Page 1
SERVICE MANUAL MODEL: LM-M1030A/D/X, LMS-M1030
REVISION
3CD CHANGER
HI-FI SYSTEM
SERVICE MANUAL
MODEL: LM-M1030A/D/X, LMS-M1030
Page 2
- 1-1 -
CONTENTS
SECTION 1. GENERAL
• SERVICING PRECAUTIONS 1-2
• ESD PRECAUTIONS 1-4
• SPECIFICATIONS 1-5
SECTION 2. ELECTRICAL
• ADJUSTMENTS 2-1
• TROUBLESHOOTING 2-3
• WAVEFORMS OF MAJOR CHECK POINT 2-15
• BLOCK DIAGRAM 2-27
• SCHEMATIC DIAGRAMS 2-29
• WIRING DIAGRAM 2-37
• PRINTED CIRCUIT DIARGAMS 2-39
• INTERNAL BLOCK DIAGRAM OF IC’s 2-49
• REPAIRS REGARDING CD MECHANISM 2-58
SECTION 3. EXPLODED VIEWS
• CABINET AND MAIN FRAME SECTION 3-1
• TAPE DECK MECHANISM: AUTO STOP DECK(OPTIONAL) 3-3
• TAPE DECK MECHANISM: AUTO REVERSE DECK 3-5
• CD MECHANISM 3-7
SECTION 4. SPEAKER 4-1
SECTION 5. REPLACEMENT PARTS LIST
5-1
Page 3
❏ SERVICING PRECAUTIONS
NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use.
2) The pick-up should never be subjected to external pressure or impact.
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction and/or
damage to the printed-circuit board.
3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason
the adjustment point and installation screws should absolutely never be touched.
4) Laser beams may damage the eyes!
Absolutely never permit laser beams to enter the eyes!
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
5) Cleaning the lens surface
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a
cotton swab should be used, taking care not to distort this.
6) Never attempt to disassemble the pick-up.
Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do
not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of
this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
- 1-2 -
Storage in conductive bag
Drop impact
NEVER look directly at the laser beam, and don’t let
contact fingers or other exposed skin.
Magnet
How to hold the pick-up
Pressure
Pressure
Cotton swab
Conductive Sheet
SECTION 1. GENERAL
Page 4
NOTES REGARDING COMPACT DISC PLAYER REPAIRS
1. Preparations
1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These
components are sensitive to, and easily affected by, static electricity. If such static electricity is high
voltage, components can be damaged, and for that reason components should be handled with care.
2) The pick-up is composed of many optical components and other high-precision components. Care must
be taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong
magnetism is present, or where there is excessive dust.
2. Notes for repair
1) Before replacing a component part, first disconnect the power supply lead wire from the unit
2) All equipment, measuring instruments and tools must be grounded.
3) The workbench should be covered with a conductive sheet and grounded.
When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is
because there is the possibility of damage by static electricity.)
4) To prevent AC leakage, the metal part of the soldering iron should be grounded.
5) Workers should be grounded by an armband (1MΩ)
6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent
static electricity changes in the clothing to escape from the armband.
7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.
CLEARING MALFUNCTION
You can reset your unit to initial status if malfunction occur(button malfunction, display, etc.).
Using a pointed good conductor(such as driver), simply short the RESET jump wire on the inside of the
volume knob for more than 3 seconds.
If you reset your unit, you must reenter all its settings(stations, clock, timer)
NOTE: 1. To operate the RESET jump wire, pull the volume rotary knob and release it.
2. If you wish to operate the RESET jump wire, it is necessary to unplug the power cord.
- 1-3 -
Armband
Conductive
Sheet
Resistor
(1 Mohm)
Resistor
(1 Mohm)
VOLUME KNOB
UP
DOWN
VOLUME
RESET jump wire
Page 5
❏ ESD PRECAUTIONS
Electrostatically Sensitive Devices (ESD)
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components
commonly are called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated
circuits and some field-effect transistors and semiconductor chip components. The following techniques should
be used to help reduce the incidence of component damage caused by static electricity.
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off
any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a
commercially available discharging wrist strap device, which should be removed for potential shock reasons
prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive
surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can
generate electrical charges sufficient to damage ESD devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESD
devices.
6. Do not remove a replacement ESD device from its protective package until immediately before you are ready
to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive materials).
7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the
protective material to the chassis or circuit assembly into which the device will by installed.
CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER
SAFETY PRECAUTIONS.
8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion
such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can
generate static electricity sufficient to damage an ESD device).
CAUTION. GRAPHIC SYMBOLS
THE LIGHTNING FLASH WITH APROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS
INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED
“DANGEROUS VOLTAGE” THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF
ELECTRIC SHOCK.
THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE
SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE
LITERATURE.
- 1-4 -
Page 6
- 1-5 -
❏ SPECIFICATIONS
LM-M1030A/D/X
LMS-M1030
Page 7
- 1-6 -
MEMO
Page 8
- 2-1 -
TAPE DECK ADJUSTMENT
1. AZIMUTH ADJUSTMENT
Figure 1. Azimuth Adjustment Connection Diagram
CH1 CH2
Speaker Out
Playback Mode
Head
Test Tape
MTT-114
L ch
R ch
GND
Dual-trace
synchroscope
Electronic
Voltmeter
L out
R out
Unit
❏ ADJUSTMENTS
This set has been aligned at the factory and normally will not require further adjustment. As a result, it is not
recommended that any attempt is made to modificate any circuit. If any parts are replaced or if anyone tampers
with the adjustment, realignment may be necessary.
