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Service Manual
5 CHANNEL POWER AMPLIFIER
ORDER NO.
GM-D505/XH/EW
CRT3076
GM-D505 GM-D505
XH/ES, XR/ES
XH/EW, XR/EW
For details, refer to "Important symbols for good services".
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
C PIONEER CORPORATION 2003
K-ZZB. MAY 2003 Printed in Japan
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A
[ 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:
1. Product safety
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. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.
B
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
5. Lubricants, glues, and replacement parts
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Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.
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SAFETY INFORMATION
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.
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GM-D505/XH/EW
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CONTENTS
1. 2. SAFETY INFORMATION............................................2 SPECIFICATIONS .......................................................3 EXPLODED VIEWS AND PARTS LIST ......................4 2.1 PACKING..............................................................4 2.2 EXTERIOR ............................................................6 SCHEMATIC DIAGRAM.............................................8 3.1 SCHEMATIC DIAGRAM(GUIDE PAGE) ..............8 PCB CONNECTION DIAGRAM................................16 4.1 AMP UNIT..........................................................16 4.2 NETWORK PCB .................................................20 4.3 CONNECTOR PCB .............................................20 5. ELECTRICAL PARTS LIST........................................21 6. ADJUSTMENT .........................................................25 7. GENERAL INFORMATION.......................................26 7.1 DIAGNOSIS .......................................................26 7.1.1 DISASSEMBLY.........................................26 7.1.2 CONNECTOR FUNCTION DESCRIPTION ......27 7.2 IC ........................................................................28 7.3 CIRCUIT DESCRIPTIONS ..................................29 8. OPERATIONS ...........................................................30
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3. 4.
B
1. SPECIFICATIONS
Power source............................................................................................................ 14.4 V DC (10.8 -- 15.1 V allowable) Backup current ................................................................................................................................................ 3 mA or less Grounding system .......................................................................................................................................... Negative type Current consumption .................................................................................................... 43.8 A (at continuous power, 4 ) Average current drawn* ...................................................................................................... 10.9 A (4 for five channels) Fuse ........................................................................................................................................................................ 25 A × 3 Dimensions ...................................................................................................................... 350 (W) × 52 (H) × 268 (D) mm Weight .................................................................................................................... 3.9 kg (Leads for wiring not included) Maximum power output .................................................................................................... Channel A/B: 100 W × 4 (4 ) Channel SUB: 300 W × 1 (4 ) / 600 W × 1 (2 ) Continuous power output ............................................................................................ 65 W × 4 (4 ) + 225 W × 1 (4 ) (56 W × 4 (4 ) + 350 W × 1 (2 )) (DIN45324, +B=14.4 V) Load impedance .................................................................................................... 4 (Channel A/B: 4 -- 8 allowable) (Channel SUB: 2 -- 8 allowable) Frequency response .................................................................................. Channel A/B: 10 -- 40,000 Hz (+0 dB, 1 dB) Channel SUB: 5 -- 240 Hz (+0.5 dB, 3 dB) Signal-to-noise ratio ...................................................................................................................... 95 dB (IEC-A network) Distortion .................................................................................................................... Channel A/B: 0.01% (10 W, 1 kHz) Channel SUB: 0.03% (10 W, 120 Hz) Low pass filter (Channel SUB) ........................................................................................ Cut off frequency: 40 -- 240 Hz Cut off slope: 12 dB/oct High pass filter (Channel A/B) ........................................................................................ Cut off frequency: 40 -- 240 Hz Cut off slope: 12 dB/oct Bass level control (Channel SUB) .............................................................................................................. 22 -- +12 dB (125 mV -- 6.5 V) Level/gain control (Channel A/B) ............................................................................................................ 200 mV -- 6.5 V Maximum input level/impedance .......................................................................................................... RCA: 6.5 V/22 k
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Note:
· Specifications and the design are subject to possible modification without notice due to improvements.
*Average current drawn
· 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.
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GM-D505/XH/EW
3 7 8
5
6
1
2
3
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A
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
B
C
D
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F
4 1 2
GM-D505/XH/EW
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4
5
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NOTE:
- Parts marked by "*" are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to mark on the product are used for disassembly. - For the applying amount of lubricants or glue, follow the instructions in this manual. ( In the case of no amount instructions, apply as you think it appropriate.)
