Kenwood RD-M52MD User manual

70%
MICRO HiFi COMPONENT SYSTEM
RD-M52MD/M72MD
SERVICE MANUAL
(HM-582MD/682MD/782MD) © 2000-6/B51-5625-00 (K/K) 2320
&
STOP
rec
phones
AUX
sound
set
menu
/demo
display
CD
^
MD
^
›
$
TUNER
/BAND
remote
disc loading mechanism
micro hi-fi component system
timer
PUSH
volume/
multi-control
Door assy
(A52-0392-02)
Panel
(A29-1095-04)
Knob
(K29-7770-13)
Knob
(K29-7773-04)
Magnet catch
(J52-0043-05)
Front glass
(B10-3585-03)
Indicator
(B12-0394-04)
Dressing panel
(A21-3864-03)
Knob
(K29-7772-14)
Knob
(K29-7769-03)
Magnet catch
(J52-0043-05)
Illustration is RD-M52MD-L.
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.
In compliance with Federal Regulations, following are repro-
ductions of labels on, or inside the product relating to laser
product safety.
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Operation to reset
The microcomputer may fall into malfunction (impossibil-
ity 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 menu/demo 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.
menu
/demo
RD-M52MD/M72MD
2
CONTENTS / ACCESSORIES / CAUTIONS
CONTENTS / ACCESSORIES / CAUTIONS............. 2
EXTERNAL VIEW.......................................................3
CIRCUIT DESCRIPTION............................................4
ADJUSTMENT..........................................................10
PARTS DESCRIPTIONS..........................................11
PC BOARD .............................................................. 12
SCHEMATIC DIAGRAM.......................................... 17
EXPLODED VIEW ....................................................31
PARTS LIST..............................................................35
SPECIFICATIONS....................................................45
Contents
AM loop antenna (1)
(T90-0852-05)
Remote control unit (1)
Battery cover(A09-1161-08)
Batteries (R6/AA) (2)
Speaker cord (2)
FM indoor antenna (1)
(T90-0858-05)
Pin spikes (12)
(D21-1974-04)
Anti-slip sheets (12)
(G16-0878-14)
RD-M72MD ONLY Cleaning cloth (1)
(W01-0990-04)
Feet for speaker (8)
Accessories
Cautions
REMOTE CONTROLLER MODEL NAME MODEL DESTINATIONS BATTERY COVER
A70-1385-05 RC-M0507E-IT RD-M72MD THE A09-1183-08
A70-1399-05 RC-M0301E RXD-M52MD-S T2 A09-1161-08
A70-1399-05 RC-M0301E RXD-M52MD-L THE A09-1161-08
SYSTEM MAIN UNIT DESTINATION SPEAKER SP CORD PARTS No FOOT FOR SPEAKER
HM-582MD-L RD-M52MD-L ETH LS-M52-L E30-5828-05 J02-0624-08
HM-682MD RD-M52MD-S T2 LS-M52-S E30-5828-05 J02-0624-08
HM-782MD RD-M72MD ETH LS-M72 E30-5880-05 J02-0626-08
System configration
Remocon configration
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RD-M52MD/M72MD
3
EXTERNAL VIEW
SERIAL NO.
+
-
+
-
R
L
SUB
WOOFER
PRE OUT
DIGITAL IN
OPTICAL
OUT IN
AUX
(TAPE/MD)
ANTENNA
FM
75Ω
GND
AM
SPEAKERS
(6-16Ω)
RL
Optical receiving module
(W02-2731-05)
AC power cord *
(E30-) AC power cord bushing (J42-0083-05) Lock terminal board (E70-0127-05)
Pin jack
(E63-1082-05)
Lock terminal board
(E70-0053-05) Pin jack (E63-0164-05)
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CD mecha unit
CDM-34
DECK mecha unit
NJU3713D (IC4)
EXPANDER IC
X28
MDM-06
MD mecha unit
HD6432227N01FA
Back up
circuit
A/D
X29, IC1
M30624MG-304FP(DECK)
-303FP(MD)
SIO
SIO
PWM
Main uCOM
PWM
A/D
A/D
AMP hadrware
circuit
AMP_ system_IC
(input selecter)
TUNER unit
(RDS unit)
CDTAPE MDTUNER AUX
X29, IC8
A/D
A/D
A/D
INT
INT
RESET
EEPROM
INT
INT
UART A/D A/D
encoder
REM stnby eject
cd md/ tape
Key matrix
(8keys X
2 lines)
LCD module
(64✽64dot)
LCD driver
RESET & CE
circuit
(mech ucom)
RD-M52MD/M72MD
4
CIRCUIT DESCRIPTION
3. Microprocessor :M30624MG-303FP(MD version)
:M30624MG-304FP(DECK version)
3-1 Microprocessor periphery block diagram
DESTI- DESTINATION SW RECEIVING CHANNEL
UNIT 3 2 1 BAND FREQUNY IF RF EMPHASIS
NATION (40Pin) (39Pin) (38Pin) RANGE SPACE
K,P KI 0 0 0 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 1
AM 530kHz~ 1700kHz 10kHz +450kHz 10kHz 0
ME1 0 0 1FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz 0
AM 531kHz~ 1602kHz 9kHz +450kHz 9kHz 0
E,T E3 110
FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz 0
(RDS) AM 531kHz~ 1602kHz 9kHz +450kHz 9kHz 0
1.Initializing the CD/MD Receiver
1-1Initialization Method
The CD/MD receiver will be initialized when you pressed [SOUND] key and turn the AC on.
1-2 Contents of Initialization
1MD disc wil not be ejected from MD mechanism.
2CD disc will be ejected from CD mechanism.
2.Conditions according to the Destination
( ) Port of Microprocessor
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RD-M52MD/M72MD
5
CIRCUIT DESCRIPTION
3-2 Pin Description of Microprocessor
Pin No. Pin Name I/O Description
1 8SW2 I Detection port of 8cm disc for CD mechanism.
2 SCLK O Clock output to DSP IC(X29,IC9).
3 SENS I Sense input port from DSP IC(X29,IC9).
4 FAN/DA O Control port of fan motor.
5 DATA O Data output to DSP IC(X29,IC9).
6 XRST O Reset output to DSP IC(X29,IC9).
7 CLOK O Clock output to DSP IC(X29,IC9).
8 BYTE - Connected to ground.
9 CNVSS - Connected to ground.
10 XTIN I Clock input(32.768kHz).
11 XTOUT O Clock output(32.768kHz).
12 RESET I Reset signal input.
13 XOUT O Main clock output(1MHz).
14 VSS - Connected to ground.
15 XIN I Main clock input(1MHz).
16 VCC - Power supply.
17 NMI - Power supply.
18 u-COM CE I Detection port of AC off.
19 REM I Input port of remote control signal.
20 SCOR I Input port of sub code synchronized signal.
21 STBY RED O Standby LED(red) control terminal.
22 LCD BKLT O Control terminal of LCD back light.
23 STBY GR O Standby LED(green) control terminal.
24 LED CD O LED(CD) control terminal.
25 LED MD/TAPE O LED(MD/TAPE) control terminal.
26 CD XLAT O Latch output to DSP IC(X29,IC9).
27 ENC A I Input port of volume encoder.
28 ENC B I Input port of volume encoder.
29 MD RXD I Data input from MD mechanism microprocessor.
30 MD TXD O Transmission data output to MD mechanism microprocessor.
31 LCD SI O Data output to LCD driver.
32 LCD AO O AO control to LCD driver.
33 LCD SCL O Clock output to LCD driver.
34 LCD RST O Reset output to LCD driver.
35 SMK M/D I Discrimination port for deck and MD.
36 SQSO I Data input for CD sub Q data.
37 SQCK O Clock output for CD sub Q data.
38-40 SMK1-3 I Discrimination port of destination for TUNER.
41 STB O Strobe output to NJU3713D(X28,IC4).
42 W/R O Unused.
43 SDA I/O E2PROM data.
44 SCL O E2PROM clock output.
45 OP SW I Input port of open switch for deck(deck version only).
46 LCD CSI O CE output to LCD driver.
47 CL SW I Input port of close switch for deck(deck version only).
48 PH SW I Input port of photo sensor for deck(deck version only).
49 REC F SW I Deck forward switch input(deck version only).
50 HALF SW I Input port of half switch for deck(deck version only).
51 PLAY SW I Input port of play switch for deck(deck version only).
52 TYPE SW I Detection port for tape type(Normal/CrO2).
53 REC R SW I Deck reverse switch input(deck version only).
54 SBUSY - Unused.
55 SDATA - Unused.
56 RDS DATA I RDS data input(E/T type only).
57 TMUTE O TUNER muting control.
58 SD I Detection terminal of SD signal for TUNER.
59 ST I Detection terminal of stereo signal for TUNER.
60 PLL DATA O Data output to PLL IC.
61 PLL CLK O Clock output to PLL IC.
62 VCC - Power supply.
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RD-M52MD/M72MD
6
CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description
63 PLL CE O PLL chip enable.
64 VSS - Connected to ground.
65 PLL DO I PLL IF count input.
66 EMP/MONO O Control port of DE-emphasis.
67 AMUTE O Audio muting control.
68 SPRLY O Speaker relay control.
69 PWRRLY O Power relay control.
70 NC - Disconnected.
71 HPRLY O Relay control terminal for headphones.
72 HPDET I Detection terminal of headphones.
73 EVR CLK O Clock output to sound controller(X29,IC6).
74 EVR DATA O Data output to sound controller(X29,IC6).
75 RDS CLK I RDS clock input(E/T type only).
76 BACK CHK/ DECK SLT CL O Detection port of back up voltage for MD mechanism. (MD version)
Control port of slot closing for deck. (Deck version)
77 BACK ON/ DECK SLT OP O Power on for MD mechanism. (MD version)
Control port of slot opening for deck.(Deck version)
78 MD RST/DECK CLK O Reset of MD mechanism and the clock of expander IC for deck.
79 MD CE/DECK DATA O CE of MD mechanism and the data of expander IC for deck.
80 MSTOP I Detection port of loading end for CD mechanism.
81 LD ON O Control port of laser on.
82 SPEED O Play back output port of hi-speed for CD.
83 DC OFF O Power contro of system IC(X29,IC10) for CD.
84 LOAD OUT O Control port of loading out for CD mechanism.
85 LOAD IN O Control port of loading in for CD mechanism.
86 V/H O Control port of vertical and horizontal for CD. V/H version only
87 DINSW I Detection port of disc in for CD.
88 8SW1 I Detection port of 8cm disc for CD.
89 XY SW I Input port of sensor for vertical and horizontol. V/H version only
90 PROT I Detection port of current protection.
91 PROT TEMP I Detecttion port of temperature compensating for protection.
92 AIN LEVEL I Input port of audio signal.
93 BACKV I Input port of back up voltage for MD.
94 RDS SLEVEL I RDS signal level input(E/T type only).
95 KRO I Key return signal input.
96 AVSS - Connected to ground.
97 KR1 I Key return signal input.
98 AVREF - A/D,D/A reference voltage.
99 AVCC - A/D,D/A power supply.
100 12SW I Detection port of 12cm disc for CD.
Deck version only.
4. CD Test Mode
4-1 Entering the Test Mode
To enter the test mode, press the CD [PLAY/PAUSE] key and turn the AC on.
