Jul, 1998 JP-8080 U T S R Q P O N M L K J I H G F E D C B A 1 2 3 4 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 UPC4570HA + IC1C 10 10 1 5 9 - 20 VR21B 20 VR1B PHONES MIC IN TO PANEL C44 10/50 - 15 10/50 + 15 C41 10 VR22B 10 VR2B YKB21-5277 JK401 20 20 for Smart-Media to MAIN D 10 20 VR23B 10 20 VR3B 10 1 3 4 2 UPC 4570HA + F F IL-FPC-25ST-N 1 1 2 2 3 3 4 4 5 5 6 6 1 5 9 IC5C VR4B - L401 L501 L502 - 15 10/50 C45 10/50 C42 + 15 VR5B D D UPC4570HA + VR6B F F 52147-0310 3 3 2 2 1 1 CN401 IC9C MIC BOARD F CN015S-3013-0 VSS 1 CLE 2 ALE 3 WE 4 WP 5 I/O1 6 - 15 1 5 9 - + 15 20 VR27B 20 VR7B 10/50 C74 10/50 C71 10 VR28B 10 VR8B 20 20 10 20 VR29B 10 20 VR9B TO PANEL JP-8080 PHONES BOARD ASSY JP-8080 MIC BOARD ASSY JP-8080 SW BOARD ASSY JP-8080 CARD BOARD ASSY JP-8080 PANEL BOARD ASSY 10 20 VR30B 10 20 VR10B 51048-0400 CN501 CARD BOARD 10 10 4 4 3 3 2 2 1 1 Name Parts Code 20 VR31B 20 VR11B P HONES_L P H O NES_R 10 VR32B 10 20 20 VR12B UPC4570C 10 20 VR33B 10 VR13B 10 IC601C 20 C501 1000P 20 EVJ Y1 5 F02 A53 VR601C - 15 8 4 + - + 15 71017590 71017589 71017578 71017567 71017556 10 20 VR34B 10 VR14B F 10/50 C604 10/50 C603 10 20 F C502 1000P 20 VR35B 10 20 VR15B EVJ Y1 5 F02 A53 13 10/50 C601 10 10 1 2 3 VR601A 12 20 VR36B 10 20 VR16B YKB21-5268 11 R 10 VR37B 10 JK501 R601 100k 3 - 2 20 20 VR17B UPC4570C + IC601A 10 VR38B 10 SW BOARD PHONES BOARD 1 20 20 VR18B 10 20 VR39B 10 VR19B 20 EVJ Y1 5 F02 A53 23 10/50 C602 10 20 VR40B 10 VR20B VR601B 22 10 20 21 L 20 VR41B R602 100k 5 - 6 20 SW301A S D DLB1-B2-D-2 1 2 UPC4570C + IC601B 10 VR43B 7 10 VR44B 20 B2P3-VH 2 2 1 1 CN301 R-RTN R_AGND L-RTN L_AGND R-SEND L-SEND PHONES-R PHONES-L FGND FGND FGND FGND PHONES-L PHONES-R D - 15 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 + 15 4 4 3 3 2 2 1 1 10 51015-1200 CN601 51048-0400 CN602 20 SW301B S DDLB1-B2-D-2 VR BOARD to MAIN to PHONES 27 FGND 3 FGND 4 FGND 4 10 FGND 9 8 7 6 5 L_AGND L-RTN R-RTN L_AGND L-RTN 4 3 2 11 VR601B 53 EVJ Y1 5 F02 A53 24 23 22 21 20 19 18 17 21 20 19 18 17 16 15 15 14 14 13 12 13 12 11 10 11 10 9 8 9 8 7 6 7 6 5 5 4 3 4 3 2 2 1 1