Service Bulletin

523-0817821-001000

NAVIGATION

TDR-94 ATC/MODE S TRANSPONDER (CPN 622-9352-007/008/207/308/309)

TDR-94D ATC/MODE S TRANSPONDER (CPN 622-9210-007/008/207/308/309)

CPU I/O Programmed Circuit Card A5

(CPN 653-3674-003/004/005/006/007/008/009/010/011/012/013/014/015/016/019/020/021/022/023/024)

Video Processor Circuit Card A6

(CPN 687-0726-004/005/006/007)

SERVICE BULLETIN 508

ENSURES CORRECT EHS SELECTED ALTITUDE

REPORTING AND ADDS PRO LINE FUSIONTM CAPABILITY

(CONVERTS -007/207/008/308/309 TO -310)

TRANSMITTAL INFORMATION SUMMARY

Summary

This is the original issue of SB 508 for the TDR-94( ) ATC/Mode S Transponder.

Service Bulletin Revision History

REVISION DATE OF RELEASE

Initial Release September 16, 2009

NOTE: This service bulletin may be installed only by Rockwell Collins, Inc. or an authorized

Rockwell Collins, Inc. Service Center.

NOTE: Implied by reference from this service bulletin, previously issued service bulletins that are

applicable to the old unit (to be converted) are also applicable to the unit created by this

service bulletin. Mark out all SBs that are incorporated. The new unit part number is

identification of the installation of this service bulletin. Do not mark out Service Bulletin 508.

Export Control Classification Notice (ECCN) for this document is 6E991.

© Copyright, 2009 Rockwell Collins, Inc., All rights reserved

Sep 16/09 TDR-94( )-34-508

Page 1 of 26
Service Bulletin

Software License and General Conditions of Sale

For each software license procured, the Software License for Equipment Specific Software, reproduced below, shall apply.

Software License for Equipment Specific Software

Software delivered hereunder, either embedded in equipment described herein or specifically designed for use in or with such

equipment, is copyrighted by the seller and shall remain the sole and exclusive property of seller. Seller grants the buyer a perpetual,

worldwide, non-exclusive license to use the software only in or with the equipment. The buyer shall not copy, modify, or disassemble

the software, or permit others to do so. Buyer shall not transfer the license granted hereby or possession of the software except as part

of or with the equipment, such transfer being subject to the restrictions contained herein. Seller may terminate this license upon written

notice for violation of any of the terms of the foregoing license.

Should the customer have any questions concerning the scope of permitted use, please contact your Rockwell Customer Service Engineer.

Rockwell Collins' General Conditions of Sale 074-8431-866 (Rev 06/03) are incorporated herein by reference.

Sep 16/09 TDR-94( )-34-508

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Service Bulletin

1. Planning Information

A. Effectivity

The modification procedure described in this service bulletin changes the part number of

the equipment type as listed below.

COLLINS PART NUMBER

UNIT

BEFORE CONVERSION AFTER CONVERSION

622-9352-007 622-9352-310

622-9352-008 622-9352-310

622-9352-207 622-9352-310

622-9352-308 622-9352-310

TDR-94

622-9352-309 622-9352-310

622-9210-007 622-9210-310

622-9210-008 622-9210-310

622-9210-207 622-9210-310

622-9210-308 622-9210-310

TDR-94D

622-9210-309 622-9210-310

NOTE: The modification contained in this service bulletin is strictly applicable to the

status(es) listed and not applicable to additional status(es) within the equipment

type or additional status(es) within the equipment family.

NOTE: Installation of units modified in accordance with this service bulletin may require

a change to the aircraft TC/STC data unless the new equipment part number is

already included in the data.

B. Concurrent Requirements

Service Bulletin 21, 24 and 29 must be installed prior to or at the same time as this

service bulletin.

C. Reason

(1) Condition Modification Affects

Units installed in aircraft that are configured for CSDB altitude sources and may

intermittently transmit incorrect Selected Altitude data in an Enhanced Surveillance

reply. Current units are not Pro Line FusionTM capable.

(2) Extent Condition Encountered

-007/207/008/308/309 units configured for CSDB altitude sources that are required

to transmit Enhanced Surveillance data. All units required to operate in a Pro Line

FusionTM installation.

