Crown CTS-1200, CTS-600 Service manual

Service Manual

CTs600 Model

CTs1200 Model

Table of Contents

Section 1 ……………..Disassembly Procedure

1.1……………...Test Specifications

1.2….…………..CTs Update and Check out List

1.3……………...Assembly Drawings

1.4…….………..CTs600 120V BOM

1.5…………….. CTs600 120V Schematic 138533-3

1.6……………...CTs600 230V BOM

1.7……………...CTs600 230V Schematic 138554-3
2………………..CTs1200 120V BOM

2.1……...………CTs1200 120V Schematic 138536-6

2.2…………...…CTs1200 230V BOM

2.3……………...CTs1200 230V Schematic 138537-3

Section 1

Disassembly Procedure

DISASSEMBLY OF CTs 600 AND CTs 1200

1. Turn the amplifier so that the back panel is facing you. In these
instructions, "Right" is toward your right hand and "Left" is
toward your left hand.

2. Remove the PIP module.

3. Remove 7 cover screws.

4. Lift off the amplifier cover. Discharge the electrolytic capaci­tors. Then you should measure > 50 ohms between FB909 and
FB910, which are near the front-right side of the amplifier.

5. Remove 1 screw by the IEC connector, 1 screw on the right
panel, and 2 screws by the output barrier block.

6. Remove the shield near the IEC outlet on the right.

7. Slide the plastic push rod forward and pull it out.

8. Write down the colors and attachment points of the the wires
on the IEC connector and circuit breaker. Remove those wires
from the connectors.

9. On the outside of the rear panel, use a pliers to pinch the tabs
on the circuit breaker, and shove the breaker into the unit to
remove it.

16. The board functions correctly outside of the chassis; it does
not need to be connected to the chassis.

Re-assembly

1. Turn the amplifier so that the rear panel is facing you.

2. Put the board into the chassis front first, and push it toward the
front panel of the chassis. Lower the back of the board into the
chassis. If switches or knobs on the board rub the back panel,
push the board further forward.

3. Pull the board straight back to insert the switches into the rear­panel holes.

4. Locate the two large capacitors near the front panel toward
your right. Insert a screw into the board between the chassis and
those capacitors.

5. Replace the 11 screws in the board.

6. Replace the plastic light pipes and/or their adhesive if neces­sary. Insert the light pipes near the front panel.

7. Replace the circuit breaker into its hole in the rear panel. The
tabs will snap into place.

10. Using a screwdriver, press inward on the top and bottom tabs
of the IEC connector, and shove the connector out of the unit to
remove it.

11. Find the plastic light pipes near the front panel. Pull them
out, or just life up the back of the pipes and fold the pipes toward
the front panel. This process might lose some adhesive that was
on the pipes.

12. Remove 11 screws from the board.

13. Locate the two large capacitors near the front panel toward
your right. There is a screw on the PC board between the chassis
and those capacitors. Remove it.

14. Locate the metal bracket on your right side by those two
capacitors. Leave in place the 2 screws that hold down the
bracket. Also keep the grey fish-paper plenum in place.

15. Lift up the front of the board and push the board forward to
clear the switches from the back panel. Lift up the board from the
back.

8. Replace the IEC connector into its hole in the rear panel. The
tabs will snap into place.

9. Referring to your notes, plug the correct wires into the IEC
connector and circuit breaker.

10. Insert the plastic push rod into the front panel and put it in
place.

11. Replace the shield near the IEC outlet on your right.

12. Replace 1 screw by the IEC connector, 1 screw on the right
panel, and 2 screws by the output barrier block.

13. Make sure the PIP cables come up through the PIP’s hole in
the rear panel, then replace the amplifier cover.

14. Replace the 7 cover screws.

15. Replace the PIP module.

Page 1

Section 1.1

Test Specifications

CTs 600/1200 Production Test Specification (Preliminary)

Last edit by EB 3/26/02
Last edit by DRB 4/11/02 modified section 3, programming serial eprom
Last edit by EB 5/07/02
Last edit by EB 8/01/02 Added tolerance to 2h and 2p.
Last edit by EB 10/14/02 Added gain specifications
Last edit by EB 10/21/02 Clarified frequency response adjustment

Definitions

Minimum Specification: A specification that is 100% guaranteed to our customers, or a
specification that must be met for proper operation of the amplifier.

