PIONEER GM 5400T Service Manual
GM-5400T/XJ/UC
BRIDGEABLE TWO-CHANNEL POWER AMPLIFIER
ORDER NO.
CRT4251
GM-5400T
GM-5400T
GM-5400T
/XJ/EW5
/XJ/ES
/XJ/UC
For details, refer to "Important Check Points for Good Servicing".
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2008
K-ZZZ. NOV. 2008 Printed in Japan
1234
SAFETY INFORMATION
CAUTION
A
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 safety 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 safety, you should not risk trying to do so
and refer the repair to a qualified service technician.
WARNING
This product contains certain electrical parts contain chemicals which are known to the State of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65
B
Where in a manufacturer’s service documentation, for example in circuit diagrams or lists
of components, a symbol is used to indicate that a specific component shall be replaced only
by the component specified in that documentation for safety reasons, the following symbol shall
be used:
C
D
E
F
2
1234
GM-5400T/XJ/UC
5 678
[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.
a Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
A
B
C
D
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.
56
GM-5400T/XJ/UC
E
F
7
8
3
1234
CONTENTS
SAFETY INFORMATION..................................................................................................................................... 2
1. SERVICE PRECAUTIONS............................................................................................................................... 5
A
B
1.1 SERVICE PRECAUTIONS ........................................................................................................................ 5
1.2 NOTES ON SOLDERING .......................................................................................................................... 5
2. SPECIFICATIONS............................................................................................................................................ 6
2.1 SPECIFICATIONS ..................................................................................................................................... 6
2.2 PANEL FACILITIES.................................................................................................................................... 8
2.3 CONNECTION DIAGRAM ......................................................................................................................... 9
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 10
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 10
4. BLOCK DIAGRAM.......................................................................................................................................... 10
5. DIAGNOSIS.................................................................................................................................................... 10
5.1 CONNECTOR FUNCTION DESCRIPTION............................................................................................. 10
6. SERVICE MODE ............................................................................................................................................ 10
7. DISASSEMBLY ...............................................................................................................................................11
8. EACH SETTING AND ADJUSTMENT ............................................................................................................11
9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 12
9.1 PACKING ................................................................................................................................................. 12
9.2 EXTERIOR............................................................................................................................................... 14
10. SCHEMATIC DIAGRAM............................................................................................................................... 16
10.1 AMP UNIT(GUIDE PAGE) ..................................................................................................................... 16
11. PCB CONNECTION DIAGRAM.................................................................................................................... 22
11.1 AMP UNIT .............................................................................................................................................. 22
12. ELECTRICAL PARTS LIST.......................................................................................................................... 26
C
D
E
F
4
1234
GM-5400T/XJ/UC
5 678
1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
1. You should conform to the regulations governing the product (safety, radio and noise, and other
regulations), and should keep the safety during servicing by following the safety instructions
described in this manual.
2. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by
electrostatic induction.
A
B
1.2 NOTES ON SOLDERING
For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.
Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.
C
D
E
56
GM-5400T/XJ/UC
F
7
8
5
1234
2. SPECIFICATIONS
2.1 SPECIFICATIONS
A
GM-5400T/XJ/UC
Power source..........................14.4 V DC (10.8 V to 15.1 V
allowable)
Grounding system................ Negative type
Current consumption .......... 30 A (at continuous power,
4 ? )
B
C
D
E
Average current drawn....... 10 A (4
19 A (4
Fuse ......................................... 30 A × 2
Backup current ..................... 0.03 mA or less
Dimensions (W × H × D) ... 265 mm × 62 mm × 346
mm
(10-3/8 in. ×2-1/2 in. × 1 ft.
2 in.)
Weight ..................................... 3.8 kg (Leads for wiring not
included)
Maximum power output ...... 250 W × 2 (4
(4
Continuous power output .. 125 W × 2 (at 14.4 V, 4
Hz to 20 kHz 0.2% THD)
380 W × 1 (at 14.4 V, 4
Hz to 20 kHz 0.8% THD)
190 W × 2 (at 14.4 V, 2
Hz to 20 kHz 0.8% THD)
Load impedance ................... 4
(Bridge connection: 4
Frequency response............ 10 Hz to 50 kHz (+0 dB, –1
dB)
Signal-to-noise ratio............. 95 dB (IHF-A network)
Distortion .................................0.03 % (10 W, 1 kHz)
Separation .............................. 70 dB (1 kHz)
Low pass filter:
Cut off frequency.......... 80 Hz
Cut off slope...................–12 dB/oct
Bass boost:
Frequency....................... 50 Hz
Level................................. 0 dB/6 dB/12 dB
Gain control:
RCA ................................. 200 mV to 6.5 V
Speaker ........................... 0.8 V to 26 V
Maximum input level / impedance:
RCA ................................. 6.5 V / 22 k
Speaker ........................... 26 V / 90 k
for two channels)
for one channel)
)/760W×1
)
,20
(2 to 8 allowable)
to 8
allowable)
,20
,20
CEA2006 Specifications
Power output ......................... 125 W RMS × 2 Channels
(at 14.4 V, 4
THD+N)
380 W RMS × 1 Channels
(at 14.4 V, 4
1 % THD+N)
190 W RMS × 2 Channels
(at 14.4 V, 2
THD+N)
S/N ratio .................................. 75 dBA (reference: 1 W into
4
)
and 1%
BRIDGE and
and 1%
Notes
• Specifications and the design are subject to
modifications without notice due to improvements.