IMPORTANT
1. Check Power-source voltage.
2. Set the function switch to band being aligned.
3. Turn volume control to minimum unless otherwise noted.
4. Connect low side of signal source and output indicator to chassis ground unless otherwise specified.
5. Keep the signal input as low as possible to avoid AGC and AC action.
Deck Mode Test Tape Test Point Adjustment Adjust for
A Deck Playback MTT-114 Speaker Out
DECK Screw
Maximum
Azimuth Screw
B Deck Playback MTT-114 Speaker Out Azimuth Screw Maximum
2. MOTOR SPEED ADJUSTMENT
Figure 2. Motor Speed Adjustment Connection Diagram
Head
Playback Mode
Unit
Speaker Out
GND
L out
R out
Record/Playback
head
Test Tape
MTT-111
Frequency Counter
Deck Mode Test Tape Test Point Adjustment Adjust for Remark
Normal Speed MTT-111 Speaker Out VR501 3kHz ± 1% A Deck
HI-Speed MTT-111 Speaker Out more than 5.4kHz HI-Speed Dubbing Mode
SECTION 2. ELECTRICAL
Page 9
- 2-2 -
3. RECORD BIAS ADJUSTMENT
Head
Unit
PN202
GND
Record/Playback
head
Test Tape
MTT-5511
Record/Playback
and Pause Mode
Frequency Counter
Deck Mode Test Tape Test Point Adjustment Adjust for
Rec/Pause MTT-5511
ERASE HEAD
L203
60kHz±5kHz (Auto stop)
WIRE(PN202) 85kHz±5kHz(Auto Reverse)
Figure 3. Record Bias Adjustment Connection Diagram
Page 10
- 2-3 -
❏ TROUBLESHOOTING
TURN ON CD
CONNECTOR CHECK ( PN808,PN807 )
CHECK POWER SUPPLY CIRCUIT( PN808 )
CHECK MICOM INTERFACE CIRCUIT( PN807 )
CHECK MICOM INTERFACE CIRCUIT( PN807 )
CONNECTOR CHECK(PN801,PN802)
CHECK PICKUP MOVEMENT
CHECK BA5810FP (IC803)
CHECK MN6627933CG (IC801)
CHECK AN22004 (IC802)
CONNECTOR CHECK (PN808)
CONNECTOR CHECK
( PN808,PN807,PN802,PN801 )
OPEN CLOSE CHECK
“ READING ”
DISPLAY CHECK
READING OK CHECK
IF PLAY, AUDIO
OUTPUT CHECK
OK
NO
NO
NO
NO
YES
YES
YES
YES
YES
• CD PART
Page 11
- 2-4 -
• OPEN CLOSE NG
CONNECTOR LOCKING CHECK ( PN808,PN807 )
DEFECTIVE MAIN
POEWR SUPPLY
DEFECTIVE MICOM
DEFECTIVE IC803
DEFECTIVE
MECHANISM
CHECK POWER SUPPLY CIRCUIT( PN808 ,PN807)
PN808 PIN 5 = 6.2V, PIN 7 = 5V
PN807 PIN 1 = 5V
CHECK VOLTAGE CHANGE OF OPEN CLOSE ,
AND BTLMUTE VOLTAGE(= 5V)
(PN807 PIN 20:OPEN, 19:CLOSE, 4:BTLMUTE)
CHECK VOLTAGE CHANGE LO+, LO- OF IC803
(PN807, PIN OPEN:20, CLOSE:19)
YES
YES
YES
NO
NO
NO
NO
Page 12
- 2-5 -
• “ READING ” DISPLAY CHECK
(= ONLY “CD “DISPLAY)
CONNECTOR LOCKING CHECK
(PN808,PN807,PN802,PN801 )
DEFECTIVE CONNECTOR OR
MAIN POWER SUPPLAY
DEFECTIVE IC805
DEFECTIVE MICOM OR
CONNECTOR
DEFECTIVE MICOM OR
CONNECTOR
DEFECTIVE IC801
CHECK VOLTAGE THE PIN 2 OF IC805
IC805 PIN2 : 3.3V
CHECK RESET SIGNAL OF PN807
PN807 PIN12 : 5V
CHECK POWER SUPPLY
PORT( PN808 ,PN807)
PN808 PIN 5 = 6.2V, PIN 7 = 5V
PN807 PIN 1 = 5V
CHECK POWER SUPPLY
PORT( PN808 ,PN807)
PN808 PIN 5 = 6.2V, PIN 7 = 5V
PN807 PIN 1 = 5V
CHECK MICOM INTERFACE
CIRCUIT( PN807 )
PN807 PIN 11,13,14,15 SIGNAL CHECK
(11: STAT, 13: MDATA, 14:MCLK, 15:MLD)
CHECK THE WAVE FORM #1
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Page 13
- 2-6 -
• READING OK CHECK
(= “NO DISC” DISPLAY)
AAAA
BBBB
CCCC
DDDD
EEEE
CONNECTOR LOCKING
CHECK(PN801,PN802)
DOES SLED MOVE ?
CHECK PN802 PIN 3,4( SL+,SL-)
DEFECTIVE PICKUP OR
IC803 OR IC801 OR IC802
DEFECTIVE PICKUP OR
IC803 OR IC801 OR IC802
DEFECTIVE PICKUP OR
IC803 OR IC801
DEFECTIVE PICKUP OR
IC802
DEFECTIVE PICKUP OR
IC803
DEFECTIVE PICKUP OR
IC803 OR IC801 OR IC802
CHECK PN802 PIN 10( LD )
CHECK PN801 PIN 14,15
(TA- ,TA+)
CHECK PN802 PIN
5,6( SP+,SP-)
CHECK PN801 PIN 13,16
( FA-, FA+)
DOES LENSE MOVE ?
(= UP & DOWN)
DOES LASER LIGHT ?
DOES SPINDLE ROTATE ?
IS READING OK ?
