Kenwood RXDM-35 Service manual

70%

AUX TUNER/band CD TAPE volume

Tuning

Mode

standby/timer

remote rec mode set/sound

time

0 push open

BEAT

1 2

phones

push open

MICRO Hi-Fi COMPONENT SYSTEM

RXD-M35 LS-M35/F30

SERVICE MANUAL

(HM-335/HM-F30)

Stereo jack (E11-0398-08)

Door ass'y * (F07-)

F. Cab. assy * (A60-)

Button (K29-8259-08)

FL filter (B11-1567-08)

TOP VIEW

* Refer to parts list on page 26 .

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.

Button (K29-8260-08)

Knob(VOLUME) (K29-8258-08)

Cass. door lens * (B10-)

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.

FM indoor antenna (1) (T90-0861-08)

AM loop antenna (1) (T90-0846-08)

Remote control unit (1) (A70-1568-05): E,T,H type (A70-1569-05): K,X type

Batteries(R6/AA) (2)

RXD-M35

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 POWER or

key depressed, plug the power

cord again.

Please note that resetting the microcomputer clears the contents stored in and it returns to condition when it left the factory.

After resetting the microcomputer, the display will show as follow:

standby/ timer

POWER

The marking of products using lasers (For countries other than U.S.A., U.S.-Military and Canada)

The marking of this product has been classified as Class 1. It means that there is no danger of hazardous radiation outside the product.

Location: Back panel

CLASS 1

LASER PRODUCT

CAUTION

VISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

Inside this laser product, a laser diode classified as Class 3A laser radiation is contained as alerted by the internal caution label shown above. Do not stare into beam or view directly with optical instruments.

1 Remove the CD from the unit. 2 Press the CD 6 key.

3 Wait for some time and verify that the display

appears as above.

4 Wait a few seconds and turn the unit OFF.

Note related to transportation and movement

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

CONTENTS / ACCESSORIES / CAUTIONS

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

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

CIRCUIT DESCRIPTION ............................................4

ADJUSTMENT ..........................................................14

PC BOARD .............................................................. 15

Accessories

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

EXPLODED VIEW ....................................................25

PARTS LIST..............................................................26

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

Cautions

standby/ timer

EXTERNAL VIEW

ANTENNA

AUX

RXD-M35

Speaker terminal (E70-0112-08)

RCA jack (E63-1091-08)

Speaker terminal (E70-0113-08)

Heatsink cover (F07-1799-08)

AC line cord * (E30-)

SYSTEM CONFIGURATIONS

SYSTEM RECEIVER SPEAKERS COLOR FOR

HM-335-S RXD-M35-S LS-M35-S SILVER USA & AUSTRALIA HM-335E-S RXD-M35E-S LS-M35-S SILVER HM-F30-S RXD-M35-S LS-F30 SILVER FRENCH HM-335IT-S RXD-M35-S LS-F30 SILVER ITALY HM-335-N RXD-M35-N LS-M35-N GOLD HM-335E-N RXD-M35E-N LS-M35-N GOLD

* Refer to parts list on page26.

RXD-M35

CIRCUIT DESCRIPTION

1. Initializing

1-1 Initialization Method

• While pressing the [POWER] key, turn the AC on.

1-2 Initialization Operation

• During the initial operation, the display shows "RESET" and after that it will be returned to standby condition.

• If any mechanisms error occurred, the error indication is displayed as "ERR" in the display.

1-3 Mechanism Initializations

1CD Mechanism

• If a mechanism error occurred, the error indication is displayed as "C ERR" in the display.

2Deck Mechanism

• If a mechanism error occurred, the error indication is displayed as "X ERR" in the display.

2. Tuner Types

Set Destination Band Receiving Frequency Range

K,P K1

E,T,H, E3 FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz

E2 RDS AM 531kHz~1602kHz 9kHz +450kHz 9kHz

M,X,

V AM 531kHz~1602kHz 9kHz +450kHz 9kHz

M,V K2

Voltage (IC401, Pin3) 4.2V~5.0V 2.6V~4.1V 1.4V~2.5V 0.7V~1.3V

Type E,E2,T,H K,P M,V X

FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz AM 530kHz~1700kHz 10kHz +450kHz 10kHz

FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz

FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz AM 530kHz~1610kHz 10kHz +450kHz 10kHz

Channel

Space

IF RF

3. Tuner Preset Frequency

Frequency

P.CH K1(K,P Type) E3(E,T,H,E2 Type) E1(M,X,V Type) K2(M,V Type)

