Kenwood RXDM 51 Service Manual

Page 1

RxorMblMDIK) COVER1,lP( 98.12.1019:11 y [ w 2

MICRO HiFi COMPONENT SYSTEM

RXD-M51/M51MD KENWOOD

SERVICE MANUAL
(HM-531/581 MD)

Dressing panel
(A21 -3707-03)

Knob

(K29-7392-02)

Dressing panel

Panel (MD)
(A29-1022-O4)

/\
K

© 1998-9/851-5477-00 (K/K) 2138

Front glass
(810-3418-03)

KENWOOD

Panel
%(A60-1496-11)

IEI
W. IEI
1&1

Knob

I:I standby/timer

(K29-7393-03)

set/damn '

l/d)

It,

-| q
|] DISC LOADING MECHANISM l]

093 l mun,- a,
»

I on/slandby I

(A21-3721-03)

I Indicator
(812-0351-03)

II
1 I .-7Knob
I cn>III MD >III I MDrec f-] T] 3 (K29-6358-14)
3 a; I
l I I I I I W I TUNER | Aux
I I I I I I II II II II
I 44* TAPE/preset 4» band

Knob
(K29-7394-03)

TAPE m:

remole

phones

. Mmiature phone lack
(E11-0344-05)

From glass
(B1 0-3419-14)

Illustration is RXD-M51 MD.
* Refer to parts list on page 49.

~ Refer to DM-3090 service manuaI(B51-5396-OO), if

require the following items in detail.

1) MD mechanism(MDM-98A) disassembly for repair

(P519355)

2) Semiconductor description
IC1101zRF signal control(page9)
|C1201:ENDEC/ATRAC(page10,11)
IC1401:system microcomputer(page 12,13)

Caution : No connection of ground line it disassemble the
unit.
Please connect the ground line on rear panel,
PCBs, Chassis and some others.

KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No.21 DFR 1040. 10, Chapter 1, Subchapter J.

DANG ER : Laser radiation when open and interlock defeated.

AVOID DIRECT EXPOSURE TO BEAM

L

Page 2

JRXDaMSlMDlK)CO\/ER1,1P( 98.12.1019111 y [w 3 44%
RXD-M51/M51 MD

CONTENTS / ACCESSORIES / CAUTION

Contents

CONTENTS / ACCESSORIES / CAUTION ................. 2 PC BOARD .......................
EXTERNAL VlEW/DISASSEMBLY FOR REPAIR ....... 3 SCHEMATIC DIAGRAM
BLOCK DIAGRAM ............. ...4 EXPLODED VIEW
CIRCUIT DESCRIPTION ...5 PARTS LIST ..........
ADJUSTMENT ................... 11 SPECIFICATIONS
WIRING DIAGRAM .................................................... 12

Accessories
r

N
Please confirm that the following accessories are present.
- - FM indoor antenna (1) - , l- Loop antenna (1) (T90-0833-05) -
1 Europe UK and Russia Other countries I I AM loop antenna stand (1) 1
I (T90-0810-05): TE (T90-0801-05): M : I (.119-3645-05» I
I I : I
I : a I
I ' . I
1 i : ' 1
AC plug adapter (1)
(E03-O115-05) _
i , Speaker cords (2) BatterIes (RS/AA) (2)
(E30-5500-05)
Use to adapt the plug on the power 77 ' r '
\ cord to the shape of the wall outlet.
c (Accessory only for regions where
use IS necessary.
Remote control unit (1) Remote control unit (1) Remote control unit (1)
(A70-1236-05) : RC-M0503E (A70-1242-05) :RC-F0503E (A70-124I-05) : Rc-F0503
J
System configuration
SYSTEM MAIN UNIT DESTINATION SPEAKER SP CORD PARTS.NO.
HM-581MD RXD-M51MD E1T1 LS-M61 E30-5500-05
HM-531 RXD-M51 M1 E2T2 LS-M51 E30-5500-05
Caution
Operation to reset
The mIcrocomputer may fall Into malfunctlon (Imposs'bll' Unplug the power cord from the power outlet then, while
Ity to operate, erroneous display, etc.) when the power . .. ,,
. . . . hoIdIng the set/demo key depressed, plug the power
cord Is unplugged thIe unIt Is ON or due to an external cord a ain
factor. In this case, execute the following procedure to g '
reset the microcomputer and return it to normal condi-
tion. I: d
0 Please note that resetting the microcomputer clears the 53 emu K5
contents stored in and it returns to condition when it left
the factory.