Typical Specification: A specification that is not 100% guaranteed to our customers, or a
specification that represents typical performance that can be expected of the amplifier.

Regulatory Specification: A specification that must be met in order to comply with
regulatory standards. Many of these involve tests that are required on 100% of units.

Notes:

1) all test specs verified on both channels unless specified otherwise

2) all loads are resistive +/-0.1% unless specified otherwise

3) all specifications assumed at 1khz sine-wave unless specified otherwise

4) gain setting is in the 26db position.

Initial Setup

1. Set Bias

2. Set JTS

a. Set and verify bias to 0.350 +/-0.02VDC.
b. This spec assumes amplifier has been powered for at least one minute

prior to adjustment at ambient temp = 23degC +/-3degC.

a. Set R313, R317, R379, R391, R413, R417, R479, R491 to mid position.
b. Apply a 3.5Vrms 10Hz signal to the amplifier inputs (26 db gain position).
c. Adjust R317 for minimum AC voltage from TP5 to TP121.
d. Remove the 10Hz signal from the amplifier input.
e. Measure the DC voltage from TP5(neg) to TP121(pos) (-10.5 to -12.5Vdc).
f. Add 20V to the measurement in step e ( around +9Vdc).
g. Place jumpers on Z102 and Z103 and note that the fans run on high speed.
h. Adjust R313 for the voltage determined on step f +/-0.25V.
i. Remove the Z102 and Z103 jumpers.
j. Apply a 3.5Vrms 10Hz signal to the amplifier inputs.
k. Adjust R391 for minimum AC voltage from TP7 to TP123.
l. Remove the 10Hz signal from the amplifier input.
m. Measure the DC voltage from TP7(neg) to TP123(pos) (+10.5 to
+12.5Vdc).
n. Subtract 20V from the measurement in step m (around -9Vdc).

o. Place jumpers on Z104 and Z105.
p. Adjust R379 for the voltage determined on step n +/-0.25V.
q. Remove the Z104 and Z105 jumpers.
r. Repeat steps b through q for CH2

3. Program PIP Serial EEPROM

Example Address

Data
0000h 43 Manufacturer Name in ASCII = ‘CROWN’
0001h 52
0002h 4F
0003h 57
0004h 4E Note: Null termination indicates end of data.
0005h 0
0006h 0
0007h 0
0008h 0
0009h 0
000Ah 31 Serial Number in ASCII
000Bh 32
000Ch 33 Example = 123456
000Dh 34
000Eh 35 Note: Null termination indicates end of data.
000Fh 36
0010h 0
0011h 0
0012h 0
0013h 0
0014h 30 Date Code in ASCII
0015h 31
0016h 30 Example = 0102
0017h 32
0018h 43 Model Name in ASCII
0019h 54
001Ah 73 CTs 600 = 'CTs 600', CTs 1200 = ‘CTs 1200’
001Bh 20 Example = CTs 1200
001Ch 31
001Dh 32 Note: Null termination indicates end of data.
001Eh 30
001Fh 30
0020h 0
0021h 0
0022h 6E AO1 Scaling Coefficient
0023h 0 CTs600/1200=110 ($6E), CTs2000/3000=165 ($A5)
0024h 0 Example = 110
0025h 0

Description

0026h 6E AO2 Scaling Coefficient
0027h 0 CTs600/1200=110 ($6E), CTs2000/3000=165 ($A5)
0028h 0 Example = 110
0029h 0
002Ah 50 PIP Interface Revision Level = ‘PIP2B’
002Bh 49
002Ch 50
002Dh 32
002Eh 42
002Fh 0
0030h 0
0031h 0
0032h 0
0033h 0
0034h 0
0036h XX

: : :
: : :
007Fh XX
0080h 78 AC Line Voltage = 120 ($78), 230 ($E6)

0081h XX
: : :
: : :
00FFh XX

Not Assigned, Available to PIP. Do not program.

