ORDER NO. 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 2005 GM-7200M/XU/UC CRT3521 MONO POWER AMPLIFIER GM-7200M /XU/UC GM-7200M /XU/EW GM-7200M /XU/ES GM-7200M /XU/CN For details, refer to "Important Check Points for Good Servicing". K-ZZA. OCT. 2005 Printed in Japan
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For details, refer to "Important Check Points for Good Servicing".
K-ZZA. OCT. 2005 Printed in Japan
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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.
WARNING
This product contains lead in solder and 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
- Service Precaution 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.
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[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.
0 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.
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.
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.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.
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.
GM-7200M/XU/UC 35 6 7 8
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CONTENTS SAFETY INFORMATION..................................................................................................................................... 21. SPECIFICATIONS ............................................................................................................................................ 52. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 8
5. ELECTRICAL PARTS LIST ............................................................................................................................ 256. ADJUSTMENT ............................................................................................................................................... 327. GENERAL INFORMATION............................................................................................................................. 33
7.1 DIAGNOSIS ............................................................................................................................................. 337.1.1 DISASSEMBLY ..................................................................................................................................... 337.1.2 CONNECTOR FUNCTION DESCRIPTION.......................................................................................... 347.2 IC ............................................................................................................................................................. 35
NOTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List. • 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. • Screw 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.)
"
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311
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PACKING SECTION PARTS LIST
Owner's Manual
Mark No. Description GM-7200M/XU/UC GM-7200M/XU/EW GM-7200M/XU/ES GM-7200M/XU/CN 1 Cord Assy CDE7736 CDE7736 CDE7736 CDE7736 2 Cord Assy Not used CDE7804 Not used Not used 3 Screw Assy CEA5330 CEA5328 CEA5330 CEA5330 4 Screw Not used BYC30P100FTB Not used Not used 5 Screw BYC40P180FTB BYC40P180FTB BYC40P180FTB BYC40P180FTB
11-1 Polyethylene Bag CEG1116 CEG1116 CEG1116 CEG1116 11-2 Owner's Manual CRD4006 CRD4005 CRD4007 CRB2105* 11-3 Warranty Card Not used CRY1157 Not used ARY7046* 11-4 Card ARY1048 Not used Not used Not used 11-5 Owner's Manual Not used Not used CRD4008 Not used
12 Remote Control Assy Not used CXC4064 Not used Not used* 13 Polyethylene Bag Not used CEG1171 Not used Not used
10 Heat Sink CNR1826 CNR1806 CNR1826 CNR182613 Amp Unit CWH1286 CWH1285 CWH1286 CWH128619 Connector(CN701) Not used CKS4962 Not used Not used35 Cover Not used CNS8141 Not used Not used
36 Remote Control Unit Not used CWM9848 Not used Not used37 Connector(CN1351) Not used CKS4962 Not used Not used38 Spring Not used CBL1692 Not used Not used41 Grille Not used CNS8140 Not used Not used42 Knob Unit Not used CXC4335 Not used Not used
43 Screw Not used BPZ20P100FTB Not used Not used
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dicates
of
BASS BOOST
+9dB)
-2.6d
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3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM3.1 SCHEMATIC DIAGRAM(GUIDE PAGE)
A-aA-a A-b A-b
A-aA-a A-b A-b
A-b A-b A-a A-a
Large sizeSCH diagram
Guide page
Detailed page
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".
A-a
A
B
Decimal points for resistorand capacitor fixed valuesare expressed as :2.2 2R20.022 R022
← ←
The > mark found on some component parts inthe importance of the safety factor of the part.Therefore, when replacing, be sure to use parts identical designation.
Symbol indicates a resistor.No differentiation is made between chip resistors anddiscrete resistors.
NOTE :
Symbol indicates a capacitor.No differentiation is made between chip capacitors anddiscrete capacitors.
CN
1351
GAIN
LPF
15K
330
320µH
320µH
0dB 0dB
+18.5dBs(BB ONINPUT MAX)
0dB -1.7dB ~ -32.0dB
0dB or +12dB
or +6dB ( or
-0.8dB
+17.5dBs
+18.3dBs+17.5dBs
-15dBs
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A-a A-b
A-a A-b
A-b A-a
omponent pctor of the psure to use
0dB or +1
or +6d
s
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A-b
A
A AMP UNIT
arts indicatesart.parts of
>
>
BASS BOOST
BFC
50µH
2dB
B ( or +9dB)
0dB
-2.6dBs
+38dBs
-2.6dBs
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A-a
A-b
A-a
A-a
A-b 1
B
Dec
imal
poi
nts
for
resi
stor
and
capa
cito
r fix
ed v
alue
sar
e ex
pres
sed
as :
2.2
2R
20.