4-2 Cancelling the Test Mode
Turn the AC off.
4-3 Keys and Operation in the Test Mode
KEYS LCD OPERATION
CD CD TEST-03 Tracking servo off.
PLAY/PAUSE CD TEST-05 All servo on.
menu/demo –FB operation when servo on.
Sled in when servo off.
sound CD TEST-22 HI Hi speed (CD servo) when stop mode
CD TEST-22 Normal speed (CD servo) when stop mode.
set CD TEST-05 FF operation when servo on.
Sled out when servo off.
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RD-M52MD/M72MD
7
CIRCUIT DESCRIPTION
1. Setting of Continuous Playback Mode
No. Key
1
Volume/
multi-control
Select [CPLAY MODE]
2 Load disc
3 PLAY [CPLAY MID]
[c=xxxx a=yy] error
(xxxx=C1 error, yy=ADIP error)
4 MODE [CPLAY(zzzz)] CPLAY address
(MID=0300h, OUT=0700h, IN=0030h cluster)
5 MODE [h✽✽✽✽d@@@@] address
(✽✽✽✽=current head address, @@@@=ADIP address)
In No.5, Display shows [-] if can't read disc.
2. Change of Playback Points(in continuous playback mode)
No. Key
Display/Function
Display/Function
1 PLAY [CPLAY OUT]
2 Carry out No.4 and 5 in the above table.
3 PLAY [CPLAY IN]
4 Carry out No.4 and 5 in the above table.
5 STOP [CPLAY MODE]
6 EJECT Disc out
1. Continuous Recording Setting
No. Key Display/Function
1
Volume/
multi-control
Select [CREC MODE]
2 Load the recordable disc
3 PLAY [CREC MID]
4 PLAY [CREC (zzzz)] CREC address
(0300h cluster=recording start point)
5 DISPLAY [h✽✽✽✽d@@@@] address
6 DISPLAY [c=xxxx a=yy] error
7 DISPLAY [CREC (zzzz)]
8 STOP [CREC MODE]
2. Change and End of Recording Points
1 Carry out No.1 to 3 in the above table Select[CREC MID]
2
Volume/
multi-control
[CREC OUT]
3 PLAY [CREC (zzzz)] CREC address
(0700h cluster=recording start point)
Carry out No.5 to 8 in the above table
4 PLAY Select [CREC MID]
5
Volume/
multi-control
Select [CREC IN]
6 PLAY [CREC (zzzz)] CREC address
(0300h cluster=recording start point)
Carry out No.5 to 8 in the above table
7 EJECT Disc out
Starting address is the followings.
IN=30h cluster, MID=300h cluster, OUT=700h cluster
For more information on each adjustment mode, refer to
each section of 7, "Electrical adjustment".
If other adjustment mode has been entered incorrectly,
press the STOP key to exit the mode.
* The number 9 - 13 are not used for service. If these
mode have been entered incorrectly, press the STOP
key immediately to exit the mode. Specially, do not use
EEP INITIAL. (E2PROM data has initialized if used it.)
1. The recording start addresses of IN, MID, and OUT are
described below.
IN 30H cluster
MID 300H cluster
OUT 700H cluster
2. An erasure prevention control is not detected in the test
mode. Be careful not to enter the continuous recording
mode using a disc containing the data that should not be
erased.
3. Do not record continuously for more than five minutes.
4. Take care that no vibration is applied during continuous
recording.
6-6 Continuous Playback Mode
6-7 Continuous Recording Mode
5 Initializing the MD Mechanism
5-1 Initialization Method
While pressing the MD [PLAY/PAUSE] key and MD
[EJECT] key simultaneously,
turn the AC on.
6. MD Test Mode for Adjustment
6-1 Entering the Test Mode
While pressing the MD [PLAY/PAUSE] key and [rec] key
simultaneously,
turn the AC on.
6-2 Cancelling the Test Mode
Turn the AC off.
6-3 Key Operations for Adjustment
No. LCD DESCRIPTION SECTION
1 TEMP ADJU The work of adjustment is unnecessary
in this mode. 7-5
2 LDPWR ADJU Laser power adjustment. 7-6
3 LDPWR CHEC Laser power check. 7-6
4 EFBAL ADJU Traverse adjustment. 7-7
5 TE B. ADJ Automatic EF balance adjustment. -
6 FBIAS ADJU Focus bias adjustment. 7-8
7 CPLAY MODE Continuous playback mode. 6-6
8 CREC MODE Continuous recording mode. 6-7
9 STT-LIMIT Check the mechanism start limit
switch position. -
10 JUMP MODE Track jump checking mode. -
11 SRV DAT RE Servo data reading. -
12 EEP MODE E2PPROM data reading or rewrite. -
13 EEP INITIAL E2PPROM data initializing. -
KEYS OPERATION
Volume/multi- control Select mode or adjustment value change.
MD PLAY/PAUSE Fix mode or adjustment value.
STOP Cancel the selected mode and change to menu page.
menu/demo Select servo of PIT or GROOVE.
display Change-over the display mode.
SKIP UP Pickup moves outwards when pressed skip up key.
SKIP DOWN Pickup moves inwards when pressed skip down key.
LDC DESCRIPTION
> Servo on.
>> Tracking servo on.
GRV Servo groove mode.
CLV-S Rough servo clock.
CLV-A Spindle lock.
RECORD Recordable disc or no disc.
6-4 LCD Indication for Mechanism Operation
6-5 Selection of Adjustment Test Mode
Whenever the [volume/multi-control] knob is turned the
adjustment test mode is selected.
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7. Electrical adjustment
7-1 Precaution during confirmation of Laser Diode
emission
During adjustment, do not view the emission of a laser
diode from just above for confirmation. This may damage
your eyes.
7-2 Precaution on handling of Optical pick-up
(KMS-260B)
The laser diode in an optical pick-up is easy to be subject
to electrostatic destruction. Therefore, solder-bridge the
laser tap on the flexible board when handling the optical
pick-up.
When removing the flexible board from the connector,
make a solder bridge in advance, then remove the board.
Be careful not to remove the solder bridge before insert-
ing the connector. Moreover, take careful measures
against electrostatic destruction. The flexible board is cut
easily. Handle the flexible board with care.
7-3 Precaution during adjustment
1) Perform the adjustment and confirmation marked with “O”
in the order shown in the table when the parts below are
replaced.
2) In the test mode, perform the adjustment. After adjust-
ment is completed, cancel the test mode.
3) Perform the adjustment in the order described.
4) Use the following tools and measurement equipment.
•CD test disc TGYS-1
•Laser power meter
•Oscilloscope (with bandwidth of more than 40 MΩ)
(Calibrate the probe before measurement.)
•Digital voltmeter
•Thermometer
5) Take care that VC and GND (ground) are not connected
on the oscilloscope when two or more signals are moni-
tored on the oscilloscope. (VC and GND are short-circuit-
ed in this case.)
7-4 Creating the recordable continuous recording
disc
This disc is used for focus bias adjustment and error rate
confirmation. How to create the recordable continuous
recording disc is 6-7.
Optical BD board
pick-up IC6 D101 IC1,IC2,IC10
1.Temperature compen-
sation offset adjustment X O O O
2.Laser power adjustment O O X O
3.Traverse adjustment O O X O
4.Focus bias adjustment O O X O
5.Error rate confirmation O O X O
Pick-up Flexible board
Laser tap
7-5 Offset Adjustment
No. Key Display/Function
1
Volume/multi-control Select [TEMP ADJU]
2 PLAY [TEMP=xx (yy)]
(xx=compensation data, yy=setting temperature)
3
Volume/multi-control Input "yy" with present temp..
4 PLAY [TEMP=✽✽SA]
[TEMP ADJU] in writing data
7-6 Laser Power Check and Adjustment
Laser power setting in playback and recording modes.
Preparation
1. Remove the MD mechanism from the unit.
2. Connect the digital voltmeter to IOP1 and 2 on X33
pcb.
3. Remove the top plate from traverse unit.
4. Remove the magnetic head.
5. Remount the MD mechanism to the unit
+
-
Laser
power meter
Digital
voltmeter
Objective lens of
optical pick up
IOP2
IOP1
X33
ADJUSTMENT
1. Laser Power Adjustment
No. Key Display/Function
1
Volume/
multi-control
[LDPWR ADJU]
Load recordable disc
2 Load the disc and lazer on
[(0.9mW) $xx] read power
(xx=power value)
3 EJECT
PLAY
Unload the disc and laser on
44/¢Move the pickup to check the laser power with
laser power meter sensor
5
Volume/
multi-control
Adjust "xx" so that the power meter shows 0.9mW.
6 PLAY [(7.0mW) $xx] writing power
7
Volume/
multi-control
Adjust "xx" so that the power meter shows 7.0mW.
This adjustment should be carried out in15 secs.
8 PLAY Laser power off
Display shows [LDPWR ADJU] after [LDPWR<$xx]
to save the data in E2PROM
Start from No.2 if readjust.
2. Laser Power Check
No. Key Display/Function
1 Volume/multi-control
[LDPWR CHEC]
2 PLAY [(0.9mW) $xx]
(xx=0.85 to 0.95mW)
3 PLAY [(7.0mW) $xx]
Laser power meter: 7.0+-1.0mW✽
VOM:optical pickup indication value +-10%✽
In this case, lop = 82.5 mA
lop(mA) = Reading of digital voltmeter(mV)/1(Ω)
(optical pick-up label) KMS 260B
27x40
B0825
RD-M52MD/M72MD
8
CIRCUIT DESCRIPTION
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RD-M52MD/M72MD
9
CIRCUIT DESCRIPTION
1. Recordable Disc
No. Key Display/Function
1 Connect the oscilloscope to TE1 and VC in X33 pcb
2
Volume/
multi-control
Select [EFBAL ADJU]
3 Load the recordable disc
4 PLAY [EFBAL MO-W]
5 PLAY [EF=$✻✻MOW]
6
Volume/
multi-control
Write power adjustment. Adjust the waveform as follows.
7 PLAY Display shows [EF=$✻✻MOR] after [EFB=✻✻xSAVE]
to save the data in E2PROM.
Mode changes write to read
Focus and disc servo are on. Tracking servo off.
8
Volume/
multi-control
Read power adjustment. Adjust the waveform as follows.
9 PLAY Save the data in E2PROM.
Display shows [EFBAL MO-P]
PLAY Display shows [EF=$✻✻MOP]
(Pickup travels to search pits and tune the servo to on.)
10 Volume/
multi-control
Adjust the waveform as follows.
11 PLAY Display shows[EFB=✻✻xSAVE]
to save the data in E2PROM.
Display shows [EFBAL CD] disc motor stops.
12 EJECT Unload disc.
2. Pre Master Test Disc(TGYS-1)
No. Key Display/Function
1 Load the disc(TGYS-1).
2 PLAY [EF=$✻✻CD] servo is on
3
Volume/
multi-control
Adjust the waveform as follows.
4 Save the data in E2PROM.
Display shows[EFB=✻✻xSAVE] in brief time.
