Pioneer GM-H200 User manual
Service
cTVIamial
(i!)
PIONEER
The
Art
of
Entertainment
•
GM-H200/UC
ORDER
NO.
CRT1381
BRIDGEABLE
POWER
AMPLIFIER
_
_
_
GM-H2QO
GM-4SOO
ew
uc
NOTE:
•
In
this
unit,
an
electric
current
of
about
40A
flows
at
the
continuous
power
output
of
4Q
and
a
current
close
to
60A
flows
at
2Q.
Even
when
there
is
no
signal,
a
current
around
4A
flows.
There¬
fore,
make
a
test
at
an
appropriate
signal
level
in
consideration
of
the
power
consumption
of
the
power
supply
unit.
CONTENTS
1.
SPECIFICATIONS.
2
2.
CONTROLS
AND
THEIR
USE
(UC).
3
3.
CONNECTING
THE
UNITS
(UC)
.
4
4.
CONTROLS
AND
THEIR
USE
(EW)
.
7
5.
CONNECTING
THE
UNITS
(EW)
.
9
6.
DISASSEMBLY
.13
7.
CIRCUIT
DESCRIPTION.15
8.
CONNECTION
DIAGRAM
(UC)
.18
9.
SCHEMATIC
CIRCUIT
DIAGRAM
(UC)
.21
10.
SCHEMATIC
CIRCUIT
DIAGRAM
(EW).24
11.
CONNECTION
DIAGRAM
(EW)
.27
12.
EXPLODED
VIEW
.30
13.
PACKING
METHOD
.33
14.
ELECTRICAL
PARTS
LIST
.34
PIONEER
ELECTRONIC
CORPORATION
4-1,
Meguro
1-Chome.
Meguro-ku.
Tokyo
153,
Japan
PIONEER
ELECTRONICS
SERVICE
INC.
P.O.
Box
1760,
Long
Beach.
California
90801
U.S.A.
PIONEER
ELECTRONICS
OF
CANADA,
INC.
50S
Cochrane
Drive,
Markham,
Ontario
L3R
8E3
Canada
PIONEER
ELECTRONIC
[EUROPE]
N.V.
Keetberglaan
1.
9120
Beveren.
Belgium
PIONEER
ELECTRONICS
AUSTRALIA
PTY.
LTD.
178-184
Boundary
Road,
Braeside.
Victoria
3195,
Australia
TEL:
[03]
580-9911
©
PIONEER
ELECTRONIC
CORPORATION
1991
FA
MAY
1991
Printed
in
Japan
GM-H20D
SAFETY
INFORMATION
(UC
MODEL)
CAUTION
This
service
manual
is
intended
for
qualified
service
technicians;
it
is
not
meant
for
the
casual
do-it-yourselfer.
Qualified
technicians
have
the
necessary
test
equipment
and
tools,
and
have
been
trained
to
properly
and
safely
repair
complex
products
such
as
those
covered
by
this
manual.
Improperly
performed
repairs
can
adversely
affect
the
safety
and
reliability
of
the
product
and
may
void
the
warranty.
If
you
are
not
qualified
to
perform
the
repair
of
this
product
properly
and
safely,
you
should
not
risk
trying
to
do
so
and
refer
the
repair
to
a
qualified
service
technician.
WARNING
Lead
in
solder
used
in
this
product
is
listed
by
the
California
Health
and
Welfare
agency
as
a
known
reproductive
toxicant
which
may
cause
birth
defects
or
other
reproductive
harm
{California
Health
&
Safety
Code,
Section
25249,5).
When
servicing
or
handling
circuit
boards
and
other
components
which
contain
lead
in
solder,
avoid
unprotected
skin
contact
with
the
solder.
Also,
when
soldering
do
not
inhale
any
smoke
or
fumes
produced.
1.
SPECIFICATIONS
•
GM-H200/UC
•
GM-4200/EW
Power
source...14.4
V
DC
(10.8
■
15.6
V
allowable)
Grounding
system
..Negative
type
Current
consumption..40
A
(at
continuous
power,
412)
Average
current
drawn*.13
A
(412
for
two
channels)
18
A<412
for
one
channel)
Fuse.......30
Ax2
Dimensions.264
(W)
x
58
(H)
x
335
(D)
mm
[10
-
3/8
(W)
X
2
-
1/4
(H)
X
13
-
1/4
(D)
in.)
Weight
.7.0
kg
(15.4
Ibs.KLeads
for
wiring
not
included)
Maximum
power
output.200
W
x
2/600
Wxl
(EIAJ)
Continuous
power
output
.100
W
x
2/300
W
x
1
(at
412,
20
■
20,000
Hi,
0.05%
THD)
150
W
X
2
(at
212
,
20
■
20,000
Hz.
0.05%
THD)
Load
impedance
..412
(2
•
812
allowable)
Frequency
response
.10
-
50,000
Hz
1+0
dB,
-1
dB)
Stgnel-to-noise
ratio.105
dB
(IHF
-
A
network)
Distortion..0.001%
<at20W,
1
kHz)
Separation
.70dB(1
kHz)
Input
level.0.2
-2
V/8kl2
These
specifications
were
determined
and
are
presented
in
accordance
with
specification
standards
established
by
the
Ad
Hoc
Committee
of
Car
Stereo
Manufacturers.
