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SERVICE MANUAL MODEL: LM-U1350A, LM-U1350D, LM-U1350X, LMS-U1350
3CD CHANGER DVD KARAOKE SYSTEM
SERVICE MANUAL
MODEL: LM-U1350A, LM-U1350D, LM-U1350X, LMS-U1350
[CONTENTS]
SECTION 1. GENERAL
· SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 · ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 · SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
SECTION 2. ELECTRICAL SECTION
· TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 · AUDIO PART TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 · BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27 · SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28 · WIREING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43 · PRINTED CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
SECTION 3. EXPLODED VIEWS
· CABINET AND MAIN FRAME SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 · TAPE DECK MECHANISM (A/R & A/S : RIGHT A/R DECK) . . . . . . . . . . . . . . . . . . . . . . . . .3-3 · TAPE DECK MECHANISM (A/R & A/S : LEFT A/S DECK) . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5 · CD MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
SECTION 4. SPEAKER PART
· SPEAKER PART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
SECTION 5. REPLACEMENT PARTS LIST
· REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
- 1-1 -
SECTION 1. GENERAL
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.
Storage in conductive bag
Drop 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.
NEVER look directly at the laser beam, and don't let contact fingers or other exposed skin.
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.
Pressure Magnet
Pressure
How to hold the pick-up
Cotton swab Conductive Sheet
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 -
· 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 (1M ) 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. Armband
Resistor (1 Mohm) Resistor (1 Mohm) Conductive Sheet
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.
VOLUME UP RESET jump wire
VOLUME KNOB
DOWN
- 1-3 -
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 -
SPECIFICATIONS
NOTE : Specification are subject to change without notice in the course of product improvement.
- 1-5 -
- 1-6 -
SECTION 2. ELECTRICAL
TROUBLESHOOTING GUIDE
P-SENS PART CHECK
SMPS Assy CN904 5PIN 5V operation check YES NO Refer to SMPS Troubleshooting
MAIN PCB CN701 5PIN 5V YES NO CN701 contact condition check YES MAIN PCB CN301 4PN 5V check YES FRONT PN301 4PIN 5V check YES FRONT IC304 operation status checck YES u-COM 26PIN 5V check NO Input voltage 4V or higer, output voltage 2.1V or higer operation check YES IC304 KIA7042 replacement MAIN PCB PATTERN disconnection check
VKK CHECK
CN701 3PIN DC -33V check YES NO Refer to SMPS Troubleshooting
IC301 51PIN voltage check
- 2-1 -
Muting circuit Troublrshooting (MUTE condition)
Q752(A102) Base "HIGH" NO YES c-COM operation status check YES NO c-COM 2PIN(A-MUTE) LINE check
Q603(A102) operation status check YES Replace when Q603(A102) is defective
Q604, Q605(D1302) BASE "HIGH" check YES NO Replace each related TR
MUTE
Unfelt voice
Input check (AUX 9.36 TUNER 6/39 TAPE 7/38CD 8/37PIN) NO Check input and operation status for each function
YES
IC601 20/25PIN output check NO Refer to IC401(NJW1190) IC specification
YES
IC601 input check (22/23PIN) NO c-COM check and (CLK/DATA check)
YES
