Panasonic CX-3016 free download

File name CX-3016.pdf

Service Manual DVD MECHANISM MODULE(MS3) ORDER NO. CRT3056 CX-3016 - This service manual describes the operation of the DVD mechanism modules incorporated in the models listed below. - When performing repairs use this manual together with the specific manual for the model under repair. - The DVD mechanism MS3 has VIDEO-type and ROM-type models. This manual covers the operations for both models. Model AVH-P6500DVD/UC DVH-P5000MP/UC AVH-P7500DVD/UC Service Manual CRT3038 CRT3074 CRT3039 DVD Mechanism Module CXK6310 CXK6312 CXK6300 CONTENTS 1. CIRCUIT DESCRIPTIONS ...2 2. MECHANISM DESCRIPTIONS...15 3. DISASSEMBLY ...20 PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 2003 K-ZZU. APR. 2003 Printed in Japan 1 2 3 4 A 1.Circuit descriptions 1.1 Front-end processor (FEP) section (AN8703FH: IC1101) The IC1101 generates servo signals for focus and tracking operations, processes the RF signal, and controls the laser power of the pickup. For servo signal processing, the IC contains a focus operational amplifier, a focus balance adjustment circuit, a threebeam tracking operational amplifier, a phase-difference tracking detection circuit, a tracking balance adjustment circuit, and an envelope detection circuit. For the RF signal processing, the AGC and equalizer functions are contained in the IC. B +5V 3.9 3.9 3.9 3.9 CN1101 For CD 170mV ­ + LPC02 4 24 78LD + CDLD1 CDLD0 C 3 LPC2 +5V + 180mV ­ + LPC01 2 26 65LD + DVDLD1 CD LD DVD LD 3.9 3.9 3.9 3.9 +5V MD 5 78MD For DVD D 1 LPC1 DVDLD0 7 65MD AN8703FH PU UNIT 1.1.1 APC circuit E The light output of laser diodes (LD) has largely negative thermal characteristics. If they are driven with a constant current, the laser power level will not be constant. The APC circuit is designed to control the current so that the laser power becomes constant through the monitor diode (MD). The IC AN8703FH contains two APC circuits, one for DVDs and the other for CDs. The LD current values for DVDs can be calculated by dividing the voltage between the DVDLD1 (or CDLD1 for CDs) and 5V line by 15.6 ohms (3.9 ohms x 4): approximately 26mA and 44mA for DVDs and CDs respectively. F 2 1 2 CX-3016 3 4 5 6 7 8 1.1.2 Focus error (FE) generating circuit A CN1101 16 57 VIN1 (49 VIN5) G4 58 VIN2 (50 VIN6) G4 59 VIN3 (51 VIN7) 60 VIN4 (52 VIN8) 1­f 1+f + ­ ­ + 22 FEOUT 21 FEN FEY FEX FE 117 AD0 B1 B2 15 B VHALF B3 13 VHALF 1.65V Control B4 11 MNZS26EDCUB AN8702 FH 7 FBAL The pin numbers and names in the brackets are for CDs. The circuits for CDs and DVDs are identical, except for the input terminals