Sep 16/09 TDR-94( )-34-508

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Service Bulletin

(3) Scope of Modification

This is a permanent change.

(4) Expected Benefits of Modification

Enhanced Surveillance replies with Selected Altitude data from CSDB altitude

sources will contain the correct value. Converted units will have the capability to

operate in a Pro Line FusionTM installation.

D. Description

Update software. Replace PROM. Replace A5 card if necessary. Change identification

plate.

E. Compliance

Optional.

F. Approval

TDR-94 (CPN 622-9352-310) conforms to FAA TSO C112 Class 3A2 121 010.

TDR-94D (CPN 622-9210-310 conforms to FAA TSO C112 Class 3A2 121 011.

Installation of this service bulletin changes the part number of the TDR-94/94D as listed

in paragraph 1.A. Installation of units modified in accordance with this service bulletin

may require a change to aircraft TC/STC data unless the new part number is already

included in the data.

G. Labor

Installation of this service bulletin is subject to special pricing. Refer to paragraph 2.A.

H. Weight and Balance

Not affected.

I. Electrical Load Data

Not affected.

J. Software Accomplishment Summary

Software Accomplishment Summary document (CPN 829-8879-112), is written in

accordance with RTCA-DO-178( ).

K. References

TDR-94/TDR-94D (-004 Status and Higher) ATC/Mode S Transponder Component

Maintenance Manual with Illustrated Parts List (CPN 523-0778502) (34-50-96).

Sep 16/09 TDR-94( )-34-508

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Service Bulletin

Avionics Standard Shop Practices Instruction Book (CPN 523-0768039).

All Avionics Service Information Letter 3-93, titled "Non-Procurable Equipment Cleaning

Solutions" (CPN 523-0804806).

All Avionics SIL 05-2, titled "Clarification And Information On Usage And Ordering Of

Collins Nameplates And Modification Plates" (CPN 523-0806340).

All Avionics Service Information Letter 3-03, titled "Disposal of Retired TSO Nameplates"

(CPN 523-0806251).

L. Other Publications Affected

The next full revision to the referenced component maintenance manual with illustrated

parts list will include the information contained in this service bulletin.

Sep 16/09 TDR-94( )-34-508

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Service Bulletin

2. Material Information

A. Cost and Availability

Installation of this service bulletin is subject to special pricing. Please contact a Rockwell

Collins, Inc. Service Center to obtain the price.

This service bulletin may be installed only by Rockwell Collins, Inc. or an authorized

Rockwell Collins, Inc. Service Center.

The equipment owner bears responsibility for cost of installation of this service bulletin.

B. Material Required

Refer to paragraph 2.A. to determine the charge for installation of this service bulletin.

Use the following materials to modify one TDR-94 (CPN 622-9352-007/207).

COLLINS

PART NUMBER

QTY DESCRIPTION

280-3778-050 AR Chart, Modification

685-2622-033

or

685-2622-035

AR Plate, Identification (TDR-94)

280-3847-040 1 Label, Pressure Sensitive

859-6700-010 2 Connector

653-1328-002 1 Cover, Modulator Circuit Card Assembly

653-2283-002 1 Shield, Synthesizer

428-0282-050 AR Wire, Electrical, #30 AWG, Brown

653-3674-018

or

653-3674-022

or

653-3674-024

or

653-3674-026

1 CPU I/O Programmed Circuit Card (TDR-94)

1 831-4505-004 1 EPROM, Label Screening, A5U13

1 Required if using CPN 653-3674-018/022/024 CPU I/O Programmed Circuit Card. CPN 831-4505-004 already installed on

CPN 653-3674-026 CPU I/O Programmed Circuit Card.