1 FM 98.30MHz FM 98.30MHz FM 98.30MHz FM 98.30MHz 2 FM 108.0MHz FM 108.0MHz FM 108.0MHz FM 108.0MHz 3 FM 89.10MHz FM 89.10MHz FM 89.10MHz FM 89.10MHz 4 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 5 FM 90.00MHz FM 90.00MHz FM 90.00MHz FM 90.00MHz 6 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 7 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 8 AM 1610kHz AM 1503kHz AM 1503kHz FM 87.50MHz

9 AM 1700kHz AM 1584kHz AM 1584kHz AM 1610kHz 10 AM 1000kHz AM 999kHz AM 999kHz AM 1000kHz 11 AM 630kHz AM 621kHz AM 621kHz AM 630kHz 12 AM 1440kHz AM 1350kHz AM 1350kHz AM 1440kHz 13 FM 106.0MHz FM 106.0MHz FM 106.0MHz FM 106.0MHz 14 AM 530kHz AM 531kHz AM 531kHz AM 530kHz 15 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 16 FM 98.00MHz FM 98.00MHz FM 98.00MHz FM 98.00MHz 17 FM 98.50MHz FM 98.50MHz FM 98.50MHz FM 98.50MHz 18 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 19 AM 990kHz AM 945kHz AM 945kHz AM 990kHz 20 FM 97.40MHz FM 97.40MHz FM 97.40MHz FM 97.40MHz 21 AM 530kHz AM 531kHz AM 531kHz AM 530kHz 22 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 23 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 24 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 25 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 26 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 27 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 28 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz 29 FM 87.50MHz FM 87.50MHz FM 87.50MHz FM 87.50MHz

30 FM 106.0MHz FM 106.0MHz FM 106.0MHz FM 106.0MHz

CIRCUIT DESCRIPTION

4. Test Mode

4-1 Setting method of the Test Mode

Test Mode Keys Setting Method

CD MODE CD PLAY key Insert the AC cord to AC wall

DECK MODE TAPE PLAY

4-2 Cancel of the test mode

• Initialized and cancel the test mode if pulling out the power cord.

• Cancel the test mode only if the power key is turned off.

4-3 Contents of the Test Mode

• The muting during mode selection is not controlled in the test mode.

• During the test mode, it can be operated in a special manner that is different from an ordinary operation by using the keys on the main body, specifically as shown in the following tables

4-4 CD Test Mode

Keys Display Operation

CD-PLAY/PAUSE 05

(Cyclically changed the mode (✽✽: ✽✽)Time Display • Pickup moves inward.

05 and 03 by pressing the key.) 03

CD STOP 00 : 00 Stop the CD operation.

(Cyclically changed in the 07 FG/FE FG value /FE value

stop mode only.) 08 FB/FO FBAL value /FO value

SKIP UP Ex.0.1~0.2 • Track number up

SKIP DOWN Ex.0.2~0.1 • Track number down.

outlet while holding down the left key.

✽✽: ✽✽

(✽✽: ✽✽)Time Display • Pickup moves outward.

09 TG/TE TG value /TE value 10 TB/TO TBAL value /TO value

• Tracking-servo on.

• Tracking-servo off. (for checking TE)

Adjustment value/mean value

RXD-M35

4-5 Deck Test Mode

Keys Display Operation

• 4 Seconds Recording If the REC/ARM key is pressed, the system record for 4 seconds.

TAPE REC AUX

✽

Mechanism half switches indication

The mechanism half switches status are indicated "blank" or "E" in the display.

8th Dot(Display) 1st figure 2nd figure 3rd figure 4th figure

Mechanism FWD REC Inhibit RVS REC Inhibit Cassette Half Tape Play Half Switch Detection SW Detection SW Detection SW Detection SW

ON Blank Blank Blank Blank

OFF E E E E

Then, it rewinds to the REC starting position and plays back automatically. If the REC/ARM key is pressed, during the 4 seconds REC operation, the system records further for 4 seconds, then returns to the starting position of the first 4 seconds REC operation and plays back.

RXD-M35

5. Microcomputer : MN101C51F (IC401)

5-1 Microcomputer Periphery Block Diagram

IC801

CIRCUIT DESCRIPTION

IC701

PLAY BACK/REC EQ. IC

AN7317

FL DRIVER

(MN12510F)

FL801 IC301

Vaccume Fluorescent Display

IC202 IC102

(MN662748WB)

Key Matrix VREF =5.0V

Voltage

Range

Key 1 ON/

(Pin 5) STANDBY DOWN PLAY UP

Key 2

(Pin 6) PLAY

(HNA-14SM06)

DSP IC

CD MECHA.