Example = 120
Reserved for future use. Do not program.

Performance and Operation Verification:

1. DC offset
a. Verify less than 2mvDC.

2. Residual Noise
a. Verify less than 150uVrms 20-20kHz + A-wgt or,
b. Verify less than 350uVrms A-wgt or,
c. Verify less than 500uVrms 20-20kHz.

3. Common Mode Rejection
a. Verify better than 50dB at 60Hz.
b. Assumes 20-20kHz measurement bandwidth limit

4. Frequency Response
a. Apply 1Khz 1V signal to the amplifier input as a reference.
b. Adjust R181,281 at 20kHz to be -.2dB (+/-0.1dB) from the 1kHz

reference.

c. Verify overall system frequency response is within +/-0.25dB of 1kHz

reference over 20-20kHz.

5. SMPTE IMD
a. Verify 0 and –30db IMD<0.05%

6. Bench Power + Distortion:
a. CTs 1200:

i. Verify less than 0.10% THD+N with 71.6Vrms at 1kHz sine into

8ohms. This spec is yields 640 watts which is 1.05 times the
published power spec.

ii. Verify less than 0.05% THD+N with 50.6Vrms at 20Hz sine into

4ohms. This spec yields 640watts which is 1.05 times the
published power spec.

iii. Verify less than 0.50% THD+N with 54.2Vrms at 20kHz sine into

4ohms. This spec yields 735watts which is 1.05 times the
published spec.

b. CTs 600:

i. Verify less than 0.10% THD+N with 71.6Vrms at 1kHz sine into

16ohms. This gives 320watts which is 1.05 times the published
spec.

ii. Verify less than 0.05% THD+N with 35.5Vrms at 20Hz sine into

4ohms. This gives 315watts which is 1.05 times the published
spec.

iii. Verify less than 0.50% THD+N with 38.4Vrms at 20kHz sine into

4ohms. This gives 367watts which is 1.05 times the published
spec.

7. Cooling Fans:
a. Verify fans off at 40C
b. Verify fans on at 60C
c. Verify audible fan noise less than 70db a weighted @ 1 meter

8. Protection and Abnormal Load Durability
a. Peak Current Limit

i. Verify the peak amplifier output current is 16Apk < Iout < 18Apk

using 1khz sine burst into 1ohm or less resistive load.

b. Cap Load

i. Verify the amplifier output signal is stable with no visible

oscillations or protection cycling for up to 10seconds when driving
30Vrms at 20kHz sine-wave into load made of R= 8ohm in parallel
with 2.0< Cap <2.2uF.

c. Inductive Load

i. Verify the amplifier protects itself for sine-wave output at

70Vrms/1kHz driven into load of R = 8ohm in parallel with 159uH
< L < 169uH.

ii. Typical visible waveform:

d. Short Load

i. Verify the amplifier survives a condition for sine-wave output at

9. Front Panel LED’s:
a. Verify Ready LED on when amp is on, off when in stby
b. Verify Signal LED off with any input signal below 2 milli-V rms and on

with any input signal greater than 5 milli-Vrms.

c. Verify –20dB LED off for any amplifier output voltage below 10 volts and

on for any amplifier output voltage greater than 12volts.
d. Verify –10dB LED on when 30, off when 33Vrms
e. Verify Clip LED on when input signal =5Vrms and off when input

signal=1Vrms
f. Verify Thermal LED on when 40Vrms into 2 Ohms (after 10 Sec) and off

when Vout= 0
g. Verify Fault LED on when ?? and off when ??
h. Verify Bridge LED on when dual/bridge switch in bridge mode and off

when in dual mode.
i. Verify Power LED on when rated line applied and power switch on.

Verify Power LED flashing at approx 1 flash/second when power switch =

on and applied AC mains less than 85% of rated.
j. Verify Data LED on when PIP Data input toggled high and off when PIP

Data input toggled low.

10. Quiescent Power Draw
a. Verify less than 25 watts when amp is on and in standby.
b. Verify less than 40 watts when amp is on and ready.