Page 9

- Test Mode Step Nu. Setting Method Remarks Display
l AUTO pissadluslmenl mode -Autpmatlc prerzdluslmem ls perlorrned. (Alter adlustment lhe grating adjustment mode ls set.) 599 5 Continuous Playback (9mm Small [BEDEEIEOOOOI
~ The adlustment value is output Wlth the ald or system controller lnteriace, Step 5 Press the MD STOP putton STEP 2 AUTO adlustmem menu
2. AUTO adyuslrneni mode ~ Automatic adlustment is pericrmed Step 7 Adrustment value output [ c a n 'l g A D .l ]
~ The adlustment value is output vvlth the aid or system controller interlace Press the MD STOP hutton STEP 2 AUTO adyusiment menu
~Ot lok ld.E |'dl tt .
0" "mm 9 3" an 5 3' we ( m" m e " ma 0" '"mp es) - W : Adjustment namev OO : Measurement valuev EDD] : Address
3. RESULT SubrmOde' ~ The measuremeni value set value and calculated value are lndrcated
~ The set value ls changed manually (ln servo OFF state)
4. RESULT mode (iinal adyustmentl' - The set value (alter calculatipnl is lndicated O Mechanism Adlustmem E)
- The set value ls changed manually (ln servo OFF state). L OPNCEI PICKUP 9'31an INSPecflng method @ g»
5 MANUAL pleradluslment mode ~ RF side manual adlustment IS periormed
~ Focus and tracking slgnal ATT manual adyustrnent ls perlorrned. ism lo nil osmscovs a
- Focus and tracking slgnal ollset setting ls periormed, 255 M W D :inkh
e MANUAL adyustment made ~ Focus and tracking slgnal ATT manual adyustrnent ls perlormed E m» J-
.4 ea
7 EEPROM settlng mode ~ Dont adlust. 25 MEN :7in V 1, SW MW
8 TESTVPLAY mode ~ Oontlnuous playoack irom the specllled address IS pellolmed. edur ° make mm WAVEFDW fix
~ Cl errOi late measurement Lesslharlzbzfll
a. TESTPEO mode' ~ Contlnuous recordlng lrom the specliied address ls perrormed Flgure i-l Optical Pickup Grating Deviation d 0
~ Change or record laser aulpul (servo galn ls also changed aocoldlhg to laser output) Measuring Method
0» EJECT mode - TEMP selling (0' EEPROM sellingl Alter lhe automatlc adlustmerlt ls pertormed lrl the AUTO u
. m5 mode is not used ,0, same mode ttest mode) With the aid ol high retectlon MD dlsc
("COMPLATF ls displayed), the Ltssajous's wavelorm leyl ls Adyusilng h
it AUTO preadiustriient mode (Low reflection disc only) adlUSled. ®
. . l Slightly loosen the 3 screws or spindle moto and maken an
' S fll |
Step No. Setting Method Remarks Display adlusmem Bhsewmg me Lssalcusls wavemm /53 pm e mo al
Step i Test mode STOP state [ts mocoo e 00] 2 Alter adluslment lighten the Screw in arder oi ® . ® . ® . ; / \< \ Checkme saws waveynm
Step 2 Press once the MD REC huttan, AUTO pre-adlustment menu I A U T O 1 D e l l Q l shilling :ie maungng'poalllon wrlm
, ascew er (a e rte more
Step 3 Press once the MD PLAv button, The sllde moves to the lnnermost periphery and automatic [xxx . 777777 ] 2_ mm, adlusmem and checking memod \,//ad mg; flx'mnyglvadjks.ng gale;
preadiustmeht ls started. .l hole
~ During automatic aolustment )(XX changes as rollows. llller Meter lg
HAtHRFgeSAgSSBgePTGSPCHSGTGSGOHSRCGA Figure 1-2
SEGaRFGaSAGHHAOaHEOATCOALAO
End oi adyustment ll adlustment is OK, Step 4, )v
ll adlustment is Ne, Step 5.
O
Step 4 Grallng adyuslment, l, c O M P L E T E ,1 3pm m C mm 17mm 9
adlustment value oulput EFMMON °_-l
Press once the MD STOP hutton STEP 2 .3 pm a, lo mm mm,
Step 5 Adlustment value output I A U T v O Bl ] GND
Press once the MD STOP hutton STEP 2 AUTO prerzdjuslmenl menu Flgure1-3 Jitter connection diagram
. . Alter perlormmg automatlc adyustment ln AUTO mode at
- 96K>< . Ad ustment name, . Address
CUBE TEST mode uslng the low rerleetlon MD dlsc, cheokthls litter
2_ AUTO adjustment mode in prt contlnuous playback and groove continuous playback
mode
Step tie. Selling Method Remarks Display
Step 1 Test mode STOP slate [ts MOOQQ e 00]
Step 2 Press the MD REC hutton two ilmes AUTO adyustment menu [A U T O 7 A u S T 7]
Step 3 Press once the MD PLAv oution The sllde moves to the lnnermost perlphery and automatic my : ,,,,, 1
adlustment is started.
- In case pl high reilection disc wee changes as rollows.
PEGeHAG
-ln case or low relleetlon disc >K>$K changes as rollows.
FEGaLAGAGCGaGEGaLAG
End oi adlustment ll adlustment is OK, Step 4.
ll adlustment ls NG, Step 7.
Step 4 Adlusirnent value output l, c O M P L E T E 7]
Press the MD PLAV button STEP 5
Press the MD STOP button STEP 2