IC601 output check (24PIN) NO Check IC401 24PIN cover 8V and power circuit YES NORMAL Power operation staus check YES NO CN942/CN701 connection status check
YES
R634 180(9.1)V check
- 2-2 -
Specific FUNCTION MODE unfelt voice
TAPE Refer to IC201 Troubleshooting
IC201 input check (HAED input) "A" DECK 32,39 "B" DECK 34,37 NO YES DECK HEAD WIRE connection status check NO
A
IC201 output check (5, 26PIN) NO YES IC202 9PIN (PB MUTE) operation check YES c-COM 301 3.4PIN CLK/DATA operation check
IC401 7, 38 signal input check
A
IC202 14PIN HIGH operation check
NO
YES Q213(C103 COLLECTOP LOW) operation check
NO
Replace IC202
YES Q212(A102) BASE LOW check
NO
Replace Q213(C103)
YES Q201.202(GATE) HIGH operation check
Q212(A101) EMITTER 5V check
YES Q212(A102) COLLECTOR 5V operation check
YES Q201,202 (DRAIN) GND check
YES Replace defective parts
YES Replace defective parts
- 2-3 -
AUX YES JK601 signal input check YES IC401 9,36PIN signal input check
CD YES Check Cn601 1,3PIN signal anad Refer to CD Troubleshooting YES
NO
MAIN PCB PATTERN check
IC601 8,3PIN signal input check
TUNER YES Refer to TUNERMODULE YES IC401 6,39PIN signal input check
MIC YES IC401 1PIN input check YES Refer to IC404 Toubleshooting
B
- 2-4 -
B
MIC PCB JK401 input check YES
NO
MIC input pattern disconnection check and after MIC insertion
NO
Check PN401 connection status and IC301 20PIN status check
IC406 6PIN power check and 2PIN input check YES
NO
MIC MUTE operation status check
IC406 7PIN output check YES
NO
IC406 7PIN output check
NO
Replace IC406
PN401 3PIN output check YES NORMAL
IC301 Troubleshooting
IC301 17,46,72,90 power impression check NO SMPS power 5V check
YES
PN301 20PIN 5V impression chck NO PN301 4PIN 5V P-SENS terminal check
YES
X301 ossillates or not? NO Replace X301
YES
When IC301 11PIN power insert High LOW High NO Reset circuit check YES Replace IC301 Q302(C102M) operation staus check YES NO Q302 collector HIGH operation check
YES
NORMAL
Q302 (Replace C102)
- 2-5 -
IC302, 202 (BU2090) Troubleshooting
IC301, 201 16PIN power impression check NO SMPS power check
YES
IC302,202 95,2,3PIN CLK data check NO IC301 95,34,4PIN data check(When switching CD, TAPE FUNCTION) YES CONTROL function check Pattern check between IC301 and IC501 YES NO Replace IC302, 202 NORMAL NO Refer to IC301 Troubleshooting
YES
IC401 (NJW1190) Troubleshooting
IC401 24PIN power impression check NO Refer to SMPS power check
YES
IC401 22,23 Pulse waveform check (VOL UP,DOWN check while rotating VOL UP, DOWN NO IC301 10,8PIN check YES IC401 20,25 PIN waveform output check MICOM(10,8) - IC601(21,22) PATTERN check YES NO Replace IC601 IC401 7,37PIN(TAPE) input waveform check YES NO TAPE Troubleshooting NO IC301 Troubleshooting
YES
IC401 6,39(TUNER) PIN input waveform check YES NO TUNER module replacement
IC401 8,37(CD) PIN input waveform check YES NO CD Troubleshooting
IC401 9, 36(AUXO input waveform check NO Replace IC401 Nomal
- 2-6 -
AMP MODULE Troubleshooting
PN301, PN702 assembly status check NO 1. PN301(7,8), PN702(13,14) PWM DATA.CLK operation status check, PN301 PWm/CS534012PIN 5152.514214 RESET 14 check 2. PN702:13PWM_SDA, 14PWM_SCL 1.5152.5142/RESET check Replace when 12.288 is defective NO
YES
12.288MHz oscillation check
YES
CS5340 2PIN MCLK/PS9813 48CLK_IN
PN 7PIN 3.3V check power check NO SMPS power check
YES
11, 27, 46PIN 3.3V check YES NO SMPS power check
IC702 41, 42, 43, 44 operation status check YES
IC703 power cehck YES IC703 5,15PIN RESET check YES NO IC301 79,81 PN301 12,14PIn check NORMAL NO SMPS 36V power check
Play check
