Matsushita Electric KX-TC1461LAB, Руководство по обслуживанию

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18. EXPLANATION OF IC TERMINALS (RF Unit)
18.1. IC1
Pin No. Pin Description Pin No. Pin Description
1 EN Enable input 29 QUAD_IN FM detector input
2 CDET COMP detection 30 QUAD_OUT IFamp2 output
3 SF_OUT Splatter filter output 31 NDET Noise Detection
4 SFC2 External splatter filter 32 RSSI_DET RSSI Detection
5 SFC1 COMP output 33 2NDIF_IN IFamp2 input
6 COMP_DC COMP output VREF 34 IFREF1 IFamp2 VREF
7 POWERSAVE Power Down input 35 1STIF_OUT IFamp1 output
8 MIC_OUT Microphone amp
output 36 VCC1 VCC1
9 MIC_IN Microphone amp input 37 1STIF_IN IFamp1 input
10 BREF Audio system
reference output 38 GND1 Ground 1
11 PD_OUT Power Down output 39 RXVCC RX-counter VCC
12 VCC2 VCC2 40 PDL BL, PD threshold
selection
13 DOUT Data amp output 41 VSS RX-counter Gnd
14 GND2 Ground 2 42 FIN_RX RX-counter input
15 SPOUT2 SP amp output 1 43 SIGOUT LD, RSSI, ND output
16 SPOUT1 SP amp output 2 44 BATTLOW BatteryLow output
17 SPIN SP amp input 45 VSSS Logic Gnd
18 PE Half-Mute detection 46 RXPD RX-phase comparator
output
19 ZAP ZAP write 47 PLLREG Logic Power Source
Output
20 GND3 Ground 3 48 TX_PD TX-phase comparator
output
21 EXPOUT EXP output 49 TXVCC3 TX-counter Vcc
22 DIN Data amp input 50 FIN_TX TX-counter input
23 EDET EXP detection 51 TXVSS TX-counter Gnd
24 PRE_OUT Pre-amp output 52 OSCI Xtal oscillator
25 PRE_IN Pre-amp input 53 OSCO Xtal oscillator
26 DET_OUT FM Detector output 54 Xtal oscillator
27 NF_IN Noise filter input 55 DATA Serial data input
28 NF_OUT Noise filter output 56 CLK Click input
19. CABINET AND ELECTRICAL PARTS LOCATION
(BASE UNIT)
35