Power
source.14.4
V
DC
(10.8
■
15.6
V
allowable)
Grounding
system.Negative
type
Current
consumption.40
A
lat
continuous
power,
412)
Average
current
drawn
*
.13
A
(412
for
two
channels)
18
A
(412
for
one
channel
(212
position)!
Fuse.30
Ax
2
Dimensions.264
(W)
x
58
(H)
x
335
(D)
mm
Weight.7.0
kg
ILeads
for
wiring
not
included)
Maximum
power
output.240
W
x
2/640
W
x
1
(EIAJ)
Continuous
power
output
.120
W
x
2/320
W
x
1
(at
412,
20
-
20,000
Hz,
0.05%
THD)
160
W
X
2
(at
212,
20
-
20,000
Hz,
0.05%
THD)
Load
impedance.412
(2
-
812
allowable)
Frequency
response.
5
-
50,000
Hz
(+0
dB,
-1
dB)
Signal-to-noise
ratio.105
dB
(IEC
-
A
network)
Distortion.0.0009%
(at
20
W,
1
kHz)
Separation
..70
dB
(1
kHz)
Input
level.RCA:
0.4
-
4
V
/8
k!2
DIN:
70
-
500mV
122
k!2
Note:
Specifications
and
the
design
are
subject
to
possible
modification
without
notice
due
to
improvements.
Note:
Specifications
and
the
design
are
subject
to
possible
modification
without
notice
due
to
improvements.
2
-^
GM-H200
2.
CONTROLS
AND
THEIR
USE
(UC
MODEL)
O
Power
Indicator
The
power
indicator
lights
when
the
power
is
switched
on,
©RCA
Input
Level
Control
Adjusting
the
RCA
input
level
control
will
help
match
the
output
of
the
car
stereo
to
the
Pioneer
amplifier.
If
the
output
is
low
even
when
the
volume
of
the
car
stereo
is
turned
up,
turn
this
control
clockwise.
If
there
is
distortion
when
the
volume
of
the
car
stereo
is
turned
up,
turn
this
control
counterclockwise.
•
Adjust
control
O
with
the
supplied
adjustment
screwdriver.
Keep
the
screwdriver
if
you
need
to
readjust
the
controls
later.
BFC
(Beat
Frequency
Control)
switch
Note:
Beating
is
the
combining
of
two
or
more
frequencies
to
produce
sum
and
difference
frequencies
called
beats.
If
beating
is
heard
when
listening
to
AM
stations
on
you
car
radio,
change
the
position
of
the
BFC
switch
on
the
bottom
of
the
amplifier
with
a
small
flat-bfaded
screwdriver.
BFC
switch
Compulsory
fan
cooling
system
This
is
a
high-power
amplifier,
so
it
produces
a
lot
of
heat.
To
keep
it
cool,
it
has
fan
cooling.
•
When
the
power
of
the
car
stereo
is
turned
on,
the
compulsory
cooling
fan
of
this
power
amplifier
works
automatically
and
cools
inside
of
this
amplifier.
•
Install
the
amplifier
so
there
is
enough
space
front
and
back
to
allow
the
fan
cooling
to
work
properly.
If
the
front
or
back
side
is
covered,
the
amplifier
may
malfunction
or
fail.
“xjmnnnnnnrirw^
Compulsory
fan
cooling
air
outlet
3
GM-H2QO
3.
CONNECTING
THE
UNITS
(UC
MODEL)
-
WARNINGS-
•
When
routing
leads
and
cords,
secure
them
with
cable
retainers
and
electrician's
adhesive
tape.
Also,
to
prevent
any
damage
to
the
insulation
on
the
leads
and
cords,
protect
them
with
electrician's
adhesive
tape
wherever
they
touch
sharp
edges.
Be
sure
to
use
a
rubber
O-ring
grommet
when
routing
wires
through
metal,
such
as
the
firewall
between
the
engine
and
passenger
compartments.
•
Keep
ail
wiring
away
from
hot
surfaces
or
heater
outlets
to
prevent
short
circuits.
•
Amplifier
ground
connections
(Black)
should
only
be
made
to
the
vehicle's
metal
body
or
chassis
for
safety
reasons.
The
ground
circuit
carries
the
same
current
as
the
power
lead
from
the
vehicle's
battery.
To
get
good
contact
when
grounding,
sand
the
metal
surface
to
expose
the
bare
metal.
If
using
multiple
amplifiers,
connect
all
amplifier
ground
leads
to
the
same
point
to
prevent
noise
problems.
•
Always
connect
the
supplied
special
(red)
battery
lead
directly
to
the
positive
(+)
terminal
of
the
battery.
•
It
is
recommended
that
the
speakers
connected
to
the
amplifier
have
the
minimum
ratings
shown
below.
If
a
speaker
has
a
rating
below
what
is
recommended,
it
may
be
damaged
when
the
volume
is
turned
up.
The
speaker
impedance
must
be
2
to
8
ohms.
