Pioneer hfe pioneer cx-680 service en free download

File name hfe_pioneer_cx-680_service_en.pdf

Service Manual ORDER NO. CRT2216 CD MECHANISM MODULE CX-680 - This Service Manual outlines operations of the CD mechanism module used in the models listed blow. - For repair, use this Service Manual and the Service Manual of the model used in the system. Model Service manual CD mechanism module CD mechanism unit DEX-P1R/UC DEH-P946/ES CRT2206 CXK5101 CXB1699 DEX-P1/ES DEH-P945R/EW CRT2207 CXK5101 CXB1699 DEX-P99R/EW CONTENTS 1. CIRCUIT DESCRIPTIONS ... 2 2. MECHANISM DESCRIPTIONS ... 15 3. DISASSEMBLY ... 17 CX-680 1. CIRCUIT DESCRIPTIONS 1.1 Preamplifier (UPC2572GS: IC101) The preamplifier processes pickup output signals to EFM-IN 1 EFM comparator FE 38 FE-BAL RF BAL HPF generate signals to be sent to the servo, demodula- envelope AGC-OUT 2 AGC TE 37 TE-BAL tor, and controller. The preamplifier with built-in BAL C AGC 3 Detection 36 ASY photodetector converts signals from the pickup into Vcc X12 intermediate voltage in the pickup. Then, addition is RF-IN 4 35 EFM-OUT made in the RF amplifier (IC101) to obtain RF, FE, TE, RF-OUT 5 34 C.DEF Peak and TE zero cross signals. The system consists of the