Repair
025-9368H
209
MODEL 7XX CONTROL BOARD (702-9793D)
Parts List (Continued)
ITEM QTY COMPONENT REFERENCE PART NO. DESCRIPTION PART REFERENCE
----------------------------------------------------------------------------------------------------------------------------
129 0 U12# 340-2003 RELAY DRIVER 50V/.5A 2003
130 1 Q19 340-3821 XSTR,JFET,N-CHANNEL,FOR 2V BIAS AGC,T0-92 MPF3821
131 10 QX1,Q1,QX2,Q7,Q9#,Q10#, 340-3904 XSTR,NPN,40V/200MA,TO92 2N3904
Q11,Q12,Q13,Q14,Q15,Q16
NOTE 21
132 1 Q20 340-3906 XSTR,PNP,40V/200MA,TO92 2N3906
133 1 Q8 340-5460 XSTR,JFET,P-CHAN,40V,5MA,TO92 PKG 2N5460
134 5 Q2,Q5,Q6,Q17,Q18 340-7000 XSTR,MOSFET,N-CHANNEL,60V/ 0.2A,5 OHMS,TO-92 2N7000
135 2 CR8,CR9,CR14#,CR15# 342-0001 DIODE,SILICON,1A,100V,D0-41 1N4002
136 1 CR4 342-0103 DIODE,SCHOTTKY,0.37V @ 1MA TYP SD103A
137 9 CR1,CR2,CR3,CR5,CR6,CR18, 342-3009 DIODE,SILICON,100V,250MW 1N4148
CR19,CR20,CR21
138 4 CR10,CR11,CR12,CR13 342-3011 DIODE,SILICON,1A ,1000V 1N4007
139 1 CR22 343-3017 DIODE,ZENER,6.2V,1/2W,5% 6.2V 1/2W
140 1 CR7 343-3029 DIODE,1W 5.1V +-5% MOTOROLA ONLY 5.1V
141 0 CR17#,CR16# 343-3035 DIODE,ZENER,12V,1W,5% 12V
142 1 SW1 371-0024 SWITCH,PB,SPST,MOM,R/A,PWB MNT
143 1 Y2
NOTE 4
376-0358 XTAL,3.579545MHZ,CL=18pF,HC-49 3.58MHZ
144 1 Y1
NOTE 4
376-0737 XTAL,7.3728MHZ,CL=18,20pF,HC-49 7.3728MHZ
145 1 Y3
NOTE 4
376-1106 XTAL,11.0592MHZ,CL=18pF,HC-49 11.0592MHZ
146 1 Y4
NOTE 4
376-1600 XTAL,16.000 MHZ,CL=18,20pF,HC-49 16.000MHZ
147 0 K2# 380-0001 RELAY,SPDT,12V,150K OP@1A,24VDC
148 0 K1#,K3#,K4#,K5# 380-0030 RELAY,DPDT MINI-DIP,12 V COIL
149 1 J5 401-0059 CONN,15-POS MALE HEADER,PC-RA 0.200"
150 0 J2#,J3#,J4# 401-0080 6-PIN LO PRO R/A TELCO
151 1 J1 401-0663 CONN,D-SUB,9 PIN,FEMALE,PC-R/A,METAL-SHELL
152 1 P2
NOTE 1
401-2648 8-POS MALE .156" CTRS SQR
153 1 J6 401-6001 10-POS FEMALE
154 1 J7 401-6005 6-POS FEMALE
155 0 TP9# 403-0001 01 OF 401-0052
156 1 JP4#,JP5#,JP6#,JP7#,JP8#, 403-0002 02 OF 401-0052
JP9#,JP10#,JP11#,JP12#,
JP13#,JP17#,JP18#,JP19#,
JP20#,JP28
157 9 JP1,JP2,JP15#,JP22,JP23, 403-0003 03 OF 401-0052
JP24,JP25,JP26,JP27,JP29,
JP30#
158 1 JP31 403-0202 04 OF 401-0052 [2 x 2]
159 2 JP21,JP32 403-0203 06 OF 401-0052 [3 x 2]
160 1 P1
NOTE 14
403-1015 15 OF 401-0036
161 1 PB4 403-4008 08 OF 401-0262
162 2 P3,PA4 403-4010 10 OF 401-0262
163 4 TP1#,TP2#,TP3#,TP4,TP5, 404-1001 01 OF 401-1364
TP6,TP7,TP8#
164 2 JP3#,JP14,JP16 408-0001 WIRE JUMPER (24GA WIRE .35)
165 1 F1 416-0018 FUSE,1A 1A
163 7 XVR1,XVR2,STANDOFFS 210-0001 KEP NUT, ZINC
164 1 XVR1 220-0102 440 X 3/8 PAN PHILLIPS
165 1 XVR2 220-0108 440X1/4 PAN PHILLIPS
166 2
NOTE 16
250-0101 STANDOFF, 440 X 1/4, W/STUD
167 2
NOTE 5
250-0104 STANDOFF, 440 X 1/2, W/STUD
168 1
NOTE 9
250-0107 STANDOFF, 440 X 7/16, W/STUD
169 1 U13
NOTE 7
321-6264 8K X 8 RAM 150NS (ONS WRITE HOLD)
170 1 U22
NOTE 3
321-8256 SRAM, 32K X 8, 100NS, 50UA FROM 0-70C
Summary of Contents for 748
Page 2: ......
Page 68: ...Operation 54 025 9368H Notes...
Page 110: ...Programming 96 025 9368H Notes...
Page 216: ...Feature Set Reference 202 025 9368H Notes...
Page 219: ...Repair 025 9368H 205 MODEL 7XX AUDIO BLOCK DIAGRAM 006 0077A...
Page 225: ...Repair 025 9368H 211 MODEL 7XX CONTROL BOARD 008 9793D Schematic Sheet 1 of 5...
Page 226: ...Repair 212 025 9368H MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 2 of 5...
Page 227: ...Repair 025 9368H 213 MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 3 of 5...
Page 228: ...Repair 214 025 9368H MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 4 of 5...
Page 229: ...Repair 025 9368H 215 MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 5 of 5...
Page 230: ...Repair 216 025 9368H MODEL 7XX CONTROL BOARD 702 9793D Silkscreen...
Page 233: ...Repair 025 9368H 219 MODEL 7XX SINGLE E E CARD 008 9794A Schematic...
Page 234: ...Repair 220 025 9368H MODEL 7XX SINGLE E E CARD 702 9794A Silkscreen...
Page 236: ...Repair 222 025 9368H MODEL 4XB VOICE CARD 008 9236F Schematic...
Page 237: ...Repair 025 9368H 223 MODEL 4XB VOICE CARD 702 9236F Silkscreen...
Page 239: ...Repair 025 9368H 225 MODEL 4XB DIAL CLICK BOARD 008 9242E Schematic...
Page 240: ...Repair 226 025 9368H MODEL 4XB DIAL CLICK BOARD 702 9242E Silkscreen...
Page 254: ...Quick Reference 240 025 9368H Notes...
Page 258: ...Specifications 244 025 9368H...
Page 259: ...Specifications 025 9368H 245...