A
- PACKING SECTION PARTS LIST
GM-D505/XH/EW GM-D505/XR/EW HEA0063 BYC40P180FZK HEG0011 HEG0022 HHG0359 HHL0359 HHP0180 HRD0231 Not used HRY1157 HTX0003 HEG0025 HNV0025 Part No. GM-D505/XH/ES GM-D505/XR/ES HEA0063 BYC40P180FZK HEG0011 HEG0022 HHG0359 HHL0359 HHP0180 HRD0232 HRD0233 Not used HTX0003 HEG0025 HNV0025
Mark No. 1 2 3 4 5 6 7 8-1 8-2 8-3
Description Screw Assy Screw Polyethylene Bag Polyethylene Bag Carton Contain Box Protector Owner's Manual Owner's Manual Warranty Card
B
*
* *
9 Core 10 Polyethylene Bag 11 Lock Tie
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- Owner's Manual
Part No. HRD0231 HRD0232 HRD0233 Language English, Spanish, German, French, Italian, Dutch English, Spanish Arabic, Portuguese
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GM-D505/XH/EW
5 7 8
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6
1
2
3
4
A
2.2 EXTERIOR
B
C
B
A
D
C
E
F
6 1 2
GM-D505/XH/EW
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4
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- EXTERIOR SECTION PARTS LIST
Mark No. Description 1 2 3 4 5 6 7 8 9 10 Screw Screw Plate Unit Case Lighting Conductor Lighting Conductor Lighting Conductor Lighting Conductor Insulator Insulator Part No. BBZ30P060FMC BBZ30P080FMC HXA0395 HNB0204 HNC0128 HNC0129 HNC0130 HNC0139 HNM0112 HNM0144 HNR0240 HNV0051 HWH0213 HWH0214 BBZ30P050FZK BBZ30P060SAD BBZ30P080FMC BBZ30P100SAD BSZ30P160FMC CKF1059 CKF1059 CKF1059 CNM6825 HEK0025 HKB0022 HKB0024 HKE0045 HKE0050 HKE0051 HKS0005 HNC0054 HNC0143 HNC0144 HNM0006 HNM0125 HNM0126 HNR0124 HNR0201 HNR0202 HNR0203 PPZ30P120FZK VBZ30P110FZK HWG0030 HKS0004 HNC0054 PBB30P140FMC PPZ30P120FZK HXA0383 TDA7294V IRF5305 IRFZ44E 2SD2395 2SB1566 CCX1013 FML22R * Mark No. Description 55 56 57 58 59 60 61 62 63 64 Part No. Diode(D611) FML22S FET(Q610-617) STP75NF75 LED(D910) DB3804X Variable Resistor(VR201,231) CCS1265 Variable Resistor(VR131) CCS1266 Beads Core HTF0003 Badge Unit HXA0380 Beads Core HTF0001 Variable Resistor(VR101,151) CCS1266 Variable Resistor(VR251) CCS1265
A
B
11 Heat Sink 12 Holder 13 Amp Unit(EW) Amp Unit(ES) 14 Screw 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 Screw Screw Screw Screw Terminal(CN605) Terminal(CN606) Terminal(CN607) Cushion Fuse(25A)(FU601-603) Pin Jack(CN801) Pin Jack(CN802) Terminal(CN804) Terminal(CN803) Terminal(CN601) Connector(CN103) Clip Holder Holder Spacer Insulator Insulator Bar Heat Sink Heat Sink Heat Sink Screw Screw Network Unit Connector(CN102) Clip Screw Screw Light Pipe Unit IC(IC501,502,551,552) FET(Q401,402) FET(Q403,404) Transistor(Q622) Transistor(Q623) Thermistor(TH601,602) Diode(D610)
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GM-D505/XH/EW
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3. SCHEMATIC DIAGRAM
3.1 SCHEMATIC DIAGRAM (GUIDE PAGE)
A
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".
A-a
B
NETWORK PCB(1/2)
A HPF SWITCH
A Freq
A Freq
10K(A)
B
B Freq
20K(E)
B Freq
A Gain
A Gain
B HPF SWITCH
B Freq
C
Sub Gain
B Freq
Sub Freq
Sub Freq
D
B
NETWORK PCB(2/2)
A-a
A-b
Large size SCH diagram
Sub Gain
10K(A)
B Gain
B Gain
BFC SWITCH
E
A-a
A-b
Guide page
1
A-a
A-b
Detailed page
2
1
F
A B
8 1 2
GM-D505/XH/EW
3
100K(B)
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5
6
7
8
A-b
A
AMP UNIT
A
B
2 2
3
C
SL+ SR+
3
D
HEK0025
>
HEK0025
>
HEK0025
NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022
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>
The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.
