PIONEER VSX-C502-S/SAXU Service Manual

Cover page of PIONEER VSX-C502-S/SAXU Service Manual

Service Manual for PIONEER VSX-C502-S/SAXU, downloadable as a PDF file.

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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 2004
MASTER
VOLUME
INPUT SELECTOR
PHONES
ADVANCED
NEO:6
STANDBY/ON
FRONT INPUT
DIGITAL IN
VIDEO
AUDIO
LR
PHONES/SETUP MIC
DTS
2PRO LOGICII 2PRO LOGICIIx
2DIGITAL
STANDBY
DOWN
UP
VSX-C502-S
RRV3023
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-C502-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
Power Requirement
The voltage can be converted by the
following method
VSX-C502-S
FLXU
AC110V/120-127V/220-230V/240V
With the voltage selector
For details, refer to "Important symbols for good services".
T-ZZK SEPT. 2004 printed in Japan
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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 2004
MASTER
VOLUME
INPUT SELECTOR
PHONES
ADVANCED
NEO:6
STANDBY/ON
FRONT INPUT
DIGITAL IN
VIDEO
AUDIO
LR
PHONES/SETUP MIC
DTS
2PRO LOGICII 2PRO LOGICIIx
2DIGITAL
STANDBY
DOWN
UP
VSX-C502-S
RRV3023
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-C502-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
Power Requirement
The voltage can be converted by the
following method
VSX-C502-S
FLXU
AC110V/120-127V/220-230V/240V
With the voltage selector
For details, refer to "Important symbols for good services".
T-ZZK SEPT. 2004 printed in Japan
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VSX-C502-S
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SAFETY INFORMATION
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 cer tain electrical par ts contain chemicals which are known to the state of California to
cause cancer, bir th defects or other reproductive harm.
Health & Safety Code Section 25249.6 ­ Proposition 65
NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols
(fast operating fuse)
and/or
(slow operating fuse) on PCB indicate that replacement
parts must be of identical designation.
REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible
(fusible de type rapide)
et/ou
(fusible de type lent) sur CCI indiquent que
les pièces de remplacement doivent avoir la même désignation.
ANY MEASUREMENTS NOT WITHIN THE
LIMITS OUTLINED ABOVE ARE INDICATIVE
OF A POTENTIAL SHOCK HAZARD AND
MUST BE CORRECTED BEFORE RETURN-
ING THE APPLIANCE TO THE CUSTOMER.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance
have special safety related character istics. These are
often not evident
from visual
inspection nor the
protection afforded by them necessarily can be obtained
by using replacement components rated for voltage,
wattage, etc. Replacement par ts which have these
special safety character istics are identified in this
Service Manual.
Electr ical components having such features are
identified by marking with a
on the schematics and
on the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in the
parts list in this Service Manual, may create shock, fire,
or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
infor mation, always consult the current PIONEER
Service Manual. A subscription to, or
additional copies
of, PIONEER Ser vice Manual may be obtained at a
nominal charge from PIONEER.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be perfor med for the
continued protection of the customer and ser vice
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known ear th ground
(water pipe, conduit, etc.) by connecting a leakage
current tester such as Simpson Model 229-2 or
equivalent between the ear th ground and all exposed
metal par ts of the appliance (input/output ter minals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC line cord of the appliance directly into a 120V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.
Device
under
test
Leakage
current
tester
Earth
ground
Reading should
not be above
0.5 mA
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
AC Leakage Test
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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.