Sep 16/09 TDR-94( )-34-508

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Service Bulletin

Use the following materials to modify one TDR-94D (CPN 622-9210-007/207)

COLLINS

PART NUMBER

QTY DESCRIPTION

280-3778-050 AR Chart, Modification

685-2613-031

or

685-2613-033

AR Plate, Identification (TDR-94D)

280-3847-040 1 Label, Pressure Sensitive

859-6700-010 2 Connector

653-1328-002 1 Cover, Modulator Circuit Card Assembly

653-2283-002 1 Shield, Synthesizer

428-0282-050 AR Wire, Electrical, #30 AWG, Brown

653-3674-017

or

653-3674-021

or

653-3674-023

or

653-3674-025

1 CPU I/O Programmed Circuit Card (TDR-94D)

1 831-4505-004 1 EPROM, Label Screening, A5U13

1 Required if using CPN 653-3674-017/021/023 CPU I/O Programmed Circuit Card. CPN 831-4505-004 already installed on

CPN 653-3674-025 CPU I/O Programmed Circuit Card.

Use the following materials to modify one TDR-94 (CPN 622-9352-008/308/309).

COLLINS

PART NUMBER

QTY DESCRIPTION

280-3778-050 AR Chart, Modification

685-2622-033

or

685-2622-035

AR Plate, Identification (TDR-94)

280-3847-040 1 Label, Pressure Sensitive

831-4505-004 1 EPROM, Label Screening, A5U13

Sep 16/09 TDR-94( )-34-508

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Service Bulletin

Use the following materials to modify one TDR-94D (CPN 622-9210-008/308/309).

COLLINS

PART NUMBER

QTY DESCRIPTION

280-3778-050 AR Chart, Modification

685-2613-031

or

685-2613-033

AR Plate, Identification (TDR-94D)

280-3847-040 1 Label, Pressure Sensitive

831-4505-004 1 EPROM, Label Screening, A5U13

C. Special Equipment or Tooling Required

Boardsite Profile Data (CPN 613-6608-112)

Program Data (CPN 829-8884-112, CPN 832-3615-112, CPN 815-7871-112)

Boardsite Interface Adapter (CPN 685-6400-002 or equivalent)

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Service Bulletin

3. Accomplishment Instructions

A. Modification Procedure

CAUTION: THIS EQUIPMENT CONTAINS ELECTROSTATIC DISCHARGE SENSITIVE (ESDS)

COMPONENTS THAT CAN BE DAMAGED BY STATIC VOLTAGES PRESENT IN

MOST REPAIR FACILITIES.

NOTE: For detailed repair/cleaning instructions, refer to Avionics Standard Shop Practices

Instruction Book.

(1) Inspect top level Rockwell Collins part number (CPN).

(a) If CPN is 622-9210-007/207 or 622-9352-007/207, proceed to step 3.A.(2).

(b) If CPN is 622-9210-008/308/309 or 622-9352-008/308/309, proceed to step

3.A.(3).

(2) Modification Procedure for CPN 622-9210-007/207 and CPN 622-9352-007/207

(a) Refer to the Disassembly instructions in the Disassembly section of the

referenced component maintenance manual with illustrated parts list.

Disassemble the unit as required to remove the Main Chassis Assembly

(CPN-653-2254-XXX) and the Transmitter Assembly (CPN 653-2255-0XX).

(b) Refer to figure 1. Locate, remove and discard CPU I/O Programmed

Circuit Card A5 (CPN 653-3674-003/004/005/006/007/008/009/

010/011/012/013/014/019/020).

(c) Install new CPU I/O Programmed Circuit Card A5 according to the following

table. If CPN 653-3674-025 or 653-3674-026 is unavailable, proceed to step

3.A.(2)(d) for instructions for using CPN 653-3674-017 or CPN 653-3674-021

or CPN 653-3674-023 in the top level CPN 622-9210-007/207 and for using

CPN 653-3674-018 or CPN 653-3674-022 or CPN 653-3674-024 in top level

CPN 622-9352-007/207. Otherwise, proceed to step 3.A.(2)(e).

T/L CPN CPU I/O PROGRAMMED CIRCUIT

CARD A5

622-9210-007 653-3674-025

622-9352-007 653-3674-026

622-9210-207 653-3674-025

622-9352-207 653-3674-026

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Service Bulletin

(d) If CPN 653-3674-025 or CPN 653-3674-026 is unavailable, use

CPN 653-3674-017 or CPN 653-3674-021 or CPN 653-3674-023 for top level

CPN 622-9210-007/207; or CPN 653-3674-018 or CPN 653-3674-022 or

CPN 653-3674-024 for top level CPN 622-9352-007/207. Reprogram according

to the following instructions.