C CONNECTOR PCB
GM-D505/XH/EW
NETWORK UNIT Consists of NETWORK PCB CONNECTOR PCB
F
A C
9 7 8 5 6
D
C
E
B
A
F
10
A-a A-b
A-b
A Freq
10K(B)
A Gain
A-a B
A Freq
A Gain
B Freq
B Gain
B Freq
B Freq
B Gain
Sub Gain
10K(B)
Sub Gain
1
1
B
NETWORK PCB(1/2)
A HPF SWITCH
2
2
1
B Freq
20K(E)
GM-D505/XH/EW
Sub Freq Sub Freq
B HPF SWITCH
3
3
4
4
2
B
NETWORK PCB(2/2)
5
Sub Gain
Sub Freq
1
100K(B)
5
3 4
6
6
BFC SWITCH
5
1
GM-D505/XH/EW
A-a A-b
2
7
7
6
A-b C
A-a B
D E
8
8
11
B
A
C
F
1
2
3
4
A
B
C
A
AMP UNIT
A-a A-b
D
E
F
A-b
12 1 2
1
GM-D505/XH/EW
2
2
3
2
3 4
SL+ SR+
3
5
5
HEK0025
3
6
>
HEK0025
4
>
HEK0025
6
>
5
NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022
GM-D505/XH/EW
A-a A-b
7
7
6
The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.
C CONNECTOR PCB
NETWORK UNIT Consists of NETWORK PCB CONNECTOR PCB
A-b C
D E
8
8
13
B
A
C
F
1
2
3
4
A
Note: The encircled numbers denote measuring pointes in the circuit diagram.
- Waveforms
1 Power supply switching waveform measured at TP638 and TP639.
B
C
2 BRem TP624, Stand-by line TP253, Mute line TP254 timing diagram.
D
3 Class D switching audio waveform at no signal {TP413 and / or TP414} same waveform on both test points.
E
F
14 1 2
GM-D505/XH/EW
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B
C
D
E
F
GM-D505/XH/EW
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4. PCB CONNECTION DIAGRAM
A
4.1 AMP UNIT
NOTE FOR PCB DIAGRAMS
1.The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram. 2.Viewpoint of PCB diagrams
A
AMP UNIT
Connector
Capacitor
B
SIDE A
P.C.Board
Chip Part
SIDE B
C
D
B
CN102
E
BFC
F
A
16 1 2
GM-D505/XH/EW
3
4
5
6
7
8
A
SIDE A
B
C
D
E
SL+
SR+
ALBL-
AL+ BL+
ARBR-
AR+ BR+
F
C
CN703
GM-D505/XH/EW
C
CN702
7
C
CN701
8
A
17
5
6
1
2
3
4
A
A
AMP UNIT
B
C
TP638
TP639
TP624
D
E
AR+ BR+
ARBR-
AL+ BL+
ALBL-
SR+
F
A
18 1 2
GM-D505/XH/EW
3
4
5
6
7
8
A
SIDE B
B
TP414
C
TP413
TP253 TP254
D
E
SR+
SL+
F
A
GM-D505/XH/EW
19 7 8
5
6
1
2
3
4
A
4.2 NETWORK PCB
B
B
NETWORK PCB
SIDE A
B
NETWORK PCB
SIDE B
C
A
D
CN103
4.3 CONNECTOR PCB
C
CONNECTOR PCB
SIDE A
C
CONNECTOR PCB
SIDE B
E
A
A
A
F
B C
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5. ELECTRICAL PARTS LIST
NOTE:
- 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.....) CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------Part No. ------------------------=====Circuit Symbol and No.===Part Name --- ----------------------------------------------Q Q Q Q Q NJM2068MD NJM2068MD NJM2068MD NJM2068MD TDA7570 TDA7294V TDA7294V TDA7294V TDA7294V PA2027A UPC494C NJM2068D NJM2068D NJM2068MD NJM2068D NJM2068D NJM2068D NJM2068D KSR2102 KSC1623 IRF5305 IRF5305 IRFZ44E IRFZ44E KSC1623 KSA812 2SB1243 KSR2102 2SD1919 2SD1919 2SB1277 2SB1277 STP75NF75 STP75NF75 STP75NF75 STP75NF75 STP75NF75 STP75NF75 STP75NF75 STP75NF75 KSA812 KSA812 KSC1623 KSC1623 2SD2395 Q D D D D D D D D D D D D D