Mode
Speaker
ratings
Two-channel
Maximum
200
W
Nominal
100W
One-channel
Maximum
600
W
Nominal
300
W
In
the
case
of
a
fult-range
speaker,
use
one
whose
maximum
rating
is
higher
than
the
maximum
rating
shown.
In
the
case
of
a
sub-woofer,
use
one
whose
nominal
rating
is
higher
than
the
nominal
rating
shown.
•
Never
connect
a
speaker
lead
to
ground
or
to
other
speaker
grounds.
The
protection
circuitry
will
operate
instantaneously,
turning
off
the
amplifier.
•
To
prevent
noise
problems,
keep
the
amplifier
power
leads
away
from
the
signal
cords
{RCA
cords)
and
speaker
leads.
Also,
keep
the
power
leads
away
from
any
antenna
cords.
•
Before
finalizing
the
installation,
turn
everything
on,
and
make
sure
everything
works
correctly
and
listen
for
noise
in
the
system.
•
For
detailed
information
on
connections
between
different
units
and
the
amplifier,
use
the
instruction
manuals
for
the
units.
It
is
important
to
follow
their
recommendations
precisely.
Connecting
the
special
red
battery
lead
Use
the
special
(red)
battery
lead
supplied
with
the
amplifier.
This
lead
contains
the
appropriately
rated
fuse
[30-amp
fuse
(x2)].
This
special
(red)
battery
lead
is
made
of
heavy
gauge
wire
so
it
is
capable
of
carrying
substantial
amounts
of
current.
Connect
both
of
the
two
terminals
at
each
end
of
the
battery
lead
securely.
Should
any
one
terminal
come
loose,
there
may
be
a
short
circuit,
perhaps
causing
electric
shock
or
even
a
fire.
Route
the
special
battery
lead
from
the
engine
compartment
through
the
firewall
or
vehicle
body
to
the
passenger
compartment
and
connect
it
to
the
amplifier.
Drill
an
14-mm
diameter
hole
in
the
firewall
or
vehicle
body
and
insert
an
O-ring
rubber
grommet
and
pull
the
battery
lead
through
into
the
passenger
compartment.
Note:
The
O-ring
rubber
grommet
is
important
because
it
protects
the
insulation
on
the
battery
lead
from
being
worn
away
from
normal
vibrations
and
rubbing
against
sharp
metal
edges.
Failure
to
install
this
grommet
could
result
in
a
short
circuit
and
fire.
While
installing
the
wires,
do
not
connect
the
positive
(+)
lead
of
the
battery
until
the
other
leads
have
been
connected.
This
will
prevent
accidental
shorting
to
any
other
wiring
or
ground.
After
making
all
other
connections
at
the
amplifier,
connect
the
battery
lead
terminal
of
the
amplifier
to
the
positive
{+}
terminal
of
the
battery-
vehicle
body.
After
all
the
other
leads
have
been
connected,
connect
both
terminals
to
the
positive
(+)
terminal
of
the
battery
After
making
all
other
connections
at
the
amplifier,
connect
the
battery
lead
terminal
of
the
amplifier
to
the
positive
(+)
terminal
of
the
battery.
A.
GM-HSOQ
Connecting
the
leads
(supplied)
Connecting
the
speaker
leads
The
speaker
output
mode
can
be
two-channel
(stereo),
one-
channel
(mono),
or
three-channel
(stereo
+
mono}.
Connect
the
speaker
leads
to
suit
the
mode.
To
connect
the
speaker
leads
to
the
speaker
terminals
of
the
amplifier,
see
the
connection
diagram
for
each
channel.
Be
careful
with
the
polarity
(+
and
-},
and
with
which
channel
ts
which
(left
[L]
and
right
[R]).
•
If
the
amplifier
is
used
in
three-channel
mode,
inductors
and
capacitors
are
needed.
For
more
information,
see
"Three-channel
mode
(stereo
+
mono)".
Two-channel
mode
(stereo)
5#irtir
©
»
©
©
L
©
©-ha-©
_t
f
t
t
©
®
©
e
Speaker
output
Speaker
output
(right)
(left)
One-channel
mode
(mono)
StMMi
M(mI
©
»
S
©
L
©
©—
Mm-©
The
following
examples
(1
and
2)
require
advanced
understanding
of
electronics.
If
you
do
not
understand
the
diagram,
please
have
the
work
done
by
your
nearest
authorized
Pioneer
installation
specialist.
Three-channel
mode
(stereo
+
mono)
The
power
amplifier
is
basically
a
two-channel/one-channet
bridgeable
amplifier,
but
three
channels
can
be
achieved
by
combining
the
stereo
and
mono
modes
using
inductors
and
capacitors.
Some
typical
examples
are
given
below.
Example
1
Three-channel,
two-way
system
5
GM-H2DO
Example
2
Three-channel,
three-wav
system
L
L
R
R
o
©
©
©
Left
tweeter/
-1
Len
twee
Ci
bQ'j
mid-high
-II-1
unit
unit
Left
mid-range/
mid-bass
unit
Mono-woofer/
subwoofer
Right
mid
range/
mid-bass
unit
Right
tweeter/
mid-high
unit
•
The
inductor
(LI
or
L2
in
the
diagram)
acts
as
a
low-pass
filter.