[EFBAL ADJU]
5 EJECT Unload disc.
No. Key Display/Function
1. CD Error Rate
1 Volume/
multi-control
[CPLAY MODE]
2 Load the test disc(TGYS-1)
3 PLAY Display shows [CPLAY MID]
Access end
[c=xxxx a=yy] xxxx=C1 error (lower 20) yy=AIDP error
4 STOP [CPLAY MODE]
5 EJECT Unload disc.
2. MO Error Rate
No. Key Display/Function
1 Volume/
multi-control
[CPLAY MODE]
2 Load the recordable disc
3 PLAY Display shows [CPLAY MID]
Access end
[c=xxxx a=yy] xxxx=C1 error (lower 50) yy=AIDP error(00)
4 STOP [CPLAY MODE]
5 EJECT Unload disc.
No. Key Display/Function
1
Volume/multi-control Select [FBIAS ADJU]
2 Load the disc.
3 PLAY [a=xx yyyy/] point a
(xx=focus bias, yyyy=C1error)
4
Volume/multi-control Adjust "yyyy" to 220 ✻
5 PLAY [b=xx yyyy/] point b
6
Volume/multi-control Adjust "yyyy" to 220 ✻
7 PLAY [xx yyyy/] point c
Check "yyyy" within 50
8 PLAY Display shows [aa bb cc(xx)] focus bias adjust
(aa=point a,bb=b,cc=c )
During this adjustment, the oscilloscope changes in units
of about 2%. Adjust so that the waveform comes nearest
to the specified value. (MO groove read power traverse
adjustment)
(Traverse waveform)
Specification : A = B
Notes :
1. Data is erased during MO write when a recorded disc is
used for this adjustment.
2. If the traverse waveform is difficult to be monitored, con-
nect an oscilloscope as shown in the figure below.
* Notes :
1. The relation between the C1 error and focus bias value
is shown in the figure below. Points “a”and “b”in the
figure are detected by the above adjustment. Focal
position “C”is automatically obtained from points “a”
and “b”by calculation.
2. The C1 error rate fluctuates. Therefore, perform the
adjustment according to the observed mean value.
7-8 Focus Bias Adjustment
Use the special disc(continuous recorded disc)
Focus bias value
C1 error
(TE1) 330kΩ
10pF
(VC)
Oscilloscope
+
-
7-9 Error Rate Check
7-7 EF Balance(Traverse Adjustment)
Connection :
TE1
VC
Oscilloscope
X33
ADJUSTMENT +
-
V: 0.5V/div H: 10ms/div
INPUT: DC mode
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RD-M52MD/M72MD
10
ADJUSTMENT
CD section
NO. ITEM INPUT
SETTINGS OUTPUT
SETTINGS CD PLAYER
SETTINGS ALIGNMENT ALIGN FOR FIG.
TEST MODE : While pressing the CD PLAY/PAUSE key ,plug the power cord into the AC power wall output.
Load the TEST DISC.
[1] LASER CURRENT
CHECK Test disc type 4
Connect the DC voltmeter
between 3and 4of CN4
on X29.
Press the PLAY/PAUSE
key to check that the
display is 03 or05. -50±20mA
[2] FOCUS ERROR
BIAS
(Set up vertically)
Test disc
type 4
Connect an oscilloscope
as follows.
CH1:RF(X29, CN4, 1)
GND:VC(X29, CN4, 2)
CH1:RF(X29, CN4, 1)
GND:VC(X29, CN4, 2)
Press the PLAY/PAUSE
key . Confirm that the
display is 05.
FE BIAS
VR 1
(V/H version
only) Optimum eye pattern
[3]
Note:
•Type 4disc: SONY YEDS -18 Test Disc or equivalent.
•Keep the step of adjustment.
FOCUS ERROR
BIAS
(Set up horizontally)
Test disc
type 4
Connect an oscilloscope
as follows. Press the PLAY/PAUSE
key . Confirm that the
display is 05.
FE BIAS
VR 2 Optimum eye pattern
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

11
PARTS DESCRIPTIONS
RD-M52MD/M72MD
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www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

12
ACEBD
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
C107
R15
R16
L6
W3
W4
W1
L1
L2
R108
C167
C163
R8
R9
R145
C141
R161
R115
R52
R125
R127
R144
R53
R3
R4
X2
W2
R186
R187
C171
C188
R166
C189 C158
C115
L7
C116
L8 C117
C105
C133
R175
R184
R188
R190
R189
R177
R180
R117 R105
R106
R158
R159
R147
R169
R137
R1
W108
W9
W12
R174
R173
R149
R123
R129
C125
R130 R128
C127 C126
W8
R116
W10
C159
EB
EB
R126 1
16
17 32
1
8
9
16
1
3
4
5
1
25
51
75 76 100
50 26
110
20 11
1
12
13 24
37
48
25
36
R109
2
3
5
1
120
10 11
1
8
1
25
26
50
51
75
76 100 1
4
5
8
24
13
12
1
1
26
EB
EB
IC12
IC3
IC8
Q2
IC2
Q6
IC6
IC5
Q1
Q4
IC1
IC7
IC4
Q9
CN5
IC24
CN1
R139
R17
R2
C46
R14
W7
L9
C160
C161
C197
C153
C156
C152
R113
C151
R138
R164
L5
R141
R181
R163
C164
R162
C168
R176
R104
L50
C198
R13
C106
R148
R150
R146
W5
C124
C135
C108
W196
C123
C122
R6
R5
R167
R165
R7
C110
C143
C144
C142
C129
C132
C131
C130
C128
C134
R103
R112
R170
R121
R110
R142
R143
R133
R134
R131
R132
R140
R135
R136
C187
C190
R171
R178
R172
R182
R183
R41
R40
L4
C200
C118
L11
W6
C121C136
C112
C113
C102
C111
C109
R185
R179
R107
C39
C38
C103
C104
C101
C37
C119
C36
C35
C169
C12
C13
C182
C31
C32
C34
C40
C185
C181
C186
C33
C41
C44
R160
R168
C170
C166
R10
R11
C184
C157
L3
R114
W11
R111
R119
C114
R120
X1
1
2
20
21
R118
R122
C120
R124
11
10
21
1
6
10
5
4
2
31
EBE
B
EB
B
E
EB
EB
E
B
O
G
I
BE
X29-2650-00 A/2
(J70-1307-02)
X29 B/2
W3
R3 R2
R1
W1
R4
W5
W4
1
4
1
11
14
Q5
Q7
Q3
Q8
IC10
Q11 Q10
D101
D1
D2
IC30
Q13
Q12
CN2
CN3
CN4
X33-1190-0X (J70-1311-12)
S5
S4
S3
S2
S1
CN1
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www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

FGIKMOHJLN
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
1413
R37
R119
R128
R130
R122
R118 R121
R38
C111
R25
R24
C108
C110
C107
C106
R129
W309
R235
R229
R223
R237
R239
R236
R203
R209
R208
R132
R131
R133
R210
R218
R220
R222
R221
R212
R211
R213
R214
R9
R19
R21
C112
R10
R22
C114
C113
R20
R15
R18
R17
R23
R16
W308
R116
R117
C9C10
R108
R101
R102
R227
R228
R232
R233
R2
R3
R1
R4
R5 R6
C1
C2
R271 R270
R33
R103
R104
R105
R106
R107
R31
C30
R32
R219
R238
R215
R216
R217
R12
W301
W306
W305
R262
R272
R273
R231
R11
R135
R136
R261
W310
R234
R8
R7
C13
C14
C109
C102
C101
C16
C15
C104
C4
C12
C11
C223
C20
C228
C3
C224
C236
C29
C115
R225
C217
C23
C21
C22
C24
C232
R240
C25
R126
R241
C116
C27
C26
C28
8
14
5
TH1
EB
EB
EB
EB
EB
EB EB
EB
EB
EB
EB
C257
C256
R250
R255
BE
R254
R252
C255
R251
R253
4
31
5
C254
R124
R115
R123
C18
C17
C105
R114 R113 R112 R111 R110
R109
R125
D39
Q5
Q6
Q105
D40
D31
D32
D24
D20
D21
Q8
Q2
Q1
Q10
Q11
D28
Q103
D15
D115
D41
IC4
D19 Q7
Q101
D26
Q13
IC7
D4
W40
R224
W66
W73
W33
W30
W91
W29
W38
W78
W79
W71
W48
W4
W76
W16
W14
W59
W64
W69
W70
W72
W52
W68
W65
W58
W12
W83
W18
W56
W27
W41
W86
W46
W50
W17 W15
W60
W2
W77
W21
W20
W5
W3
W31
W8
W1
W9
W11
W43
W51
W67
W36
W26
W37
W23
W22
W63
W62
W28
W25
W35
W85
W32
W34
W53
W55
W7 W49
W19
W89
W87
W47
W42
W74
W45
W54
SKIP
DOWN
TUNER
STOP
CD
EJECT
UP
SKIP
MD
CD
1
+7V AVR.
+9V
AVR.
AVR.
POWER AMP
I.PROTECTION
MUTE DRIVE.
FAN
DRIVE.
LCD CONT.
+10V AVR.
POWER
R204
R205
R201
R206
R120
W10
C225
C258
C221
C6
C5
C229
C205
C103
W13
W207
W210
W211
W208
W209
W212
W213
C31
C202 R259
C201
C241
R28
R27
R29
R30
R13
R14
C227
K2
K3
C8
C32
C203
C204
C238
W6
R134
R127
C208
W61
C206
C216
C218
C19
C213 C214
C219
C222
W44
C237
C212
C209
C210
R230
R207
W57
W24
C7
W201
W202
-10V
1
6
1
2
45
7
1
IO
G
GIO
5
1
12
1
2
4
5
1
13
15
1
14
15
21
BE
2
1
12
13
1
5
4
2
10
11
2
1
16
17
W75
2
F1
R258
121
K1
2
F.OFF
R256
W90
C252
R249
6
C253
1
T1
W80
C251
+5.1V AVR.
R257
MD EJECT
W39
15
H.P.