11. High Pass Filters:
a. Verify frequency response within 0.25dB of flat curve.
b. Verify frequency response within 0.25dB of 35Hz curve when HPF switch

set to 35Hz.

c. Verify frequency response within 0.25dB of 70Hz curve when HPF

switch set to 70Hz.

d. A minimum of two points on each curve should be verified.

12. Input Sensitivity:
a. Verify amplifier voltage gain from balanced input to output is 26 +/-

0.5dB when sensitivity switch set to 26dB mode.

b. Verify amplifier voltage gain 31 +/-0.5dB for CTs600 and 34 +/-0.5dB for

the CTs1200 when sensitivity switch set to 01.4V for 4/8ohm mode mode.

c. Verify amplifier voltage gain 34 +/-0.5dB when sensitivity switch set to

1.4V for 70V mode for both CTs600 and CTs1200.

d. Measured from balanced input to amp output terminals.

10Vrms/1kHz driven into load of R = 10milli-ohm.

13. Dual/Bridge Switch
a. Verify CH2 input disabled when in Bridge mode.
b. Verify CH1 input drives CH1 in phase and Ch2 180degrees out of phase

when in Bridge mode.

c. Verify Front Panel Bridge LED on when in Bridge mode and off when in

Dual mode.

14. Input Attenuators
a. Verify at least two points within 1.0dB of attenuation curve for each input

attenuator pot.

-5

-10

BCA POT ATTENUATION (0-30db)

0

Fig.4. Typical attenuation as a function of clicks.

15. PIP interface
a. Verify amp ready when RS signals set to high (>4.2VDC) and amp in

b. Verify SPCS, SPDO, SPDI, SPCLK signals operate correctly by

c. Verify “+24V” = 24VDC +/-0.5VDC when amp powered by nominal AC

d. Verify “-24V” = -24VDC +/-0.5VDC when amp powered by nominal AC

-15

-20

-25

-30

POSITION (clicks)

standby when RS signals low (<0.8VDC).

programming and verifying the amplifier serial eeprom contents.

line.

line.

Ch-1

dBr

-14-12-10-8-6-4-20

Ch-2

e. Verify AO1 and AO2 signals scaling at two or more operating points
f. Verify IS1 and IS2 signal scaling at two or more operating points
g. Verify TDH1 and TDH2 signals scaling at two or more operating points
h. Verify ES1 and ES2 are +15V +/-0.5V logic high when amp is normal and

0V +/-0.5V when amp is clipping.
i. Verify DATA signal connection by driving amplifier front panel LED.
j. Verify BGS1, BGS2 signal outputs…?
k. Verify LVM signal output…?
l. Verify VOUT1, VOUT2 signal outputs…?
m. Verify FLT signal outputs…?
n.

16. Sleep Mode Operation
a. Verify the amp enters sleep mode when driven with sine-wave input signal

less than –70dBV.

b. Verify the amp exits sleep mode when driven with sine-wave input signal

greater than –60dBV.

17. Compressor Operation
a. Verify the compressor actively reduces gain with less than 5% THD+N for

any input signal over 5Vrms.

b. Verify the compressor actively reduces gain with less than 5% THD+N

when the amp is driven with enough input level to otherwise clip the
output stage by more than 3dB but less than 6dB.

18. Slew Rate
a. Verify the large signal amplifier output slew rate is > 14V/uS as measured

from 20% to 80% of peak output voltage using a 10kHz or equivalent
square wave into an 8ohm load.

19. Cross talk
a. Verify cross talk less than –60dB with pink noise or any sine frequency up

to 10kHz while driving 4-8ohm load 12dB below midband frequency into
4-8ohms.

20. High/Low Line Operation

a. Verify amp operates within range of +10 to –25% of nominal line

21. Safety Ground
a. Verify the resistance between amplifier chassis and ground connection of

power cord (or IEC inlet if no cord) is intact and measures 0.1ohm or less.

b. This test must be performed on every amplifier before shipment per

UL6500, Annex N, or factory audit file.