The
capacitor
(Cl
or
C2
in
the
diagram)
acts
as
a
high-pass
filter.
•
In
the
three-channel
mode
Pioneer
recommends
that
an
inductor
(U
be
used
on
the
woofer/subwoofer,
and
that
a
capacitor
(C)
be
used
on
the
midrange/tweeter.
Remem¬
ber
when
bridging
an
amplifier
it
will
see
only
half
of
the
original
speaker
impedance.
Therefore,
you
must
use
speakers
that
have
ratings
of
4
ohms
or
higher.
If
you
use
speakers
that
have
lower
impedance
ratings
it
may
cause
damage
to
the
amplifier.
•
When
the
inductors
and
capacitors
are
connected
to
the
speaker
leads,
secure
or
solder
them
so
they
cannot
be
pulled
loose.
Tape
or
use
heat
shrink
on
the
joints
to
prevent
short
circuits.
Setting
the
fitter
constant
i
Low-pass
filter
(tor
subwoofer/woof
e
r):
6
dB/octave
0"
O-
LI
■
Jo]
-OdB
2
High-pass
filter
(for
mid-tweeter/mid-high-tweeter):
6
dB/octave
f
3
Band-pass
filter
(combination
of
low-pass
filter
and
high-pass
fitter
for
mid-bes$/mid):
6
dB/octave
L2
Cl
©—Tmr-
0-
-1!-1
Component
Guide
Speaker
load
impedance
211
Ail
8Q
!
fc
(Hz)
LlmH)
C
(gF)
LlmH)
ClgF)
LlmH)
C
(gF)
so
5.4
1600
12.7
800
25,5
400
00
4.0
1000
8.0
500
16
250
125
2.5
560
5.1
300
to
160
200
1.6
400
3.2
200
6.4
100
320
1.0
250
2.0
125
4
62
500
0.64
160
1.3
80
2.6
40
800
0.4
100
0.8
50
1.6
25
1250
0.25
64
0.5
30
1,0
16
2000
0.16
40
0.3
20
0.64
10
3200
0,1
25
0.2
12.5
0.4
6.2
5000
0.06
16
0.13
8
0.26
4
0000
0.04
10
0.08
5
0.16
2,5
10000
0.03
_
0.06
4
0.13
2
•
A
multi-channel
system
can
be
set
up
using
a
combination
of
filters
1
,
2
,
and
3
.
The
inductance
(L)
and
capacitance
(C)
will
determine
the
frequency
(Hz)
that
the
speaker
will
reproduce.
Refer
to
the
chart
on
the
above
to
determine
the
components
required.
r-
WARNING
-
•
Use
the
capacitors
specified.
Non-polarized
capacitors
rated
at
over
±40
V
should
be
used
for
Cl
and
C2
in
the
diagram.
Because
of
the
voltage
output
of
the
amplifier
it
is
very
important
to
use
non-polarized
capacitors
rated
at
or
over
40
V.
This
will
prevent
a
safety
hazard.
6
GM-H200
4.
CONTROLS
AND
THEIR
USE
(EW
MODEL)
O
Power
Indicator
The
power
indicator
lights
when
the
power
is
switched
on.
ODIN
input
gain
and
RCA
input
level
controls
The
DIN
input
gain
and
RCA
input
level
controls
are
used
to
adjust
the
DIN
input
gain
and
RCA
input
level,
respectively.
Set
the
input
selector
to
suit
the
type
of
the
car
stereo
component
to
be
connected.
If
this
amplifier
is
connected
to
a
Pioneer
car
stereo
component
with
DIN
sockets,
set
the
DIN
gain
control
to
the
specified
position
(
■
).
If
the
amplifier
is
connected
to
a
Pioneer
car
stereo
component
with
RCA
pin
jacks,
set
the
RCA
level
control
to
the
specified
position
(•).
If
the
amplifier
is
connected
to
a
non-Pioneer
car
stereo
component
with
RCA
pin
jacks,
adjust
the
input
level
as
shown
in
Fig.
A
RCA
Level
4V
•
400mV
•
_
The
position
indicated
by
♦
represents
0.5
V.
Fig.
A
•
Adjust
control
•
with
the
supplied
adjustment
screwdriver.
Keep
the
screwdriver
in
case
you
need
to
readjust
the
controls
later.
Input
selector
Set
the
input
selector
to
Suit
the
car
stereo
component
connected
to
the
amplifier.
To
connect
the
amplifier
to
a
car
stereo
component
with
RCA
pin
jacks,
set
the
input
selector
to
the
left
side
(RCA
position).
To
connect
the
amplifier
to
a
Pioneer
car
stereo
component
with
DIN
sockets,
set
the
input
selector
to
the
right
side
(DIN
position).
Drive
mode
switch
If
the
impedance
of
the
speakers
used
with
the
amplifier
is
40
or
more,
slide
the
drive
mode
switch
on
the
rear
of
the
amplifier
to
the
right
{Normal
40).
If
one
channel
(mono)
is
used,
or
if
the
speaker
impedance
is
40
or
less,
slide
the
switch
to
the
left
(Dynamic/Bridge).
