Kenwood TK-360G Service Manual

Also see for TK-360G: Instruction manual Instruction manual Service manual

Contents

TK-360G/370G21CIRCUIT DESCRIPTION/SEMICONDUCTOR DATAFig. 10 Control system8. CONTROL SYSTEMKeys and channel selector circuit.The signal from keys and channel selector input tomicroprocessor directly as shown in fig. 10.Channel selectorIC13CPUCN501CN1TK-370GTK-360GEN187325EN3EN2KOUT0KOUT1KOUT2KOUT3KIN0KIN1KIN2KIN3KIN41627KEYADPTTMONISWLAMPSWPTTSW1 2 3 A4 5 6 B7 8 9 C∗ 0 # D5M47k47k100kSEMICONDUCTOR DATALCD Driver : LC75823W (Display UNIT IC501)(TK-370G only)n Block diagramLATCH & DRIVERSHIFT REGISTERCOMMONDRIVERADDRESSDETECTORCLOCKGENERATORVDDCECLDI VSSOSCINHV DD2V DD1COM1 COM2 COM3 S52 S51 S1Pin No. Name I/O Active Function1-52 S1-S52 O - Segment output for displaying datatransferred form serial data.53-55 COM1-COM4 O - Common drive output.Frame frequency fo=(fosc/384)Hz56 VDD - -The display to turn off57 INH I L INT=L : Turn offINT=H : Turn onApply 2/3 the LCD drive bias voltage58 VDD1 I - form outside. If 1/2 the bias is applied,connect to VDD2.Apply 1/3 the LCD drive bias voltage59 VDD2 I - form outside. If 1/2 the bias is applied,connect to VDD1.60 VSS - -61 OSC I/O - Oscillation terminal62 CE I H Chip enable. Serial data transfer terminal.Connected to the microprocessor.63 CL I Synchronizing clock. Serial data transfer terminal.Connected to the microprocessor.64 DI I - Trnsfer data. Serial data transfer terminal.Connected to the microprocessor.n Pin function