22. Hi-Pot
a. Verify the amplifier dielectric for rated mains voltage as shown in table.

Rated Mains Voltage Applied Voltage (1sec)
<150Vrms 2120VAC
>150Vrms 2120VDC

b. Voltage is applied to power cord terminals, between safety ground and

line/neutral where line and neutral are connected together for test.
c. Applied voltage must be in accordance with UL6500.
d. During the test, the amplifier power switch must remain in the “ON”

position.

Shipping State

1. The amplifier shall be verified in the following state for pack and shipment.
a. Back panel pots full cw
b. Filter switches = flat
c. Input sensitivity = 1.4 for 8/4ohms
d. Breaker = normal
e. Sleep mode jumpers = enable sleep mode
f. PIP-BBY installed
g. Bridge-mono switch = dual
h. Power Switch = off

Published Specifications

1. Noise
a. –104dB 20-20kHz
b. –106dB A-wgt
c. –110dB 20-20kHz + A-wgt

2. Frequency Response
a. +/-0.25dB 20-20kHz

3. Cross talk
a. Below 80dB from 20Hz to 1kHz
b. Below 60dB from 1kHz to 20kHz

4. Damping Factor
a. Greater than 1000 at 100Hz.
b. Greater than 500 from 20-400Hz.

5. Quiescent Power Draw
a. Less than 40W (Standby)
b. Less than 80W (Ready)

6. DC Offset
a. Less than 10mV

7. CMR
a. Better than 50dB at 60Hz

8. SMPTE Intermodulation Distortion:
a. Less than 0.5% from 30dB below rated power up to rated power into

9. Power + Distortion (THD+N)

8ohm load.

a. Highlighted specs verified in production spec

CTs 1200

8ohm

20-20k 600

4ohm

20-20k

DUAL

2ohm

20-20k

20-20k 600

100V

20-20k

8 ohm

20-20k 1200

4 ohm

20-20k

BRIDGE

140V

20-20k 1200

200V

20-20k

0.05% 0.10% 0.35% 1%

1k

1k 600

1k 250

70V

1k

1k

1k 1000

1k 500

1k 1200

1k

600

600

NR
NR

NR
NR

CTs 600

8ohm

20-20k

4ohm

20-20k

DUAL

2ohm

20-20k 150

20-20k NR

100V

20-20k

8 ohm

20-20k

4 ohm

20-20k 300

BRIDGE

140V

20-20k

200V

20-20k

0.05% 0.10% 0.35% 1%

300

1k

1k

1k 150

70V

1k NR

1k

1k

1k 300

1k

1k

300

300

600

600

300

NR
NR

600

600

NR
NR

Typical Power Specs:

CTs 1200

8ohm

20-20k

4ohm

20-20k

DUAL

2ohm

20-20k

20-20k

100V

20-20k

8 ohm

20-20k

4 ohm

20-20k

BRIDGE

140V

20-20k

200V

20-20k

0.05% 0.10% 0.35% 1%

1k

1k

1k

70V

1k

1k

1k

1k

1k

1k

BRIDGE

10. High Pass Filters

11. Compliance
a. Safety Standards

CTs 600

8ohm

20-20k

4ohm

20-20k

DUAL

2ohm

20-20k

20-20k

100V

20-20k

8 ohm

20-20k

4 ohm

20-20k

140V

20-20k

200V

20-20k

0.05% 0.10% 0.35% 1%

1k

1k

1k

70V

1k

1k

1k

1k

1k

1k

1.

i. EN 60065: 1998 Safety Requirements – Audio Video and Similar

Electronic Apparatus
b. Electromagnetic Compatibility Standards
c. Emissions

i. EN 55103-1:1995 Electromagnetic Compatibility – Product

Family Standard for Audio, Video, Audio-Visual and

Entertainment Lighting Control Apparatus for Professional Use,

Part 1: Emissions

ii. EN 55103-1:1995 Magnetic Field Emissions-Annex A @ 10 cm

and 1 M

iii. EN 61000-3-2:1995 Limits for Harmonic Current Emissions

(equipment input current ≤ 16 A per phase)

iv. EN 61000-3-3:1995 Limitation of Voltage Fluctuations and

Flicker in Low-Voltage Supply Systems Rated Current ≤16A

v. EN 55022:1992 + A1: 1995 & A2:1997 Limits and Methods of

Measurement of Radio Disturbance Characteristics of ITE:

Radiated, Class B Limits; Conducted, Class A
d. Immunity

i. EN 55103-2:1996 Electromagnetic Compatibility – Product

Family Standard for Audio, Video, Audio-Visual and

Entertainment Lighting Control Apparatus for Professional Use,

Part 2: Immunity

ii. EN 61000-4-2:1995 Electrostatic Discharge Immunity

(Environment E2-Criteria B, 4k V Contact, 8k V Air Discharge)

iii. EN 61000-4-3:1996 Radiated, Radio-Frequency, Electromagnetic

Immunity (Environment E2, criteria A)

iv. EN 61000-4-4:1995 Electrical Fast Transient/Burst Immunity

(Criteria B)

v. EN 61000-4-5:1995 Surge Immunity (Criteria B)

vi. EN 61000-4-6:1996 Immunity to Conducted Disturbances

Induced by Radio-Frequency Fields (Criteria A)

vii. EN 61000-4-11:1994 Voltage Dips, Short Interruptions and

Voltage Variation

Section 1.2

CTs Update and Check out List

CTS Update and
Checkout List

Crown Technical Support

PO Box 1000 Elkhart IN 46515
Ph 800-342-6939/574-294-8200
Fax [phone]

Page 1 of 2

** Items in Bold print should always be performed.**

CTS600 and 1200 Models

1. Replace old fish paper plenum and standoffs with new foam plenum

- On units from about the first six months on production

- Foam plenum 136229-1

2. Tech Note 173 Turn of

-

2002 neighborhood, check tech note.

3. Tech Note 175 Nuisance

- Prior to date code 0103.

4. Replace old steel shield at power inlet with part with transformer “support”

- On units prior to about January 2003

- Add foam 139853-1 on top of transformer T901 when changing shield

- HS/EMI shield 135026-4

5. Add RC network to channel 2

- Approximately 5 versions

- Add R496 A11371-5R65 5.6 OHM 1W 5% 2512 T/
MET POLY T/A

6. Replace short older shadow boxes and light pipes.

- On units prior to about March 2004

- 133212-4 Shadowbox, 133222-2 Light Pipes x 2, 134400-1 Gaskets.

- 133213-4 Shadowbox, 133223-2 Light Pipes, 134401-1 Gaskets.

7. Tech Note 176 Soft Start Inrush Current

-

Prior to date code 0094

8. Tech Note 179 Last Voltage Am

- Prior to date code 0055

- Engineering will supply photo or sample of board tha

scrap board if discoloration is severe.

- Addendum, perform changes to channel 1 as well

- Replace Q111, Q119, Q26, Q27, Q29, Q29

9. Replace older Mechatronics fans with blue and red wires only

- On units prior to about March 2005

- Replacement fan has same part number 133978-1

f pop with IQPIPUSP2 or USP2CN cards installed

tripping of the fault circuit

of older b

plifier (LVA) circuit

oards.

R, and C253 A10434-473JD .047UF 250VDC 5%

t is too discol

ored to be acceptable,

CTS Update and
Checkout List

Crown Technical Support

PO Box 1000 Elkhart IN 46515
Ph 800-342-6939/574-294-8200
Fax [phone]

Page 2 of 2

** Items in Bold print should always be performed.**

10. Pico Flex cables (Both BJT and BCA versions)

- 6/XX/04 to 12/XX/06

- Replace “J2A” cable with 139900-1, replace “J2B” cable with 139899-1

-

A “good” cable has a bead of glue on both ends of the cable top and bottom

11. Replace C36 and C39 with more reliable part

- All units to date.