Input
selector
Drive
mode
switch
7
Grvf-HSOD
BFC
(Best
Frequency
Control}
switch
tf
beating
is
heard
when
listening
to
AM
stations
on
your
car
radio,
change
the
position
of
the
BFC
switch
on
the
bottom
of
the
amplifier
with
a
small
flat-bladed
screwdriver.
Compulsory
fan
cooling
system
This
is
a
high-power
amplifier,
so
it
produces
a
lot
of
heat.
To
keep
it
cool,
it
has
fan
cooling.
•
When
the
power
of
the
car
stereo
is
turned
on,
the
compulsory
cooling
fan
of
this
power
amplifier
works
automatically
and
cools
inside
of
this
amplifier.
•
Install
the
amplifier
so
there
is
enough
space
front
and
back
to
allow
the
fan
cooling
to
work
properly.
If
the
front
or
back
side
is
covered,
the
amplifier
may
malfunction
or
fail.
f
"i
i|
[51
\i
y
m
Compulsory
fan
cooling
air
outlet
B
GM-Haoo
5.
CONNECTING
THE
UNITS
{EW
MODEL)
Connect
the
components
as
shown
in
the
diagram.
•
Before
finalizing
installation,
turn
everything
on,
and
make
sure
everything
works
correctly
and
that
no
noise
is
getting
into
the
system.
•
When
routing
leads
and
cords,
secure
them
with
cable
retainers
and
electrician's
adhesive
tape.
Also,
to
prevent
any
damage
to
the
insulation
on
the
leads
and
cords,
protect
them
with
electrician's
adhesive
tape
wherever
they
may
touch
sharp
edges.
•
Keep
all
wiring
away
from
hot
surfaces
or
heater
outlets
to
prevent
short
circuits,
•
It
is
recommended
that
the
speakers
connected
to
the
amplifier
have
the
ratings
shown
below,
or
higher.
If
a
speaker
has
a
rating
below
that
recommended,
it
may
be
damaged
when
the
volume
is
turned
up.
The
speaker
impedance
must
be
2
to
8
ohms.
Mode
Speaker
ratings
Two-channel
Maximum
240
W
Nominal
120
W
One-channel
Maximum
640
W
Nominal
320
W
In
the
case
of
a
full-range
speaker,
use
one
whose
maximum
rating
is
higher
than
the
maximum
rating
shown.
In
the
case
of
a
sub-woofer,
use
one
whose
nominal
rating
is
higher
than
the
nominal
rating
shown.
Never
connect
a
speaker
lead
to
ground
or
to
other
speaker
grounds.
The
protection
circuitry
will
operate
instantaneously,
turning
off
the
amplifier.
To
prevent
noise
problems,
keep
the
power
leads
to
the
amplifier
away
from
the
signal
cords
and
speaker
leads.
Also,
keep
the
power
leads
away
from
any
antenna
cords.
Amplifier
ground
leads
(blackl
should
be
connected
to
a
solid
metal
part
of
the
vehicle
body.
If
using
multiple
amplifiers,
connect
all
amplifier
ground
leads
to
the
same
point
to
prevent
noise
problems.
To
get
good
contact
when
grounding,
you
may
have
to
sand
away
the
paint
to
expose
the
metal
underneath.
To
operate
the
amplifier
and
car
stereo
properly,
connect
the
battery
lead
and
the
accessory
power
lead
(red/black)
correctly.
If
the
leads
are
not
connected
correctly
or
are
not
connected
at
all,
the
amplifier
and
car
stereo
will
not
work.
To
connect
the
amplifier
to
the
RCA
pin
jacks
of
a
car
stereo
component,
use
an
audio
cord
with
RCA
pin
plugs.
To
connect
the
amplifier
to
the
DIN
socket
of
a
car
stereo
component,
use
a
DIN
connection
cord.
Both
kinds
of
cord
are
available
from
your
dealer.
Connecting
the
battery
lead
(red)
Route
the
positives)
battery
lead
(red)
from
the
engine
compartment
to
the
passenger
compartment
before
connecting
it
to
the
amplifier.
To
prevent
a
short
circuit,
only
connect
the
lead
after
connecting
all
the
other
leads.
Connect
the
two
wires
of
the
battery
lead
securely.
If
either
of
them
comes
loose
because
of
vibration
while
the
car
is
moving,
a
short
circuit
may
occur
and
a
fire
may
break
out.
Connect
these
terminals
securely
to
the
two
battery
terminals.
After
all
the
other
leads
have
been
connected,
connect
both
terminals
to
the
positrve
(+)
terminal
of
the
battery.
B
GM-HSOO
Connecting
the
leads
(supplied)
Connecting
the
speaker
leads
This
amplifier
can
select
two-channel
output
(stereo)
or
one-channel
output
(mono).
The
speaker
leads
must
be
connected
to
suit
the
mode
selected.
Connect
the
speaker
leads
to
the
output
terminals
of
the
amplifier,
paying
attention
to
the
polarities
<+
and
-)
and
lead
colors.
TWo-channel
mode
(stereo)
Sm*h
kW
©
«
©
©
L
©
0—hi
©
t
t
t
t
®
©
©
©
Speaker
output
Speaker
output
(right)
(left)
One-channel
mode
(mono)
•
Slide
the
drive
mode
switch
to
the
left
{Dynamic/Bridge).
