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Pioneer GM-4000EW Service Manual page 3

Bridgeable power amplifier

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2. CONNECTION
Connect the components correctly as shown in the diagram.
¢ Test-connect all components
before securing them into place.
Test-operate your entire car stereo system to ensure that there are
no faulty wiring . connections between this unit and the rest of
your Car stereo system.
©
The input selector of this amplifier functions automatically. There-
fore, the amplifier may be used with either a car stereo with RCA
pin jacks or a Pioneer car stereo with DIN sockets. For information
about connecting a stereo, see the section entitled "When com-
bined with a car stereo with RCA pin jacks" or that entitled "When
combined with a car stereo with DIN sockets".
e When two channels (stereo) are used, the speakers should have a
minimum
rating of 200 W or more. When
a single channel
{mono) is used, the speaker should have a minimum
rating of
400 W or more. If a speaker whose rating is below that recom-
mended is used, the speaker may be damaged. The impedance of
the speakers should be between 2 and 8 ohms.
e
For detailed information concerning connections between differ-
ent components and this unit consult their respective instruction
manuals and follow those recommendations precisely.
e
When wiring connecting leads into place secure them with clam-
pers and adhesive electrician's tape. Additionally, to prevent any
damage to the insulative coating of the connecting leads, protect
them with adhesive electrician's tape wherever they may come
into contact with any sharp edges.
e
Wire all connecting leads so that they stay well clear of high-tem-
perature areas such as the heater exhaust port.
e
To operate the amplifier and car stereo properly, install the contin-
uous power supply lead (orange stripes) and the accessory power
lead (red) correctly.
If the leads are not installed correctly or are
not connected at all, the amplifier and car stereo will not work.
¢
To use a car stereo with DIN sockets, use the optional component
extension cable.
Connecting Leads (Supplied)
Connecting the Continuous Power Supply Lead
(Orange Stripes)
e
Route the continuous power supply lead (orange stripes) from the
engine compartment to the passenger compartment and connect
it to the amplifier.
To prevent short-circuits, make sure you con-
nect all the other leads first, then connect the end of the continu-
ous power supply lead to the positive (+) terminal of the battery.
Passenger compartment
|
—»
Engine compartment
Fit the rubber
grommet
into
the hole in
the car body.
Dritl a hole in
the car body.
Continuous power
supply lead
{orange stripes)
Connect all the
other leads, and
finatly connect this
terminal to the
positive (+) termi-
nal of the battery.
Fig. 3
Connecting Speaker Leads
*
This amplifier has a mode select switch to select two-channel out-
put (stereo) or one-channel output (mono). The speaker leads
must be connected to suit the mode selected. Connect the speak-
er leads to the output terminals of the amplifier as shown in Fig. 4
and 5. paying attention to the polarities (+ and -), channels (right
and left), and lead colors.
When two channels (stereo) are used
e Set the mode select switch to the 2CH position.
Strip the ends of the wires
and bend the ends.
Lead supplied with
the speaker system
Lead supplied with
.
Fig. 4
When one channel (mono) is used
9
e
Set the mode select switch to the 1CH position.
Strip the ends of the wires
and bend the ends.
+
Lead supplied with
a
A
the speaker system
~
Fig. 5

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This manual is also suitable for:

Gm-4000uc