• The average current drawn is nearly the maximum current drawn by this unit when an
audio signal is input. Use this value when
working out total current drawn by multiple
power amplifiers.
F
6
1234
GM-5400T/XJ/UC
5 678
GM-5400T/XJ/EW5, GM-5400T/XJ/ES
Power source..........................14.4 V DC (10.8 V to 15.1 V
allowable)
Grounding system................. Negative type
Current consumption .......... 30 A (at continuous power,
4
)
Average current drawn....... 10 A (4
19 A (4
Fuse ........................................ 30 A × 2
Backup current ..................... 0.03 mA or less
Dimensions (W × H × D) ... 265 mm × 62 mm × 346
mm
Weight ..................................... 3.8 kg(Leads for wiring not
included)
Maximum power output ...... 250 W × 2 (4
(4
Continuous power output .. 125 W × 2 (at 14.4 V, 4
Hz to 20 kHz 0.2% THD)
380 W × 1 (at 14.4 V, 4
Hz to 20 kHz 0.8% THD)
190 W × 2 (at 14.4 V, 2
Hz to 20 kHz 0.8% THD)
Load impedance ................... 4
(Bridge connection: 4
Frequency response............ 10 Hz to 50 kHz (+0 dB, –1
dB)
Signal-to-noise ratio............. 95 dB (IEC -A network)
Distortion .................................0.03 % (10 W, 1 kHz)
Separation .............................. 70 dB (1 kHz)
Low pass filter:
Cut off frequency.......... 80 Hz
Cut off slope...................–12 dB/oct
Bass boost:
Frequency...................... 50 Hz
Level................................ 0 dB/6 dB/12 dB
Gain control:
RCA ................................. 200 mV to 6.5 V
Speaker ........................... 0.8 V to 26 V
Maximum input level / impedance:
RCA ................................. 6.5 V / 22 k
Speaker ........................... 26 V / 90 k
Notes
• Specifications and the design are subject to
modifications without notice due to improvements.
• The average current drawn is nearly the maxi-
mum current drawn by this unit when an
audio signal is input. Use this value when
for two channels)
for one channel)
) / 760 W × 1
)
(2 to 8 allowable)
to 8
allowable)
,20
,20
,20
A
working out total current drawn by multiple
power amplifiers.
B
C
D
E
56
GM-5400T/XJ/UC
F
7
8
7
1234
2.2 PANEL FACILITIES
A
What ’s what
NORMAL position. For use with an RCA
equipped Pioneer car stereo, with max.
Front side
output of 4 V or more, adjust level to
match that of the car stereo output.
• If you hear too much noise when using
the speaker input terminals, turn the
gain control to higher level.
5 LPF (low-pass filter) switch
B
Rear side
(EW5, ES)
Switch the settings based on the connected
speaker.
• When the Subwoofer is connected:
Select ON . This eliminates high range
frequency and outputs low range frequency.
• When the full range speaker is connected:
Select OFF. OFF outputs the entire fre-
To adjust the switch, use a flathead screwdri-
C
ver if needed.
quency range.
1 Power indicator
The power indicator lights up to indicate
power ON.
(EW5, ES)
2 BFC (beat frequency control) switch
Located front side the unit. If beats are audible while listening to MW/LW broadcasts via
car stereo, change the BFC switch using a
D
small flathead screwdriver.
3 BASS BOOST (bass boost level control)
switch
You can select a bass boost level from 0 dB,
6 dB and 12 dB.
4 GAIN (gain) control
If output remains low, even when the car
E
stereo volume is turned up, turn controls to
lower level. If distortion occurs when the car
stereo volume is turned up, turn these controls to higher level.
• For use with an RCA equipped car stereo
(standard output of 500 mV), set to the
F
8
1234
GM-5400T/XJ/UC
5 678
2.3 CONNECTION DIAGRAM
8 System remote control wire (sold separately)
Connect male terminal of this wire to the system remote control terminal of the car stereo
(SYSTEM REMOTE CONTROL ). The female
terminal can be connected to the auto-antenna relay control terminal. If the car stereo
lacks a system remote control terminal, connect the male terminal to the power terminal
via the ignition switch.
9 Speaker output terminals
a Fuse (30 A) × 2
b Fuse (30 A) × 2
c Grommet
d Rear side
e Front side
A
B
C
1 Special red battery wire
RD-223 (sold separately)
After completing all other amplifier connections, finally connect the battery wire terminal
of the amplifier to the positive (
) battery
terminal.
2 Ground wire (Black)
RD-223 (sold separately)
Connect to metal body or chassis.
3 Car stereo with RCA output jacks (sold sepa-
rately)
4 External output
If only one input plug is used, do not connect
anything to RCA input jack B.
(ES)
5 Connecting wire with RCA pin plugs (sold se-
parately)
6 Speaker input terminal
7 RCA input jack
D
E
56
GM-5400T/XJ/UC
F
7
8
9
Loading...