Spwtor
lafet
©
*
©
©
L
©
©—
■
*.—©
Speakers
to
be
connected
to
the
amplifier
for
one
channel
(mono)
If
this
amplifier
is
used
for
one
channel
(mono),
its
nominal
output
is
320
W
(640
W
max.).
To
handle
this
output,
four
identical
speakers
with
nominal
inputs
of
80
W
or
more
should
be
connected
as
shown
below
(making
the
total
nominal
inputs
320
W
or
more).
The
output
volume
will
be
greater
than
when
only
a
single
speaker
is
used.
One-channel
(mono)
output
ID
GIV1-H200
Speaker
lead
connection
procedure
1.
Loosen
the
four
screws
of
the
speaker
terminals
(Speaker
Output)
on
the
rear
of
the
amplifier.
2.
Insert
the
end
of
each
speaker
lead
between
the
speaker
terminal
and
its
screw
according
to
the
mode
to
be
used,
and
tighten
the
screw.
Terminal
screw
Speaker
lead
terminal
Connection
of
the
battery
power,
and
ground
leads
1.
P
ass
the
leads
through
the
band
for
preventing
short
circuits.
•
This
band
must
be
used.
3.
C
over
each
terminal
block
with
a
short-circuit
prevention
band.
•
This
band
must
be
used.
Short-circuit
prevention
band
2.
L
oosen
the
screws
(x
2)
of
the
terminals
on
the
front
panel
of
the
amplifier.
•
Remove
the
screws
(x
2)
from
the
two
battery
power
terminals.
Terminal
screws
Remove
only
the
screws
of
the
battery
lead
terminal.
(Loosen
all
the
other
screws.l
3.
C
onnect
the
battery
lead
to
the
two
battery
lead
terminals,
5.
Slide
the
short-circuit
prevention
band
over
the
terminals,
reinserting
and
tightening
the
screws
(x
2).
4,
C
onnect
the
ground
lead
to
the
two
ground
lead
terminals,
tightening
the
screws.
Terminal
screws
1
1
GM-HSQO
When
Combined
with
a
Car
Stereo
with
RCA
Pin
Jacks
Green
stripes
Black
stripes
Right-hand
speaker
(Front
of
amplifier)
Battery
lead
fuses
130
A
x
2)
Note
Connection
of
the
speaker
leads
for
two
channels
(stereo)
is
different
from
connection
of
the
speaker
leads
for
one
channel
(mono).
(See
'Connecting
the
Speaker
Leads"
on
page
10.)
Red
El
jinnnjyyn^mnrjvvuvtn
Connect
both
terminals
to
the
car
body
or
to
a
metal
part
in
contact
with
the
body
Black
Black
After
all
the
other
leads
have
been
connected,
connect
both
terminals
to
the
positive
1+)
terminal
of
the
battery
Fuse
(30A)
Red
“i
^
s
t—\—^
-
Compulsory
fan
cooling
air
outlet
1
u
AnArinrjiru
M
n
Car
stereo
wfth
RCA
pin
jacks
White
Connecting
leads
with
RCA
pin
plugs
Isold
separately}
-
(Rear
of
amplified
Set
the
selector
to
the
left
position.
Red
White
pjo
connection
Blue
hi
—i
Blue
Connect
the
male
terminal
of
this
lead
to
the
blue
lead
of
the
car
stereo
(system
control
terminal).
The
female
terminal
can
be
connected
to
the
auto-antenna
relay
control
terminal.
Yel
low/Black
Red
Fuse(30A)
Gromment
Fuse
resistor
Red/Black
Fuse
I3A)
Do
not
connect
anything
to
this
lead
(connect
the
yellow
lead
of
a
car
stereo
equipped
with
pin
jacks
to
the
proper
lead
designated
locations).
To
electric
terminal
controlled
by
ignition
switch
(12
V
DC)
ON/OFF.
When
Combined
with
a
Car
Stereo
with
DIN
Sockets
n
r-a
—
u
—CZJ
Oht
-
See
Note
1.
Left-hand
speaker
Connect
both
terminals
tn
the
car
body
or
to
a
metal
part
in
contact
with
the
body.
After
all
the
other
leads
have
been
connected,
connect
both
terminals
to
the
positive
(+)
terminal
of
the
battery
Note
1.
Connection
of
the
speaks
1
leads
for
two
channels
Istereo)
is
different
from
connection
of
the
speaker
leads
for
one
channel
(monol.
(See
'Connecting
the
Speaker
Leads'
on
page
10.)
DIN
connection
cord
for
power
amplifier
Isold
separateiyi
rp*
Car
stereo
with
UN
socket*
(Rear
of
amplifier)
Fuse(30AI
Red
Fuse
(30A)
__.
Connecrtothe
positive
(+)
terminal
Yellow/Black
(C
|
0Cj<
illumination,
small
lamp
circuits,
etc.I
of
the
car's
lighting
switch.
|
|
i
RedfBlack
To
e
|
ectrjc
,
terminal
controlled
by
Fuse
(3AI
ignition
switch
(12
V
DC)
ON/OFF.