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CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 2
1. SPECIFICATIONS ............................................................................................................................................ 5
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6
2.1 PACKING SECTION .................................................................................................................................. 6
2.2 EXTERIOR (1) ........................................................................................................................................... 8
2.3 EXTERIOR (2) ......................................................................................................................................... 10
2.4 FRONT PANEL SECTION ....................................................................................................................... 12
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................14
3.1 BLOCK DIAGRAM ................................................................................................................................... 14
3.1.1 AUDIO BLOCK .................................................................................................................................. 14
3.1.2 VIDEO AND POWER SUPPLY BLOCKS .......................................................................................... 16
3.2 OVERALL WIRING CONNECTION DIAGRAM........................................................................................ 18
3.3 FM/AM TUNER MODULE ........................................................................................................................ 20
3.4 VIDEO ASSY ........................................................................................................................................... 22
3.5 AUDIO INPUT ASSY ............................................................................................................................... 24
3.6 MOTHER ASSY (1/5)............................................................................................................................... 26
3.7 MOTHER ASSY (2/5) and DSP KAWA ASSY .........................................................................................28
3.8 MOTHER ASSY (3/5)............................................................................................................................... 30
3.9 MOTHER ASSY (4/5)............................................................................................................................... 32
3.10 MOTHER ASSY (5/5)............................................................................................................................. 34
3.11 DSP ASSY (1/2)..................................................................................................................................... 36
3.12 DSP ASSY (2/2)..................................................................................................................................... 38
3.13 FRONT IN and AMP KAWA ASSYS ...................................................................................................... 40
3.14 6CH AMP ASSY .................................................................................................................................... 42
3.15 AMP OUT ASSY .................................................................................................................................... 44
3.16 ENCODER, FRONT and POWER SW ASSYS ..................................................................................... 46
3.17 PRIMARY, D5V, 12V, VHVL and 2-VOLTAGE ASSYS............................................................................ 48
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 50
4.1 FM/AM TUNER MODULE ........................................................................................................................ 51
4.2 VIDEO ASSY ........................................................................................................................................... 52
4.3 VHVL ASSY ............................................................................................................................................. 53
4.4 AUDIO INPUT and 12V ASSYS............................................................................................................... 54
4.5 MOTHER, DSP KAWA and D5V ASSYS ................................................................................................. 56
4.6 DSP ASSY ............................................................................................................................................... 60
4.7 FRONT IN ASSY...................................................................................................................................... 62
4.8 AMP KAWA ASSY ................................................................................................................................... 63
4.9 6CH AMP ASSY ...................................................................................................................................... 64
4.10 AMP OUT ASSY .................................................................................................................................... 66
4.11 ENCODER, FRONT and POWER SW ASSYS ..................................................................................... 68
4.12 PRIMARY and 2-VOLTAGE ASSYS....................................................................................................... 72
5. PCB PARTS LIST ........................................................................................................................................... 73
6. ADJUSTMENT ............................................................................................................................................... 79
6.1 TUNER SECTION .................................................................................................................................... 79