IC201 16PIN VCC power impression NO YES Refer to SMPS power cehck
IC201 5, 26PIN Signal Output check YES NO Deck Mecha operation performance check YES Replace IC201 NO Replace Deck Mecha
IC201 14PIN Muting circuit check
- 2-7 -
Rec check (Q252, Q202 ON :R273, R223 High)
IC401 11,34 OUT check YES IC401 each input 6, 39. TAPE. 7, 38. CD 8,38 AUX 9.36PIN signal input check YES NO REC input check
IC201 7,24PIN input check NO YES IC201 10,21PIN output check NO YES L203 2,3PIN oscillation check NO YES IC202 14PIN operation status check IC202 4PIN operation check NO YES Q205 Base 0.6V impression check YES YES Q213, 212 operation status check Q204 Collector Low YES DECK replacement NO YES Q203 replacement NO YES NORMAL L203 replacement Q204 replacement NO IC202 Troubleshooting check Refer to power check After REC output check, Replace defective IC Input LINE check
- 2-8 -
Dubbing check ("NORMAL or REC"//"HIGH")
IC401 11,34 OUT check YES
IC401 each input TUNER 6, 39 TAPE 7, 38 CD 8, 38 AUX 9, 36 PIN signal input check YES IC201 7, 24PIN input check YES Input LINE check REC input check
IC201 10,21PIN output check
- 2-9 -
INTERNAL BLOCK DIAGRAM of ICs
· TAS5142
BLOCK DIAGRAM
/OTW (Over Temperature Warning) System Mircrocontroller /SD (H-Bridge is in shutdown) /OTW /SD
BST_A VALID_AB
/RESET_AB
BST_B
Bootstrap
Right Channel Output
PWM_A Output H-Bridge1
OUT_A OUT_B
TAS50XX
PWM_B VALID_CD H-Bridge2 PWM_C PWM_D 2-Channel H-BRIDGE BTL Model
L-C Output Filter for each 1/2 Bridge
4 ohm
OUT_C OUT_D
GVDD_A, B, C, D
2nd Order L-C output Filter for each 1/2 Bridge
Left Channel Output
4 ohm
PVDD_A, B, C, D
M1 Hardwire Mode M2
GND_A, B, C, D
BST_C
VREG AGND OC_ADJ
BST_D
Bootstrap Caps
4
4
4
31V
PVDD(0-31V)
SYTEM POWER GND
PVDD Power supply Decoupling
GVDD, VDD, & VREG power supply Decoupling
Hardwire overcurentlimit
12V
GV DD(12V) & VDD(12V)
- 2-10 -
· HA12237F
BLOCK DIAGRAM
- 2-11 -
· CS5340
BLOCK DIAGRAM
· NJW1190
BLOCK DIAGRAM
- 2-12 -
PIN FUNCTION (QFP48-P1)
- 2-13 -
· TAS5152
SYSTEM BLOCK DIAGRAM
- 2-14 -
FUNCTIONAL BLOCK DIAGRAM
- 2-15 -
· PS9813
BLOCK DIAGRAM
· Pin Assignment
PLL_DVDD PLL_AVDD PLL_EXT_LPF PLL_AGS PLL_AVSS PLL_DVSS SA SCL SDA NRESET CVDD1 VSS DVDD1 MLRCK MBCK MSDIN SLRCK SBCK SSDIN DVSS1 MCLK MIC_LRCK MIC_BCK MIC_SDIN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38
CLK_IN N.C. DVDD3 DVSS3 PWM_CH1_P PWM_CH1_M PWM_CH2_P PWM_CH2_M PWM_CH3_P PWM_CH3_M CVDD2 VSS EPD_ENA OVERLOAD PWM_LOL_P PWM_LOL_M PWM_LOR_P PWM_LOR_M DVSS2 PWM_HP_L PWM_HP_R DVDD2 TEST_MODE2 TEST_MODE1
PS9813
37 36 35 34 33 32 31 30 29 28 27 26 25
- 2-16 -
Pin Descriptions
- 2-17 -
- 2-18 -
· OTi-6888 (IC805)
BLOCK DIAGRAM
- 2-19 -
· AM5810 (IC802)
BLOCK DIAGRAM
Pin configuration
- 2-20 -
Pin Description
- 2-21 -
Application
- 2-22 -
· OTi-6888
PIN CONFIGUARTION
DMNS_IO GPIOB[3] 48 GPIOB[1] 46
DPLS_IO
ext_int5 47
REQ
gnd 45
SID
SIC
vdd
NC
NC
44
43
42
41
40
39
38
37
GPIOA[7] GPIOA[6] NC NC NC NC gnd vdd LED1_out NC GPIOA[5] GPIOA[4]
1 2 3 4 5 6 7 8 9 10 11 12 13 GPIOA[3] 14 GPIOA[2] 15 NC 16 NC 17 NC 18 gnd 19 vdd 20 NC 21 NC 22 23 24
36 35 34 33 32
GPIOB[2] NC GPIOB[0] sda scl NC vdd xtal2 xtal1 gnd reset_b NC
LQFP-48
31 30 29 28 27 26 25
NC
GPIOA[1]
GPIOA[0]
- 2-23 -
- 2-24 -
PIN DESCRIPTION OTi-6888 has two different kinds of package, 48-pin and 64-pin. OTi-6888 with 48-pin package provides fundamental USB host function, however, it can provide external ROM functions if you choose 64-pin package. Note: OTi-6888 with 48-pin package does not external ROM function.