Gromment
1
2
GM-HSQO
6.
DISASSEMBLY
•
Remove
the
Case
1.
Remove
the
four
screws
A
and
remove
the
two
cases.
2.
Remove
the
two
screws
C
and
remove
the
rear
panel.
3.
Remove
the
four
screws
D
and
thirteen
screws
E.
4.
Remove
the
Amp
Unit.
Fig.
1
Fig.
2
13
GM-H200
•
Remove
the
Bracket
1.
Remove
the
screw
F
and
remove
the
LED
Assy.
2.
Remove
the
three
screws
G
and
remove
the
bracket.
Fig.
3
Attention
points
for
disassembling
•
The
screw
of
ground
terminal
cannot
be
removed.
Don't
loosen
forcibly.
•
After
removing
the
amplifier
unit,
put
the
amplifier
unit
on
the
heat
sink
being
faced
down.
When
the
amplifier
unit
on
the
audio
circuit
side
(The
side
fixed
by
four
screws)
is
fixed
using
the
screw,
the
test
at
full
power
can
be
done
for
approx,
20
minutes.
1
A
7.
CIRCUIT
DESCRIPTION
•
Isolator
circuit
The
differential
amplification
circuit,
which
is
usually
combined
with
the
operational
amplifier
and
the
resist¬
ance
network,
is
arranged
to
the
dedicated
1C.
The
ripple
removal
ratio
is
further
improved
than
the
conventional
differentia!
amplification
circuit.
•
Non-switching
circuit
type
ID
By
adding
Q429
to
Q432,
distortion
removal
capacity
is
improved.
•
PWM
POWER
SUPPLY
{Voltage
detection
circuit
for
both
positive
and
negative
voltage.)
The
PWM
power
supply
is
a
circuit
that
maintains
stable
secondary
voltage
in
a
DC-DC
converter,
regardless
of
the
voltage
fluctuation
and
load
fluctuation
of
the
primary
voltage.
Former
PWM
power
supply
detected
and
controlled
only
positive
voltage
of
DC-DC
converter.
New
PWM
power
supply
increases
output
in
the
lower
range
through
detect¬
ing
and
controlling
both
positive
and
nagative
voltages
and
it
creates
a
higher
fidelity
sound.
{Manufacture
the
current
mirror
using
Q114andQ115,
and
input
—V
H
into
the
pin
16
of
IC101
through
Q116.
4-V
H
is
input
through
Q117.
R131
toR134are
the
voltage
dividers.)
•
Troidal
transformer
and
others
To
improve
efficiency
and
to
delete
the
leakage
flux,
the.
"doughnut"
type
transformar
is
adopted.
And
corre¬
sponding
to
current
increment,
two
fuse,
choke
coil
paral¬
lel
combinations.
(L101,
L102)
•
DC
servo
To
reduce
the
DC
component
appeared
in
the
output,
DC
is
fed
back
by
means
of
IC201
and
IC202.
This
circuit
performs
the
low-pass
feed
back
of
less
than
200Hz
simul¬
taneously.
•
In
this
unit,
the
mode
selecting
circuit
was
simplified
in
the
following
manners.
©Always
inverse
©The
output
side
is
indicated
phase
as
(-).(For
the
speakers,left
and
right
channels
are
of
the
same
phase.)
Fig.
4
Figure
shows
the
case
of
UC,
EW
carries
out
®
and
(D
on
the
right
channel.
For
the
above
two
reasons,
a
signal
selector
switch
was
eliminated.
When
you
make
a
test,
take
care
not
to
short-circuit
(OUTPUT)
and
(GND).
Especially
when
you
measure
two
channels
at
the
same
time,
a
great
care
must
be
taken
because
short-circuit
is
susceptible
to
take
place
at
the
measuring
instrument.
15
•
ICs
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12.
EXPLODED
VIEW
n
I
6
•
Parts
List
NOTE:
•
The
parts
marked
with
"
•
"
may
need
long
time
to
supply
and
their
supply
is
subject
to
refuse
as
the
case
may
be.
•
Because
the
parts
with
encircled
number
shown
on
the
dismantling
drawing
are
not
spare
parts,
we
are
unable
to
supply
them
in
principle.
Ho.
Description
Part
Ho.
Mark
No.
Description
Part
Ho.
t
Lens
CUS70S0
4
B
Case
C
N
*
H
f
0
?
Heat
Sink
(*JC)
CHRIH6
4
9
lift
A'rsy
cxa?
i
it
3
Heat
Sink
(LW)
C
KK
170b
50
Cord
aiiirn
3
Panel
!UC)
C
N
B
M
?
1
51
Screw
|lM
7
31)
I
1
ft
5
U1
MC
Panel
(fVf)
CN8146?
5
?