D D D D D D D D D D D L L L L L L L L L L L L L L T TH TH TH TH S 623 905 906 907 908 909 201 202 301 302 303 304 601 602 603 604 606 607 608 609 610 611 612 613 614 615 616 617 901 910 401 402 403 404 405 601 602 603 801 802 831 832 851 852 601 601 602 603 604 151 Transistor Transistor Transistor Transistor Transistor Transistor Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode LED Choke Coil 1.0µH Choke Coil 1.0µH Choke Coil 42µH Choke Coil 1.0µH Choke Coil 1.0µH Choke Coil 34µH Choke Coil 75µH Choke Coil 75µH Ferri-Inductor Ferri-Inductor Ferri-Inductor Ferri-Inductor Ferri-Inductor Ferri-Inductor Transformer Thermistor Thermistor Thermistor Thermistor Switch (B HPF) Part No. ------------------------2SB1566 KSA812 KSC1623 KSC1623 KSC1623 KSA812 1SS133 1SS133 HZS7L(B2) HZS7L(B2) HZS7L(B2) HZS7L(B2) RM4Z-LFJ4 HZS7L(B2) 1SS133 RM4Z-LFJ4 1SS133 1SS133 1SS133 1SS133 FML22R FML22S HZS16L(1) HZS16L(1) ERA15-02VH ERA15-02VH 1SS133 1SS133 1SS133 DB3804X HTH0012 HTH0012 HTH0003 HTH0012 HTH0012 HTH0006 HTH0010 HTH0010 CTF1007 CTF1007 CTF1007 CTF1007 CTF1007 CTF1007 HTT0016 CCX1013 CCX1013 HCX0001 HCX0001 HSH0004
A
B
A
IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q
Unit Number : HWH0213(EW) Unit Number : HWH0214(ES) Unit Name : Amp Unit
101 151 301 351 401 501 502 551 552 601 602 801 802 803 831 832 851 852 201 202 401 402 403 404 601 602 603 604 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC Transistor Transistor FET FET FET FET Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor FET FET FET FET FET FET FET FET Transistor Transistor Transistor Transistor Transistor
MISCELLANEOUS
C
D
E
F
GM-D505/XH/EW
21 7 8
5
6
1
2
3
4
A
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------S VR VR VR VR FU FU FU 601 101 151 251 601 601 602 603
Part No. -------------------------
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 433 451 452 453 454 455 456 457 458 459 461 462 465 501 502 503 504 505 506 509 510 511 512 513 514 551 552 553 554 555 556 559 560 561 562 563 564 601 602 603 604 605 606 607 608 6.80
Part No. ------------------------RS1/16S101J RS1/16S101J RS1/16S153J RS1/16S153J RD1/4PU560J RD1/4PU560J RD1/4PU270J RD1/4PU270J RD1/4PU220J RD1/4PU220J RD1/4PU240J RD1/4PU240J RS1/16S474J RS1/16S474J RS1/16S472J RS1/16S472J RS1/16S101J RS1/16S101J RS1/16S153J RS1/16S153J HCN0002 RS1/16S103J RS1/16S103J RS1/16S103J RS1/16S103J RS1/16S101J HCN0003 HCN0003 HCN0003 HCN0003 RS1/2PMF102J RS1/2PMF102J RS1/2PMF220J RS1/16S223J RS1/16S223J RS1/16S911J RS1/16S911J RD1/4PU223J RD1/4PU223J RS1/2PMF100J RS1/2PMF100J RS1/16S152J RS1/16S152J RS1/16S152J RS1/16S152J RS1/16S223J RS1/16S223J RS1/16S911J RS1/16S911J RD1/4PU223J RD1/4PU223J RS1/2PMF100J RS1/2PMF100J RS1/16S152J RS1/16S152J RS1/16S152J RS1/16S152J RD1/4PU102J RD1/4PU473J RD1/4PU103J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU472J RD1/4PU472J
