Instruction/ maintenance manual of the product GM-X372 Pioneer
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PIONEER CORPORA TION 4-1, Meguro 1-Chome, Meguro-ku, T okyo 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.
2 1 234 12 34 F E D C B A GM-X372/XH/UC [ Important symbols for good services ] In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them: 2.
3 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC 1. SPECIFICA TIONS CONTENTS SAFETY INFORMA TION ............................................2 1. SPECIFICA TIONS ........................................................3 2. EXPLODED VIEWS AND P ARTS LIST ..
4 1 234 12 34 F E D C B A GM-X372/XH/UC 2. EXPLODED VIEWS AND P ARTS LIST 2.1 P ACKING http://www.xiaoyu163.com http://www.xiaoyu163.com.
5 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC 1 Cord HDE0044 2 Screw Assy HEA0058 3 Screw BYC40P180FZK 4 Polyethylene Bag HEG0011 5 Cover HNS0101 6 Polyethylene Bag HEG0013 7 Carton HHG0341 8 Contain Bo.
6 1 234 12 34 F E D C B A GM-X372/XH/UC 2.2 EXTERIOR http://www.xiaoyu163.com http://www.xiaoyu163.com.
7 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC 1 Screw BBZ30P060FZK 2 Screw BBZ30P110FZK 3 Chassis HNA0015 4 Panel HNB0187 5 Panel HNB0191 6 Case HNB0196 7 Spacer HNM0124 8 Heat Sink HNR0236 9 Amp Unit(U.
8 1 234 12 34 F E D C B A GM-X372/XH/UC HCS0003 HCS0003 75 µ H EW, ES ONLY EW, ES ONLY GAIN = 1 GAIN = -12dB 75 µ H LPF SELECT LPF SELECT A AMP UNIT A-a A-a A-b A-a A-b A-b A-a Large size SCH diagram Guide page Detailed page UC ONLY UC ONLY 3. SCHEMA TIC DIAGRAM 3.
9 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC HCS0003 HCS0003 10k Ω (A) 10k Ω (A) > HEK0025 RM4Z-LFJ4 Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022 ← ← The > mark found on some component parts indicates the importance of the safety factor of the part.
10 1 234 12 34 F E D C B A GM-X372/XH/UC 12 HCS0003 HCS0003 10k Ω (A) 10k Ω (A) GAIN = 1 GAIN = -12dB LPF SELECT LPF SELECT A AMP UNIT A-a A-b A-a http://www.
11 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC 34 75 µ H EW, ES ONLY EW, ES ONLY 75 µ H UC ONLY UC ONLY A-a A-b A-a http://www.xiaoyu163.com http://www.
12 1 234 12 34 F E D C B A GM-X372/XH/UC 12 HCS0003 HCS0003 10k Ω (A) 10k Ω (A) Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022 ← ← The > mark found on some component parts indicates the importance of the safety factor of the part.
13 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC 34 > HEK0025 The > mark found on some component parts indicates the importance of the safety factor of the part.
14 1 234 12 34 F E D C B A GM-X372/XH/UC 4. PCB CONNECTION DIAGRAM 4.1 AMP UNIT Capacitor Connector P.C.Board Chip Part A A AMP UNIT SIDE B SIDE A NOTE FOR PCB DIAGRAMS 1.The parts mounted on this PCB include all necessary parts for several destination.
15 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC A SIDE A 23 1 21 2 INPUT GAIN LPF SELECT BFC SPEAKER OUTPUT POWER SUPPLY A http://www.xiaoyu163.com http://www.
16 1 234 12 34 F E D C B A GM-X372/XH/UC A A AMP UNIT 1 1 A http://www.xiaoyu163.com http://www.xiaoyu163.com.
17 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC A SIDE B 1 1 A http://www.xiaoyu163.com http://www.xiaoyu163.com.
18 1 234 12 34 F E D C B A GM-X372/XH/UC 5. ELECTRICAL P ARTS LIST NOTES: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/ _ S ___ J,RS1/ __ S ___ J Chip Capacitor (except for CQS.
19 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC R 623 (EW, ES) RD1/4PU105J R 625 RD1/4PU332J R 626 RD1/4PU332J R 627 RS1/16S472J R 628 RS1/16S472J R 631 RD1/4PU272J R 632 RS1/16S472J R 635 RS1/2PMF121J R.
20 1 234 12 34 F E D C B A GM-X372/XH/UC 7. GENERAL INFORMA TION 7.1 DIAGNOSIS 7.1.1 DISASSEMBL Y 1 Fig.1 - Removing the Amp Unit (Fig.1) Remove the eight screws. 1. Remove the eight screws and then remove the Case. - Removing the Case (not shown) 3 4 4 1 Amp Unit 2 Remove the screw and then remove the two Panels.
21 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC 7.1.2 CONNECTOR FUNCTION DESCRIPTION BRIDGEABLE 2-CH POWER AMPLIFIER BRIDGED - GM-X372/XH/UC 6.5V 0.2V 25 http://www.
22 1 234 12 34 F E D C B A GM-X372/XH/UC *TDA7294V IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.
23 5 6 7 8 F E D C B A 5 6 7 8 GM-X372/XH/UC 8. OPERA TIONS LPF (Low-Pass Filter) Select Switch Set the LPF select switch as follows according to the type of speaker that is connected to the speaker o.
24 1 234 12 34 F E D C B A GM-X372/XH/UC Connection Diagram Fuse (30 A) Grommet Special red battery wire [RD-223] (sold separately) After making all other connections at the amplifier , connect the battery wire terminal of the amplifier to the positive (+) terminal of the battery .
An important point after buying a device Pioneer GM-X372 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Pioneer GM-X372 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Pioneer GM-X372 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Pioneer GM-X372 you will learn all the available features of the product, as well as information on its operation. The information that you get Pioneer GM-X372 will certainly help you make a decision on the purchase.
If you already are a holder of Pioneer GM-X372, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Pioneer GM-X372.
However, one of the most important roles played by the user manual is to help in solving problems with Pioneer GM-X372. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Pioneer GM-X372 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
