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8

PC Board Assembly

Refer to Figure 5 on page 12 for Item No. location.

NOTE:

Part number 90307477001 is for the board 

without the LEDs. To order the board with the 
LEDs, use part number 90307477001L.

Qty

Ref Des

Part 

Number

Description

1

C8

51821625

47UF, Cap Al 
Elect SMT 25V

1

C6

51821626

100UF, Cap Al 
Elect SMT 25V

1

R12

54131005

10K,POT

1

U4

54680412

LM78L12

2

Q1,Q2

54749000

MMBTA13

4

D1,D2,D
3,D4

58711100

DIODE 1N4148

2

PEM1,P
EM2

59832002

Nut, Self 
Clinching 4-40

2

J1,J2

59958104

Connector, ST 
Locking, 0.059, 
M-4

3

R7,R8,R
9

102404300

10.0K Ohm, Res 
1206 1%

2

R1,R2

102404333

22.1K Ohm, Res 
1206 1%

1

R35

102404384

75.0K Ohm, Res 
1206 1%

2

R23,R24

102513000

0 Ohm, Res 1206

7

R13,R16
,R18,R2
6,R27,R
28,
R29

102513100

10 Ohm, Res 1206 
5%

1

R34

102513102

1.0k Ohm, Res 
1206 5%

1

R17

102513154

150k Ohm, Res 
1206 5%

1

R10

102513472

4.7k Ohm, Res 
1206 5%

2

R14,R15

102513473

47k Ohm, Res 
1206 5%

1

R21

102513752

7.5K Ohm, Res 
1206 5%

1

C17

102879208

220PF, Cap 0805 
X7R 50V

2

C1,C2

102880237

0.22UF, Cap 0805 
X7R 50V

1

C3

102880239

0.33UF, Cap 0805 
X7R 25V

2

C7,C9

102880339

0.01UF, Cap 1206 
X7R 50V

4

C4,C13,
C20,C21

102881351

0.1UF, Cap 1206 
X7R 50V

1

C18

102884510

4.7UF, Cap Al 
Elect SMT 35V

1

C25

102884512

10UF, Cap Al 
Elect SMT 35V

1

C12

102884600

0.1UF, Cap Al 
Elect SMT 50V

1

C10

102884606

1.0UF, Cap Al 
Elect SMT 50V

1

J3

590089005

Connector, ST 
Locking, 0.100, 
M-5

1

U2

760374

Low Power Audio 
Amp MC34119D

1

U1

16030833S
M

LM833

1

TP1

2017001400

Connector, Test 
Point

1

9040747700
0

Raw PCB

1

2515001500

Jumper

1

64106003

Support Bracket

1

C5

517002081

2200UF, Cap  16V

2

C15,C27

517002116

2200UF, Cap  25V

Summary of Contents for IFB-325

Page 1: ...IFB 325 Portable User Station Talent Electronics User Manual 93507488000 Rev E August 2007...

Page 2: ...ess phone number a person to contact regarding the repair the type and quantity of equipment a description of the problem and the serial number s SHIPPING TO THE MANUFACTURER All shipments of product...

Page 3: ...nal Jumper 6 Chapter 3 Replacement Parts 7 Where to Obtain Parts 7 Mechanical Parts 7 Final Assembly 7 Connector Plate Assembly 7 PC Board Assembly 8 Chapter 4 Diagrams 9 Final Assembly IFB 325 Rev P...

Page 4: ......

Page 5: ...ed externally via the intercom system power supply on channel 1 Power ON indicator LED Headset earset jack set for 150 operation Internal jumper selection of intercom channel 1 or channel 2 default to...

Page 6: ...irements Earset 150 to 600 headphones RTS Intercom Channel Input Level 2Vp p 0dBu nominal Input Impedance 200 5 Noise Contribution less than 60dB on the line Headphone Amplifier Voltage Gain 27 3dB fr...

Page 7: ...intercom channel 3 Headset Connector This connector accepts a wide response headset earset such as the RTS Model 2233 or Model 2234 with a 1 4 monaural phone plug 4 Hole Plug This hole is for future u...

Page 8: ...gain access to the jumper disconnect all power and line connections Remove two screws from the top of weach side and two screws from the bottom of each side The jumper location is shown in Figure 2 F...

Page 9: ...lon Body 9160563601 6 Boot Knob 9160563602 7 Screw 4 40x 0 25LG Flat Head 800124001 8 Belt Clip 9110760000 9 Screw 4 40 x 0 25LG Pan Head 51845 038 10 Hole Plug Black 4501261700 11 Screw 6 32X 1875 51...

Page 10: ...7 R 28 R29 102513100 10 Ohm Res 1206 5 1 R34 102513102 1 0k Ohm Res 1206 5 1 R17 102513154 150k Ohm Res 1206 5 1 R10 102513472 4 7k Ohm Res 1206 5 2 R14 R15 102513473 47k Ohm Res 1206 5 1 R21 10251375...

Page 11: ...88 000 Figure 3 Final Assembly IFB325 9020 7477 001 Figure 4 Connector Plate Assembly IFB325 9030 7477 001 Figure 5 PC Board Assembly IFB325 9027 7477 001 Figure 6 Figure 7 and Figure 8 Schematic IFB3...

Page 12: ...10 FIGURE 3 Final Assembly IFB 325 Rev P...

Page 13: ...11 FIGURE 4 Connector Plate Assembly IFB325 Rev G...

Page 14: ...12 FIGURE 5 PC Board Assembly IFB325...

Page 15: ...13 FIGURE 6 IFB Schematic Page 1 90277477000...

Page 16: ...14 FIGURE 7 IFB Schematic Page 2 90277477000...

Page 17: ...15 FIGURE 8 IFB Schematic Page 3 90277477000...

Page 18: ...16 FIGURE 9 Connector Assemblies IFB325...

Page 19: ...17 Notes...

Page 20: ......

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