7. GENERAL INFORMATION ............................................................................................................................. 80
7.1 DIAGNOSIS ............................................................................................................................................. 80
7.1.1 TEST MODE ...................................................................................................................................... 80
7.1.2 PROTECTION CIRCUIT.................................................................................................................... 81
7.1.3 SPECIFICATIONS OF SPEAKER DETECTION ............................................................................... 82
7.1.4 DETECTION CIRCUIT ...................................................................................................................... 83
7.1.5 TROUBLE SHOOTING ...................................................................................................................... 84
7.1.6 DSP TROUBLE SHOOTING ............................................................................................................. 86
7.1.7 TIMING CHART ................................................................................................................................. 91
7.2 PARTS...................................................................................................................................................... 95
7.2.1 IC ....................................................................................................................................................... 95
7.2.2 DISPLAY ............................................................................................................................................ 98
7.3 CLEANING............................................................................................................................................... 99
8. PANEL FACILITIES ...................................................................................................................................... 100
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1. SPECIFICATIONS
Amplifier section
MAX Power Output
Front. . . . . . . . . . . . . . . . . .100 W/ch (1 kHz, THD 10 %, 6
)
Center . . . . . . . . . . . . . . . . . .100 W ( 1 kHz, THD 10 %, 6
)
Surround. . . . . . . . . . . . . 100 W/ch ( 1 kHz, THD 10 %, 6
)
Surround back . . . . . . . . . . .100 W ( 1 kHz, THD 10 %, 6
)
Audio section
Input (Sensitivity/Impedance). . . . . . . . . . . . .200 mV/47 k
Output (Level/Impedance) VIDEO , DVR/VCR
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mV/2.2 k
Video section
Input (Sensitivity/Impedance). . . . . . . . . . . . . . .1 Vp-p/75
Output (Level/Impedance). . . . . . . . . . . . . . . . . .1 Vp-p/75
FM tuner section
Frequency Range . . . . . . . . . . . . . . . . 87.5 MHz to 108 MHz
Usable Sensitivity. . . . . . Mono:15.2 dBf, IHF (1.6
µV/ 75 )
50 dB Quieting Sensitivity . . . . . . . . . . . . . . .Mono: 20.2 dBf
Stereo: 41.2 dBf
Signal-to-Noise Ratio. . . . . . . . . . . Mono: 76 dB (at 85 dBf)
Stereo: 72 dB (at 85 dBf)
Distortion. . . . . . . . . . . . . . . . . . . . . . . .Stereo: 0.6 % (1 kHz)
Alternate Channel Selectivity . . . . . . . . . . . 60 dB (400 kHz)
Stereo Separation. . . . . . . . . . . . . . . . . . . . . . . 40 dB (1 kHz)
Frequency Response . . . . . . . . . . . .30 Hz to 15 kHz (
±1dB)
Antenna Input (DIN). . . . . . . . . . . . . . . . . .75
unbalanced
AM tuner section
Frequency Range . . . . . . 531 kHz to 1,602 kHz (9 kHz step)
530 kHz to 1,700 kHz (10 kHz step)
Sensitivity (IHF, Loop antenna). . . . . . . . . . . . . . . .350
µV/m
Selectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 dB
Signal-to-Noise Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . .50 dB
Antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Loop antenna
Miscellaneous
Power Requirements
. . . . . . . . . . . . . . . .AC 110/120-127/220-230/240 V, 50/60 Hz
Power Consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . 190 W
In standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 W
Dimensions. . . . . . . . . . . . . . 420 (W) x 70 (H) x 383 (D) mm
Weight (without package) . . . . . . . . . . . . . . . . . . . . . . .6.7 kg
Furnished parts
Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Mic stand. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SR+ mini-plug cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
AM loop antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
FM wire antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Dry cell batteries (AA size IEC R6P) . . . . . . . . . . . . . . . . . . 2
Remote control unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Power cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Speaker cable labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Operating instructions
Note
Specifications and the design are subject to possible
modifications without notice, due to improvements.
FRONT
FRONT
FRONT
FRONT
CENTER
R
R
R
R
L
L
L
L
CENTER
SURROUND
SURROUND
SURROUND
SURROUND
SURROUND
BACK
SURROUND
BACK
Accessories
· Remote Control Unit
(AXD7391)
· Power Cable
(ADG1154), (ADG7097)
· Microphone
(APM7004)
· Microphone stand
(AEB7313)
· SR+ mini-plug cable
(ADE7095)
· FM wire antenna
(ADH7036)
· AM loop antenna
(ATB7009)
· Speaker cable labels
(ARW7232)
· Dry Cell Battery
(AA size IEC R6P)
(VEM1030)
RECEIVER
SOURCE
RECEIVER
RECEIVER
MCACC SETUP
AV DIRECT
SR+
SBch
MODE
HDD
STOPREC
DVD
REC
RETURN
SEARCH
DISC NAVIGATOR
SYSTEM SETUP
SIGNAL SEL
BAND
EPG EON
RFATT
A
C
BD
E
TIMER REC
+10
ENTER
CH SELECT
TEST
TV C ONTROL
SLEEP
CHANNEL
VOLUME
INPUT
CHANNEL
DIMMER
CLEAR
MASTER
VOLUME
DVD
VIDEO
STB
FRONT
FM/AM
DVR/TV
SURROUND
ADVANCED
SURROUND
SOUND
MODE
DIALOG
AUTO
STEREO
MUTE
AUDIO
T.EDIT
MENU
TUNE
TUNE
ST
ST
ENTER
DISPLAY
CLASS
MPX
D.ACCESS
Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic", "Surround EX" and the double-D
symbol are trademarks of Dolby Laboratories.
"DTS", "DTS-ES Extended Surround", "Neo:6" and "DTS 96/
24" are trademarks of Digital Theater Systems, Inc.

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