Page 2 - BLOCK DIAGRAM
KDC-MP925/W8027 2 TUNER CD CH MECHA PANEL TDF UNIT SWITCH UNIT (X16-208) (X16-256) (X34- ) (X16-253) DISPLAY UNIT BUFFER RDSDECODER BUFFER REMO RESET SW KEY MATRIX FL SYSTEM MPX E-VOL & ACC DET TEL MUTE B.U DET SYSTEM DRIVER MUTE POWERIC ACC TEL MUTE BACK UP SP OUT (FL) RESET KEY ILL IC14 IC2 IC...
Page 3 - COMPONENTS DESCRIPTION
KDC-MP925/W8027 3 ● SUB CIRCUIT UNIT (X16-2080-10) Ref No. Application / Functions Operation / Condition / Compatibility IC1 E2PROM E2PROM for security ● DISPLAY UNIT (X16-2530-11) Ref No. Application / Functions Operation / Condition / Compatibility IC1 Panel microprocessor Panel control microproce...
Page 5 - MICROCOMPUTER’S TERMINAL DESCRIPTION
KDC-MP925/W8027 5 Ref No. Application / Functions Operation / Condition / Compatibility Q27 BU detector When Q27 base level goes H, Q27 turned ON Q29 ACC detector When Q29 base level goes H, Q29 turned ON Q30,31 Muting driver When base level goes L, muting driver is turned ON Q201 Buffer Noise detec...
Page 11 - TEST MODE
KDC-MP925/W8027 11 ● How to enter the test mode While pressing and holding the Preset 1 and Preset 3 keys, reset the unit. ● How to exit from the test mode While holding the Preset 6 key, reset the unit. Note : Turning ACC off, power off, momentary power down or panel detaching does not terminate th...
Page 13 - Security information; Note : Don’t enter the panel security set up for new ROM; Method of registration of the security code after; Note 1 : All Clear is not applicable to the security code of; How to inscription the panel security code; Note : E2PROM connection is NG when display is “P-ROM
KDC-MP925/W8027 13 ● Security information 1. Forced Power ON mode (All models) Even when the security (Cord) is approved, resetting the unit while holding the Q and Preset 4 keys makes it pos- sible to turn the power ON for 30 minutes. After 30 minutes have elapsed, it is not possible to return to t...
Page 31 - Parts with the exploded numbers larger than 700 are not supplied.
KDC-MP925/W8027 31 EXPLODED VIEW (MECHANISM) 3 2 1 B A * CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual. Please refer to service manual for X92-4450-0x (B51-7889-00). ABCEFGHJ : N09-6192-05: N09-6191-05: N09-6004-05: N09-6193-05: N09-6194-05: N19-2163-04: N39-2020-46: N09-6196-05 φ ...
Page 33 - PARTS LIST
KDC-MP925/W8027 33 Indicates safety critical components. ✽ New parts Parts without Parts No. are not supplied.Les articles non mentionnes dans le Parts No. ne sont pas fournis.Teile ohne Parts No. werden nicht geliefert. Ref. No. A d d N e w Parts No. Description Desti- nation Ref. No. A d d N e w P...
Page 42 - KENWOOD CORPORATION; SPECIFICATIONS
KDC-MP925/W8027 KENWOOD CORPORATION 2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan KENWOOD USA CORPORATION P.O. Box 22745, 2201 East Dominguez Street, Long Beach, CA 90801-5745, U.S.A. KENWOOD ELECTRONICS CANADA INC. 6070 Kestrel Road, Mississauga, Ontario, Canada L5T 1S8 KENWOOD ELECTR...