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Page 14
- 2-7 -
CHECK PN802 CONNECTOR LINE
DEFECTIVE IC801
DEFECTIVE IC803
DEFECTIVE PN802
CONNECTOR
DEFECTIVE PICKUP
SLED MOTOR
• READING OK CHECK #A
(= “NO DISC” DISPLAY)
AAAA
DOES SL+ WAVEFORM APPEAR AT
( IC803 PIN14 AND PN802 PIN3)
WAVEFORM #2
SLED MOTOR WAVE
DOES SLIN WAVEFORM
APPEAR AT
( IC803 PIN 5)
WAVEFORM #2
SLED DRIVE WAVE
YES
YES
NO
NO
NO
NO
NO
Page 15
- 2-8 -
CHECK PN801 CONNECTOR LINE
DEFECTIVE IC801
DEFECTIVE IC803
DEFECTIVE PN801
CONNECTOR
DEFECTIVE PICKUP
FOCUS ACTUATOR
• READING OK CHECK #B
(= “NO DISC” DISPLAY)
BBBB
DOES FA+ WAVEFORM APPEAR AT
( IC803 PIN15 AND PN801 PIN16)
WAVEFORM #3
FOCUS COIL DRIVE WAVE
DOES FAIN- WAVEFORM
APPEAR AT
( IC803 PIN 26)
WAVEFORM #3
FOCUS DRIVE WAVE
YES
YES
NO
NO
NO
NO
NO
Page 16
- 2-9 -
CHECK PN801 CONNECTOR LINE
DEFECTIVE IC805
DEFECTIVE IC802
DEFECTIVE Q801 OR
D811
DEFECTIVE PN801
CONNECTOR
DEFECTIVE PICKUP
LASER PART
• READING OK CHECK #C
(= “NO DISC” DISPLAY)
CCCC
IS ?V APPLIED TO PIN10 OF
PN801
LASER SUPPLY VOLTAGE CHECK
IS 3.3 V APPLIED TO
PIN3 OF IC802
RF IC SUPPLY VOLTAGE
CHECK
IS 2.0 V PIN2 OF IC802
LASER CONTROL
VOLTAGE CHECK
YES
YES
NO
NO
NO
NO
NO
NO
Page 17
- 2-10 -
CHECK PN802 CONNECTOR LINE
DEFECTIVE IC801
DEFECTIVE IC803
DEFECTIVE PN802
CONNECTOR
DEFECTIVE PICKUP
SPINDLE MOTOR
• READING OK CHECK #D
(= “NO DISC” DISPLAY)
DDDD
DOES SP+ WAVEFORM APPEAR AT
( IC803 PIN12 AND PN802
PIN6)WAVEFORM #4
SPINDLE MOTOR DRIVE WAVE
DOES SPIN WAVEFORM
APPEAR AT( IC803 PIN 6)
WAVEFORM #4
SPINDLE DRIVE WAVE
YES
YES
NO
NO
NO
NO
Page 18
- 2-11 -
EEEE
CHECK PN802 CONNECTOR LINE
DOES ARF SIGNAL APPEAR?
(IC802 PORT 8)
WAVEFORM #6
DOES FE, TE SIGNAL APPEAR?
(IC802 PORT FE:23, TE:21)
WAVEFORM #6
DEFECTIVE IC801
DEFECTIVE IC803
DEFECTIVE PN802
CONNECTOR
DEFECTIVE PICKUP OR
IC802
DEFECTIVE PICKUP OR
IC802
DEFECTIVE IC801
• READING OK CHECK # E
(= “NO DISC” DISPLAY)
DOES TA+ WAVEFORM APPEAR AT
( IC803 PIN17 AND PN801 PIN15)
WAVEFORM #5
TRACKING COIL DRIVE WAVE
DOES TAIN- WAVEFORM
APPEAR AT
( IC803 PIN 23)
WAVEFORM #5
TRACKING DRIVE WAVE
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
Page 19
- 2-12 -
• CD PART VOLTAGE SHEET
IC PIN NO. STOP CD-DA PLAY MP3 PLAY
IC801 1 0 0 3.3
MN6627933CG 2 0 0 3.3
3 0 0 3.3
4 0 0 3.3
5 3.3 3.3 3.3
6 0 0 3.3
700 0
8 0 0 3.3
9 0 0 3.3
10 0 0 3.3
11 0 0 3.3
12 0 0 3.3
13 0 0 3.3
14 3.3 3.3 3.3
15 3.3 3.3 3.3
16 3.3 3.3 3.3
17 3.3 3.3 3.3
18 3.3 3.3 3.3
19 0 0 3.3
20 0 0 3.3
21 0 0 3.3
22 0 0 3.3
23 3.3 3.3 3.3
24 0 0 0
25 0 0 3.3
26 0 0 0
27 0 0 0
28 1.5 1.5 1.5
29 1.6 1.5 1.6
30 3.3 0 3.3
31 1.6 1.6 1.6
32 0 0 0
33 0 0 0
34 0 0 0
35 1.6 1.6 1.6
36 0 0 0
37 1.6 1.7 1.7
38 0 0 0
39 3.3 3.3 3.3
40 1.6 1.6 1.6
41 1.6 1.6 1.6
42 1.6 1.6 1.6
43 1.6 1.6 1.6
44 2.3 2.3 2.3
45 1.5 1.5 1.5
46 0 3.3 3.3
47 3 0 0
48 0 0 0
49 0 0 0
50 3.3 3.3 3.3
IC PIN NO. STOP CD-DA PLAY MP3 PLAY
51 0.8 0.8 0.8
52 1.6 1.6 1.6
53 1.6 1.6 1.6
54 3.3 3.3 3.3
55 1 1.4 1
56 1 1.4 1
57 0 0 0
58 1.6 1.6 1.6
59 0 0 0
60 1.6 1.6 1.6
61 3.3 3.3 3.3