8T M] K 2116101'21'86 ldTTHEi/ios (xlclrligwadxa

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Page 40

179

>14 New Parts
Parts wnhout Parts No, are not supphed,

%

>14 New Pans
Parts wnhout Pans N01 are not supphed.

Les amcIes non mentionnes dens Ie Parts No. me sont pas fournls m Les amcles non menuonnes dens Ie Parts No. he sent pas fournls, @
TeIIe ohne Parts N01 warden nlcht gelxefert. T9119 ohne Parts N01 warden mcht gehefert.
Add- New - - Desli- Re- Add- New . . Desli- Re-
Re" No ress Fans Parts "0' Desmpm" naiian marks REI' Na ress Pans Pans "0' Description naiian marks
R326 RK73FB2A473J CHIP R 47K J 1/10W T1 E1 T2 D206, 207 SSGSBBUPBS) DIODE
R327 RK73FB2A101J CHIP R 100 J 1/10W E2 D208 HSS104A DIODE T1E1
R327 RK73FB2A101J CHIP R 100 J 1/10W T1E1T2 D208 1SS133 DIODE T1E1
R323. 329 RD14NEI2E2R2J RD 2.2 J 1/4W D209, 210 HSS104A DIODE
R330 RK73FB2A473J CHIP R 47K J 1/10W D209, 210 138133 DIODE
R331, 332 RK73FB2A101J CHIP R 100 J 1/10W T1E1 D211 MA111 DIODE
R333, 334 RK73FB2A152J CHIP R 1.5K J 1/10W T1E1 D212, 213 HSS104A DIODE T1E1
R335, 336 RK73FB2A163J CHIP R 16K J 1/10W T1E1 D212, 213 138133 DIODE T1E1
R333 RK73FEI2A100J CHIP R 10 J 1/10W T1E1 D214 MTZJ5.6(B) ZENER DIODE
R351 , 352 RK73FB2A222J CHIP R 2.2K J 1/10W D214 RD5.6ES(B2) ZENER DIODE
R353. 354 RK73FB2A471J CHIP R 470 J 1/10W D215 MA111 DIODE T1E1
R355. 356 RK73FEI2A104J CHIP R 100K J 1/10W D216, 217 DA204U DIODE
R357 RK73FB2A472J CHIP R 4.7K J 1/10W IC1 >14 HA12219NT ANALOGUE IC
VR1, 2 R32-0030-05 SEMI FIXED VARIABLE RESISTOR IC2 HA12136A IC(DOLBY B NR SYSTEM)
VR3. 4 =14 R32-0075-05 SEMI FIXED VARIABLE RESISTOR 1C4 LC75396NE ANALOGUE IC
VR201 R32-0038-05 SEMI FIXED VARIABLE RESISTOR ICS BA3126N ANALOGUE IC
W501, 502 R92-0670-05 CHIP R 0 OHM IC201 CXA1571 M IC(CD RF AMP)
505 R92-0670-05 CHIP R 0 OHM M1T2E2 IC202 BA5979S ANALOGUE IC
W506 R92-0679-05 CHIP R 0 OHM IC203 CXD2587Q MOS-IC
W601 R92-0679-05 CHIP R 0 OHM M1 10204 PST993D-T ANALOGUE IC
W601, 602 R92-0679-05 CHIP R 0 OHM E2 IC205 >14 M30622MA-174FP MI»COM IC
W601 L 602 R92-0679-05 CHIP R 0 OHM T1 E1T2 IC206 SAA6579T ANALOGUE IC E2
W603 R92-0670-05 CHIP R 0 OHM E2 10206 SAA6579T ANALOGUE 10 T1 E1 T2
W603 R92-0670-05 CHIP R 0 OHM T1 E1T2 IC206 SAA6579T/R ANALOGUE IC E2
W604~606 R92-0679-05 CHIP R 0 OHM M1 IC206 SAA6579T/R ANALOGUE 10 T1 E1 T2