022
R
022
←
←
The
> m
ark
foun
d on
som
e co
mpo
nent
par
ts in
dica
tes
the
impo
rtan
ce o
f the
saf
ety
fact
or o
f the
par
t.T
here
fore
, whe
n re
plac
ing,
be
sure
to u
se p
arts
of
iden
tical
des
igna
tion.
Sym
bol i
ndic
ates
a r
esis
tor.
No
diffe
rent
iatio
n is
mad
e b
etw
een
chip
res
isto
rs a
nddi
scre
te r
esis
tors
.
NO
TE
: Sym
bol i
ndic
ates
a c
apac
itor.
No
diffe
rent
iatio
n is
mad
e b
etw
een
chip
cap
acito
rs a
nddi
scre
te c
apac
itors
.
CN1351
BA
SS
BO
OS
T
GA
IN
LPF
15K
330
0dB
0dB
+18.
5dB
s(B
B O
NIN
PU
T M
AX
)
0dB
-1.7
dB ~
-32
.0dB
0dB
or
+12d
B
o
r +6
dB (
or
+9dB
)
0dB
-0.8
dB
+17.
5dB
s
+18.
3dB
s+1
7.5d
Bs
-15d
Bs
-2.6
dBs
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-0.8
dB
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A-a
A-b
A-a
A-a
A-b2 3 4
320
H
320
H
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A-a
A-b
A-b 1
AA
MP
UN
IT
OS
T
0dB
.6dB
s
+38d
Bs
-2.6
dBs
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A-a
A-b
A-b2 3 4
> >
BF
C
50H
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3.2 REMOTE CONTROL UNIT(EW)
B
ACN701
B REMOTE CONTROL UNIT
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4. PCB CONNECTION DIAGRAM4.1 AMP UNIT
CapacitorConnector
P.C.Board Chip Part
A
A AMP UNIT
SIDE B
SIDE A
NOTE FOR PCB DIAGRAMS1.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 dia- gram.2.Viewpoint of PCB diagrams
BFC
3 2 1 3 2 1 3 2 1 3 2 13 2 13 2 1
BFC
SP
EA
KE
R O
UT
PU
TS
PE
AK
ER
OU
TP
UT
PO
WE
R S
UP
PLY
21
21
12
3
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3 2 1
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A
SIDE A
LPF/OFF
RCA IN
BASS BOOST
GAIN
LPF
BCN1351
LchRch
LPF/OFF
RCA IN
BASS BOOST
GAIN
LPF
SPEAKERLEBELINPUT
R+
L+
R-
L-
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A
A AMP UNIT
R+
L+
R-
L-
Lch Rch
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B
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A
SIDE B
11
1
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4.2 REMOTE CONTROL UNIT(EW)
B
B REMOTE CONTROL UNIT B REMOTE CONTROL UNITSIDE A SIDE B
54321
13
24
BASS BOOST
12dB
9dB
6dB
0dB
A CN701
1
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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.....• 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. • Meaning of the figures and others in the parentheses in the parts list. Example) IC 301 is on the point (face A, 91 of x-axis, and 111 of y-axis) of the corresponding PC board. IC 301 (A, 91, 111) IC NJM2068V
Circuit Symbol and No. Part No.
Unit Number : CWH1286(UC, ES, CN)
Unit Name : Amp Unit
Unit Number : CWH1285(EW)
Unit Name : Amp Unit
Unit Number : CWM9848(EW)
Unit Name : Remote Control Unit
AUnit Number : CWH1286(UC, ES, CN)Unit Name : Amp Unit
MISCELLANEOUS
IC 111 (B,293,51) IC NJM4558MDIC 112 (B,274,78) IC NJM4558MDIC 141 (B,283,103) IC NJM4558MDIC 171 (B,286,186) IC NJM4558MDIC 191 (B,273,170) IC NJM4558MD
IC 651 (A,168,96) IC PA2027AIC 901 (B,158,64) IC UPC494GSQ 201 (B,249,137) Transistor 2SC4081Q 202 (B,252,134) Transistor 2SC4081Q 203 (B,251,128) Transistor DTA124EU
C 993 (A,135,173) CQHA102J2AC 994 (A,130,173) CQHA102J2A
Circuit Symbol and No. Part No.
AUnit Number : CWH1285(EW)Unit Name : Amp Unit
MISCELLANEOUS
IC 111 (B,293,51) IC NJM4558MDIC 112 (B,274,78) IC NJM4558MDIC 141 (B,283,103) IC NJM4558MDIC 171 (B,286,186) IC NJM4558MDIC 191 (B,273,170) IC NJM4558MD
IC 651 (A,168,96) IC PA2027AIC 701 (B,271,139) IC MAX309ESEIC 901 (B,158,64) IC UPC494GSQ 201 (B,249,137) Transistor 2SC4081Q 202 (B,252,134) Transistor 2SC4081