P4
REC AUX
1
2
4
5
ENTER SET
DISPLAY
MENU
BE
BE
BE
BE
EB
E
B
EB
WH5
WH2
X07-3180-00 A/5 (J70-1400-11)
X07 E/5
X07 D/5
X07 C/5
X07 B/5
D34
D30
D33
D29
D27
Q3 Q4
CN8
Q9
D108
D107
CN14
D23
IC3
Q102
S8
S2
S3
S4
S6
S1
S7 S5
A2
E2
CN9
D101
Q15
CN7
D25
CN6
J2
A1
J1
D3
D1
P1
CN3
IC6
IC1
D109
Q14
DIGITAL IN
SUPER
WOOFER
PRE OUT
L
SPEAKERS
ROPTICAL
CN5
CN4
IC5
WH4
D113
D110
D112
IC2
D2
CN15
D106
D114
E6
S16
P3
CN2
CN16 CN17
CN1
D6
D13
D5
D37
D8
D7
Q12
D10
E1 WH1
D11
D12
D102
S15
Q104
WH5
E4
WH3
PHONES
J4
D36
D35
S14 S13
E5 WH2
E3
S12 S11
D103
S10 S9
D104
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

PRTVXQSUWY
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
15 16
R91
R286
C158
C110
C109
C34
R104
R105
R110
R111
R77
C8
R76
R103
R101
R102
R125
R126
R124
R122
R123
R129
R127
R128
R115
R116
R114
R112
R120
R121
R119
R117
R118
R45
R46
R44
R43
R51
R47
R48
R35
R36
R34
R32
R33
R40
R41
R39
R65
R66
R63
R67
R68
R55
R56
R54 R52
R53
R60
R59
R57
R58
R231
R232
R283
R223
R213
R214
R211
R212
R215
R221
R222
R216
R217
W22
R301
R302
R303
R306
R304
R305
C7
R147
C9
R148
R258
R138
R139
R153
R188
R201
R186
R185
R202
R203
R204
R187
C160 C164
R154
R183
R184
R181
R182
C188
C182
C58
C65
C59
C64
C61
C187
C208
C120
C147
C148
C119
C118
C207
C243
C53
C117
C57
C69
C104
C115
C102
C103
C126 C125
C116
C131
C134 C133
C132
C68
C66
C67
C75
C74
C101
C152
C14
C16
C15
C33
C32
C50
C31
C22
C21
C23
W6
R14
R15
R11
R12
C10
R1
C12
R18
R2
W4
R16
W3
W5
C40
R26
R25
C39
R259
C130 C129
C127
C128
L5
C11
C63
W21
C174
C177
C175
C194
R161
R255
L6
L8
C226
C84
R261
R262
C153
C78
R251
R252
W13
W8
R172
R171
C46
C45
W14
C26
C105
C193
W1
C244
C146
C49
W31
R162
C176
C178
C232
R315
C231
R316
R241
R106
C172
C156
C157
C155
C235
W12
C236
C167
C210
C209
C28
C82
R253
R254
C224
C85
C225
C192
R190
R189
C25
C20
C227
C165
R317
R318
R320
R319
R49
R72
R64
R70
R71
R69
R8
R140
R141
R158
R152
R166
R165
R80
W7
R82
R81
R157
R13
C191
R313
R17
C251
C71
5
8
14
1
8
54
80 1
20
21
40
41
60
61
20
11
10 1
E
B
EB
EBEB
EB
SG
D
SG
D
SG
D
EB
EB
EB
EB
EB
EB
EB
EB
EB E
B
EB
EB
E
B
IC8
Q13
Q12
Q17
Q18
Q19
Q14 Q15
Q16
Q3
Q1
Q24 Q23
Q25
Q4
Q7
D22
D4
D2
D1
IC7
D26
IC15
D3
Q29
D25
Q30
Q6
IC9
Q22
Q20
Q21
D24
D10
Lch
IN
OUT
IN
Rch
OUT
JIGU
C81
R207
R78
C150
C72
C149
C201
C185
C205
C202
C163
C181
C171
C113
C124
C123
C114
C135
C139
C136
C143
C42
C1
C41
C3
C52
C154
C55
C35
C36
C27
C24
C2
C56
C212
X1
C140
C145 C144
R85
C76
C51
R233
R234
C169
VR2
VR1
C151
C166
R167
31
EB
X3
for
42
1
5
1
5
42
OGI
12 13
21
L7
L2
1
25
2
26
14
31
30
2
113 1 1 13
212
1
2
11
10
X2
X4
R151
C108
C107
C111
C106
C137
R107
R108 R10
R74
R73
R130
R131
R37
R38
R62
R61
R282
R281
R312
R309
R310
C4
C5
R308
R285
R307
R145
R146
R143
R144
R150
R149
R142
R137
R205
R206
C186
C62
C183
C184
C43
C77
C142
C70
C73
C237
C18
R19
C17
C238
C37
R20
R9
R7
R30
R31
R29
R27
R28
R22
R21
C38
R23
R24
C83
L4
C60
L1
R159
R257
C6
R194
R192 R191
R176
R175
R174
R173
R177
R178
R179
W11
R160
R180
C213
R242
R239
R42
R79
W2
R1
C141
C138
C19
R197
R198
C161
R238
R164
R311
C204
C203
R10
R321
R325
R243
R244
R326
R324
R323
C13
C241
C211
C112
C173
R256
C91
R113
R314
R156
R195
R196
E
B
B
E
B
E
R193
R75
1
21
22
42
1
100
81
80 51
50
31
30
18
9
16
54
28
27 1
4
1
8
5
18
4
5
IGO
4
11
13
115 113
S1
Q28
J2
IC2
J1
CN3
CN5 CN6
CN7 CN9
CN4 CN8 CN2
CN1
IC14
X29-2700-00 (J70-1405-11)
TUNER
SYSTEM CONTROLLER
CD DRIVER
SELECTOR & VOLUME
A1
IC3
IC4
MD I/O AMP.
IC5
CD DSP & DAC
E1
Q11
Q2
Q10
D21
IC11
D12
IC12
IC1
IC6
IC10
IC13
R
L
AUX
AM
GND
FM
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

ABDFHJCEG I
2
1
3
5
7
4
6
48 47 46 45 44 43 42 41 40 39 38 37
13
14
15 16 17 18
19
20
21
22 23
24
MORFO
MORFI
RFO
OPN
OPO
ADD
COMPP
COMPO
AGCI
RFAGC
RF
PEAK
GND
TEMPI
TEMPR SWDT SCLK XLAT XSTBY FOCNT VREF EQADJ 3TADJ VCC
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
I
J
VC
A
B
C
D
E
F
PD
APC
APCREF
BOTM
APCD
FE
AUX
ADFG
ADAGC
ADIN
ADFM
SE
CSLED
TE
WELAD
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
TRK-
TRK+
FCS-
FCS+
K
PD
VR
MOD
ILCC
LD-GND
VCC
J
B
A
VC
I
F
C
D
E
VEE
1
4
1234567891011
DISC ID
HEAD POSI
LOAD SW
SLT SW
LOAD M-
LOAD M+
SPDL-
SPDL+ GND
SLED- SLED+
1
2
3
4
5
6
7
8
9
10
TE1
TE2
FE2
FE1
RF
TP1
TP2
F
E
VC
1
2
3
4
5
6
7
8
9
10
DO0
DO1
XWE
XRS
A9
A0
A1
A2
A3
VCC
20
19
18
17
16
15
14
13
12
11
GND
DO2
DO3
XCA
XOE
A8
A7
A6
A5
A4
C117 0.1
C116 0.022
R180 10K
C188 0.01
R184 10K
C115 0.22
C200
10
L5
L6
0.022
C109
470K
R107
10K
R104
1000P
C106
R158 100K
R177
3.3K
R188
10K 10K
R189 3.3K
R175
C158 6800P
100K
R159
C189
0.033
R190 10K
C102
0.1
10u10
C101
+
10K
R185 47K
R179
C111 0.068
C112 4700P
R147 100
C113 1
100
R146 220 R150
23
15
4
1K
R103
10K
R110R112
47K
R113
1K 1K
R115
C108 0.1
C169 10u10
+
L8 L7
C167 0.1
2.2
R166 1
R169
1/2W
C107 0.1
R165 100K
C168 0.1
680
R164
470K
R117
3.3M
R106
R105
4.7K
4.7K
R167
C164 0.01 C163 0.01
C141 0.1
2.2K
R161
2.2K
R162
GND
VCC 5
43
2
1
C105
8
5
6
7
9
3
4
3
9
8
9
8
3
R108 1K
R109 1K
0.01
3
7
9
8
4
5
6
10u10
C119
+
C104 10u10
+
C103 10u10
+
7
6
7
6
Q2
12
11
12
11
Q2
32
34
36 37 38
31
44
43
39
43
44
39
40
37
38
36
31
32
33
34
R132
100K
0.47
C129
0.01
C128
10K
R131
100P
C130
680K R133
C132 0.47 3.3K
R135R136 1K
R134 1K
150
R140
0.015
C131
0.1
C124
10u10
+
75
74
94
91
92 93
R148
100 560
R141
20
19
18 17 16 15
14
13 12
11
1 2 3 4 5 6 7 8 9 10
0.1
C182
82
81
80
99
100u6.3
C181
+
79
78
81
80 83 82 85
89
88 86
0.1
C134
R142 10K R143 10K
C142 100P C143 100P C144 100P
C122 0.01
R121 100K
82
90
91
89
88
87
83
85
84
98
81
78
97
R7 10K
R5 10K
R125 220
R1 220
100u6.3
+
3
2
1
4
5
1
4
2 3
12
21
23
10
75
74
67
66
65
64
63
83
79
5
R137 C133
4700P C13
2P
C12
2P
C46 0.1
1M
R127
X1 1024fs
48 47
44
43
3 8 8
6
25 27
L9
68
1/4W
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
76 77 78
79
80
81
82 83
84
85 86 87 88
89
90
91
92 93
94
95 96 97 98
99
100
A/D CONVERTER
ANALOG MUX
ADIP DECODER
AUTO
SEQUENCER
EFM/ACIRC
ENCODER/DECODER
COMP
PLL
DIGITAL AUDIO SAMPLING
RATE
SERVO
DSP
PWM
GENERATOR SPINDLE
ATRAC
SERVO
I/F
4
CONVERTER
ENCODER/DECODER
4
12
BLOCK
CPU I/F
CONTROL MONITOR
MEMORY CONTROLLER SHOCK RESISTANT
PROCESSOR
SUBCODE
GENERATOR
CLOCK
BLOCK
BLOCK
68
64
65
67
66
63
100
C135
0.1
C184
33
R144 220
R145 220
40
51
50
51
50
0.1
C110
C121
L11
+
100u6.3
C136
C123
0.1
R14 3.3
28 27
R6 10K
96
92
2.2K
R163
C185
1000P
3
2
2.2uH
L50
1
R139
49
48 46 47 45
78
46
45
47
49
48
10
12
R9 100
R8 100
+3.3V+3.3V+3.3V
+3.3V
+3.3V+3.3V
+3.3V
+3.3V
+3.3V
+3.3V+B
+3.3V
+B+B
+3.3V
+B +B
+3.3V +3.3V
+3.3V +B
+B+B+B
+B
+B
+B
+B
+B
+B
0.1
C118
+B
+B +B
+B
+B
+5V
+5V +5V
+5V
+5V
+5V
+5V +5V
+B
+B
29
Q7
Q7
97
100
+5V
B
+B
+B
+B
+B
+B
HEAD POSI
LOAD M LOAD M
R1
82K
2
1
4
3
GND
2 1 4 3
SLED
SLED
2
1
GND
SPINDL
SPINDL
3
4
5
LOAD M
LOAD M
SLT SW
6
7
8
33K
LOAD SW
HEAD PO
DISC ID
9
10
R4
22K
11
R2 R3
33K
IC1
IC2
IC7
IC3
IC5
(X33-1190-XX)
(X29-) (B/2)
(X29-2650-00) (A/2)
(D40-1675-05) : MDM-06
MD MECHANISM
CN2
CN4
CN3
D101
Q1
Q4 Q5
Q6
Q3
Q7
Q2
(KMS-260B)
PICKUP
BLOCK
RF AMP
HEAD
DRIVER
ENDECODER
ACIRIC
ATPAC
4M DRAM
DIGITAL
RF
OUT
IC1 : CXA2523AR
IC2 : CXD2654R
IC3 : HD74UH08
IC5 : BD7911FV
S-24C02BFJ-TB
IC6 : BR24C02F or
IC7 : HM51W4400BTT-7 or
IC8 : BH6511FS
IC10 : L88M33T
IC12 : AK4522-VF
IC4 : TA8406F
IC24 : HD6432227N06FA
IC30 : TA8409F
Q1 : FMW1
Q2,3 : DTA144EUA
Q4,5 : DTC114YUA
Q6,8,23 : 2SA1576A(R,S)
Q7 : 2SB798-DL
Q9 : DTA124EUA
Q10-13 : DTC124EUA
D1,2 : F1J6TP
D101 : MA111
ADJUSTMENT
APC
LC32S4400T-10 or
MN41V4400TT-08
SHOCK PROOF
LD
CHANGE
-OVER
D1
D2
ON/OFF
LD
OPTICAL
EFM
10
INPUT OUTPUT
IN1 IN2
18OUT1 OUT2
3
MODE
LL
LH
MOTOR
STOP
LH
L
HH
HHL
LL
CW/CCW
BRAKE
CCW/CW
HEAD
OVER
WRITE
DIGITAL LINE
GND LINE
SIGNAL LINE
B LINE
B LINE
IC30
LOAD
SLT
DISC
REFLECTION
ID
S3
S2
S1
DISC
PROTECT
SLED
MOTOR
M
MOTOR
MOTOR
M
LOADING
M
PLAY POSI
CN1
REC POSI
S4
S5
0.3V
0.3V
2.5V
1.4V
1.6V
1.6V
1.6V
1.6V
1.4V
1.7V
1.8V
1.8V
0.3V
3.3V
3.1V
1.7V
1.7V
1.7V
0V
2.3V
0V
2.2V
1.2V
1.8V
1.6V
1.7V
1.6V
1.6V
1.7V 1.6V
1.2V
1.6V
1.9V
1.4V
1.6V
1.4V
0.4V
3.3V
0.4V
3.3V
3.2V
3.2V
3.2V
3.3V
2.8V
3.3V3.2V
2.5V
2.8V
2.5V
2.7V
2.9V
0V 3.1V
3.3V
3.1V
2.6V
1.8V
3.3V
0.2V
3.2V
0.2V
1.4V
1.4V
3.1V
3.0V
0.4V
3.1V
0.4V
0.4V
0.4V
1.6V
1.6V
3.0V
0.5V
2.9V
2.9V
3.0V
2.9V
2.9V
3.2V
1.4V
1.4V
1.6V
1.6V
3.2V
0.3V
1.6V
1.5V
1.5V
1.7V
1.9V
1.6V
1.4V
1.6V
1.4V
1.6V
1.6V
3.2V
1.7V
1.7V
3.2V
3.2V
3.2V
0.8V
1.6V
0V
0V
0.2V
3.2V
0V
0V
0.2V
0V
0.6V
3.2V
3.2V
0V
0V
0V
0V
0V
0V
3.2V
0V
3.2V
3.2V
3.1V
3.0V
3.1V
1.2V
3.1V
3.2V
3.1V
3.2V
0V
3.1V
0V
1.4V
1.0V
3.3V
3.3V
0V
0V
0V
1.2V
1.6V
1.6V
3.0V
2.9V
0.5V
3.0V
3.1V
3.1V
0.4V
0.4V
0.4V
0.4V
3.0V
2.9V
2.9V
2.9V
3.2V
1.2V
1.5V
1.6V
1.9V
3.3V
3.2V
5.1V
REC: MAX4.5V
5.1V
REC: MAX1.5V
R18 3.3
W6
+B+B
+B
+B+B
+B
)
(
)
(
RD-M72MD (X33-1190-01)
RD-M52MD-L/S (X33-1190-02)
U.K.