- 139705-1 CAP, 0.33UF 50V 5% X7R 1206

13. Remove R565 the MOV

- Affects units prior to about June 2006

14. Replace loose hot melt glue, track down loose pieces and discard

- Remove loose hot melt between caps and add hot melt from

CTS2000 and 3000 Models

1. Tech Note 177 So

- Prior to date code 0094

2. Replace C527, C527X on base PWA 134579-8, 135019-7 [

- Affects units prior to about July 2006, (the old C527

smaller part on later revisions)

- Replace with 139705-1 CAP, 0.33UF 50V 5% X7R 1206

3. Remove R904 the MOV

- On units prior to about September 2006

-

4. Torque amplifier to output board assembly

- All units to date

- Use “screw depth gauge” to determine if disassembly for step this is needed

- Engineering will design the depth gauge

5. Pico Flex cables (Both BJT and BCA versions)

- 6/XX/04 to 12/XX/06

- Replace “J2A” cable with 139900-1, replace “J2B” cable with 139899-1

6. Replace loose hot melt glue, track down loose pieces and discard

- A “good” cable has a bead of glue on both ends of the cable top and bottom

- Remove loose hot melt between caps and add hot melt from the tops of capacitors as per

current procedure.

ft start inrush current

front end card
, C527X was a 1210 size part, the part was changed to a

s on solderable washers if needed

screw

the tops of capacitors as per current procedur

] with more reliable part

e.

Section 1.3

CTs Assembly Drawings

Section 1.4

CTs600 120V BOM (Bill of Materials)

138533-3 REV. B PWA, CTS600 120V 600008

REVISION HISTORY

E.C.N REV DATE DWN PE CM

INITIAL RELEASE DERIVED FROM 138533-3 REV. 2

A 06/07/07 JFL BP DSV

DESCRIPTION

C938 WAS ROTATED TO 90°

34706 B U100 & U200 WERE 139618-1 (PREPPED PART) 07/16/07 JFL BWP DSV

UNLESS OTHERWISE SPECIFIED, THIS PRINTED WIRING ASSEMBLY SHALL MEET
THE SPECIFICATION DESCRIBED IN IPC-A-610_ CLASS 2 STANDARDS.

ROHS COMPLIANCE: THIS PART MUST COMPLY WITH CROWN AUDIO SPECIFICATION 138935
AND ROHS DIRECTIVE 2002/95/EC OR BE DEFINED AS A ROHS APPROVED EXCEPTION.

NOTES:

1. PRINTED WIRING BOARD PART NUMBER 138530-3

2. SEE 138533-3_B.TIF FOR SCHEMATIC AND COMPONENT MAP.

3. ALL LEADS SHALL BE TRIMMED TO 0.125" OR LESS.

4. POSITION COMPONENTS AS SHOWN ON COMPONENT MAP.

5. INSTALL CAPTIVE NUTS (A10019-16) TO BOTTOM OF PRINTED WIRING BOARD.

6. COAT BOTTOM SIDE OF ALUMINUM HEATSINK WITH OXIDE INHIBITOR S 6442-8 IN 3 PLACES
(SEE COMPONENT MAP).

7. INSTALL SILPAD (132565-2) OVER TO220 DEVICES PRIOR TO INSTALLING HEATSINK (132644-4)
SEE COMPONENT MAP.

8. APPLY KAPTON TAPE (135520-2) TO BOTTOM OF HEATSINK (132644-4) PRIOR TO INSTALLING
HEATSINK. SEE COMPONENT MAP FOR LOCATIONS.

9. COVER TOP SURFACE OF RT101, RT102, RT201, AND RT202 WITH HEATSINK COMPOUND (S 2162-6)
PRIOR TO INSTALLING HEATSINK (132644-4).