62 0 0 0
63 0 0 0
64 0 0 0
65 0 0 0
66 0 0 0
67 1.5 1.5 1.5
68 0 0 0
69 0 0 0
70 0 0 0
71 1.1 1.1 1.1
72 2.8 2.8 2.8
73 0 0 0
74 2.9 2.9 2.9
75 0 0 0
76 0 0 0
77 0 0 0
78 0 0 0
79 1.6 1.6 1.6
80 0 0 3.3
81 2.9 2.9 2.9
82 3.3 3.3 3.3
83 0 0 0
84 1.6 1.5 1.5
85 1.6 1.6 1.6
86 3.3 3.3 3.3
87 1.5 1.5 1.5
88 0 0 3.3
89 0 0 3.3
90 0 0 3.3
91 0 0 3.3
92 0 0 3.3
93 0 0 3.3
94 0 0 3.3
95 0 0 3.3
96 0 0 3.3
97 0 0 3.3
98 3.3 3.3 3.3
99 0 0 3.3
100 0 0 3.3
Page 20
- 2-13 -
IC PIN NO. STOP CD-DA PLAY MP3 PLAY
IC802 100 0
AN22004A 2 2.8 2 2
3 3.3 3.3 3.3
400 0
5 0 2.3 2.3
6 1.6 2 2
7 1.3 1.6 1.6
8 0.4 1.5 1.5
9 1.3 1.5 1.5
10 1.5 1.5 1.5
11 1.5 2 2
12 1 1 1
13 0 0 0
14 0 0 0
15 3 0 0
16 0 3.3 3.3
17 0 0 0
18 1.6 1.6 1.6
19 1.6 1.6 1.6
20 1.6 1.6 1.6
21 1.6 1.6 1.6
22 1.6 1.6 1.6
23 1.6 1.6 1.6
24
0 (*CD-RW: 3.0) 0 (*CD-RW: 3.0) 0 (*CD-RW: 3.0)
25 1.6 1.6 1.6
26 1.6 1.6 1.6
27 1.6 1.7 1.6
28 1.6 1.7 1.6
29 1.6 1.7 1.6
30 1.6 1.7 1.6
31 1.6 1.7 1.6
32 1.6 1.7 1.6
IC PIN NO. STOP CD-DA PLAY MP3 PLAY
IC803 100 0
BA5810FP 200 0
3 1.5 1.5 1.5
4 3.6 3.7 3.7
5 1.6 1.6 1.6
6 1.6 1.6 1.6
7 6.2 6.2 6.2
8 6.2 6.2 6.2
900 0
10 0 0 0
11 3.2 3.4 3.4
12 3.2 3 3
13 3.2 3.2 3.2
14 3.2 3.2 3.2
15 3 2.8 2.8
16 3.3 3.4 3.4
17 3.2 3.2 3.2
18 3.2 3.2 3.2
19 0 0 0
20 6.2 6.2 6.2
21 3.6 3.7 3.7
22 1.6 1.6 1.6
23 1.6 1.6 1.6
24 1.6 1.6 1.6
25 1.6 1.6 1.6
26 1.6 1.6 1.6
27 1.6 1.6 1.6
28 1.6 1.6 1.6
Page 21
- 2-14 -
IC PIN NO. STOP CD-DA PLAY MP3 PLAY
IC804 1 3.3 3.3 3.3
M12L16161A 2 0 0 3.3
3 0 0 3.3
400 0
5 0 0 3.3
6 0 0 3.3
7 3.3 3.3 3.3
8 0 0 3.3
9 0 0 3.3
10 0 0 0
11 0 0 3.3
12 0 0 3.3
13 3.3 3.3 3.3
14 3.3 3.3 3.3
15 3.3 3.3 3.3
16 3.3 3.3 3.3
17 3.3 3.3 3.3
18 3.3 3.3 3.3
19 0 0 3.3
20 0 0 3.3
21 0 0 3.3
22 0 0 3.3
23 0 0 3.3
24 0 0 3.3
25 3.3 3.3 3.3
26 0 0 0
27 0 0 3.3
28 0 0 3.3
29 0 0 3.3
30 0 0 3.3
31 0 0 3.3
32 0 0 3.3
33 0 0 0
34 3.3 3.3 3.3
35 0 0 3.3
36 3.3 3.3 3.3
37 0 0 0
38 3.3 3.3 3.3
39 0 0 3.3
40 0 0 3.3
41 0 0 0
42 0 0 3.3
43 0 0 3.3
44 3.3 3.3 3.3
45 0 0 3.3
46 0 0 3.3
47 0 0 0
48 0 0 3.3
49 0 0 3.3
50 0 0 0
IC PIN NO. STOP CD-DA PLAY MP3 PLAY
IC805 100 0
UTC LD1117A 2 3.3 3.3 3.3
3 4.77 4.6 4.6
Page 22
- 2-15 -
• CD PART WAVEFORMS OF MAJOR CHECK POINT
# X. MICOM INTERFACE WAVEFORM
(PN807 pin XX, X3, X4, X5) during n ormal play
#2. S LED DRIVE AND MOTOR WAVEFORM
(IC803 pin 5, X4) wh en foc us se arch
#3. F OCUS DRIVE AND MOTOR WAVEFORM
(TP86X, IC803 pin X5)
;
When focus se arch f ailed or t here is n o disc on tray
;
There is disc on tray and f ocus search success
PN807: MLD
PN807: MCLK
PN807: MDATA
PN807: STAT
IC803: SLIN
IC803: SL+
TP86X
IC803: F A+
TP86X
IC803: F A+
Page 23
- 2-16 -
#5. T RACK DRIVE AND MOTOR WAVEFORM
(TP860, IC8 03 pin 23) durin g normal p lay
#4. SPINDL E DRIVE AND MOTOR WAVEFORM
(IC803 pin 6, 2) wh en TOC reading
IC803: SPIN
IC803: SP+
TP 860
IC803: TA+
#6. RF, TRA CKING AND FOCUS ERROR WAVEFORM
(IC802 pin 8, 2 , 23) d uring normal play
IC802: ARF
IC802: TE
IC802: F E
Page 24
- 2-17 -
• MAIN SET
VKK PART
Does DC - 33V appear at
CN302 Pin .