W604~614 R92-0679-05 CHIP R 0 OHM E2 01,2 2SC2458(Y,GR) TRANSISTOR
W60 14 R92-0679-05 CHIP R 0 OHM T1 E1T2 01,2 2SC2785(F,E) TRANSISTOR
W609~614 R92-0679-05 CHIP R 0 OHM M1 A 03 2SC3940A(R,S) TRANSISTOR
W615 R92-0670-05 CHIP R 0 OHM E2 A 03 2SD863(E,F) TRANSISTOR
W615 R92-0670-05 CHIP R 0 OHM T1 E1T2 04~B DTC124ESA DIGITAL TRANSISTOR
W616 R92-0679-05 CHIP R 0 OHM 04~B UN4212 DIGITAL TRANSISTOR
W617~619 R92-0670-05 CHIP R 0 OHM 09, 10 2SA1286-T11 TRANSISTOR
W620 R92-0679-05 CHIP R 0 OHM 011 DTA124ESA DIGITAL TRANSISTOR
W621 R92-0670-05 CHIP R 0 OHM T2E2 011 UN4112 DIGITAL TRANSISTOR
W622 R92-0670-05 CHIP R 0 OHM T1 E1 012 DTC124ESA DIGITAL TRANSISTOR
W623 R92-0679-05 CHIP R 0 OHM M1T2E2 012 UN4212 DIGITAL TRANSISTOR
W623, 624 R92-0679-05 CHIP R 0 OHM T1 E1 013, 14 DTC143TUA DIGITAL TRANSISTOR
013,14 UN5216 DIGITAL TRANSISTOR
S201 540-1140-05 PUSH SWITCH 015 >14 DTA143TUA DIGITAL TRANSISTOR
015 UN5116 DIGITAL TRANSISTOR
D1 MTZJ5.6(B) ZENER DIODE
D1 RD5.6ES(EI2) ZENER DIODE 016, 17 2SD1757K TRANSISTOR E2
D2~4 HSS104A DIODE 016, 17 28D1757K TRANSISTOR T1 E1T2
D2~4 1SS133 DIODE 018 >14 DTA143TUA DIGITAL TRANSISTOR E2
D5 MTZJ4,7(B) ZENER DIODE 018 >14 DTA143TUA DIGITAL TRANSISTOR T1 E1T2
018 UN5116 DIGITAL TRANSISTOR E2
D5 RD4.7ES(B2) ZENER DIODE
D6 MTZJ5,1(EI) ZENER DIODE 018 UN5116 DIGITAL TRANSISTOR T1E1T2
D6 RD5.1ES(B2) ZENER DIODE A 0201 2SD2012 TRANSISTOR
D201 HSS104A DIODE /t\ 0201 2SD2061(E,F) TRANSISTOR
D201 1SS133 DIODE 0202 DTC143TSA DIGITAL TRANSISTOR
0202 UN4216 DIGITAL TRANSISTOR
D202 MTZJ5.6(B) ZENER DIODE
D202 RD516ES(EI2) ZENER DIODE 0203 2SA954(L,K) TRANSISTOR
D203 HSS104A DIODE 0204 DTC143TSA DIGITAL TRANSISTOR
D203 1SS133 DIODE 0204 UN4216 DIGITAL TRANSISTOR
D205 DA204U DIODE A 0205 2SC3940A(R,S) TRANSISTOR
A 0205 2SD863(E,F) TRANSISTOR
L: Scandinavia K: USA P : Canada I : Mexico (2 : China I : Malaysia L ; Scandmawa K: USA P : Canada a : Mexmu c : cmna I : Malaysia
V: PXIFarEaSI, HawaH) T: Europe E : Europe G : Germany V : CmnaIShanghalI V : PXIFaI EasL Hawaii) T : Eumpa E : Eumpe G : Germany V: ChmaIShanghaI)
V : AAFESIEumpe) X : AusIraIla 0:Hu551a H : Kuraa M : DlherAreas A Intimates safety Critical components V : AAFESIEurupe) X : Ausnaha fl : RUSSIB H : Korea M : OtherAreas A IndICaIes safety crmEaI mmpunenls,

.LSI'I SlHVd

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