Harman Kardon PM655 - System Wiring Diagram

DISASSEMBLY PROCEDURES (REFER TO PAGES 4 AND 12)
U1
2
1.
2.
(3)
1.
2.
3.
4.
5.
4
1.
2.
3.
CABINET TOP (132) REMOVAL
Remove 8 screws @ and remove the Cabinet Top (132).
FRONT PANEL ASSEMBLY (101) REMOVAL
Remove the Cabinet Top (132). (Refer to step [1] .)
Remove 5 screws @ and remove the Front Panel
Assembly (101).
MAIN P.C. BOARD (PCB-1) REMOVAL
Remove
10
screws
@
and
remove
the
Cabinet
Bottom
(133).
Remove the Front Panel Assembly (101). (Refer to
step (2] .)
Loosen 2 screws ® and pull out the Shaft (196)
with the Speaker Selector Knob Assembly (102).
Remove 24 screws @ and fastener @ , then remove
the Cabinet Back (134). If necessary, unsolder the
lead wires from the Power Transformer (T1).
Remove 7 screws @ and remove the Main P.C. Board
(PCB-1) with Heat Sink (180). At this time, unsolder
the lead wires connected to the Main P.C. Board
(PCB-1).
POWER SUPPLY P.C. BOARD (PCB-5) REMOVAL
Remove
the
Front
Panel
Assembly
(101).
(Refer
to
step [2] .)
Pull
out
the
Power
Push
Button
(143)
and
Levers
(192).
Remove
3
screws
@®
and
remove
the
Power
Supply
P.C.
Board
(PCB-5).
If
necessary,
unsolder
the
lead
wires.
POWER CORD REPLACEMENT
(FOR
SERVICE
ENGINEERS
OTHER
THAN
NORTH
AMERICA)
in
order
to
prevent
fire
or
shock
hazard
when
replacing
the
power
cord,
follow
the
procedure
below
to
replace
the
parts
with
the
standard
supply
parts.
P41
POWER CORD
CABINET BACK
sw2
BUSHING
HOLDER
5
VOLTAGE
SELECTOR
BROWN LEAD
TONE CONTROL AND PUSH SWITCHES P.C.
BOARDS (PCB-2 and PCB-3) REMOVAL
1. Remove the Front Panel Assembly (101). (Refer to
step [2] .)
.
Pull
out
the
Shaft
(196)
with
the
Speaker
Selector
Knob Assembly (102). (Refer to step [3] -3.)
.
Pull
out
the
7
Knob
Assemblies
(102
and
103),
Cap.
Trim Knob (148), Power Push Button (143) and
Levers (192).
. Remove hexagon nut @ and remove the Capacitance
Trim P.C. Board (PCB-6).
. Remove screw @ , 2 fasteners @ and @ , 2 screws
® and screw @ mounting the Bracket (165), then
remove the Bracket (165) with the Phono Equalizer
P.C. Board (PCB-4).
. Straighten the catches fixing the Power Indicator P.C.
Board (PCB-9) and remove the Power Indicator P.C.
Board (PCB-9).
- Remove the metal fixture @ fixing the Headphones
P.C. Board (PCB-11) and remove the Headphones
P.C. Board (PCB-11).
. Remove 7 hexagon nuts @ and remove 4 screws @ .
. Remove 6 screws @® and the Chassis (161), then the
Tone Control P.C. Board (PCB-2), Push Switches P.C.
Board (PCB-3) and Volume Control P.C. Board
(PCB-7) can be removed. Unsolder the lead wires if
necessary when removing each P.C. Board.
\
J
Ti
POWER
TRANSFORMER
ee were ene te er ns
FES SA ee re cree ge een