Check the voltage of
IC301 pin87
Dose -33V appear at
ZD902(-)
Check Q903
TURN ON
Check the pattern
Replace Q903
Refer to power circuit
END
Check the -33V(Lower)
of C916(-)
Replace the ZD902
Replace D912, D911
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
P-SENS PART
Does +5V appear at
ZD901(+)?
Check the pattern of
IC301 Pin .
Check the waveform
of D913(+).
Check R943 and replace
ZD901
Replace D913
YES
YES
NO
NO
6
28
Page 25
- 2-18 -
Power Circuit
Check the Fuse
Check the DC output
of C901(+), C951(-)
Check the DC Output of
C903(+)
Check the output of
IC901, IC902
Check the DC 12V
Output of IC903
Check the 5V of CN513
pin 7 (CD FUNCTION)
END
Replace the Fuse
Check the AC Output of
CN901 pin1, 5
Check the AC Output of
CN701 PIN 1, 9, 10
Replace IC904
Replace the D901, D902,
D903, D904
Check the IC901, IC902
Check the “5V” of
IC501 pin5
Check the “Low” of Q904 “B”
Replace Q904
Replace the Transformer
Replace the Transformer
Check the 5V of IC301 or
check PN301/CN302 pin3
Check the “HIGH” of
IC501 pin 14
Check the “HIGH” of
Q905 “B”
Check the IC501
and Replace
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Page 26
- 2-19 -
Audio abnormal
Check the output of
IC601 Pin 24, 25
Refer to “IC601
Troubleshooting”
Refer to “Muting
Troubleshooting”
Check the 10V(Higher) and
power circuit
Check the input of
IC601 pin 28, 29, 30, 31, 34,
35, 36, 37
Check the Output of IC601
OK
YES
YES
YES
NO
NO
NO
Muting circuit (MUTE)
Dose “Low” appear at
Q602 “B”
Check the “HIGH of”
Q601, Q651 “B”
Refer to IC202 Troubleshooting
(ONLY Q201, Q251)
MUTE
Check the connector of
Q602 “B” & GND
YES
YES
NO
NO
Page 27
- 2-20 -
FUNCTION MODE Audio abnormal
TAPE
Check the signal input of IC601 pin 28, 37
Refer to IC202 Troubleshooting
AUX
Check the signal input of IC601, pin 29, 36
Check the signal input of JK102
Check the signal input of IC601 pin 31, 34
Check the signal of CN513 pin1, 3 or
Refer to CD Troubleshooting
Check the signal input of IC601 pin 30, 35
Refer to TUNERMODULE
CD
Tuner
Check the OW601
Refer to IC404 Troubleshooting
MIC
Page 28
- 2-21 -
Refer to IC301
Troubleshooting
IC301 Troubleshooting
IC501 Troubleshooting
Check the power supplying IC301 Pin 31, 32, 51, 88?
Refer to Power Circuit Troubleshooting
Check the P-SENS
Replace X301
Check the RESET circuit
Refer to Power Circuit Troubleshooting
Check the Data of IC301 Pin 13, 14
(CD ➞ TAPE FUNCTION)
Replace IC501
Check the pattern
of IC301 & IC501
Check the 5V of IC301 pin6
Check the oscillation of X301
Check the “Low” ➞ “High” of IC301
pin88 when power supplied
Replace IC301
Check the power supplied to IC501 pin 16
Check the CLK Data of IC501 pin 2, 3
Check the CONTROL function
END
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
Page 29
- 2-22 -
IC701 Troubleshooting
IC601 Troubleshooting
Check the power supplied to IC601 pin39
Refer to “Power Circuit Troubleshooting”
Check the IC301 pin 15, 16, 75, 76
Check the PATTERN of MICOM (82, 83) &
IC401 (21, 22)
Check the Pulse waveform of IC601
pin21, 22(VOL DIAL)
Check the Output of IC601 pin 24, 25
Check the waveform input of IC601 pin 8, 21
Check the waveform Output of
IC601 pin 12, 17
END
Check the signal input of pin14, 18
Refer to “Muting Troubleshooting”
Refer to “Power Circuit Troubleshooting”
Check the power(15V) of pin 2, 5
Check the power of pin 1, 5(+) pin 6, 17
Check the signal Output of pin 8, 9, 10, 11
END
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
Replace the IC601
Replace the “IC301
Troubleshooting”
Replace the IC601
Page 30
- 2-23 -
Play
Check the VCC supply to IC202 pin 18
Refer to Power Circuit Troubleshooting
Check the Deck Mechanism
Replace the Deck
Mechanism
Replace the IC202
Check the signal output of IC202 pin 5, 20
Check the Muting Circuit
YES
YES
YES
NO
NO
NO
YES
YES
NO
Dubbing(NORMAL or REC // HIGH)
Q252, 202 OFF // ON : R273, 223
LOW // HIGH
Q253, 203 ON // OFF Refer to IC203 Troubleshooting
Refer to REC Troubleshooting
Page 31
- 2-24 -
REC (Q252, Q202 ON / R273, R223 High)
Check signal supplied to IC202 pin 11, 14?
Check the output of IC202 Pin 9, 16
Check the IC201 pin 6 : 12V and pin 4 : High
Check the power or Refer to IC203
Troubleshooting
Check the power
supplying to C236(+)
Check the 0.6V of Q208
“B”
Check the “Low” of
Q208 “C”
Replace Q207
END
Check the Vcc power of IC202 Pin18
Check the oscillation of L203 pin 2, 3
Replace the DECK
Check the “Low” of Q253,
Q203 “B”
Replace Q253, Q203
Refer to IC203
Troubleshooting
Refer to Power Circuit
Troubleshooting
Refer to IC203
trouleshooting
Replace the Q208
Replace the L203
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
Page 32
- 2-25 -
• CD MAIN P.C. BOARD (COMPONENT SIDE)
Page 33
- 2-26 -
• CD MAIN P.C. BOARD (SOLDER SIDE)
Page 34
2-25 2-26
❏ BLOCK DIAGRAM
NOTE: Warning
Parts that are shaded are critical With respect
to risk of fire or electrical shock.