DESTINATION
COUNTRY No.ABB.
T
UNIT L2
YESYESNO
W8
EUROPE E 0-01
KOREA H
KOREA
EUROPE
U.K.
H
E
T,T2
0-02
COUNTRY
DESTINATION UNIT
ABB. No.
YES NO NO
W8 L2
A
A
UPC2905HF CXA1821M
L88M33T BD7911FV
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

KMOQSLNPRT
Y39-3490-51
RD-M52MD/M72MD
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
CE
MODE2
FWE
EXTAL
VSS
XTAL
VCC
STBY
NMI
RESET
MODE1
MODE0
AVCC
VREF
SCL
SDA
VCC
VSS
76 77 78
79
80
81
82 83
84
85 86 87 88
89
90
91
92 93
94
95 96 97 98
99
100
50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26
CTXD CRXD DQSY SQSY XLAT SWDT SRDT SCLK HMUTE SENS MNT3 MNT2 MNT0 MNT1 XINT TX RECP XRST LDON RMS
IDSW
HEADPOS
BITRATE
DISCINSW
SLTSW
AVSS
LOADM-
LOADM+
EMPHA
ADDARST
MUTE
POWER
FRDT
FWDT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26 H+5V
HGND
+3.3V(OUTPUT)
BACKUPV
CTXD
CRXD
BACKON
CE
MECHARST
AOUTR(DATA)
DGND
AOUTL(BCK)
-5V
DGND
GND
AINR(LRCK)
A+5V
AINL(MCK)
D+5V
DIN2
M+5V
DIN1
M+5V
MGND
DOUT
MGND
1234567
0.01
C153
23
21
L4 100uH
C161
10u10
92
91
93
94
L3 100uH
10u10
C160
C156 0.1
10uH
L1
86 85
88
89
27 25
6
8
C197 0.1
C152 0.1
C151 100u6.3
+
12 11 10 9 8 7 6 5 4 3 2 1
SDTI
SCLK
LRCK
DIF1
DIF0
AGND
VA
AINL-
AINL+
NR-
NR+
REPH
13
14
15 16 17 18
19
20
21
22 23
24
SDTO SMUTE DEM0 DEM1 NCKI VD DGND PD CMODE AOUTL AOUTR VCOM
C37 0.1
C39 4.7u25
+
C35 2200P
R3 470
C36 0.1
C38 4.7u25
+
C34 2200P
X2
10MHz
3.3K
R176
87 88
89
90
91
92
84
R182 47K R183 47K R172 47K R181 47K
0.1
C166
10
9
8 7 6
NC VS OT1 VRF IN1 1
2 4 5 3
IN2
VCC
OT2
NC
GND
4.7K
R40
1
2 3
100u6.3
C190
+
100u6.3
C187
+
10u10
C186
+
470u6.3
C1
+
32
31
8
3
6 7 8 5
2 1 4 3
39
38
10K
R170
10K
R171
0.1
C171
R52 10 R53 10
R4 470
+5V
10u10
+
0.1
0.1
10u10
C41
+
+
10u10
16 15
14
13 12
11
10
9
8
17 19 18 21 20 22 25 24 23
FACE
INTER-
PRE DRIVE
PRE DRIVE
INTER-
FACE
7
6
5
4
3 2
30 26 28 27 29 32 31
VDD
PRE DRIVE
PRE DRIVE
INTER-
FACE
INTER-
FACE
6 OSC
PUMG
CHARGE
1
PSB
R10 100
R11 100
1K
R178
15K
R126
6.8K
R120
R119 8.2K
R122
6.8K
R129
10K
220P
C114
330P
C125
C159
0.1
R130 10K
C127 470P
C157
C126 470P
R128 10K
R138
0.110
R124 15K
C120 330P
W8
10uH
L2
W9
37
41
40
47
44
43
48
R16 470K
R15 470K
66 67
C170 0.1
R168 4.7K
+5V
+5V
76
77
R17
39
37
38
66 67
31
32
+B
+B
+B
+B+B+B
+B+B+B+B
+B
+B
+B
+B
+B
+B
+B +B
R186 470K R187 470K
110K
R116
10K
R111
R114
10K
R173
R174
78
81
82 85 83 77 76 98 96
2.2
R2
R149 100
+5V
47K
100
99
10 12
10
12
R118 8.2K
27 28
97
47K
75
59
75
C33
C40
C32
C31
+5V
0.1
C44
1
+5V
+3.3V
+5V
+5V
+5V
+5V
+3.3V
+3.3V
OUT GND IN
+5V
+5V
+5V+5V
+3.3V
4.7
R160
100u6.3
C198
+
+3.3V+3.3V
+3.3V
+3.3V+3.3V+3.3V
+3.3V
R13 100
+3.3V
+3.3V
+3.3V
+3.3V +3.3V
+3.3V
+3.3V+3.3V
+B +B
+3.3V
+3.3V
+5V+5V
+5V+5V
+5V+5V
+B
+B
40
41
3.3K
R41
59
+5V
+5V+5V+5V+5V
+B
+5V
+5V
+5V
+3.3
5V5V5V5V5V5V
5V 5V 5V
5V
5V
59
59
29
97
9
810
12
16
314
13
1
+5V
+5V
+5V
+5V
+B
+5V
+5V +5V
+5V
+B
+5V
+5V+5V
+B +5V
IC24
IC8
IC12
IC30
IC10
IC6
(X33-1190-XX)
A
CN1
CN5
Q10
Q8
Q11
MD MECHA
u-COM
3.15V AVR
LOADING
MOTOR
SL/SP MOTOR DRIVE
FOC./TRA.DRIVE
3.3V AVR
DA/AD
CONVERTER
DIGITAL
REC
DIGITAL
IN2
VG
DRIVE
Q12
Q13
IN1
DIGITAL
PLAY
-M
ON
LOAD
LOAD
+M
ON
Q9
IC4
E2PROM
X29-
2/3
CN7
(1/2)
(2/2)
IC4
A
0V
3.2V
0.3V
0.3V
0.3V
0.3V
5.1V
0V
-5.4V
0V
0.6V
5.1V
5.0V
5.1V
0.6V
3.0V
5.0V
5.0V
0V
5.0V
0V
2.5V
7.2V
0V
0.3V
5.1V
0
0V
5.1V
0V
0V
5.1V
0V
0V
3.2V
0V
9.3V
0.6V
3.2V
5.1V
0.9V
0V
5.1V
0V
0.3V
5.1V
0V
0V
3.2V
3.2V
3.3V
3.3V
3.3V
3.2V
0V
0V
0V
0V
0V
0V
2.0V
3.2V
0V
3.2V
3.2V
1.3V
1.5V
3.2V
3.2V
3.3V
1.8V
0.9V
3.2V
3.1V
3.1V
3.1V
1.2V
3.0V
3.2V
3.1V
3.2V
3.2V
3.2V
0V
0V
0V
3.2V
3.1V
3.1V
3.1V
REC: 0.4V REC: 3.2V
3.2V
0V
0V
3.3V
3.3V
2.6V
0V
5.0V
1.6V
1.0V
1.6V
3.3V
3.3V
2.5V
2.5V
2.5V
2.5V
4.9V
3.2V
3.3V
1.6V
0V
1.1V
3.2V
2.5V
0V
2.5V
3.3V 5.1V
W10
)
(
)
(
RD-M52MD-L (1/3)
CAUTION: For continued safety, replace safety critical components only
with manufacturer's recommended parts (refer to parts list). indicates
safety critical components. For continued protection against risk of fire,
replace only with same type and rating fuse(s). To reduce the risk of
electric shock, leakage-current or resistance measurements shall be car-
ried out (exposed parts are acceptably insulated from the supply circuit)
before the appliance is returned to the customer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter. The measurement value may vary
depending on the measuring instruments used or on the prod-
uct. Refer to the voltage during RECORDABLE MD PLAY
unless otherwise specified; The value shown in ( ) is the volt-
age measured at the moment of STOP. The voltage followed by
(REC) refers to the value during MD RECORDING.