Holder
CHC3839
4
Screw
8SZ30P0
50
FMC
S3
Bracket
CKC3838
5
Cover
CNS22H
84
Screw'EW)
0!4?20P080fMC
6
Screw
BMI30P050FIJC
5
5
Counce
tor
(EY7)
CXS1186
7
7
he
rnis
t
e
r
CCXI017
55
Screw
PP/SOPtOOm
5
Screw
BMZ3DP
0
5
0
FVtC
57
Jack
CRB1006
9
Bracket
CNC3540
i
-.1
Screw
PP730P10CF/K
10
Screw
BM7
30
P
0
8
0
F
MC
89
r
e
r•in
a
1
CKF1018
11
1
fans
i
stc'
2SAK73
60
Screw
BHJ35H
0
5
0
FMC
\7
Transistor
2$A!3B6
61
Bracket
CHC384C
13
Transistor
2$C3
?98
62
Screw
BM730P080FMC
14
Trans.’s
t
o
r
2SC4388
63
Transistor
2
SC
43
88
IS
Heat
Sink
CHRIiOI
64
Transistor
JSC379
3
lC
Screw
BI.U3QPB50FMC
US
Transistor
?
S
A
1
3
0
6
\
?
Bracket
CI1C3S40
66
Transistor
?
S
A1673
13
Screw
BM73CP080TMC
6)
Heat
Sink
CNR1707
•?
FET
2SK1111
68
Screw
nmopoboruc
?C
Heat
Sink
CNR
1111
69
Bracket
CHC3541
2'
Screw
BB730P1
SO
FMC
70
Screw
BM73BPOSOFMC
27
Screw
BBZJCPOtOlHC
11
Diode
f
MG-37K
?
3
Terminal
CKC3641
n
ftio<k
IMG
325
?
4
Auto
Fuse
Holder
CKR10D4
73
Heat
Sink
C
N
R
1
2
0
9
2
5
Terminal
CKE1070
74
C
d
r
d
Assy
CDE30I9
JS
Bracket
CNC3537
78
Cord
Assy
(iW>
C
D
t
3
3
0
8
5?
Screw
PP23BP100F
2t
76
Resistor
(EW)
R$1/2P102Jl
2
c
Screw
PP220P080f
2K
7
7
Cap
(FW)
C
N
5
14
7
!
29
bracket
CNC3S36
U
fuse
(EW)
CEK1134
30
Motor
fan
CXM1047
79
Cord
Assy(fW)
CDF
329
?
31
Screw
6W.Z3OP3S0IMC
80
Cord
(tW)
CDF
3
0
69
32
fuse
C€K
1140
81
Cord
(EW)
CDE3299
33
Panel
(£'ff;
CKB1473
8?
Fuse
(EVf)
CFX1
140
37
Screw
BHMOPOSOI
MC
tu
Auto
fuse
11
1
>
1
<J
c
i
(tW)
CKIt
1
DO6
3
5
S
i>
a
c
e
r
CHM314J
f.4
Cord
Assy
(1'C)
Cftf
3793
3(.
Amp
Unil
!l
:
C
)
CWM7TI7
Kb
Cord
(DC)
Clil
3009
Amp
Unit
{
E
W)
CWK7
T
B1
86
Cord
(
U
C
)
CDF
3063
37
Screw
BM234P0S0FMC
87
fuse
(UC)
CEX11
17
33
Shield
Case
CNC1E40
88
Cord
Assy
(UC)
CDE3309
39
Shield
Case
CNC1S4J
89
Pans
1
(OC)
CNBU??
JO
Holder
CNC3543
50,91
.
4
1
Cl
amp
e
r
C
N
V13
4
3
9?
Knob
CAA1278
4?
Plug
CXS-587
43
Plug
cks
i
a?
i
44
Spacer
CKM3075
45
Spacer
C
KM
3141
46
Insulator
C
KM
314
0
47
Screw
B[U
3OPO60F
MC
in
GM-H200
13.
PACKING
METHOD
•
Parts
List
KSP
:
Hon
Spare
Part
Mark
No.
Deteription
GM-H2
0
0/UC
GM-4!00/EW
fart
lio.
Part
No.
1-1
Owner'
s
Manna
1
C
H
D1
452
CRD
1455
Owner’
s
Manila
1
C
RD1456
i-?
Card
NSP
Card
NSP
2
Accessory
Assy
C
£
A
16
5
4
CEA1654
;-i
Screw
Assy
MSP
NSP
2-1-1
Sc
rew
(x
4)
HYC50P65DFZK
HYG50P650FZK
2-2
Cover
[
X
I)
CNS2211
cNsnn
2-3
Driver
CNV2697
CNV269Z
3
St
y
r
of
oai
CHPMr
CH
P14?1
4
Cover
CfGllOO
CEC
MOO
s
Cord
Assy
CDE3309
COE
3308
6
Cord
Assy
C
D13
0
19
COE
3
019
?
Cord
Assy
CDE3298
CDE3297
2-1
Co
rd
COE
3
D
6
9
C
DE
308
9
2-2
Cord
COE
3
06
4
CDE
3!
9
9
8
Carton
C
KG
2
0
0
3
CHG200Z
9
Contain
Box
CHL2003
10
StyrC.Djn
C
H
P*
4?
2
CKP'42!
*
Owner'
s
Manual
Part
No.
Model
Language
CRD
14
57
UC
Eng
1
i
sEi,
french
CRD
14
55
£W
English,
french.
Carman,
Spanish
CRD
14
6
8
EW
Swedish.
Norwej
ian.
Dutch.
Italian,
Finnish
33
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