DD66000 - JBL Audio Service Manual (repair manual). Page 3

Harman Consumer Group, Inc., 250 Crossways Park Drive, Woodbury, New York 11797

8/07

Grn/Blk

GRN/WHT

Grn

+

R3

120 ohm

5w

Circuit Board

L2

10mH

R1

5.1 ohm

5w

Red

Blk

LF1

L1

10mH

C2

3.9µF

250V

C1

47µF
100V

R2

62 ohm

5w

Circuit Board

+

9V

R1

62 ohm

5w

R2

120
ohm

5w

Wht

WHT/BLK

Wht/Blk

9V

LF2

Red

Blk

9V

C1

82µF
100V

C5

27µF
100V

C6

3µF

250V

C2

3.0µF

250V

C4

3.0µF

250V

C3

82µF
100V

C7

27µF
100V

C8

3µF

350V

L1

4.2mH

L2

2.4mH

R101

2.2 megaohm

0.25w

R102

2.2 megaohm

0.25w

Gray

Blk

C8

5.1µf
250V

C7

75µf

100V

Yel/Blk

Yel

C9

6.2µf
250V

C10

6.2µf
250V

C11

2.7µf
250V

C12

2.7µf
250V

L3

0.26mH

L4

2mH

L5

2mH

R9

5.1 ohm

5w

R10

3.9 ohm

5w

R105

R104

R103

L6

0.5mH

R8

3 ohm

5w

3

2

1

Blk

Blk

R1

R5

R6

56 ohm

5w

C4

0.47µf

250V

C3

0.47µf

250V

R2

L1

2mH

R101
2.2 megaohm
0.25w

9V

9V

9V

R102
2.2 megaohm
0.25w

C2

47µf

250V

C1

47µf

250V

L2

0.3mH

R4

R7

3 ohms

5w

9V

9V

9V

C5

75µf

100V

C6

5.1µf
250V

S1
HF

Level

Red

Red

Wht

Yel

9V

2.2 megaohm

0.25w

2.2 megaohm

0.25w

2.2 megaohm

0.25w

130 ohm

5w

39 ohm/5w

39 ohm/5w

R3

39 ohm/5w

39 ohm/5w

+

Orn

R1

0.47 ohm

1w

C2

2µF

250V

C3

2.7µF

250V

C4

2.7µF

250V

C1

2µF

250V

F.110
.5mm

Orn/Blk

+

9V

L2
0.1mH

R2
5.1 ohm
0.5w

C5
0.56µF
100V

R101

2.2 megaohm

0.25w 9V

L1
0.025mH

Red

9V

Blk

R102

2.2 megaohm

0.25w

F.205
.5mm

Shorting straps, 9 volt batteries:
Remove the front grille; Grille removal is described in the owner’s manual.
All controls, and replacement of the 9 volt batteries, are under the
cover at the center bottom of the front baffle.

All crossover networks (four) are inside the cabinet at various locations
(see exploded view) but none are physically attached or accessed
through the terminal cup at the rear.  Woofer removal is necessary.

If terminal cup/port tube ass’y at the rear needs service, the (14)
machine screws all have at nut on the end, inside the cabinet, so at
least one woofer removal is necessary to hold the nuts and prevent
each screw from spinning.

Replacement or service of the UHF driver is accomplished by simply
pushing the UHF housing (port) #25 up vertically with your thumbs, as
it’s held in place with a pin/cup arrangement.  All UHF driver compo-
nents will then be exposed.

Replacement or service of the LF driver requires access through the
woofer opening, following these steps.

NOTE: IT IS RECOMMENDED TWO PERSONS BE INVOLVED IN
DD66000 DISASSEMBLY

1. Lay the loudspeaker down, on its back (drivers facing up), on a

padded surface.

2. Remove the grille; Grille removal is described in the owner’s manual.

3. Remove the (8) Phillips woofer screws holding each woofer; remove

the trim rings.

4. The woofer is best extracted by inserting two 1/4 x 20 (3” or longer)

threaded machine screws into opposite sides of the woofer screw

openings.  Thread the bolts into the woofer openings by hand, then
pull upwards, lifting the woofer from the counterbore.  Then while
one person supports the woofer, another can remove both con-
necting wires from the terminals.  Set the woofer(s) aside; do not
set it on the front baffle as it may damage the leather cover.

5. The HF driver can now be removed from the cabinet: it is attached

to mounting plate #23 (shown upside-down in the exploded view)
and can be removed by loosening, not removing the (2) wing nuts
#37 (knobs) and dislodging the slotted plate & driver from its posi-
tion.  Then the HF driver can be unbolted from the plate and the
wires removed.

Should the leather cover on the front baffle ever need to be replaced,
after woofer removal the front baffle can be extracted by the removal
of (8) hex bolts at the rear of the baffle; these are not shown in the
exploded view.  Work the front baffle out of the cabinet.  The leather
cover is glued and stapled to the front baffle.  The leather cover is not
available from JBL as a separate part, and a suitable upholstery shop
will need to remove and re-cover the front baffle with a material of
your choice.  The leather is described as 0.050” Waterproof Leather
Hide, color Black for all finishes except the white version of the
DD66000, and that leather color is Cashmere.

NOTES UPON REASSEMBLY

• Remember to observe correct polarity when reattaching all driver wires.

• Any cable ties that have been cut will need to be replaced

• One woofer screw, on each woofer, on the extreme right/left sides of

the woofer hole is slightly shorter than the others; assure this screw
is replaced only into its proper hole (#39 in exploded view)