Kenwood DPC-191 Service Manual

Also see for DPC-191: Instruction manual Instruction manual Instruction manual Instruction manual

Contents

Kenwood DPC-191 Service Manual Manual pdf 3 page image

3DPC-191/391/492 DCIRCUIT DESCRIPTION. Microprocessor : (MN171603 HFJ1)–1 Pin descriptionPin No. Pin name I/O Function description Active1, 2 – I NOT USED3 AVSS – GND4 BBS O BBS CONTROL SIGNAL OUTPUT ON = "H"5 DATA O REMOTE CONTROL SIGNAL OUTPUT6, 7 – NOT USED8 KEY I KEY INPUT9 HOLD I HOLD ON/OFF CONTROL ON = "H"10 ESP I ESP ON/OFF CONTROL ON = "L"11 LOW BATTERY I BATTERY VOLTAGE DETECTION LOW BATT. = "H"12 AVDD – SUPPLY VOLTAGE13~15 VLC1~VLC3 – LCD DRIVER BIAS CONTROL16~19 COM1~COM4 O LCD COMMON SIGNAL OUTPUT (COMMON1~4)20~33 SEG0~SEG13 O LCD SEGMENT SIGNAL OUTPUT (SEG0~SEG13)34, 35 SEG14, 15 O NOT USED36 MODE-M I MEMORY SELECT 4M = "H" OTHER = "L"37 D-CNT I NOT USED OUT = "H" (ESP OFF)38 MODE-A I USE CUE/REV MODE39 MODE-B I NOT USED40 STDBY O NOT USED41~44 – – NOT USED45 DOOR OPEN I DOOR SWITCH DETECTION OPEN = "H"46 PSET I PICKUP INITIAL POSITION47 BTCHK I BATT. VOLTAGE DIRECTION.48~51 – I NOT USED52 POWER O POWER SUPPLY CONTROL.53 BAT O BATTERY CONTROL OUTPUT CHARGING = "H"54 D MUTE O MUTE CONTROL ON = "H"55 SBCK O SUB CODE READ TIMING CLOCK FOR MN662740RE56 FCLK I FRAME CLOCK SIGNAL from MN662740RE57 FLAG I FLAG SIGNAL INPUT from MN662740RE58 IPFLAG I CORRECTION = "H"59 – I GND60 STAT I STATUS SIGNAL from DSP61 SENSE I SENSITIVE SIGNAL from DSP62 TLOCK I TRACKING SERVO IN = "L"63 FLOCK I FOCUSING SERVO IN = "L"64 MCLK O COMMAND CLOCK for MN662740RE65 MDATA O COMMAND DATA for MN662740RE66 MLD O COMMAND DATA LATCH (LOAD) for MN662740RE67 – O NOT USED68 RST I SYSTEM RESET INPUT69 X1 I GND70 X2 O NOT USED71 Vss – GND72 – O NOT USED73 SMCK I EXTERNAL SYSTEM CLOCK = 4.2336MHz