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.
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.
❏ 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.
❏ SPECIFICATIONS LPC-LM440A MODEL SECTION LPC-LM445A Power supply Refer to the back panel of the unit. Power consumption Mass 5.1kg External dimensions (W x H x D) 456 x 178 x 338 mm Output Power 5W X 2 , 10W Speakers 3.2Ω...
SECTION 2. ELECTRICAL ❏ ADJUSTMENTS 1.TAPE DECK ADJUSTMENT DECK MODE TEST TAPE TEST POINT ADJUSTMENT ADJUST FOR PLAY BACK MTT-114 L/R Output Azimuth adjusting screw L/R Maximum 2.RECORD BIAS ADJUSTMENT DECK MODE TEST TAPE TEST POINT ADJUSTMENT ADJUST FOR AUTO-RVS 75KHz±5KHz C465 OR C415(DECK REC MODE...
• MAIN POWER Main Power input (AC-cord in) Check the Voltage-selector LCD Display ”Hello” 110V/230V (Duble Voltage only) Check the DC out Check the Fuse Replace the Fuse of C202(+) Check theD901,D902, Replace D201,D202,D203D204 D903,D904(POWER B`D) Q251 Emittor Voltage REPLACE Q251 Check(.9.6V) IC271 Vout Voltage Check(.5.2V) REPLACE IC271...
• MUTING CIRCUIT(MUTE) Dose “HIGH ”appear at Check the “HIGH ”of the Check the IC101 Q601,Q651,Q256(SUB-W)“B ” IC101 Pin 9,47 Check the pattern Check the “LOW ”of Q601, Replace the Q601,Q651, Q605,Q256 “E ” Q256 MUTE • FUNCTION MODE AUDIO ABNORMAL TAPE FUNCTION Check the signal input of IC301 Pin 3,26...
Page 21
• IC301 TROUBLESHOOTING Check the Power supplying to Check the DC Output of IC301 pin 1 Q301(.6.8V) Check the CLK Data of Check the Data of Check the IC101 IC301 pin 14,15 IC101 pin 6,7 CD °˙TAPE Function) Check the Pattern Check the IC101 Function Replace the IC301 Selector...
Page 22
• TUNER PACK TROUBLESHOOTING Check the Tuner Power of Check the DC output of Check the “high ” PN403 Pin 2 “Tu-B+” “HIGH ”Q231 “C ” Q232 “B ” Check the DC output Q233 “E ”,pattern CE :Chip Emable DI :Data Input(From u-com) DO :Data Output(to u-com) CLK :Tuner Mode Clock Replace Tuner pack or...
Page 24
2) REC Check signal out of Check signal in from IC301 Replace IC301 IC401 Pin 10,21 IC301 Pin 7,22) Check the signal of IC401 Replace IC401 Pin 7,24 OR Pattern Is the normal? Check REC_B+Voltage(9V) Check Q211 “E ” Voltage(9V) Check Q211 “E ”...
SECTION 3. EXPLODED VIEWS NOTE) Refer to SECTION 4 REPLACE- MENT PARTS LIST in order to look for the part number of each part. CAUTION Exposed blade will cause severe injury.
Page 50
• DECK MECHANISM (LPC-LM440) LOCA.NO. PART NO. DESCRIPTION SPECIFICATION 6720AF0013A DECK,AUDIO CFM3211 TOKYO PIGEON L-SINGLE 6768RZQP01A DECK MECHANISM PARTS 50-093-41144 PIGEON CST MOTOR( 6768R-JP03A DECK MECHANISM PARTS 50-093-4674 PIGEON PULLEY/FLYW 6768RZGP002A DECK MECHANISM PARTS 50-093-41136 PIGEON GEAR ASSY CLUTCH 6768R-AP01C DECK MECHANISM PARTS 50-239-4072 PIGEON ARM CWL44 6768R-GP01J...
Page 51
• DECK MECHANISM (LPC-LM445) LOCA.NO. PART NO. DESCRIPTION SPECIFICATION 6720AF0014A DECK,AUDIO CRM3213 TOKYO PIGEON L-SINGLE 6768RZQP01A DECK MECHANISM PARTS 50-093-41144 PIGEON CST MOTOR 6768R-JP03A DECK MECHANISM PARTS 50-093-4674 PIGEON PULLEY/FLYW 6768RZGP002A DECK MECHANISM PARTS 50-093-41136 PIGEON GEAR ASSY CLUTCH 6768R-AP01C DECK MECHANISM PARTS 50-239-4072 PIGEON ARM CWL44 6768R-GP01J...