1. Install Boardsite Profile (CPN 613-6608-112) into the Boardsite working

directory using the import command from the FILE menu option. Do not

copy the files within DOS, as this will erase the catalog in the working

directory. Specify the drive and directory where the profile exists (either

floppy drive or directory other than the working directory). IMPORT the

board profile CPN 613-6608-112.

2. Install the Program Data (Page 0: CPN 829-8884-112, Page 1:

CPN 832-3615-112, Page 2: CPN 815-7871-112) into the Boardsite working

directory using the TRANSLATE command from the COMMUNICATIONS

menu option. Follow the steps below to translate and combine the three

Program Data files into one Boardsite programming file.

a. Select COMMUNICATIONS from menu.

b. Select TRANSLATE from menu.

c. Select ASCII for conversion from ASCII to Boardsite.

d. Enter location and data file name for Page 0 DOS ASCII FILE

SOURCE.

e. Enter Boardsite name: 831-6270-112.

f. Enter 200 for offset.

g. Enter RETURN for offset hi.

h. Enter 200 for begin address.

i. Enter 2FE00 for block size.

j. Select INTEL MCS-86 HEX OBJ for the I/O format.

k. Enter FF for fill byte.

l. Press ALT-B to begin.

m. After translation of Page 0 is complete, press any key to return to the

translate menu.

n. Select ASCII for conversion from ASCII to Boardsite.

o. Enter location and data file name of Page 1 DOS ASCII FILE SOURCE.

p. Enter Boardsite name: 831-6270-112.

q. Enter 200 for offset.

r. Enter RETURN for offset hi.

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Service Bulletin

s. Enter 10200 for begin address.

t. Enter FE00 for block size.

u. Select INTEL MCS-86 HEX OBJ for the I/O format.

v. Enter FF for fill byte.

w. Press ALT-B to begin.

x. Press “Y” to merge this file with the previous file.

y. After translation of Page 1 is complete, press any key to return to the

translate menu.

z. Select ASCII for conversion from ASCII to Boardsite.

aa. Enter location and data file name of Page 2 DOS ASCII FILE SOURCE.

ab. Enter Boardsite name: 831-6270-112.

ac. Enter 200 for offset.

ad. Enter RETURN for offset hi.

ae. Enter 20200 for begin address.

af. Enter FE00 for block size.

ag. Select INTEL MCS-86 HEX OBJ for the I/O format.

ah. Enter FF for fill byte.

ai. Press ALT-B to begin.

aj. Press “Y” to merge this file with the previous file.

3. Once the Profile and Program Data have been installed in the Boardsite

working directory, the CPU I/O Programmed Circuit Card A5 may be

programmed as follows.

a. Install the CPU I/O Circuit Card on the Boardsite Interface Adapter

(CPN 685-6400-002 or equivalent).

b. Press ESC key

c. Select the COPY command.

d. Select 613-6608-112 circuit card profile.

e. Select the DISK file source.

f. Select 831-6270-112.

g. Press ALT-B to begin.

NOTE: Programming procedure will take approximately 1 minute.

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Service Bulletin

4. Ensure that the programming operation completes with no errors as

indicated on the screen. The Boardsite will return a checksum of 01C4C8C2

and a 32 bit CRC of 4FA7109A.

5. Mark a new label (CPN 280-3847-040) with CPN 831-6270-112.

6. Remove existing label from programmed assembly (CPN 831-6270-XXX)

and replace it with the label marked in the step 3.A.(2)(d)5.

7. Refer to figure 2. Remove EPROM A5U13 (CPN 831-4505-003) and

replace with EPROM (CPN 831-4505-004).

8. Refer to figure 2. If the mod chart is not already on the circuit card, cut the

word MOD and five squares from modification chart (CPN 280-3778-050).

Remove protective backing and apply mod chart to circuit card.

9. Use permanent ink and mark SB 508 on the mod chart.

10. Refer to the assembly instructions in the maintenance section of the

referenced component maintenance manual with illustrated parts list to

reinstall the CPU I/O Programmed Circuit Card A5 into the main chassis

assembly.

(e) Video Processor Circuit Card (CPN 687-0726-004/005/006/007) modification

procedure.