Page 35
❏ SCHEMATIC DIAGRAMS
• MAIN SCHEMATIC DIAGRAM
2-27 2-28
NOTE: Warning
Parts that are shaded are critical With respect
to risk of fire or electrical shock.
NOTE:
1. Shaded(■) parts are critical for safety.Replace only
with specified part number.
2. Voltages are DC-measured with a digital voltmefer
during Play mode.
Page 36
2-29 2-30
• FRONT SCHEMATIC DIAGRAM
Page 37
2-31 2-32
• TUNER/DECK SCHEMATIC DIAGRAM
Page 38
2-33 2-34
• CDP SCHEMATIC DIAGRAM
Page 39
2-35 2-36
❏ WIRING DIAGRAM
NOTE: Warning
Parts that are shaded are critical With respect
to risk of fire or electrical shock.
Page 40
2-37 2-38
❏ PRINTED CIRCUIT DIAGRAMS
• MAIN MIC P.C. BOARD (SOLDER SIDE)
Page 41
2-39 2-40
• MAIN MIC P.C. BOARD (COMPONENT SIDE)
Page 42
2-41 2-42
• FRONT P.C. BOARD(COMPONENT SIDE)
Page 43
2-43 2-44
• FRONT P.C. BOARD(SOLDER SIDE)
Page 44
2-45 2-46
• CD MAIN P.C. BOARD (COMPONENT SIDE) • CD MAIN P.C. BOARD (SOLDER SIDE)
Page 45
• POWER P.C. BOARD
NOTE: Warning
Parts that are shaded are critical With
respect to risk of fire or electrical shock.
2-47 2-48
Page 46
- 2-49 -
❏ INTERNAL BLOCK DIAGRAM OF ICs
■ BA5810FP (IC803)
Page 47
■ KIA 78R12 PI (IC903)
4 TERMINAL LOW DROP VOLTAGE REGULATOR
The KIA78RXX Series are Low Drop Voltage Regulator suitable for various electronic equipments. It
provides constant voltage power source with TO-220 4 termainal lead full molded PKG. The Regulator has
multi function such as over current protection, overheat protection and ON/OFF control.
- 2-50 -
Page 48
- 2-51 -
■ KIA7805AP/API (IC901)
THREE TERMINAL POSITIVE VOLTAGE REGULATORS 5V, 6V, 8V, 9V, 10V, 12, 15V, 18V, 24V.
EQUIVALENT CIRCUIT
Block Diagram
Page 49
- 2-52 -
■ KIA7805AP/API (IC901)
THREE TERMINAL POSITIVE VOLTAGE REGULATORS 5V, 6V, 8V, 9V, 10V, 12, 15V, 18V, 24V.
EQUIVALENT CIRCUIT
Block Diagram
Page 50
- 2-53 -
■ BA3126N (IC201)
2-channel head switch for radio cassette recorders
Page 51
- 2-54 -
Control circuit
12-bit shift register
Latch
Output buffer
(open drain)
1Vss
2DATA
3CLOCK
4Q0
5Q1
6 Q2
7Q3
8Q4
16 VDD
15 Q11
14 Q10
13 Q9
12 Q8
11 Q7
10 Q6
9 Q5
Pin No.
Pin name Function
BU2090/F/FS BU2092/F BU2092/FV
1 1 1 Vss GND
2 2 2 DATA Serial data input
3 3 3 CLOCK Data shift clock input
- 4 4 LCK Data latch clock input
4 5 5 Q0 parallel data output
5 6 6 Q1 parallel data output
6 7 7 Q2 parallel data output
7 8 8 Q3 parallel data output
8 9 9 Q4 parallel data output
9 10 10 Q5 parallel data output
10 11 11 Q6 parallel data output
- - 12 N.C. Not connected
- - 13 N.C. Not connected
11 12 14 Q7 parallel data output
12 13 15 Q8 parallel data output
13 14 16 Q9 parallel data output
14 15 17 Q10 parallel data output
15 16 18 Q11 parallel data output
- 17 19 OE Output Enable
16 18 20 V
DD Power supply
PIN DESCRIPTION
■ BU2090F (IC501)
12-bit, Serial IN, Parallel OUT driver
Block diagram
Page 52
- 2-55 -
■ KIA4558P/S (IC602)
BIPOLAR LINEAR INTEGRATED CIRCUIT
Page 53
- 2-56 -
■ KA3082 (IC804)
Bi-Directional DC Motor Driver
Description
The KA3082 is a monolithic integrated circuit designed for driving bi-directional DC motor with braking and
speed control.
Page 54
- 2-57 -
■ KIA7812API (IC902)
BIPOLAR LINEAR INTEGRATED CIRCUIT
FEATURES
• Suitable for C-MOS, TTL, the Other Digital IC’s Power Supply
• Internal Thermal Overload Protection.
• Internal Short Circuit Current Limiting
Page 55
- 2-58 -
❏ REPAIRS REGARDING CD MECHANISM
■
IMPROVED METHOD - WHEN THE TRAY GEARS WERE
DISTORTED
1. How to open the tray
Push two hooks (H) of the ➀ BASE MAIN, and open the ➁ TRAY LOADING
2. How to correct the distorted gears
(1) Turn ➂ GEAR MAIN until it clicks, if so that ➄ PICK-UP is downed completely
(2) The hold of ➅ GEAR FU DOWN array as the arrow of ➀ BASENAIN
(3) Push the ② TRAY LOADING
PIC K U P
GEAR MAIN
BASE MAIN
TRAY LOADING
GEAR CAM
H
GEAR PU DOWN
H
Page 56
3-1 3-2
❏ CABINET AND MAIN FRAME SECTION
354
351
271
272
273
274
251
252
A26
TUNER
301
305
354
454
303
306
302
A00
297
A43
296
298
295
294
293
292
291
277
260
250
286
262
261
279
263
264
287
284
285
276
A48
275
A41
A46
310
A47
NOTE) Refer to “SECTION 5 REPLACEMENT
PARTS LIST” in order to look for the
part number of each part.