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

UVXZABADWYAAAC
2
1
3
5
7
4
6
IC8
(X29-270X-XX)
SW PCB (X29-2660-00)
CD MECHANISM (D40-1674-05) / CDM-34(B)
TRAVERSE UNIT (D40-1639-05)
PICKUP
A
A1
CN3
AUX IN 3
AUX OUT 4
Lch
AUX OUT 2
AUX IN 1
Rch
FM75
AM ANT
J2
GND
J1
Q10
D21
CN4
LD
ON/OFF
Q12
Q11
RF AMP
Q16
Q17
Q19
Q18
CD FOCUS BIAS
V/H CHANGE-OVER
FE BIAS
(VERTICAL)
FE BIAS
(HORIZONTAL)
CD DISC
SENSOR
LOAD
DISC SENSOR
E1
D24
B LINE
B LINE
GND LINE
SIGNAL LINE
RECORDING LINE
B
A
PD
E
C
D
F
LD
SLED MOTOR
STL SW
DISC MOTOR
Q1 D1 Q4 D4 Q2 D2 D3 Q3
(H: DISC
DETECTOR
8cm DISC
(H: DISC
DETECTOR
12cm DISC DISC IN
EXSIT)
(L: DISC
EXSIT)EXSIT)
S1
POSITION
DETECT
LOADING
STOP
LOADING
MOTOR
M
M
CN4
CN2
CN3
CN1
IC1 :
IC2 : S-80840ANY
IC3 :
IC4 :
IC5 : uPC2905HF or
IC6 : M62498AFP
IC7,11,13 : NJM2100M
IC8 : CXA1821M
IC9 : CXD3017Q
IC10 : BA5801FS
IC12 : BU1923F
IC14 : TA79005SB
Q1,4 : 2SC4081(R,S) or
2SC4116(Y,GR)
Q2,16-19 : 2SA1576A(R,S) or
2SA1586(Y,GR)
Q3,7,11 : UN5112 or
DTA124EUA
Q6,15 : UN5212 or
DTC124EUA
Q10 : 2SA1577(Q,R)
Q12 : UN5216 or
DTC143TUA
Q13 : 2SC4213(B)
Q20-22 : 2SK2158
Q28 : 2SB1640
D1,4,21,22,26 : MA111
D2 : 1SS402
D3 : UDZ3.9B
D10 : DAN202U
D12 : UDZ5.1B
D24 : DA204U
RXD-M52-L (X29-270X-XX)
RD-M72MD (X29-2702-72)
TUNER PACK (AM/FM)
CD RF3T
CHANGE-OVER
LM2940CT-5.0
Q29,30 DTC143TUA or:
UN5216
D25 : UDZ2.7B
M
1/3
CN1
X33-
20
19
18
17
16
15
14
13
12
11
VCC
L DON
LC/PD
RFE
RFO
FE
FE-BIAS
TE
VC
EO
1
2
3
4
5
6
7
8
9
10
LD
PD
A
B
C
D
VEE
F
E
EI
PLL CE S LEVEL
11
13
12
3
1
2
4GND
AM IN FM DET SD(TUNED)
4
3 6 5 8
7
10
9
Lch ST(STEREO) Rch GND +9V PLL DATA PLL CLK
2
DE-EMPH/MONO
1PLL DO
BSW2
12SW
BSW1
D IN SW
M STOP
SW 5V
SW GND
LOD+
LOD-
SLD-
SLD+
SLT SW
DM+
DM-
FCS-
TRK-
TRK+
FCS-
GND
D
B
C
A
LD
PD
VR
VC
VCC
F
E
220K100K220K 100K
100
100
C103C101
R187
220P
R181
220P
R185
R183
1K
C102 C104
220P
R182
220P
R186
R184
1K
R188
W21
59 58
94
4
65 63
61
60 66
L6
1
6
4
3
2
5
8
7
10
9
12
11
16
15
14
18
17
20
19
23
22
21
24
13
27
26
25
28
29
31
30
R2 200K
R1 200K
R11 13K
R12 30K
R9
91
10uH
L1
100u4
C1
+
10
R7
4VCC
3LD
2VC
1RF
47K
R8
Q10
5.1K
R23
15P
C5
10P
C4
1.0
R80
22K
R22
R21 30K
10K
R16
22K
VR1
22K
VR2
10K
R14
R15 10K
220
R18
22K
R17
10K
R91
R19 100
R20 100
C3 47u4
+
R13 10K
82
81
+
330u6.3
33
34
37
36
35
45
46
32
48
47
15K
R66
R65
10K
1
15K
R67
10K R68
100
R71
10K
15K
R72
87
10K
R69 88
R70
15K
R10
4.7K
Q12
VR1VR2
Q16-18
+9V
42
7
41
36
10u50
+
C113
220K
R189
10u50
+
C114
220K
R190
41
39
42
86
27
Q19
C146
1
B
+B
R4
R1
R2
LAND
SHORT
FOCUS COIL
TRACKING COIL
VCC
F
E
VC
PD
VR
LD
C
A
B
GND
D
TRK-
FCS-
TRK+
FCS+
C1
IK
VR1
C2
C3
VC
VCC
SLD-
STL SW
SLD+
DM-
DM+
GND
8SW1
DINSW
8SW2
12SW
LOD-
LOD+
GND
MSTOP
+5V
R3
W1
Q1,2,D1,2 Q4,D4 Q3,D3
1
2
3
4
5
6
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
3
2
1
4
5
7
6
9
8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
E
F
VCC
VC
VR
PD
LD
A
C
B
D
GND
FCS-
TRK+
TRK-
FCS+
DM-
DM+
SLT SW
SLD+
LOD-
LOD+
SW GND
SW 5V
M STOP
D IN SW
8SW1
12SW
8SW2
SLD-SLD- 1
SLT SW 3
SLD+ 2
DM+
SLT GND
5
4
DM- 6
1
2
3
4
5
6
7
8
9
LOD-
LOD+
SW GND
SW 5V
M STOP
D IN SW
8SW1
12SW
8SW2
E
1
VCC
3
F
2
VR
VC
5
4
LD
PD
7
6
A
8
9
C
TRK+
14
GND
12
B
10
11
D
FCS-
13
FCS+
16
TRK-
15
0-11
2-73
0-21
UNIT No.
AUSTRALIA
KOREA
EUROPE
U.K.
H
E
X
T
DESTINATION
COUNTRY
U.S.A.
GENERAL MARKET
ABB.
M
K
BC
YES
DE 165,167,169,252,254
C107,108,117,118,152,
NO
C111,
112
YES
A1
W02-2741
C151
220u16 100u16
C154
M30624MG-304FP
IC1
SI-3120F
IC3,4
NO
IC14
YES
R16-18,63,64,116,
147,241,242 232,237,238
R117,231,
NO
R118
YES
NO
NO
YES
NO
NO
YES
R120
YES
NO
YES
R121
NO
YES
R122
YES
S1
YES
15
Q12,
YES
VR1
YES
W8,31
SI-3025FNO
C
YES2-72EUROPE E
HKOREA
T
ABB.
U.K.
COUNTRY
DESTINATION UNIT No. B
100u10YES NO
W02-2742
C107,108,117,
118152,169
EDA1 C111,112,165,
167,252,254
M30624MG-303FP
IC1 IC3
NONOSI-3050F NO
15
Q12,
IC4 IC14 123,147,237,238,241,242
R16-18,63,64,116,119,120,
YES NONONO
W8,31
S1 VR1
YES
NO
R123R119
122,231,232
R117,118,121,
154
C151,
C2
Q11
YES
NO
NO
W02-2742
R221 100 R222 100 R223 100
80
+9V
0.022
C6
140
C139,
2.2u100
C253 100P
140
4.7u50
C139,
+B
+B
+B
+B
+5V
+B
+5V
+5V
+B
9.1V
5.1V
3.3V
1.6V
3.3V
2.0V
1.6V
1.6V
1.3V 1.2V
1.6V
1.6V
1.6V
2.0V
1.9V
4.2V
1.7V
1.7V
1.7V
1.7V
3.3V
1.6V
The DC voltage is an actual reading mea-
sured with a high impedance type voltmeter.
The measurement value may vary depending
on the measuring instruments used or on the
product. Refer to the voltage during PLAY
unless otherwise specified; The value shown
in ( ) is the voltage measured at the moment
of STOP.
CAUTION: For continued safety, replace safety critical components only
with manufacturer's recommended parts (refer to parts list). indicates
safety critical components. For continued protection against risk of fire,
replace only with same type and rating fuse(s). To reduce the risk of elec-
tric shock, leakage-current or resistance measurements shall be carried
out (exposed parts are acceptably insulated from the supply circuit) before
the appliance is returned to the customer.
2SA992 2
2SC1845
2SC3940A
2SD863
DTA124ESA
DTC124ESA
UN4112
2SA1048
DTA144EUA
DTC114YUA
DTC143TUA
UN5216
2SA1576A
2SA1586
2SC4116 UN4212
FMW1 2SB798-DL 2SC4081
DTA124EUA
DTC124EUA
NJM2904M LM2940CT-5.0
DAN202U DA204U UN5212
TA79005SB CXA2523AR SI-3050C
TA8409F BH6511FS BR24C02F CXD2654R HD74UH08
NJM2100M S-80840ANY
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

ANAE AG AI AK AMAF AH AJ AL
IC10
IC9
IC6
(X29-270X-XX)
(BOTTOM VIEW)
CN7
D22
Q13
Q28 +3.3V AVR
(CD)
CD SPINDLE
CONTROLLER
6ch BTL
DRIVER
BIAS
CHANGE-
V/H
Q15
IC11(1/2)
IC11(2/2)
IC13(2/2)
IC13(1/2)
OPE
AMP
D.S.P
(CD SCOR)
AMP
VOLTAGE (CD SENS)
Q22 AMP
VOLTAGE Q21
(1/2)
Lch
D3
OPE AMP
Rch
IC7(2/2)
(CD SQSO)
VOLTAGE
AMP
Q20
CN8
TRACKING
OVER
CD
VOLTAGE
A
EC
SOUND
CONTROLLER
IC7
Q29
Q30 OPE
AMP
D25
28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54
REG BASE
REG OUT
PRE VCC
POW VCC
SF OUT
SR OUT
TF OUT
TR OUT
FF OUT
FR OUT
POW GND 1
HEAT GND
POW GND 2
SPF OUT
SPR OUT
LD OUT 1R
LD OUT 1F
LD OUT 2R
LD OUT 2F
LD VCC
N.C. N.C.
VREF OUT
27
26 25
24
23
22
21
20 19 18
17
16 15
14
13
12
11
10
9 8
7
6 5
4
3
2
1
SF IN SR IN TF IN TR IN FF IN FR IN SOP IN+ SOP IN- SOP OUT BIAS PR GND REGMUT DRMUT LD IN 1R LD IN 1F LD IN 2R LD IN 2F LD CNT1 LD CNT2 C-F C-T C-S
123 4 567891011121314151617181920212223242526
H +5V
H GND
+3.3V
BACK UP
CTXD
CRXD
BACK ON
CE
RST
A IN R
D GND
A IN L
-5V
D GND
A GND
A OUT R
A +5V
A OUT L
D +5V
D IN 2
M +5V
D IN 1
M +5V
M GND
D OUT
M GND
REF AMP.