1. Refer to figure 1. Locate and remove Video Processor Circuit Card A6

(CPN 687-0726-004/005/006/007).

2. Refer to figure 3. Locate, remove and discard C1.

3. Refer to figure 3. Install W1 using #30 AWG brown wire (CPN 428-0282-050)

across pads of C1.

4. Refer to figure 4. If the modification chart is not already on the Video

Processor Circuit Card A6, cut the word MOD and five squares from the

modification chart (CPN 280-3778-050). Remove protective backing and

apply modification chart to Video Processor Circuit Card A6 approximately

as shown.

5. Use permanent ink and mark SB 508.

6. Refer to the assembly instructions in the maintenance section of the

referenced component maintenance manual with illustrated parts list

to reinstall the Video Processor Circuit Card A6 into the main chassis

assembly.

(f) Refer to figure 5. If the mod chart is not already on the main chassis assembly,

cut the word MOD and ten squares from modification chart (CPN 280-3778-050).

Remove protective backing and apply mod chart as shown.

(g) Use permanent ink and mark SB 508 on the mod chart on the main chassis

assembly.

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Service Bulletin

(h) Transmitter Assembly (CPN 653-2255-0XX) modification process.

1. Inspect Transmitter assembly REV letter.

a. If transmitter assembly is REV N or earlier, proceed to step 3.A.(2)(h)2.

b. If transmitter assembly is REV P through REV AG, proceed to step

3.A.(2)(h)4.

c. If transmitter assembly is REV AH or later, proceed to step 3.A.(2)(i).

2. Refer to figure 6. Locate, remove and discard connectors J11 and J12.

3. Install new connectors (CPN 859-6700-010) in same location.

4. Refer to figure 6. Locate and remove Modulator Circuit Card Assembly

cover.

5. Install new Modulator Circuit Card Assembly cover (CPN 653-1328-002)

in same location.

6. Refer to figure 6. Install new synthesizer shield (CPN 653-2283-002).

NOTE: The synthesizer shield is not a replacement and will be placed

over the existing shield.

7. Refer to figure 7. If the mod chart is not already on the Transmitter

Assembly (CPN 653-2255-0XX), cut the word MOD and five squares from

the modification chart (CPN 280-3778-050). Remove protective backing

and apply mod chart to transmitter assembly approximately as shown.

8. Use permanent ink and mark SB 508.

(i) Refer to the assembly instructions in the maintenance section of the referenced

component maintenance manual with illustrated parts list to reassemble the unit.

(j) Proceed to step 3.B

(3) Modification process for CPN 622-9210-008/308/309 and CPN 622-9352-008/308/309.

(a) Refer to the Disassembly instructions in the Disassembly section of the

referenced component maintenance manual with illustrated parts list.

Disassemble the unit as required to remove the Main Chassis Assembly

(CPN-653-2254-XXX).

(b) (CPU I/O Programmed Circuit Card A5 (CPN 653-3674-015/016/021/022/

023/024) programming procedure.

1. Install Boardsite Profile (CPN 613-6608-112) into the Boardsite working

directory using the import command from the FILE menu option. Do not

copy the files within DOS, as this will erase the catalog in the working

Sep 16/09 TDR-94( )-34-508

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Service Bulletin

directory. Specify the drive and directory where the profile exists (either

floppy drive or directory other than the working directory). IMPORT the

board profile CPN 613-6608-112.

2. Install the Program Data (Page 0: CPN 829-8884-112, Page 1:

CPN 832-3615-112, Page 2: CPN 815-7871-112) into the Boardsite working

directory using the TRANSLATE command from the COMMUNICATIONS

menu option. Follow the steps below to translate and combine the three

Program Data files into one Boardsite programming file.

a. Select COMMUNICATIONS from menu.

b. Select TRANSLATE from menu.

c. Select ASCII for conversion from ASCII to Boardsite.

d. Enter location and data file name for Page 0 DOS ASCII FILE

SOURCE.

e. Enter Boardsite name: 831-6270-112.

f. Enter 200 for offset.

g. Enter RETURN for offset hi.

h. Enter 200 for begin address.

i. Enter 2FE00 for block size.