Pin No. 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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Pin Name GPIOA[7] GPIOA[6] NC NC NC NC gnd vdd LED1_out NC GPIOA[5] GPIOA[4] GPIOA[3] GPIOA[2] NC NC NC gnd vdd NC NC NC GPIOA[1] GPIOA[0] NC reset_b gnd xtal1 xtal2 vdd NC scl sda GPIOB[0] NC GPIOB[2] NC SIC REQ SID NC vdd DPLS_IO DMNS_IO gnd GPIOB[1] ext_int5 GPIOB[3] Attribute I/O I/O Description GPIO GPIO NC NC NC NC gnd vdd NC GPIO GPIO GPIO GPIO NC NC NC gnd vdd NC NC NC GPIO GPIO NC Power on reset input , low active gnd Crystal input Crystal output vdd NC The clock pin for I2C The data pin for I2C GPIO NC GPIO NC The clock pin for bit stream The request pin for bit stream The data pin for bit stream NC vdd USB D+ USB Dgnd GPIO External interrupt input GPIO
I I O Status indication I/O I/O I/O I/O
I I
I/O I/O O I I I O I O I/O I/O I/O O I O O I I/O I/O I I/O I I/O
- 2-25 -
Note : OTi-6888 with 64-pin package with External ROM functions.
Pin No. 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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Pin Name ex_romdata [5 ] ex_romdata [4 ] GPIOA [7 ] GPIOA [6 ] gnd vdd LED1_out GPIOA [5 ] GPIOA [4 ] ex_romaddr [12 ] ex_romaddr [11 ] ex_romaddr [10 ] ex_romaddr [9 ] gnd vdd ex_romaddr [8 ] ex_romdata [3 ] ex_romdata [2 ] GPIOB [6 ] GPIOB [4 ] GPIOA [3 ] GPIOA [2 ] gnd vdd GPIOA [1 ] GPIOA [0 ] ex_romaddr [7 ] gnd vdd ex_romaddr [6 ] ex_romaddr [5 ] ex_romaddr [4 ] rxdi1 ex_romaddr [3 ] ex_romaddr [2 ] ex_romdata [1 ] ex_romdata [0 ] mode0 reset_b gnd xtal1 xtal2 vdd scl sda gnd ex_romaddr [1 ] ex_romaddr [0 ] txd1 ex_romdata [7 ] ex_romdata [6 ] SIC REQ SID vdd DPLS_IO DMNS_IO gnd GPIOB [1 ] host_dev_sel gnd ex_romaddr [15 ] ex_romaddr [14 ] ex_romaddr [13 ] Attribute I I I/O I/O I I O I/O I/O O O O O I I I I I I/O I/O I/O I/O I I I/O I/O O I I O O O I O O O O I I I I O I O I/O I O O O I I O I O I I/O I/O I I/O I I O O O Description ex_romdata_pad [5 ] ex_romdata_pad [4 ] GPIOA_pad [7 ] GPIOA_pad [6 ] gnd vdd LED1_out_pad GPIOA_pad [5 ] GPIOA_pad [4 ] ex_romaddr_pad [12 ] ex_romaddr_pad [11 ] ex_romaddr_pad [10 ] ex_romaddr_pad [9 ] gnd vdd ex_romaddr_pad [8 ] ex_romdata_pad [3 ] ex_romdata_pad [2 ] GPIOB_pad [6 ] GPIOB_pad [4 ] GPIOA_pad [3 ] GPIOA_pad [2 ] gnd vdd GPIOA_pad [1 ] GPIOA_pad [0 ] ex_romaddr_pad [7 ] gnd vdd ex_romaddr_pad [6 ] ex_romaddr_pad [5 ] ex_romaddr_pad [4 ] rxd1i_pad ex_romaddr_pad [3 ] ex_romaddr_pad [2 ] ex_romdata_pad [1 ] ex_romdata_pad [0 ] mode0_pad reset_b_pad gnd xtal1_pad xtal2_pad vdd scl_pad sda_pad gnd ex_romaddr_pad [1 ] ex_romaddr_pad [0 ] txd1_pad ex_romdata_pad [7 ] ex_romdata_pad [6 ] SIC_pad REQ_pad SID_pad vdd DPLS_IO_pad DMNS_IO_pad gnd GPIOB_pad [1 ] host_dev_sel_pad gnd ex_romaddr_pad [15 ] ex_romaddr_pad [14 ] ex_romaddr_pad [13 ]
- 2-26 -
BLOCK DIAGRAM
2-27
2-28
SCHEMATIC DIAGRAMS
· MAIN SCHEMATIC DIAGRAM
2-29
2-30
· FRONT SCHEMATIC DIAGRAM
2-31
2-32
· AMP SCHEMATIC DIAGRAM
2-33
2-34
· POWER SCHEMATIC DIAGRAM
2-35
2-36
· CDP SCHEMATIC DIAGRAM
2-37
2-38
· USB SCHEMATIC DIAGRAM
2-39
2-40
· DECK SCHEMATIC DIAGRAM
2-41
2-42
· MIC SCHEMATIC DIAGRAM
2-43
2-44
WIRING DIAGRAM
2-45
2-46
PRINTED CIRCUIT DIAGRAMS
· MAIN P.C. BOARD
2-47
2-48
· FRONT P.C. BOARD
2-49
2-50
· CDP P.C. BOARD (COMPONENT SIDE)
2-51
2-52
· CDP P.C. BOARD (SOLDER SIDE)
2-53
2-54
· AMP P.C. BOARD (SOLDER SIDE)
2-55
2-56
· AMP P.C. BOARD (COMPONENT SIDE)
2-57
2-58
· SMPS P.C. BOARD
2-59
2-60
SECTION 3. EXPLODED VIEWS
CABINET AND MAIN FRAME SECTION
MD ASSY
A26
Caution point A43: Front + MIC + USB + Headphone array assembly pcb
266 265 250 A51 264 269 281 267
279
355
301
263 270 262 260 261 271
A50 A49
268
A41
450
251
*OPTION
A46 A43
259 258 257 272
A48
303 252
454
A47
256 253
A00
305
302
3-1
3-2
· TAPE DECK MECHANISM (A/R & A/S : RIGHT A/R DECK)
006 001 007 016 008 002 401 402 017 506 037 019 018
021 505 020
LOCA. NO. A00 A01 A02
LG PART NO. 6720AG0008A 6768R-UP04A 6768R-EP05A 6768R-BP03D 6768R-BP03E 6768R-PP03A 6768R-QP04A 6768R-GP03B 6768R-SP01F 6768R-MP01C 6768R-SP01A 6768R-SP03A 6768R-AP01A 6768R-GP01H 6768R-AP01C 6768R-GP01J 6768R-SP01P 6768R-BP01C 6768R-LP01C 6768R-VP03A 6768R-GP03A 6768R-JP03B 6768R-JP03A 6768R-CP01B 6768R-CP01A 6768R-CP01D 6768R-CP01H 6768R-CP01J 6768R-WP03A 6768R-WP03B 6768R-WP01D 6768R-WP01E 6768R-WP01H 6768R-WP01F
DESCRIPTION DECK,AUDIO DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS
SPECIFICATION CWN42FR04 TOKYO PIGEON L-DOUBL 50-093-41285 PIGEON UNIT 50-093-41234 PIGEON HEAD ASSY 02-083-4254 PIGEON BELT/FELT C 02-083-4256 PIGEON BELT/FELT C 33-160-4309 PIGEON PRESS CASSE 50-093-41299 PIGEON MOTOR(ASSY 50-222-4578 PIGEON GEAR IDLER 01-082-4598 PIGEON SPRING CWL4 50-219-4014 PIGEON MOLD CWL44 01-081-4601 PIGEON SPRING CWL4 01-082-4686 PIGEON SPRING CRM4 50-268-3016 PIGEON ARM CWL44 50-093-4503 PIGEON GEAR CRL442 50-239-4072 PIGEON ARM CWL44 50-222-4428 PIGEON GEAR CRL442 01-081-4678 PIGEON SPRING CRL4 02-083-4188 PIGEON BELT/FELT C 50-223-4429 PIGEON PULLEY/FLYW 50-093-4748 PIGEON SOLENOID AS 50-093-4810 PIGEON GEAR ASSY C 50-093-31009 PIGEON PULLEY/FLY 50-093-4674 PIGEON PULLEY/FLYW GSE20A2005 PIGEON SCREW CWL44 GSE10A2003 PIGEON SCREW CWL44 GSL10A1704 PIGEON SCREW CWL44 GSL20A2005 PIGEON SCREW CWL44 03-300-4127 PIGEON SCREW CWL44 GWN19S035040 PIGEON WASHER CRM 03-000-4532 PIGEON WASHER CRM4 GWP21X045020 PIGEON WASHER CWL GWP12X030040S PIGEON WASHER CW GWP23X040020 PIGEON WASHER CWL GWN21X040040 PIGEON WASHER CWL
003 402
A01
001 002 003 006 007
015 502 507 009 401 501 403 504 026 009 401 025 502 022 023
008 009 011 013 015 016 017 018 019 020 021 022 023
A02
025 037 401
011
402 403 407
406 013
408 501 502 504 505 506 507
3-3
3-4
· TAPE DECK MECHANISM (A/R & A/S : LEFT A/S DECK)
021 019 018 007 008 016 017 020 505
003 401
022 023
015
LOCA. NO. A00 003 007 008 009 011 013 015 016
LG PART NO. 6720AG0008A 6768R-PP03A 6768R-GP03B 6768R-SP01F 6768R-MP01C 6768R-SP01A 6768R-SP03A 6768R-AP01A 6768R-GP01H 6768R-AP01C 6768R-GP01J 6768R-SP01P 6768R-BP01C 6768R-LP01C 6768R-VP03A 6768R-GP03A 6768R-JP03B 6768R-SP01D 6768R-DP01A 6768R-RP01A 6768R-MP01A 6768R-EP03C 6768R-CP01B 6768R-CP01D 6768R-WP03A 6768R-WP03B 6768R-WP01D 6768R-WP01E
DESCRIPTION DECK,AUDIO DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS DECK MECHANISM PARTS
SPECIFICATION CWM42FR47 TOKYO PIGEON L-DOUBL 33-160-4309 PIGEON PRESS CASSE 50-222-4578 PIGEON GEAR IDLER 01-082-4598 PIGEON SPRING CWL4 50-219-4014 PIGEON MOLD CWL44 01-081-4601 PIGEON SPRING CWL4 01-082-4686 PIGEON SPRING CRM4 50-268-3016 PIGEON ARM CWL44 50-093-4503 PIGEON GEAR CRL442 50-239-4072 PIGEON ARM CWL44 50-222-4428 PIGEON GEAR CRL442 01-081-4678 PIGEON SPRING CRL4 02-083-4188 PIGEON BELT/FELT C 50-223-4429 PIGEON PULLEY/FLYW 50-093-4748 