Switch (BFC) HSH-156 Variable Resistor 20k(E)(Sub Freq) CCS1266 Variable Resistor 20k(E)(B Freq) CCS1266 Variable Resistor 10k(A)(A Freq) CCS1265 Semi-fixed 100k(B) RH063MC15R Fuse(25A) Fuse(25A) Fuse(25A) HEK0025 HEK0025 HEK0025
RESISTORS
R R R R R R R R R R R R R R R 101 102 103 104 151 152 153 154 155 156 157 158 159 160 161 162 163 164 206 209 210 211 212 213 214 215 216 251 252 253 254 301 302 303 304 305 306 307 308 309 310 351 352 353 354 401 402 403 404 405 406 407 408 409 410 RS1/16S682J RS1/16S682J RS1/16S202J RS1/16S202J RS1/16S822J RS1/16S822J RS1/16S432J RS1/16S432J RS1/16S103J RS1/16S103J RS1/16S432J RS1/16S432J RS1/16S102J RS1/16S102J RS1/16S242J RS1/16S242J RS1/16S102J RS1/16S102J RS1/16S472J RD1/4PU102J RD1/4PU202J RD1/4PU223J RD1/4PU103J RD1/4PU303J RD1/4PU223J RD1/4PU103J RD1/4PU333J RS1/16S222J RS1/16S222J RS1/16S560J RS1/16S560J RN1/10SE6202D RN1/10SE6202D RN1/10SE1001D RN1/10SE1001D RN1/10SE2402D RN1/10SE2402D RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RN1/10SE2201D RS1/16S103J RS1/16S103J RS1/16S222J RS1/16S222J RD1/4PU102J RD1/4PU102J RD1/4PU102J RD1/4PU102J RD1/4PU512J RD1/4PU512J RS1/16S474J RS1/16S474J RS1/16S472J RS1/16S472J
B
C
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
0.01 0.01 0.01 0.01
D
E
F
22 1 2
GM-D505/XH/EW
3
4
5
6
7
8
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 609 610 611 612 613 614 615 616 619 620 621 622 623 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 645 646 647 648 649 650 654 655 656 657 658 659 660 661 662 663 664 665 666 667 801 802 803 804 805 806 807 808 809 810 811 812 813
Part No. ------------------------RD1/4PU472J RD1/4PU103J RD1/4PU472J RD1/4PU101J RD1/4PU221J RD1/4PU102J RD1/4PU104J RS1/16S101J RS1/16S202J RS1/16S103J RS1/16S102J RS1/16S153J RS1/16S105J RD1/4PU332J RD1/4PU332J RS1/16S472J RS1/16S472J RD1/4PU272J RD1/4PU272J RD1/4PU272J RS1/16S472J RS1/2PMF560J RS1/2PMF560J RS1/2PMF560J RS1/2PMF560J RS1/2PMF560J RS1/2PMF560J RS1/2PMF560J RS1/2PMF560J RD1/4PU472J RD1/4PU472J RS1/2PMF220J RS1/2PMF100J RS1/2PMF100J RD1/4PU472J RD1/4PU472J RS1/2PMF220J RS1/16S102J RD1/4PU223J RD1/4PU223J RD1/4PU223J RS1/16S124J RS1/16S472J RS1/16S472J RS1/16S123J RS1/16S182J RS1/16S223J RS1/16S182J RS1/16S153J RS1/2PMF100J RS1/2PMF100J RS1/16S272J RS1/16S471J RS1/16S471J RS1/16S223J RS1/16S223J RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RS1/16S562J
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 814 815 816 817 818 819 820 831 832 833 834 835 836 837 838 839 840 841 842 851 852 853 854 855 856 857 858 859 860 861 862 901 902 903 904 905 906 917 918 919 920 921 922 923 924 930 931