j. Select INTEL MCS-86 HEX OBJ for the I/O format.

k. Enter FF for fill byte.

l. Press ALT-B to begin.

m. After translation of Page 0 is complete, press any key to return to the

translate menu.

n. Select ASCII for conversion from ASCII to Boardsite.

o. Enter location and data file name of Page 1 DOS ASCII FILE SOURCE.

p. Enter Boardsite name: 831-6270-112.

q. Enter 200 for offset.

r. Enter RETURN for offset hi.

s. Enter 10200 for begin address.

t. Enter FE00 for block size.

u. Select INTEL MCS-86 HEX OBJ for the I/O format.

v. Enter FF for fill byte.

w. Press ALT-B to begin.

x. Press “Y” to merge this file with the previous file.

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Service Bulletin

y. After translation of Page 1 is complete, press any key to return to the

translate menu.

z. Select ASCII for conversion from ASCII to Boardsite.

aa. Enter location and data file name of Page 2 DOS ASCII FILE SOURCE.

ab. Enter Boardsite name: 831-6270-112.

ac. Enter 200 for offset.

ad. Enter RETURN for offset hi.

ae. Enter 20200 for begin address.

af. Enter FE00 for block size.

ag. Select INTEL MCS-86 HEX OBJ for the I/O format.

ah. Enter FF for fill byte.

ai. Press ALT-B to begin.

aj. Press “Y” to merge this file with the previous file.

3. Once the Profile and Program Data have been installed in the Boardsite

working directory, the CPU I/O Programmed Circuit Card A5 may be

programmed as follows.

a. Install the CPU I/O Circuit Card on the Boardsite Interface Adapter

(CPN 685-6400-002 or equivalent).

b. Press ESC key.

c. Select the COPY command.

d. Select 613-6608-112 circuit card profile.

e. Select the DISK file source.

f. Select 831-6270-112.

g. Press ALT-B to begin.

NOTE: Programming procedure will take approximately 1 minute.

4. Ensure that the programming operation completes with no errors as

indicated on the screen. The Boardsite will return a checksum of 01C4C8C2

and a 32 bit CRC of 4FA7109A.

5. Mark a new label (CPN-280-3847-040) with CPN 831-6270-112.

6. Remove existing label from programmed assembly (CPN 831-6270-XXX)

and replace it with the label marked in step 3.A.(3)(b)5.

7. Refer to figure 2. Remove EPROM A5U13 (CPN 831-4505-003) and

replace with EPROM (CPN 831-4505-004).

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Service Bulletin

8. Refer to figure 2. If the mod chart is not already on the circuit card, cut the

word MOD and five squares from modification chart (CPN 280-3778-050).

Remove protective backing and apply mod chart to circuit card.

9. Use permanent ink and mark SB 508 on the mod chart.

10. Refer to the assembly instructions in the maintenance section of the

referenced component maintenance manual with illustrated parts list to

reinstall the CPU I/O Programmed Circuit Card A5 into the main chassis

assembly.

(c) Refer to figure 5. If the mod chart is not already on the main chassis assembly,

cut the word MOD and ten squares from modification chart (CPN 280-3778-050).

Remove protective backing and apply mod chart as shown.

(d) Use permanent ink and mark SB 508 on the mod chart on the main chassis

assembly.

(e) Refer to the assembly instructions in the maintenance section of the referenced

component maintenance manual with illustrated parts list to reassemble the unit.

(f) Proceed to step 3.B.

B. Testing Procedure

Test the unit in accordance with the test procedures in the Maintenance section of the

referenced component maintenance manual with illustrated parts list.

C. Identification Procedure

NOTE: The identification procedure must be accomplished in order for the service bulletin

to be complete.

NOTE: Refer to All Avionics SIL 05-2, titled "Clarification And Information On Usage

And Ordering Of Collins Nameplates And Modification Plates" for information on

ordering identification plates.

(1) If identification plate on unit being modified is a laser etched two piece bar-coded plate,

order new bar-coded identification plate based on the new unit part number as listed

in the following table and proceed to step 3.C.(2). Otherwise, proceed to step 3.C.(3).

