprocessor : uPD78045FGF065 (X14 : IC1)

3-1 Microprocessor periphery block diagram

R-SE9/SE9T

Key matrix

KS0 DSW0 (D25) DSW1 (D26) DSW2 (D29)

KS1 POWER AUTO / MONO BAND

KS2 N. B. MODE No. use

KS3 EX. BASS ENTER No use

No. of : u-COM port No.

KR0

KR1

KR2

R-SE9/SE9T

CIRCUIT DESCRIPTION

3-2 Pin description

Pin No. Name I/O Description Active

1~7 7G~1G O FL grid 7~1 —

8 VDD — Micro processor power supply (+5V) —

9 E2PROM SCL O E2PROM control clock — 10 E2PROM SDA I/O E2PROM control data — 11 ENC C — Multi control encoder input A — 12 ENC D — Multi control encoder input B — 13 A CLASS ON O Power ON/OFF control signal H : OFF L : ON 14 SEL STB O Selector IC strobe — 15 SEL/PLL CLK O SEL/PLL IC control clock — 16 SEL/PLL DATA O SEL/PLL IC control data — 17 RESET I Microprocessor reset L : RESET ON 18 CE I AC OFF(MAIN POWER) detection Signal L : AC OFF 19 PLL DO O IF count data — 20 AVSS — A/D power SUPPLY (GND) — 21 PLL CE O PLL chip enable control L : CE 22 T MUTE O Tuner mute signal L : MUTE ON 23 STEREO I Stereo signal detection L : STEREO ON 24 SD I Synchronized signal detection — 25 VOL SCL O Electric volume IC control clock — 26 VOL SDA O Electric volume IC control data — 27 LEVEL IN I Volume level input —

✣ 28 S.LEVEL(RDS) I Signal level —

29 A VDD — A/D power supply (+5V) — 30 A VREF — A/D reference voltage(+5V) —

31, 32 OSC — 32kHz oscillator —

33 Vss — Microprocessor power supply (GND) —

34, 35 OSC — 4.19MHz oscillator —

36 S.DATA I/O 16bit system data — 37 S.BUSY I/O 16 bit system busy H : BUSY L : READY 38 H.P. MUTE O Head phones mute signal L : ON 39 ATT O -6dB attenuator H : OFF L : ON 40 A MUTE O Audio mute signal L : ON 41 HIGH RELAY O AMP high relay control H : ON L : OFF 42 LOW RELAY O AMP low relay control H : ON L : OFF 43 SP RELAY O Speaker relay control H : ON L : OFF

✣ 44 CLK(RDS) I RDS clock — ✣ 45 DATA(RDS) I RDS data —

46 PROTECTION I Protection detection H : ON L : OFF 47 REMOCON I Remote control input — 48 IC — — — 49 EX. BASS LED O EX. BASS LED H : OFF L : ON 50 FAN HI O Fan speed control signal H : LOW L : HIGH 51 FAN ON O Fan power supply control signal H : OFF L : ON 52 VDD — Microprocessor power supply (+5V) — 53 ENCA I Volume encoder in put A — 54 ENC B I Volume encoder input B — 55 HEAD PHONE I Head phones signal detection H : ON L : OFF

56, 57 NC O — — 58~60 KR2~KR0 I KEY return 2~0 H : KEY ON 61~64 SEG16~13/KS3~0 O FL Segment 6~13 /key scan 3~0 H : ON 65~70 SEG12~SEG7 O FL Segment 12~7 H : ON

71 V load — FL drive power supply (-30V) —

72~77 P6 SEG6~SEG1 O FL Segment 6~1 H : ON

78 NC O — —

79, 80 9G, 8G O FL grid 9, 8 —

✣ E/T type only, other types unused.

The RDS PTY AF search always corresponds to a span search of 100kHz. Therefore, a span search of 50 KHz cannot be performed.

NO.

ITEM

INPUT

SETTINGS

OUTPUT

SETTINGS

TUNER

SETTINGS

ALIGNMENT

POINTS

ALIGN FOR

FIG.

DISCRIMINATOR

(A)

98.0kHz

1kHz, ±75kHz dev.

60dBµ(ANT input)

Connect a DC

voltmeter

between

Pin 1 and Pin 2

of CN 2.

MONO

98.0MHz L 31

(a)

L 32

Minimum distortion.

DISTORTION

(STEREO)

(C)

98.0MHZ

1kHz, ±68.25kHz dev.

Pilot: ±6.75kHz dev.

60dBµ(ANT input)

(B)

AUTO

98.0MHz

IFT (A1)

Minimum distortion.

(a)

NO.

ITEM

INPUT

SETTINGS

OUTPUT

SETTINGS

AMP

SETTINGS

ALIGNMENT

POINTS

ALIGN FOR

FIG.

POWER: ON

IDLE CURRENT

—

Connect a DC

voltmeter across

CN9(L)

CN10(R)

(X09, A/4)

Volume : 0

VR1(L)

VR2(R)

(X09, A/4)

18mV

(b)

SYSTEM CONTROL

ANTENNA

GND

REC

PLAY

SUPER WOOFER PRE OUT

SPEAKERS

( 6 - 16 )

TAPE

REC

PLAY

AUX

FM75

Oscilloscope

Distortion meter

AC voltmeter

Dummy antenna

(A)

(B)

(C)

(D)

FM SG

MPX

FM SG

AM SG

(a) (b)

CN9(L) CN10(R)

DC voltmeter

18mV

FM SECTION

X05-4622-71 (T TYPE)

AUDIO SECTION (X09-4952-70)

R-SE9/SE9T

ADJUSTMENT

SYSTEM CONNECTIONS

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