Part No. ------------------------RS1/16S562J RS1/16S562J RS1/16S562J RS1/16S511J RS1/16S511J RS1/16S514J RS1/16S514J RS1/16S471J RS1/16S471J RS1/16S223J RS1/16S223J RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RS1/16S471J RS1/16S471J RS1/16S223J RS1/16S223J RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RN1/10SE1002D RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU473J RD1/4PU104J RD1/4PU472J RD1/4PU103J RD1/4PU222J RD1/4PU472J RD1/4PU221J RD1/4PU222J RD1/4PU563J RD1/4PU331J RD1/4PU331J
A
B
C
D
CAPACITORS
C C C C C C C C C C C C C C C 101 102 105 106 151 152 153 154 201 202 203 204 301 302 351 CFTNA104J50 CFTNA104J50 CFTNA474J50 CFTNA474J50 CFTNA184J50 CFTNA184J50 CFTNA224J50 CFTNA224J50 CEAT100M50 CEAT100M50 CEAT100M50 CEAT100M50 CCSRCH121J50 CCSRCH121J50 CCSRCH470J50
E
F
GM-D505/XH/EW
23 7 8
5
6
1
2
3
4
A
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C 352 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 421 422 423 424 427 428 429 430 440 441 442 443 451 452 453 454 455 456 457 458 459 460 461 462 463 464 466 467 468 469 470 471 472 473 474 475 476 501 502 503 504 505 506 507 508 509 510 511
Part No. ------------------------CCSRCH470J50 CEAT100M50 CEAT100M50 CEAT100M50 CEAT100M50 CQMA222J50 CQMA222J50 CQMA102J50 CQMA102J50 CQMA222J50 CQMA222J50 CQMA102J50 CQMA102J50 HCH0019 HCH0019 CEAT100M63 CEAT100M63 HCH0017 HCH0017 HCH0017 HCH0017 CFTNA104J50 CFTNA104J50 CFTNA474J63 CEANP4R7M63 CFTNA103J50 CFTNA103J63 CKSRYB103K50 CKSRYB103K50 CEAT1R0M50 CEAT1R0M50 CFTNA104J50 CFTNA104J50 CFTNA394J63 CEAT100M63 CEAT100M50 CEAT100M50 CFTNA104J50 CFTNA104J50 CFTNA224J50 CFTNA104J50 CKSRYB222K50 CKSRYB222K50 CFTNA474J50 CFTNA183J50 CFTNA183J50 CKSRYB331K50 CKSRYB331K50 CKSRYB331K50 CKSRYB331K50 CKSRYB331K50 CKSRYB331K50 CKSRYB331K50 CKSRYB331K50 CEAT220M50 CEAT220M50 CEAT101M50 CEAT101M50 CEAT220M50 CEAT220M50 CFTLA105J50 CFTLA105J50 CFTLA105J50 CFTLA105J50 CKSRYB471K50
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 512 513 514 517 518 519 520 551 552 553 554 555 556 557 558 559 560 561 562 563 564 567 568 569 570 601 602 603 604 605 606 607 608 609 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 631 632 633 634 635 636 640 641 642 643 644 651 652 653 3900µF/16V 3900µF/16V 3900µF/16V 3900µF/16V 470µF/16V
Part No. ------------------------CKSRYB471K50 CKSRYB471K50 CKSRYB471K50 CFTNA333J50 CFTNA333J50 CQMA102J50 CQMA102J50 CEAT220M50 CEAT220M50 CEAT101M50 CEAT101M50 CEAT220M50 CEAT220M50 CFTLA105J50 CFTLA105J50 CFTLA105J50 CFTLA105J50 CKSRYB471K50 CKSRYB471K50 CKSRYB471K50 CKSRYB471K50 CFTNA333J50 CFTNA333J50 CQMA102J50 CQMA102J50 CFTNA103J50 CFTNA224J50 CFTNA103J50 CFTNA103J50 CFTNA103J50 CFTNA103J50 CEAT100M50 CEAT100M50 CEAT101M50 CEAT220M50 HCH0013 CFTNA103J50 CFTNA103J50 CEAT100M50 CEAT221M10 CQMA102J50 CEAT2R2M50 CEAT470M50 CQMA472J50 CQMA472J50 CQMA102J50 HCH0018 HCH0018 HCH0018 HCH0018 CFTNA154J50 CEAT221M35 CEAT221M35 CEATR10M50 CEATR10M50 CEAT470M50 CEAT470M50 CFTNA103J50 CFTNA103J50 CFTNA103J50 CFTNA103J50 CQMA102J50 HCH0006 HCH0006 HCH0006