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Service Bulletin

OLD UNIT CPN NEW UNIT CPN ID PLATE CPN

622-9210-007

622-9210-008

622-9210-207

622-9210-308

622-9210-309

622-9210-310 685-2613-033

622-9352-007

622-9352-008

622-9352-207

622-9352-308

622-9352-309

622-9352-310 685-2622-035

(2) Mark weight from existing identification plate onto new identification plate

(CPN 685-2613-033 or 685-2622-035). Proceed to step 3.C.(5).

(3) If identification plate on the unit being modified is a stamped one piece plate, order

new stamped identification plate based on the new unit part number as listed in the

following table. Proceed to step 3.C.(4).

OLD UNIT CPN NEW UNIT CPN ID PLATE CPN

622-9210-007

622-9210-008

622-9210-207

622-9210-308

622-9210-309

622-9210-310 685-2613-031

622-9352-007

622-9352-008

622-9352-207

622-9352-308

622-9352-309

622-9352-310 685-2622-033

(4) Mark new identification plate (CPN 685-2613-031 or 685-2622-033) with weight, serial

number, and any previously marked service bulletins from existing identification plate.

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Service Bulletin

(5) Mark new identification plate (CPN 685-2613-033/031 or 685-2622-035/033) with new

unit part number following 622 9352- or 622-9210-, as listed in the following table.

The new unit part number is identification of the installation of this service bulletin.

Do not mark out Service Bulletin 508.

OLD COLLINS

PART NUMBER

NEW COLLINS

PART NUMBER

-007/008/207/308/309 -310

(6) Remove existing identification plate from the unit and replace it with the new

identification plate marked in step 3.C.(5).

NOTE: Refer to All Avionics Service Information Letter 3-03, titled "Disposal of

Retired TSO Nameplates" for disposal of old unit identification plates.

(7) Due to the change of the part number of this unit, the customer must be notified of the

change by including the following statement, with the appropriate part numbers on

the repair work sheet.

"This unit was received with a part number of CPN 622-9352-007/008/207/308/309 for

TDR-94 or CPN 622-9210-007/008/207/308/309 for TDR-94D and has been modified

to a unit with a part number of CPN 622-9352-310 for TDR-94 or CPN 622-9210-310

for TDR-94D (refer to Service Bulletin 508). Installation of units modified in

accordance with Service Bulletin 508 may require a change to the aircraft TC/STC

data unless the new part number is already included in the data."

NOTE: Installation of SB 508 is indicated by the Top Level CPN on the nameplate. SB 508

is NOT marked on the product modification plate.

Sep 16/09 TDR-94( )-34-508

Page 18
Service Bulletin

Main Chassis Assembly (CPN 653-2254-XXX), Video Processor Circuit Card A6 and CPU I/O

Programmed Circuit Card A5 Location

Figure 1

Sep 16/09 TDR-94( )-34-508

Page 19
Service Bulletin

CPU I/O Processor Circuit Card A5 (CPN

653-3674-003/004/005/006/007/008/009/010/011/012/013/014/015/016/019/020/021/022/023/024)

Component and Modification Chart Location Diagram

Figure 2

Sep 16/09 TDR-94( )-34-508

Page 20
Service Bulletin

Video Processor Circuit Card A6 (CPN 687-0726-004/005/006/007), Partial Component Location

Diagram

Figure 3

Sep 16/09 TDR-94( )-34-508

Page 21
Service Bulletin

Video Processor Circuit Card A6 (CPN 687-0726-004/005/006/007), Modification Chart Location

Diagram

Figure 4

Sep 16/09 TDR-94( )-34-508

Page 22
Service Bulletin

Main Chassis Assembly, Modification Chart Location Diagram

Figure 5

Sep 16/09 TDR-94( )-34-508

Page 23
Service Bulletin

Transmitter Assembly Modification

Figure 6

Sep 16/09 TDR-94( )-34-508

Page 24
Service Bulletin

Transmitter Assembly, Modification Chart Location

Figure 7

Sep 16/09 TDR-94( )-34-508

Page 25
Service Bulletin

Video Processor Circuit Card A6 (CPN 687-0726-004/005/006/007), Partial Schematic Diagram

Figure 8

Sep 16/09 TDR-94( )-34-508

Page 26