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Pioneer GM-X404 X1H/UC Service Manual page 14

Bridgeable four-channel power amplifier
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GM-X404,X304
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128)
(32]
17}
118]
{32]
O7LA
(181
{21]
133} [34]
Four-channe! mode (Fig. 15)
[2]
RCA Input Select Switch
For two-channel input, slide this switch
to the left. For four-channel input, slide
this switch to the right.
[16] Output (Front/Rear)
If only one input pin plug is used, do not
connect anything to RCA input jack B.
[17] White
{18] Red
{19] Connecting wires with RCA pin plugs
{sold separately)
[21] RCA output pin jacks
[24] Speaker out B: Speaker (right)
[25] Speaker out B: Speaker (left)
[26] Speaker out A: Speaker (left)
[27] Speaker out A: Speaker (right)
[28] Black cover
[29] Black stripe
[30] Green cover
[31] Green stripe
[32] To RCA input pin jacks
[33] RCA input pin jack A
[34] RCA input pin jack B
* Connect the front or rear output pin plugs
to jacks {33] or [34], according to your
system.
{35} tf only one input pin plug is used, do not
connect anything to RCA input jack B.
Three-channel mode (Fig. 16)
[2]
RCA Input Seiect Switch
For two-channel input, slide this switch
to the left. For four-channel input, slide
this switch to the right.
[16] Output (Front/Rear)
If only one input pin plug is used, do not
connect anything to RCA input jack B.
[17] White
[18] Red
{19] Connecting wires with RCA pin plugs
(sold separately)
[24] Speaker out B: Speaker (right)
[25] Speaker out B: Speaker (left)
[28] Black cover
[29] Black stripe
{30] Green cover
{31} Green stripe
[32] To RCA input pin jacks
[33] RCA input pin jack A
[34] RCA input pin jack B
* Connect the front or rear output pin plugs
to jacks (33) or [34], according to your
system.
(35) If only one input pin plug is used, do not
connect anything to RCA input jack B.
[36] No connection
[37] Speaker out A: Speaker (mono)
(36)
(17)
119}
(16)
Fig. 17
(321 (47
(18]
U7]
\
119]
128]
116)
Fig. 18
20
Two-channel mode (stereo) (Fig. 17)
{2] RCA Input Select Switch
Slide this switch to the left.
[16] Output
(17} White
[18] Red
[19] Connecting wires with RCA pin plugs
(sold separately)
[21] RCA output pin jacks
[28] Black cover
[29] Black stripe
[30] Green cover
[31] Green stripe
[32] To RCA input pin jacks
[33] RCA input pin jack A
[36] No connection
[38] Speaker (right)
[39] Speaker (left)
Two-channel mode (mono) (Fig. 18)
[2]
RCA Input Select Switch
Slide this switch to the left.
{16} Output
[17] White
[18] Red
{19} Connecting wires with RCA pin plugs
(sold separately)
{21} RCA output pin jacks
(28] Black cover
{29] Black stripe
{30] Green cover
[31] Green stripe
[32] To RCA input pin jacks
{33] RCA input pin jack A
[36] No connection
[40] Speaker (mono)
Installation
"\ CAUTION
* Do not install in:
— Places where it could injure the driver
or passengers if the vehicle stops
suddenly.
— Places where it may interfere with the
driver, such as on the floor in front o!
the driver's seat.
Make sure that wires are not caught in he
sliding mechanism of the seats, resulting
in @ short-circuit.
Confirm that no parts are behind the
panel when drilling a hole for installation
of the amplifier. Protect all cables and
important equipment such as fuel lines,
brake lines and the electrical wiring fron
damage.
Install tapping screws in such a way tha
the screw tip does not touch any wire.
This is important to prevent wires from
being cut by vibration of the car, which
can result in fire.
To ensure proper installation, use the
supplied parts in the manner specified. f
any parts other than the supplied ones
are used, they may damage internal pats
of the amplifier, or they may become
loose and the amplifier may shut down,

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