B
1.0µF/100V 1.0µF/100V
4.7µF/63V 4.7µF/63V 4.7µF/63V 4.7µF/63V
C
C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C
D
E
3300µF/16V 3300µF/16V 3300µF/16V
F
24 1 2
GM-D505/XH/EW
3
4
5
6
7
8
=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 654 655 656 657 658 663 664 665 666 711 712 717 718 719 720 721 722 723 724 801 802 803 804 805 806 807 808 809 810 811 812 831 832 833 834 835 836 837 838 839 840 851 852 853 854 855 856 857 858 859 860 901 220µF/10V 3300µF/16V 3300µF/16V 3300µF/16V 3300µF/16V 3300µF/16V
Part No. ------------------------HCH0006 HCH0006 HCH0006 HCH0006 HCH0006 CKSRYB103K50 CKSRYB103K50 CKSRYB103K50 CKSRYB103K50 CKSRYB103K50 CKCYB472K50 CCSRCH271J50 CCSRCH271J50 CCSRCH271J50 CCSRCH271J50 CCSRCH271J50 CCSRCH271J50 CCSRCH271J50 CCSRCH271J50 CKSRYB471K50 CKSRYB471K50 CEAT100M50 CEAT100M50 CKSRYB472K50 CKSRYB472K50 CCSRCH470J50 CCSRCH470J50 CCSRCH271J50 CCSRCH271J50 CCSRCH470J50 CCSRCH470J50 CKSRYB471K50 CKSRYB471K50 CEAT100M50 CEAT100M50 CKSRYB472K50 CKSRYB472K50 CCSRCH470J50 CCSRCH470J50 CCSRCH470J50 CCSRCH470J50 CKSRYB471K50 CKSRYB471K50 CEAT100M50 CEAT100M50 CKSRYB472K50 CKSRYB472K50 CCSRCH470J50 CCSRCH470J50 CCSRCH470J50 CCSRCH470J50 HCH0012
=====Circuit Symbol and No.===Part Name --- -----------------------------------------------
Part No. -------------------------
A
NETWORK UNIT Consists of NETWORK PCB CONNECTOR PCB
B C
IC IC S VR VR VR 131 331 131 131 201 231
Unit Number : HWG0030 Unit Name : Network Unit
IC IC Switch (A HPF) Variable Resistor 20k(E)(A Freq) Variable Resistor 10k(A)(Sub Gain) Variable Resistor 10k(A)(A Gain) NJM2068MD NJM2068MD HSH0004 CCS1266 CCS1265 CCS1265
MISCELLANEOUS
B
RESISTORS
R R R R R R R R R R R R R R R R R R R R R R R R R R 131 132 133 134 135 136 137 138 139 140 141 142 143 144 201 202 203 204 231 232 233 234 331 332 333 334 RS1/16S822J RS1/16S822J RS1/16S432J RS1/16S432J RS1/16S103J RS1/16S103J RS1/16S432J RS1/16S432J RS1/16S102J RS1/16S102J RS1/16S242J RS1/16S242J RS1/16S102J RS1/16S102J RS1/16S222J RS1/16S222J RS1/16S330J RS1/16S330J RS1/16S222J RS1/16S222J RS1/16S560J RS1/16S560J RS1/16S103J RS1/16S103J RS1/16S222J RS1/16S222J
C
D
CAPACITORS
C C C C C C C C C C C 131 132 133 134 331 332 637 638 713 714 715 CFTNA184J50 CFTNA184J50 CFTNA224J50 CFTNA224J50 CCSRCH470J50 CCSRCH470J50 CKSRYB103K50 CKSRYB103K50 CKSRYB103K50 CKSRYB103K50 CKCYB472K50
E
6. ADJUSTMENT
There is no information to be shown in this chapter.
F
GM-D505/XH/EW
25 7 8
5
6
1
2
3
4
A
7. GENERAL INFORMATION
7.1 DIAGNOSIS 7.1.1 DISASSEMBLY
- Removing the Case (Fig.1)
Case
1
B
Remove the five screws.
1 1 1 2
2 3
Remove the four screws.
Remove the three screws.
2
Remove the three Fuses and then remove the 2 Case.
2 1
C
2
1
3
3
3
Fuse
Fig.1
- Removing the Amp Unit (Fig.2)
D
1
Remove the five screws and then remove the Amp Unit.