10. APPLY TAPE 135894-1 TO EMI SHIELD 133415-3 SEE COMPONENT MAP FOR LOCATIONS.

11. MOVE R947 OR PREVENT R947 FROM TOUCHING HEATSINK.

12. APPLY TORQUE SEAL (101036-1) TO ALL POTS AFTER FINAL ADJUSTMENT.

13. ALL GRADED POWER TRANSISTORS (102659-1) ON A HEATSINK MUST BE OF THE SAME GRADE.

ECR PENDING

UNLESS OTHERWISE MARKED IN RED INK BY CM AS A CONTROLLED COP Y, COPIES OF THESE DOCUME NTS
INCLUDING ASSOCIATED ELECTRONIC REPRODUCTIONS ARE FOR REFERENCE ONLY

THESE DRAW INGS AND SPECIFICATIONS ARE THE PROPERTY OF CROWN INTERNATIONAL, INC. AND SHALL NOT BE
REPRODUCED, COPIED, OR USED AS THE BASIS FOR THE MANUFACTURE OR SALE OF APPARATU S OR DEV ICES
WITHOUT PERMISSION.

UNCONTROLLED

DWN JFL 06/07/07 PE BP 06/07/07 CM DSV 06/08/07 DIST. K

138533-3_B.xls

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138533-3 REV. B PWA, CTS600 120V 600008

REF. DES. CPN DESCRIPTION MAP LOC.

C1 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R H 11
C2 C10208-4 100.UF 25V 20% RAD ELECT T/R K 10
C3 C10208-4 100.UF 25V 20% RAD ELECT T/R N 13
C4 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R B 1
C5 A11427-224J5 0.22UF 50V 5% X7R 1206 T/R C 2
C6 103418-103J2 .01UF 5% 100V X7R 0805 N 12
C7 103418-103J2 .01UF 5% 100V X7R 0805 C 12
C8 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R H 11
C9 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R G 11
C10 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R B 2
C11 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R C 2
C12 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R N 12
C13 C 9465-3 10UF 50V 20% VERT ELECT T/A B 2
C14 C 9465-3 10UF 50V 20% VERT ELECT T/A B 2
C15 C 9465-3 10UF 50V 20% VERT ELECT T/A P 2
C16 C 9465-3 10UF 50V 20% VERT ELECT T/A P 3
C17 A11427-224J5 0.22UF 50V 5% X7R 1206 T/R I 9
C18 A11427-224J5 0.22UF 50V 5% X7R 1206 T/R G 9
C19 A11369-101J2 100 PF 50V 5% NPO MLC 0805 T/R E 10
C20 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 10
C21 A11369-101J2 100 PF 50V 5% NPO MLC 0805 T/R E 10
C22 A11369-332F5 3300.PF 50V 1% NPO MLC 1206 F 11
C23 A11369-102J2 .001UF 50V 5% NPO MLC 0805 T/R F 11
C24 103418-103J2 .01UF 5% 100V X7R 0805 F 11
C25 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R E 11
C26 A11369-102J2 .001UF 50V 5% NPO MLC 0805 T/R F 10
C27 103418-103J2 .01UF 5% 100V X7R 0805 F 11
C28 A11369-102F2 1000PF 50V 1% CHIP CAP F 11
C29 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 11
C30 OPEN F 11
C31 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 11
C32 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 11
C33 A11369-101J2 100 PF 50V 5% NPO MLC 0805 T/R E 11
C34 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 10
C35 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R E 11
C36 139705-1 CAP, 0.33UF 50V 5% X7R 1206 G 10
C37 C 5362-6 2.2UF 50V VERT ELECT T/A F 12
C38 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 12
C39 139705-1 CAP, 0.33UF 50V 5% X7R 1206 M 11
C40 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R M 11
C41 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R M 11
C42 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R O 1
C43 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R N 1
C44 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 1
C45 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R F 1
C46 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R D 2
C47 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R E 2
C48 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R P 2
C49 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R Q 2
C50 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R K 2
C51 A11427-104K2 .1UF 50V CHIP CAP 10% 0805 X7R K 2
C52 A11369-330J2 33 PF 50V 5% NPO MLC 0805 B 8
C53 A11369-330J2 33 PF 50V 5% NPO MLC 0805 B 9
C54 A11369-102J2 .001UF 50V 5% NPO MLC 0805 T/R M 12
C55 103418-103J2 .01UF 5% 100V X7R 0805 E 11
C56 A11369-5R6D2 5.6PF 50V +/-.5PF NPO MLC 0805 F 10

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