PIGEON SOLENOID AS 50-093-4810 PIGEON GEAR ASSY C 50-093-31009 PIGEON PULLEY/FLY 01-080-4609 PIGEON SPRING CWL4 50-259-3342 PIGEON LEVER CWL44 22-027-41054 PIGEON ROLLER CWL 50-219-4033 PIGEON MOLD CWL44 T21V0P PIGEON HEAD CWM42FF30 GSE20A2005 PIGEON SCREW CWL44 GSL10A1704 PIGEON SCREW CWL44 GWN19S035040 PIGEON WASHER CRM 03-000-4532 PIGEON WASHER CRM4 GWP21X045020 PIGEON WASHER CWL GWP12X030040S PIGEON WASHER CW
009 401 502 501 026 403 504 025
017 018 019 020 021 022
009 401 030 011 027 013 029 401 028
023 025 026 027 028 029 030 401 403 501 502 504 505
3-5
3-6
· CD MECHANISM
416
151
159
156 422 165 418 419 153 163 162 417 169 166 417 167 168 155 173
LOCA. NO. A26
LG PART NO. 4405R-E008B 3041RB0002C 6717RCA001B 3390RB0002A 4470RB0005A 4681RBA001B 6871RF9211A 3390RB0001A 4400R-0012A 4470R-0190A 4470RB0003A 4470RB0006A 4470RB0007A 4470RB0002A 4860RB0002B 3040RB0005A 4510RB0001A 4681RBA002A 4470RB0001A 4900RB0002A 3040SB0003A 4970RB0001A 4970RB0001B 88H-0004 88H-0002 353-025BAAA 88H-0003 353S353F 6756SBX001A 353-028H
DESCRIPTION MECHANISM ASSEMBLY BASE ASSEMBLY PICK UP ASSEMBLY TRAY GEAR MOTOR ASSEMBLY PWB(PCB) ASSEMBLY,FRONT TRAY BELT GEAR GEAR GEAR GEAR GEAR CLAMP BASE LEVER MOTOR ASSEMBLY GEAR DAMPER BASE SPRING SPRING CD MECHA PARTS CD MECHA PARTS SCREW,DRAWING CD MECHA PARTS SCREW,DRAWING CD MECHANISM PARTS SCREW
SPECIFICATION LM-U1050/U1350 MP3 CD PWB + H1 PU(SPRING DAMPER) KSM-213VLCM SONY FRONT LOADING DISC(CDM-H1503) TRAY (CDM-H1503) HOME TRAY (CDM-H1503) MABUCHI 1503 T/D SENSOR LOADING(CDM-H1503) DECK/MECHA MAIN CDM-H1503V OTH DECK/MECHA PULLEY CDM-H1503V M LOADING (CDM-H1503) PU UP (CDM-H1503) PU DOWN (CDM-H1503) CAM (CDM-H1503) HOME CDM-H1503 MOLD CLAMP ASSY MAIN (CDM-H1503) S/W CLOSE HOME LOADING (PULLEY 8.6) MAIN (CDM-H1503) HOME 3CD CHANGER MOLD RUBBER PU(CDM-H1303) COIL 3 CD CHANGER COIL 50 3CD CHANGER 3X12X12FNM 3X9X12FZMY #NAME? 3X12X10FZMY #NAME? SCREW 2.6X10X10XFZMY CDM-H813 #NAME?
170 171
A30 A35 151 153 155 156 159 162 163 164 166 167 168 169
164
416
172 173 175 177 184
177 172 175
185 186 187 416 417 418 419 420 421 422
3-7
3-8
SECTION 4. SPEAKER SECTION
MODEL: LMS-U1350
859 851 852
861
858 856 855 854 857 (RIGHT) 863 (LEFT)
853
864
860 850 (RIGHT) 862 (LEFT)
- 4-1 -