1 1
1
1
1
E
Amp Unit
Fig.2
F
26 1 2
GM-D505/XH/EW
3
4
5
6
7
8
7.1.2 CONNECTOR FUNCTION DESCRIPTION
A
B
C
D
E
F
GM-D505/XH/EW
27 7 8
5
6
1
2
3
4
A
7.2 IC
33 I-OFCLK 32 DGND 31 CD
REF TERM. OSC
42 +Vs-Low
*TDA7570
52 -2.5V 49 INR+ 46 INL+ 50 INR45 INL51 NC 48 NC 47 NC 44 NC 43 NC
37 THWext
36 THWint
40 5V DIG
SGND 53 2.5V 54 MUTE 55 STBY 56 Feed R in 57
CLIP
34 O0-15
38 NTC
41 NC
39 NC
35 NC
30 CDsel2 29 CDsel1 28 FEED L in 27 -Vs2
B
-Vs3 58
RIGHT CHANNEL SIGNAL PROCESSING
LEFT CHANNEL SIGNAL PROCESSING
INTERFACE
INTERFACE
-Vs4 59
26 -Vs1
CHANNEL RIGHT LSD + PROTECTIONS CHANNEL RIGHT HSD + PROTECTIONS CHANNEL LEFT HSD + PROTECTIONS CHANNEL LEFT LSD + PROTECTIONS
C
-Vs+VRefr 60 SNR1 61 SNR2 62 GNRS 63 GNR 64 1 NC 2 NC
25 -Vs+VRefl 24 SNL1 23 SNL2 22 GNLS 21 GNL
3 NC
4 GPR
5 GPRS
6 +Vs-5
7 SPR2
8 SPR1
9 +Vs-VReff
10 PGND
11 NC
12 +Vs
13 SPL1
14 SPL2
15 -Vs+5
16 NC
17 GPLS
18 GPL
19 NC
20 NC
D
TDA7294V
7 2
13 14
3
IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.
4 10
6
MUTE STBY
1 8
E
9
THERMAL SHUTDOWN
15
S/C PROTECTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
NON INVERTING INPUT
STAND-BY GND
+Vs (SIGNAL)
+Vs (POWER)
INVERTING INPUT
-Vs (SIGNAL)
BOOTSTRAP
F
28 1 2
GM-D505/XH/EW
-Vs (POWER)
STAND-BY
NC
MUTE
SUR
NC
OUT
NC
3
4
5
6
7
8
7.3 CIRCUIT DESCRIPTIONS
- The principle of class-D amplifier.
A class-D amplifier uses (Pulse Wide Modulation) PWM . This means that the original signal Vin(sine-waved signal) at the input is modulated with another signal Vm which has a much higher fixed frequency. The waveform which is used as carrier wave or modulation signal is normally a triangle-shaped signal.
A
B
Vin: input signal (sine-waved signal) Vm: modulated signal (triangle-shaped signal) Vd: output signal (pulse width modulated signal) The Vd signal has a fundamental frequency equal to that of the modulation frequency Fm (the frequency of the modulation signal Vm) but will also contain the input signal and a band of frequency components around the modulation frequency. The original signal Fvin is selected with a low pass filter, cutting the high frequencies around the modulation frequency Fm.
C
D
E
Fvin: original signal Fc: cut off frequency Fm: modulation frequency
- Circuit Description
IC401 (TDA7570) is class D Chip with internal Analog to Digital Converter. (See an IC information block) IC401 (TDA7570) digitizes the analog waveform and uses PWM at 310kHz Rail to Rail Square wave to generate an audio signal that is then recovered by the 4th order LC filter.
29 7 8
F
GM-D505/XH/EW
5
6
D
C
E
B
A
F
30
BFC (Beat Frequency Control) Switch
The power indicator lights when the power is switched on.
Power Indicator
8. OPERATIONS
1
1
If you hear a beat while listening to an MW/LW broadcast with your car stereo, change the BFC switch using a small standard tip screwdriver.
2
2
Gain Control and Bass Level Control
GM-D505/XH/EW
Adjusting the gain controls A and B and the bass level control (CH SUB) will help match the output of the car stereo to the Pioneer amplifier. Normally, set these controls to the "NORMAL (NORM.)" position. If the output is low, even when the volume of the car stereo is turned up, turn these controls clockwise. If there is distortion when the volume of the car stereo is turned up, turn these controls counter-clockwise.
3
3
HPF (High-Pass Filter) Select Switch (CH A and CH B)
Set the HPF select switch as follows according to the type of speaker that is connected to the speaker output connector and the car stereo system: HPF Select Switch
OFF (Left) HPF (Right)
· If you only use one input plug, set the gain controls for speaker outputs A and B to the same position. · When using with an RCA equipped car stereo (standard output of 500 mV), set to the NORMAL position. When using with an RCA equipped Pioneer car stereo with max. output of 4 V or more, adjust level to match the car stereo output level. · When you want to boost bass, turn the bass level control clockwise.
Audio frequency range to be output
Full range Low Frequency range to High Frequency range
Speaker Type
Full range Full range
Remarks
Cut Off Frequency Control
You can select a cut off frequency from 40 to 240 Hz.
4
4
Use if you want to cut the very low frequency range because it is not necessary for the speakers you are using.