(KSM213)

0 0.89 1.55 2.00 2.61 3.02 3.42 5.00

REC

IC401

MN101C51F

IC802 VR801

KEY REMOTE ENCORD

AUX TUNER

SKIP

STOP

TAPE

CD SKIP

MODE SET (off)

DECK MECHA.

SYSTEM IC

(LC75342M)

PLL IC

LC72131M

IC103

RDS IC (E/T TYPE) (BU1923F)

(off)

5-2 Pin Description of Microcomputer : MN101C51F (IC401)

Pin No. Pin Name I/O Description

1 VREF - - Connected to power supply(+5.0V). 2 END SW I Reel sensor input for cassette deck. 3 TN TYPE I Discrimination of tuner destination. 4 S LEVEL I RDS signal level input(E/T type only). 5 KEY1 I A/D key (key1) input port. 6 KEY2 I A/D key (key2) input port. 7 A LEVEL - Unused. 8 TH - Unused.

9 CD PROTECTION I Detection port for CD protection. 10 VREF + I A/D reference voltage(+5V). 11 VCC I Power supply(+5.0V). 12 OSC2 O Main clock oscillator(8.388MHz). 13 OSC1 I Main clock oscillator(8.388MHz). 14 VSS I GND. 15 X1 I Timer clock input(32.768kHz).

CIRCUIT DESCRIPTION

Pin No. Pin Name I/O Description

16 X0 O Timer clock output(32.768kHz). 17 MMOD - Connected to ground. 18 S DI I Data input from FL driver IC. 19 S.DO O Data output to FL driver IC. 20 S CK O Clock output to FL driver IC. 21 MLD O CD DSP command load signal output. 22 SUBQ I CD sub code input. 23 SQCK O Clock output for CD sub code. 24 CL SW I CD close detection switch input. 25 RESET I Reset signal input for microprocessor. 26 CE I Power failure input port. 27 OP SW I CD open detection switch input. 28 CD POWER O CD DSP power on/off control. 29 XRST O CD DSP reset output. 30 SLT SW I CD start limit switch input. 31 REM. CONTROL I Remote control signal input. 32 NO USE - Unused. 33 RDS CLK I RDS clock input. (E/T version only) 34 RESET2 - Unused. 35 CD BLKCK I Sub code synchronous signal input. 36 MDATA - Unused. 37 STAT I CD DSP status signal input. 38 MCLK O CD DSP command clock signal output. 39 CLOSE - Unused. 40 OPEN - Unused. 41 PH IN I Unused. 42 FLASH UC1 - Unused. 43 FLASH UC2 - Unused. 44 V CE O Chip enable output to electronic volume system IC. 45 V CLK O Clock output to electronic volume system IC. 46 V DATA O Serial data output to electronic volume system IC. 47 PWR RELAY O Power relay control output. H = ON L = OFF

48,49 NO USE - Unused.

50 FLASH WRITE - Unused. 51 NO USE - Unused. 52 PLL CLK O PLL IC clock output. 53 PLL DO/ST I PLL IC data input. 54 PLL DATA O Data output to PLL IC. 55 PLL CE O PLL IC chip enable. 56 SD I SD detector input. H = NO TUNED L = TUNED 57 TU MUTE O Tuner mute control. L : MUTE ON 58 PACK SW I Deck pack switch input. H = OFF L = ON 59 F REC SW I Deck forward rec switch input. H = OFF L = ON 60 R REC SW I Deck reverse rec switch input. H = OFF L = ON 61 PLAY SW I Deck play switch input. H =OFF L =ON 62 B. CANCEL - Unused. 63 REC/PB O Deck rec/play control. 64 BIAS O Deck bias control. 65 A/B O Unused. 66 LINE MUTE O Deck line mute control. 67 REC MUTE O Rec mute control. 68 CPM O Deck capstan motor control. 69 SOL O Deck solenoid control. 70 RDS DATA - Unused.