B
A
REC-B SW
TREBLE
TREBLE
VOLUME1
INPUT
ATT SW
INPUT
REC-C SW
REC-A SW
B
A
LOUDNESS
SW
SELECTOR1
INPUT TONE
VOLUME1
MAIN
MID1 BASS1
1
SURROUND
REC-C SW
REC-A SW
A
B
INPUT
ATT SW
REC-B SW
INPUT
VOLUME2
A2
VOLUME
A1
SELECTOR
VOLUME
SELECTOR
A
B
SELECTOR2
IN OUT TONE
A
A
B
B
MID2 BASS22
LOUDNESS
MAIN
VOLUME2
SW
VOLUME1
SELECTOR
MAIN
VOLUME
B
A
VOLUME
MICRO COMPUTER INTERFACE
SELECTOR
A
B
MAIN VOLUME2
42
41
39 40 38
37
36 35
34
33
32
31
30 29 28
27
26 25
24
23
22
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
1200P
C141 220P
1K
R205
2.2u50
C135
+
R207
2.2 1/4W
C232 47P
R201
6.8K
R203
10K
C125
0.1
C129
C131
0.082
10u50
C123
+
12K
R243
12K
R241
C107 1
4.7u50
C149
+
1
C111
C105 1 C109 1
C147
82P
56P
C137
0.056
0.15
C127
C133
68P
C138
68P
C148
1200P
C134
1K
R206
2.2u50
C136
+
6.8K
R202
10K
R204
0.1
C126
0.15
C130
0.056
C132
0.082
C128
10u50
C124
+
4.7u50
C150
+
C112
C108 1
12K
R244
12K
R242
1
C110
C106 1
C120
47P
C118 220P
C116 220P
220P
C142
C117 220P C115 220P
C119 47P
C145
10u50
+
C144
10u50
+
C143
47u25
+
R62 1K R61 1K
C37 1000P
C38 0.1
85
84
R79
220K
R53
1.8K
R52
0.047
R54
4.7K
R51
R55
0.01
C40
10K
C39
1.8K
22K
35
34
33
32
36
48
47
46 45
C235
22P
37
0.1
R85
1/4W
1/4W
10
R78
C35 470u4
+
28 29
30
31
32
33
220K
R56
Q14,15
100P
C213
C231
2.2
R313
100
0.33u5.5
+
C212
4.7u50
C201
+
4.7u50
C202
+
20uH
L2
L5
L4
78 79
77
30
93
29
6
57
3
28
4
1
2
31
5
68
4
7
100
R312
100
R311
39K
R320
7.5K
R318
39K
R319
7.5K
R317
100P
C209
6.8K
R308
100P
C210
R322 1K
100u10
+
3.9K
R306
4.7K
R304
3.9K
R309
R315
3.3K
100K
R301
R303
4.7K
820P
C207
C203
1200P
R305
3.9K
3.3K
R316
100K
R302
3.9K
R310
C208 820P
1200P
C204
6.8K
R307
R167
R314 10K
1/4W
2.2
41
42
7
36
73
74
A VDD
C8
PCO FILI FILO CLTV A VSS RFAC BIAS SYI ASYO A VDD IGEN A VSS ADIO RFDC CE TE
1.0
R75
C237
33P
220P
C7
R25
100K
42
41
R24
15K
C9
0.022
R35C14 0.47 48
C238
33P
44
43
42
41
C13
1000P
R34
33K
45
47
46
2700P
C16
C17
1500P
R36 1M
C15 0.01
R37 C18
0.04710K
R74
R38
3.3K
100K
50 49
52
51
3.3K
R39
54
53
57
56 55
25
SE
FE
VC
XTEL
TES1
TEST
VSS
FRDR
FFDR
TRDR
TFDR
SRDR
SFDR
SSTP
MDP
LOCK
15K 39
39 40
R26 38
37
36
35
30
32
33
32
34
33
31
30 31
27
29
28 29
28
27
26
Lch
FOK
DFCT
MIRR
C OUT
23
24
22
21
GFS
C2PO
SCOR
WFOK
XUGF
XPCK
SPOA
SPOB
XL ON
VDD
ATSK
Rch
SENS
SCLK
XLAT
CLOK
SYSM
DATA
XRST
18 19 20 14 15 16 17 12 13 10 11
R32
47K
8
R30 470 R29 470 R27 470
470
R31
8 9 6 7
220P
4 5
0.1
2 3
R28
C12
220
R42
C11
470
3
2
7
26
5
6
C236
D OUT VDD VSS
C78
R40
150
2.2
22P
C19
1000P
C43
0.1
58 60 59
A VSS 2
C22
67
BCK
LRCK
PCMD
R77
R76
2.2 2.2
61
62
EMPH
X VDD
XTAI
XTAO
65
63
64
66
15P1000P
33.8688MHz
2200P
33P
C20
X3
C23
R41
1M
C21
12P
A OUT I
X VSS
A VDD 1
C27
220u6.3
68
69
+
L OUT 1
A IN 1
A VSS 1
70
71 R81 1K
C45 100P
72
73
R47
15K
100P
C26
+
100P
C33
8
R45
15K
820P
C41
22u50 R43 9.1K
R49
1K
C31
6
547
22u50
77
L OUT 2
A IN 2
A OUT 2
C46 100P
75
74
76 R82 1K
A VDD 2
RMUT
SQSO
SQCK
LMUT 79
78
80
100P
2
330u6.3
+
C24
+
C32
820P
31
R48
15K
R46
15K
R44
9.1K
C42
C34
C10 100P
136
37
2.2
R73
26
26
14
470P
42
42
14
8
+12
0.1
C161
3
A GND
12
REC R
PLAY R
76 54
REC L
PLAY L
A +12V
BIAS
C158
0.1
11
L GND
9
M GND
10
M +12V
13
N.C
12
L +7V
+12V
+12V
+7V
C205
83
R64
180K
2.2M
R63
R57
1M
430K
R58
BIAS
GND
C50 100P
C49
C211 0.1
220u10
C36
+
+7V
+9V +9V
+7V
+7V +5V
+B
+7V
+7V+7V
+7V
+5V+5V
+7V
4.7K
R33
W8
1K
R321
1
1000P
C83
C28
2200P
100P
R323
6.2K6.2K
R324
6.8K
R325
6.8K
R326
54
100P
C244 100P
C243
L7
20uH
1
C225
C226
2.2
100P
C224
0.033
C254
+B
+5V
5V
+5V
+5V
+12V +12V
+B
+B
5V
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+5V
+B
+B
+B
5V
+5V
+5V
+B
+B
+B
+B
3.3V
0V
0V
3.3V
5.0V
3.3V
3.3V
3.9V
3.9V
3.9V
3.9V
3.3V
7.1V
3.3V
3.3V
3.3V
3.3V3.3V
3.3V
5.1V2.5V
2.5V
2.5V
2.5V
5.1V
5.1V
5.1V
5.1V
5.1V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
12.1V
7.1V
12.0V
6.8V
6.2V
3.3V
5.1V
7.1V
7.0V
1.6V
1.6V
0V
3.6V
H : 3.6V
V : 3.5V
H : 3.5V
V : 3.7V
7.1V
H : 0V
V : 4.5V
V : 0V
H : 3.0V
V : 4.6V
H : 0V
5.1V
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

AO AP AR AT AV AXAQ AS AU AW
RD-M52MD/M72MD
Y39-3490-51
IC1
IC12
IC2
IC3
IC4
IC14
IC5
(X29-270X-XX)
RD-M52MD-L (2/3)
D
E
F
G
CN2
CN1
CN5
CN6
Q7
Q6
MD BACK UP
DETECTOR
POWER
D
CN9
RDS
DEMODULATOR
Q2
D12
S1
D10
PROTECTION
DRIVER
D1
Q1
D4
D2
RESET
RESET
IC
+5V AVR
-5V AVR
(MD)
Q4
Q3
B
SYSTEM u-COM
-10V
ON/OFF
DRIVER
(Q4)
C
D26
3/3
X07-A/5
-CN5
3/3
-CN6
X07-A/5
3/3
-CN14
X07-E/5
3/3
-CN9
X07-C/5
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
1
2
3
4
5 6
7
8 9
10
11
12
13
14
15 16
17
18 19 20
21
22
23
24
25 26
27
28 29 30
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
M STOP
MD CE/DECK DATA
MD RST/DECK CLK
BACKV ON/DECK SLT OP
BACKV CHK/DECK SLT CL
RDS CLK
EVR DATA
EVR CLK
HP DET
HP RLY
PWRRLY
SPRLY
A MUTE
EMP/MONO
PLL DO
VSS
PLL CE
VCC
PLL CLK
PLL DATA
ST
SD
T MUTE
RDS DATA
ATRAC
REC GAIN
REC R SW
TYPE SW
PLAY SW
HALF SW
REC F SW
PH SW
CL SW
LCD CS1
OP SW
SCL
SDA
STB
W/R
SMK 3
SMK 2
SMK 1
SQCK
SQSO
SMK M/D
LCD RST
LCD SCL
LCD AO
LCD SI
B SW2 SCLK SENS FAN D/A DATA XRST CLOK BYTE CN VSS XT IN XT OUT RESET X OUT VSS X IN VCC NMI uCOM CE REM SCOR STBY RED LCD BKLT STBY GR LED CD LED MD/TAPE CD XLAT ENC A ENC B MD RXD MD TXD
LD ON
SPEED
DC OFF
LOAD OUT
LOAD IN
V/H
D IN SW
8 SW 1
XY SW
PROT
PROT TEMP
A IN LEVEL
BACKV
RDS S LEVEL
KRO
A VSS
KRI
AVREF
A VCC
12SW
8 7 6 5 4 3 2 1
SC OUT
C IN
VSS A
VDD A
MPX
VREF
RD DATA
QUAL
9
10
11
12
13
14
15 16
TSTLD TEST VSS D VDD D OSC1 OSC0 T57 RD CLK
11
10
9
8
7
6
5
4
3
2
1
LCD CS1
GND
STB
W/R
LCD RST
LCD AO
LCD SCL
LCD SI
+5V
-10V
DIMMER
1
2
3
4
5
6
7
8
9
10
11
12
13
ENC B
ENC A
LED CD
LED MD/TAPE
STBY GR
STBY RED
REM
LED +5V
u+5V
GND
KEY GND
KRO
KRI
5
9
11
13
10
7
8
6
1
3
4
2
12
Lch
A GND
S GND
Rch
u +5V
u GND
TUNER V
F OFF
CD +7V
CD S GND
CD R GND
CD S HOT
MD NR
MD GND
-10V
HPRLY
PROT
SPRLY
PWRRLY
D VDD
T MUTE
PROT TEMP
D GND
SPD I/F
A MUTE
HP DET
A IN LEVEL
FAN CONT
57
91
90
67
68
72
71
69
92
4
X2
X1
R198 1K
R157 10K
R107 220
1000P
C59
1M
R112
100K
R111
4.7M
R110
C57
22P
C58
22P
R109 1K
C60
0.1
10K
R113
0.1
C61
R255 1K R253 1K R251 1K R252 1K
R161 100 R162 100
C64 1000P C63 1000P
C62 470P
R156 10K
R108 470
R146 10K
5 3
2
1
7 6
26