SECTION 3. EXPLODED VIEWS
Page 57
3-3 3-4
401
003
502
501
502
501
402
009
401
401
011
013
409
032R
038
026
028
027
040
029
022
015
A01
019
037R
018
017
016
006
007
402
008
020
505
021
023
504
025
035
039
001
009
046
031
028
002R
036
• TAPE DECK MECHANISM DOUBLE AUTO REVERSE DECK (RIGHT)
LOCA.NO PART NO. SPECIFICATION
A00 6720AG0003C CWM42RR48 TOKYO PIGEON L-DOUBLE
A01 6768R-UP03D 50-093-4895 PIGEON PWB UNIT CW
001 6768R-BP03D 02-083-4254 PIGEON BELT/FELT C
002L 6768R-BP03F 02-083-4232 PIGEON BELT/FELT C
002R 6768R-BP03E 02-083-4256 PIGEON BELT/FELT C
003 6768R-PP03A 33-160-4309 PIGEON PRESS CASSE
006 6768R-QP03C 50-093-4880 PIGEON MOTOR(ASSY)
007 6768R-GP03B 50-222-4578 PIGEON GEAR IDLER
008 6768R-SP01F 01-082-4598 PIGEON SPRING CWL4
009 6768R-MP01C 50-219-4014 PIGEON MOLD CWL44
011 6768R-SP01A 01-081-4601 PIGEON SPRING CWL4
013 6768R-SP03A 01-082-4686 PIGEON SPRING CRM4
015 6768R-AP01A 50-268-3016 PIGEON ARM CWL44
016 6768R-GP01H 50-093-4503 PIGEON GEAR CRL442
017 6768R-AP01C 50-239-4072 PIGEON ARM CWL44
018 6768R-GP01J 50-222-4428 PIGEON GEAR CRL442
019 6768R-SP01P 01-081-4678 PIGEON SPRING CRL4
020 6768R-BP01C 02-083-4188 PIGEON BELT/FELT C
021 6768R-LP01C 50-223-4429 PIGEON PULLEY/FLYW
022 6768R-VP03A 50-093-4748 PIGEON SOLENOID AS
023 6768R-GP03A 50-093-4810 PIGEON GEAR ASSY C
025 6768R-JP03B 50-093-31009 PIGEON PULLEY/FLY
026 6768R-SP01D 01-080-4609 PIGEON SPRING CWL4
027 6768R-DP01A 50-259-3342 PIGEON LEVER CWL44
028 6768R-RP01A 22-027-41054 PIGEON ROLLER CWL
029 6768R-MP01A 50-219-4033 PIGEON MOLD CWL44
031 6768R-SP04A 01-082-4731 PIGEON SPRING
032R 6768R-EP04A 50-093-41007 PIGEON HEAD ASSY
032L 6768R-EP04B 50-093-41130 PIGEON HEAD ASSY
035 6768R-PP04A 50-119-4915 PIGEON PRESS
036 6768R-SP04B 01-081-4730 PIGEON SPRING
037R 6768R-JP03A 50-093-4674 PIGEON PULLEY/FLYW
037L 6768R-JP03C 50-093-4726 PIGEON PULLEY/FLYW
038 6768R-MP01D 50-219-4034 PIGEON MOLD CWL44
039 6768R-MP02A 50-219-3900 PIGEON MOLD
040 6768R-SP01M 01-080-4607 PIGEON SPRING CWL4
401 6768R-CP01B GSE20A2005 PIGEON SCREW CWL44
402 6768R-CP01A GSE10A2003 PIGEON SCREW CWL44
403 6768R-CP01D GSL10A1704 PIGEON SCREW CWL44
406 6768R-CP01G GSE20A2004 PIGEON SCREW CWL44
409 6768R-CP02A GSD10A2016 PIGEON SCREW
501 6768R-WP03A GWN19S035040 PIGEON WASHER CRM
502 6768R-WP03B 03-000-4532 PIGEON WASHER CRM4
504 6768R-WP01D GWP21X045020 PIGEON WASHER CWL
505 6768R-WP01E GWP12X030040S PIGEON WASHER CW
506 6768R-WP01H GWP23X040020 PIGEON WASHER CWL
507 6768R-WP01F GWN21X040040 PIGEON WASHER CWL
508 6768R-WP03C GWP16X030020 PIGEON WASHER CWM
Page 58
3-5 3-6
037L
505
508
506
002L
007
402
008
016
017
018
019
021
020
505
015
023
025
504
403
022
027
028
009
031
039
035
409
406
032L
026
028
038
013
401
009
011
401
009
402
003
507
502
501
502
040
036
• TAPE DECK MECHANISM: DOUBLE AUTO REVERSE DECK (LEFT)
LOCA.NO PART NO. SPECIFICATION
A00 6720AG0003C CWM42RR48 TOKYO PIGEON L-DOUBLE
A01 6768R-UP03D 50-093-4895 PIGEON PWB UNIT CW
001 6768R-BP03D 02-083-4254 PIGEON BELT/FELT C
002L 6768R-BP03F 02-083-4232 PIGEON BELT/FELT C
002R 6768R-BP03E 02-083-4256 PIGEON BELT/FELT C
003 6768R-PP03A 33-160-4309 PIGEON PRESS CASSE
006 6768R-QP03C 50-093-4880 PIGEON MOTOR(ASSY)
007 6768R-GP03B 50-222-4578 PIGEON GEAR IDLER
008 6768R-SP01F 01-082-4598 PIGEON SPRING CWL4
009 6768R-MP01C 50-219-4014 PIGEON MOLD CWL44
011 6768R-SP01A 01-081-4601 PIGEON SPRING CWL4
013 6768R-SP03A 01-082-4686 PIGEON SPRING CRM4