RXD-M35

CIRCUIT DESCRIPTION

Pin No. Pin Name I/O Description

71 PROTECT O Detection input port for protection circuit H = PROTECTION ON

72 A_MUTE O Audio muting control output. H = OFF L = ON

73 SP. RERAY O Unused.

74 EEP SDA I/O EEPROM data input and output.

75 EEP SCL O EEPROM clock output.

76 ENC A I Rotary encoder input (up).

77 ENC B I Rotary encoder input (down).

78 LED. RED O Control port of standby/timer LED(red). L = ON

79 LED. GRN O Control port of standby/timer LED (yellow). L = ON

80 NCS O CS signal output to LCD driver IC.

6. Pin Description of IC's

6-1 CD RF AMP : AN8399SA-E1 (IC201)

Pin No. Pin Name I/O Description

1 PD I APC Amp input. 2 LD O APC Amp output. 3 VCC - Power supply. 4 RF I RF amp inverting input. 5 RF OUT O RF addition amp output. 6 RF IN I AGC amp input. 7 LDRCTL - LD reference voltage control. 8 CAGC - AGC loop filter connection.

9 ARF O AGC output. 10 CEA - Capacitance connection for RF HPF-Amp. 11 RF ENV O 3T-ENV output. 12 CSBDO - Capacitance connection for RF dark side envelope detection. 13 BDO O BDO output. 14 COFTR - Capacitance connection for RF bright side envelope detection. 15 OFTR O OFTR output. 16 NRFDET O NRFDET output. 17 GND - GND 18 SLPSW - Sleep mode control (connected to ground). 19 VREF O VREF output. 20 TEN I TE. Amp inverting input. 21 TEOUT O TE. Amp output. 22 FEN I FE. Amp inverting input. 23 FEOUT O FE. Amp output. 24 GCTL O Gain & APC control. 25 FBAL O F. BAL control. 26 TBAL O T. BAL control. 27 E I Tracking signal input 1. 28 F I Tracking signal input 2. 29 D I Focus signal input 4. 30 B I Focus signal input 2. 31 C I Focus signal input 3. 32 A I Focus signal input 1.

RXD-M35

CIRCUIT DESCRIPTION

6-2 DSP IC : MN6627482WB( IC202)

Pin No. Pin Name I/O Pin Description

1 BCLK O Bit clock output for SRDATA. 2 LRCK O L, R clock signal output. 3 SRDATA O Serial data output. 4 DVDD1 - Digital power supply. 5 DVSS1 - Digital ground. 6 TX O Digital audio interface signal output. 7 MCLK I CPC command clock signal input. 8 MDATA I CPU command data signal input.

9 MLD I CPU command load signal input. Load 10 SENSE O Sense signal output(OFT, FESL, NACEND, NAJEND, SFG). 11 FLOCK O Focus servo signal output. 12 TLOCK O Tracking servo signal output. 13 BLKCK O Sub code block clock output. fBLKCK = 75Hz 14 SQCK I Sub code Q data clock input pin. 15 SUBQ O Sub code Q data signal output pin. 16 DMUTE I Connected to be ground. Mute 17 STAT O Status signal output. 18 XRST I Reset signal input. Reset

19 SMCK O

20 PMCK O

21 TRV O Traverse forced feed output. 22 TVD O Traverse drive output. 23 PC O Spindle motor on signal output. L : ON (Default) 24 ECM O Drive signal output for spindle motor (forced mode output). 25 ECS O Drive signal output for spindle motor (servo error signal output). 26 KICK O Kick pulse output for tracking driver. 27 TRD O Tracking servo drive output. 28 FOD O Focus drive output. 29 VREF I Reference power supply for DA output section. 30 FBAL O Focus balance adjusting output. 31 TBAL O Tracking balance adjusting output. 32 FE I Focus error signal input (analog input). 33 TE I Tracking error signal input (analog input).

34 RFENV I

35 VDET I/O

36 OFT I Off track signal input. Off Track 37 TRCRS I Track cross signal input pin (analog input). 38 RFDET I RF detector signal input pin. Detected 39 BDO I Drop out signal input. Drop Out 40 LDON O Laser on signal output. ON 41 PLLF2 I/O PLL loop filter switching pin. 42 TOFS O Tracking offset adjusting output.

43 WVEL O Double speed status signal output.

44 ARF I RF signal input. 45 IREF I Reference current input pin. 46 DRF I DSL bias pin. 47 DSLF I/O DSL loop filter pin. 48 PLLF I/O PLL loop filter pin. 49 VCOF I/O VCO loop filter pin.

8.4672MHz clock signal output when MSEL is H.

4.2336MHz clock signal output when MSEL is L.

88.2kHz clock signal output when default. Play signal output when command is carry out.

RF envelope signal input (analog input). Vibrating detection signal input when default. Software vibrating detection monitor output when command is executed.

Active

Play

Detected

Double

Speed

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