19
8
21
22
23
24
25
27
28
R114
R124 220 45
R256 1K 46
48
R125 220 47
R126 220
R127 220
R128 220
49
50
4141
1000P
R123
R122
C68 R121 R120
C67 R119 R118
100K 100K
C66
R176 1K 34
R175 1K 33
R174 100 32
R173 100 31
42
1000P 100K 100K
100K100K1000P
100K
100K
C69
R116
R117
1000P
R115 220
C65 470P
37
36
R158 1K
79
1.2K
79
1.2K 78
78
1K
77 77
1K 76
R191
R192
R193
R194
R180 1K R177 1K R179 1K R178 1K 68
69
71
72
R142 10K
C70 1000P
73
74 75
67
R160 4.7K
66 65 60
61
63
59 58
47K
R141
R140
47K 47K
R139 R138
47K
57
47K
R137
51
R129 220
R130 220 52
R131 220 53
470P
C173
15K
R153
C75
C74
R195
R196
R148 100
R144 10K
R143 10K
88
84
85
86
87
81
82
83
92
91
15K
R154
R145
2200P
2200P
10K
100
80
93
94
13
8
10
11
12
9
6
7
5
4
1
2
3
STB
PH SW
CL SW
OP SW
SLT CL
SLT OP
TYPE SW
PLAY SW
HALF SW
REC F SW
DECK CLK
DECK DT
REC R SW
51
50
53
52
78
79
41
76
47
77
45
48
49
13
8
12
11
10
9
6
7
5
4
1
3
2
15
14
R282 100
2.2u50
C181
+
330P
2.2
R286
4.332MHz
C186
0.01
47P
C188
C187
22P
R281 47K
0.01
C184 47u6.3
C185
+
560P
C182 100
R283
R285 100
X4
C183
75 56
0.01
C73
R155 100K R152 100K
C71 0.01
4.3K
R159
4.3K
R151
4.7u50
+
C72
15K
R150 3.3K R149
R147 10K
90
97
95
4
1
C77
22
R106
100u10
C55
+
330u6.3
C56
+
10K
R105
1
R171
4.7
R172
10K
R102
100K
R103
1u50
+
C52 1K R104
1K
R101
INOUT
GND
C51
2.2u50
+
0.01
C85 47u25
C81
+
18K
R166
10K
R165
10
R164
+
C154
R231
2.7K
VO GND ON/OFF
C152
R232
2.7K
0.1
1
2
3
0.1 1/2W
ON/OFF
VREF V IN
V IN
W31
5
4
R233
VREF VO GND
2
1
4
5 3
4.7 1/4W
R234
1000P
10V
470u16
C167
+
C169
4.7 4.7
R238 R239
OUT
2 3
IN
GND 1
C165
33P
57
OUT
C164
C160 3
2
1GND
IN
33P
0.1
41
33
31
32
34
42
46
97
95
19
21
23
25
24
27
28
220
30
29
22
56
4
+
C151
for CD
MD/DECK
AMP TUNER
DECK
for CD for CD
R254 1K
DISPLAY
C140
+C139
+
330P
C193
330P
C194
1000P
C192
1000P
C191
+7V
+B
10V
+5
+5V
+5V
+5V
10V
+5V
10V 10V
10V
+5V
+B
+7V+7V
+5V
+B
+5V
+B
+7V
+9V +9V +9V
+9V
+7V
+5V
+5V
1K
1K
R197
1K
+5V
C53
0.01
R257 4.7K
54
100K
R258
100u10
C163
+
10u50
C252
+
5V
+12V
+12V
+5V
+5V
+B
+B +5V
+B
+5V
+5V
+B
+B
+5V
+5V
+B
+B
5V
+12V
+12V
+5V
+5V
+B
+5V
+5V
+5V
+5V
+5V
+12V
5V
+12V +12V
+B +B
+5V
+B
+B
+B
+B
+B
+B
+5V
+12V
+5V
5V
+5V
+B
+12V
+B
+5V
5V
7.1V
5.1V DECK : 20.0V
MD : 8.2V
DECK : 20.4V
MD : 8.7V
4.6V
4.7V
DECK VERSION : 12.1V
MD VERSION : 5.1V
DECK VERSION : 12.0V
MD VERSION : 5.1V
4.6V
4.7V
MD VERSION : 8.7V
DECK VERSION : 20.4V
4.6V
5.1V
4.7V
5.1V
DECK VERSION : 12.0V
MD VERSION : 5.1V
DECK VERSION : 20.4V
MD VERSION : 8.4V
5.1V
4.7V
-9.3V
-10.0V
-10.0V
4.9V
7.1V5.1V
5.1V
: 12.1V
DECK VERSION
MD VERSION
: 5.1V
-10.0V
7.1V
9.1V
5.1V
: 8.7V
: 20.4V
DECK VERSION
MD VERSION
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!

AY BA BC BE BGAZ BB BD BF BH
2
1
3
5
7
4
6
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
AUDIO L
AUDIO GND
AUDIO R
S GND
TUNER +9V
U GND
U+5V
F.OFF
+7V GND
+7V GND
CD+7V
CD+7V
MD GND
MD/DECK +B
-10V
13
12
11
10
9
8
7
6
5
4
3
2
1
DGND
DVDD
SPD I/F
T.MUTE
PROT TEMP
PROT
A MUTE
SP.RELAY
POWER RELAY
HP RELAY
HP DET
AIN LEVEL
FAN CONT
15
14
13
12
11
10
9 8
7
6 5
4
3
2
1
Rch VCC Rch IN Rch NF Rch MUTE Rch GND Lch IN Lch NF Lch MUTE Lch GND VEE Lch OUT Lch VCC Rch OUT
C30 C29
470P
C16
C4 1000P
R6 20K
C3 1000P
R5 20K
1K
R7
C6
10u25 360
R10
C5
10u25
470P
C15
360
R9
20K
R11
20K
R12
2.2K
R4 1K
R8
22K
R2 22K
R1
2.2K
R234
2.2K
R233
2.2K
R3
R235 2.2K
R14
0.22 2W
R13
0.22 2W
4.7K
R20
4.7K
R19
4700P
C12
4700P
C11
10K
R17 10K R18
560
R232
4.7K
R230
10K
R228
C227
10u25
1K
R227 4.7K
R219
10K
R218
47u35
C229
+
2200u35
C201
+
2200u35
C202
+
0.1
C205C206
0.01
C203
+
C204
+
0.01
C208
1
2
3
4
5
6
7
R21 47K R22 47K
K2
1
2
3
5 4
K1
100K
R251
0.056
330K
R253
R250
1M
R252
2.2
C256
C253 47u25
+
C251
+
10K
R255
4.7K
R254
CN16CN17
F1
T1
2
1
12
3.3M
R258
1/2W
: AC240V~ 50Hz
: AC230V~ 50Hz
(H,X)
(T,E)
: AC110-120V/220-240V~
50/60Hz
(M)
2.2
C2
2.2
C1
R241 6.2K
47K
R229
C237
C116 1000P
470
R37
10P
C13
1K
R15
47010P
C14 R38
0.01
C228
10K
R217R215
10K
INOUT
GND
C258 10u50
+
R205
1.0
R207
1.0
1/4W 1/4W
47K
R237
47K
R236
47K
R238
1K
R16
R23
6.8K
R24
6.8K
2.2u50
C19
+
100K
R25
5
4
1
2
3
GND OUT IN ON/OFF
1.0 1/4W
R201
47u25
C212
+
OUT
IN
GND
10
R204
1/4W
0.1
C219
10u50
C221
+
3
21
10K
R216
587
64
1K
R208
2200P
C223
C224
0.01
4.7K
R209
4.7K
R213
10u50
C225
+
2
1
4.7K
R211
10K
R214
4.7K
R206
1/4W
C238
ON/OFF GND
2
1
OUT
4
3
IN
5
0.1
C217
430
R203
1.2K
R225
100
R272
C214
1000P
100
R273 6
5
4
3
2
1
9
8
0.1
C213
4.7K
R262 TH1
12
13
11
R239
4.7K
R22010K
R221
82
R224
1/4W
2
5
4
3
1
4700P
C10 4700P
C9
820
1000P
R32 5.6K R31 5.6K
C20
R33
0.22
C32 C8 2.7 1W
R30
0.22
C31 2.7 1W
R29
C7
K3
1
2
3
OPT OUT
+5V
GND
OPT IN
GND
+5V
3
2
1
W212
W211
W210
W209
W208
W207
10
R259
3.3K
R271
3.3K
R270
C232 0.1
C241 100u10
+
4.7K
R222 10K
R223
R27
330 1W
330 1W
R28
3
1
6
12
11
13
10
3
4
C255
+B
C254 1000P
R256
R249
0.1
C252
R257
C257 0.01
+10V
+10V
10V
10V
10V
10V
10V
+9V +9V
+9V +9V +9V
+9V
+7V +7V
+7V
+7V
+7V
+7V
+7V
+7V
2
10
3
2
4
65
9
8
5
3
1
R240
2.2K
+B
220K
R212
1K
47P
C236
Q11
W202
W201
+B
+B
+B
+B
+B
+B
+B
+B
+B
B
+B
+B
+B +B
+B
+B
+B
+B
+B
+5V
+B
+B
+B+B
+B
BB
+B
+B
B
+B
B
+B
+B
+B
+5V
+B
B
+B
+B +B B
+B B +B
B
+B
+5V
+B
+B +5V
CN5
CN6
WH1
(BOTTOM VIEW)
Q7
Q1
Q2
Q3
D31
Q4
D32
Q8
D25
MUTING
MUTING
Q5
Q6
D29
D30
PROTECTION
D1
D2
D3
CN3
CURRENT
PROTECTION
J1
1
D4
D7 D8
Q12
D10
D6
Q13
D5
D13
CN1
CN2
P3
RELAY
DRIVER
2
E1
DC
+10V AVR
D33
D34
D26
+9V AVR
-10V AVR
IC4 (1/2) IC4 (2/2)
CN8
Q9
FAN
CONTROL
+7V AVR
FAN CONTROL
D19
D20
D21
D24
POWER AMP
POWER IC
MUTING
D23
D27
Q10
J2
A1 (W02-2732)
CN7
A1 (W02-2731)
SUPER
WOOFER
Q14
Q15
D28
Q11
F.OFF
+5.1V
AVR
D11
D12
2/3
X29-
CN2
CN5
2/3
X29-
2/3
CN6
X29-
X29-
2/3
CN1
CN4
D37
SP.RELAY
DRIVER
P1
Lch
Rch
RELAY
DRIVER
OPTICAL
CONTROLLER
FAN
IC1
IC7
(X07- ) (B/5)
(X07-3XXX-XX) (A/5)
IC6
IC2
IC5
IC3
F
D
E
G
TUNER
MODE : 9.1V
5.1V
7.1V
7.1V
DECK : 20.4V
MD : 8.7V
-10.0V
5.1V 13.4V
9.1V
13.5V
: 0.6V
FAN OFF
7.1V
7.1V 13.5V
4.9V
-10.0V
10.0V
25.2V
-25.7V
4.9V 4.9V
25.4V
25.4V
-25.7V
13.5V
DECK VERSION : 20.4V
MD VERSION : 8.7V
10.0V
5.1V
POWER ON :3.8V
STANDBY : 0V
4.4V
23.4V
23.4V
4.4V
5.0V
5.1V
www.freeservicemanuals.info
1/20/2020
Digitized in Heiloo the Netherlands
Not for sale!