015 6768R-AP01A 50-268-3016 PIGEON ARM CWL44
016 6768R-GP01H 50-093-4503 PIGEON GEAR CRL442
017 6768R-AP01C 50-239-4072 PIGEON ARM CWL44
018 6768R-GP01J 50-222-4428 PIGEON GEAR CRL442
019 6768R-SP01P 01-081-4678 PIGEON SPRING CRL4
020 6768R-BP01C 02-083-4188 PIGEON BELT/FELT C
021 6768R-LP01C 50-223-4429 PIGEON PULLEY/FLYW
022 6768R-VP03A 50-093-4748 PIGEON SOLENOID AS
023 6768R-GP03A 50-093-4810 PIGEON GEAR ASSY C
025 6768R-JP03B 50-093-31009 PIGEON PULLEY/FLY
026 6768R-SP01D 01-080-4609 PIGEON SPRING CWL4
027 6768R-DP01A 50-259-3342 PIGEON LEVER CWL44
028 6768R-RP01A 22-027-41054 PIGEON ROLLER CWL
029 6768R-MP01A 50-219-4033 PIGEON MOLD CWL44
031 6768R-SP04A 01-082-4731 PIGEON SPRING
032R 6768R-EP04A 50-093-41007 PIGEON HEAD ASSY
032L 6768R-EP04B 50-093-41130 PIGEON HEAD ASSY
035 6768R-PP04A 50-119-4915 PIGEON PRESS
036 6768R-SP04B 01-081-4730 PIGEON SPRING
037R 6768R-JP03A 50-093-4674 PIGEON PULLEY/FLYW
037L 6768R-JP03C 50-093-4726 PIGEON PULLEY/FLYW
038 6768R-MP01D 50-219-4034 PIGEON MOLD CWL44
039 6768R-MP02A 50-219-3900 PIGEON MOLD
040 6768R-SP01M 01-080-4607 PIGEON SPRING CWL4
401 6768R-CP01B GSE20A2005 PIGEON SCREW CWL44
402 6768R-CP01A GSE10A2003 PIGEON SCREW CWL44
403 6768R-CP01D GSL10A1704 PIGEON SCREW CWL44
406 6768R-CP01G GSE20A2004 PIGEON SCREW CWL44
409 6768R-CP02A GSD10A2016 PIGEON SCREW
501 6768R-WP03A GWN19S035040 PIGEON WASHER CRM
502 6768R-WP03B 03-000-4532 PIGEON WASHER CRM4
504 6768R-WP01D GWP21X045020 PIGEON WASHER CWL
505 6768R-WP01E GWP12X030040S PIGEON WASHER CW
506 6768R-WP01H GWP23X040020 PIGEON WASHER CWL
507 6768R-WP01F GWN21X040040 PIGEON WASHER CWL
508 6768R-WP03C GWP16X030020 PIGEON WASHER CWM
Page 59
3-7 3-8
❏ CD MECHANISM
416
151
156
418
169
173
171
170
419
163
422
165
159
164
417
417
416
166
167
177
175
172
162
153
168
155
LOCA.NO. PART NO DESCRIPTION SPECIFICATION
A26 4405RCE008C MECHANISM ASSEMBLY CDM-H1503 3 CD CHANGER
A30 3041RB0002C BASE ASSEMBLY PU(SPRING DAMPER)
A35 6717RCA001A PICK UP ASSY KSM-213VSCM SONY FRONT LOADING
151 3390RB0002A TRAY DISC(CDM-H1503)
153 4470RB0005A GEAR TRAY (CDM-H1503)
155 4681RBA001A MOTOR ASSEMBLY TRAY (CDM-H1503)
156 6871RF9211A PWB(PCB) ASSEMBLY,FRONT 1503 T/D SENSOR
159 3390RB0001A TRAY LOADING(CDM-H1503)
162 4400SB0001A BELT MAIN(CDM-H1303)
163 4470SB0003A GEAR PULLEY (CDM-H1303)
164 4470RB0003A GEAR LOADING (CDM-H1503)
165 6871RZ7036A PWB(PCB) ASSEMBLY,OTHERS CDM-H1503 UP/DW/OP/CL
166 4470RB0006A GEAR PU UP (CDM-H1503)
167 4470RB0007A GEAR PU DOWN (CDM-H1503)
168 4470RB0002A GEAR CAM (CDM-H1503)
169 4860SB0001A CLAMP DISC(CDM-H1303)
170 3550SB0001A COVER MAGNET(CDM-H1303)
171 524-012AAAA COVER CLAMP MAGNET (030X018X5T)
172 3040RB0005A BASE MAIN (CDM-H1503)
173 4510RB0001A LEVER S/W CLOSE
175 4680SBP001A MOTOR(MECH) OTHER . . .
177 4470RB0001A GEAR MAIN (CDM-H1503)
184 4900RB0001A DAMPER RUBBER 3CD CHANGER
185 3040SB0003A BASE PU(CDM-H1303)
186 4970RB0001A SPRING COIL 3 CD CHANGER
187 4970RB0001B SPRING COIL 50 3CD CHANGER
416 88H-0004 CD MECHA PARTS 3X12X12FNM
417 88H-0002 CD MECHA PARTS 3X9X12FZMY
418 353-025BAAA SCREW #NAME?
419 88H-0003 CD MECHA PARTS 3X12X10FZMY
420 353S353F SCREW #NAME?
421 6756SBX001A CD MECHANISM PARTS SCREW 2.6X10X10XFZMY CDM-H813
422 353-028H SCREW #NAME?
Page 60
- 4-1 -
❏ MODEL: LMS-M1030
855
854
856
853
851
857
850
852
864
262
SECTION 4. SPEAKER SECTION
Page 61
- 4-2 -
MEMO
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