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209
STANDBY/ON
ORDER NO.
RRV2147
GRAPHIC EQUALIZER
GR-209
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
MYXCN1 SDXCN1
Model GR-209
AC220 230V
Power Requirement
Remarks
AC110/120127/220/240V
With the voltage selector
CONTENTS
1. SAFETY INFORMATION ...................................... 2 2. EXPLODED VIEWS AND PARTS LIST ................ 3 3. SCHEMATIC DIAGRAM ....................................... 6 4. PCB CONNECTION DIAGRAM ............................ 8 5. PCB PARTS LIST ............................................... 10 6. ADJUSTMENT .................................................... 10 7. GENERAL INFORMATION ................................ 11 7.1 IC .................................................................. 11 8. PANEL FACILITIES AND SPECIFICATIONS .... 13 PIONEER ELECTRONIC CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
c PIONEER ELECTRONIC CORPORATION 1999
T ZZR MAY 1999 Printed in Japan
GR-209
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. 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
NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or be of identical designation.
(slow operating fuse) on PCB indicate that replacement parts must
REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou de remplacement doivent avoir la même désignation.
(fusible de type lent) sur CCI indiquent que les pièces
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5mA.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related characteristics. 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 parts which have these special safety characteristics are identified in this Service Manual. Electrical 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 information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.
Device under test Test all exposed metal surfaces
Reading should Leakage not be above current 0.5mA tester
Also test with plug reversed (Using AC adapter plug as required)
Earth ground
AC Leakage Test
2
GR-209
2. EXPLODED VIEWS AND PARTS LIST
NOTES:
· Parts marked by "NSP" 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. · Screws adjacent to mark on the product are used for disassembly.
8
2.1 PACKING
4 10
5
6 3 1 1
9
2
7
(1)PACKING PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10
Description
Pin Plug Cords (L = 1m) Polyform L Polyform R Polyethlene Bag (0.03X230X340) Operating Instructions Power Plag Adaptor Carton Box Warranty Card Packing Sheet CAUTION 220V LABEL
Part No.
PDE1248 14904081-000 14904082-000 Z21-038
See Contrast table (2) See Contrast table (2) See Contrast table (2)
NSP NSP
····· ·····
See Contrast table (2)
(2) CONTRAST TEBLE
GR-209/MYXCN1 and SDXCN1 are constructed the same except for the following:
Mark No.
5
Symbol and Description
Operating Instructions (English/French/German/Italian /Dutch/Swedish/Spanish/Portuguese) Operating Instructions (English/Spanish/Chinese) Power Plag Adaptor Carton Box CAUTION 220V LABEL
Part No. MYXCN1 type
15202090-0297
SDXCN1 type
Not used
Remarks
5 6 7 10
Not used Not used 15302090-0297 Not used
15202091-0297 VKX1007 15302091-0297 ARR7003
3
GR-209
2.2 EXTERIOR SECTION
18
18
18 18
18
9 18 19
18 20 18 20 19 19
10 (1/4 : EQ PCB ) 2 18 10 (3/4 : EQ ON/OFF PCB) 5 1
2 19
22 23 18
10 18 (2/4 : POWER PCB )
4 3 3 3
SDXCN1 type Only
6 6 6 15 6 18 18 7 6 6 6
3
18
21 18
17
6 18 8 16
18 18 18 13 18 18 18 18 13 18 13 18 18 13
18
10(4/4 : JACK PCB)
4
GR-209
(1) EXTERIOR SECTION PARTS LIST
Mark No.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NSP 16 17 18 19 20 21 22 23
Description
Front Cabinet EQ Bracket EQ Knob(Black) Power Button EQ On/Off Button Post Rear Panel Bottom Cabinet Bonnet Cover Main Bord Assy ····· ····· Foot(Black)W/O H/S ····· AC Power Cord Bushing Name Plate Screw Screw Screw Voltage Selector Fuse (630mA/250V) Fuse Caution Label
Part No.
10104080-002 12904082-010 12704082-010 12804080-010 12804080-110 13004082-000
See Contrast table (2)
NSP
····· 18004083-010
See Contrast table (2)
13821007-010 02360020-004 13000000-001 PAM1776 BBZ30P080FZK IBZ30P080FMC BPZ26P080FMC
See Contrast table (2)
05005020-063 15454081-003
(2) CONTRAST TEBLE
GR-209/MYXCN1 and SDXCN1 are constructed the same except for the following:
Mark No.
7 10 21
Symbol and Description
Rear Panel Main Bord Assy Voltage Selector
Part No. MYXCN1 type
18004085-102 GR209/MY Not used
SDXCN1 type
18004085-201 GR209/SD AKX-507
Remarks
5
1
2
3
4
GR-209
3. SCHEMATIC DIAGRAM
3.1 MAIN BOARD ASSY
A AC220-230V 50/60Hz MYXCN1 TYPE AC110/120-127/ 220/240V 50/60Hz SDXCN1 AC POWER CORD 02360020-004
AC-2 250V/630mA 05005020-063 AC-1
AKX-507
MY: 01802093-570
POWER SUPPLY
R22 820/1W
SD Only SD: 01802093-460
J7 J6 J5 J4
-29
-12
+29 +12
R21 820/1W
C51 0.22µ/500V
0
INPUT
POWER OFF/ON (LINE OUTPUT MUTE)
IC1B LA64
A
POWER PCB
B
OFF ON
EQUALIZER OFF / ON
0
6
SW1 : POWER OFF/ON SW2 : EQUALIZER OFF/ON
VR KNOB LED GRAPHIC EQUALIZER ON/OFF
JACK PCB
C
OUTPUT
B
INPUT
B
D
6
A B C
1 2 3 4
5
6
7
8
GR-209
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
GRAPHIC EQUALIZER OUTPUT
C 1/2 EQ PCB C 2/2 EQ ON/OFF PCB
GRAPHIC EQUALIZER OUTPUT
GRAPHIC EQUALIZER OUTPUT
A
R36 6.8k +12 0 VCC IC1B LA6458S GRAPHIC EQUALIZER INPUT 0
GND VCC VEE
-12
0
0
INPUT BUFFER AMP.
EQUALIZER OFF / ON
0
GRAPHIC EQUALIZER
GRAPHIC EQUALIZER OUTPUT
+12
0
0
0
0
0
0
0
B
0 0 0 0 0 0 0 0
R6 6.8k
INPUT BUFFER AMP. OUTPUT (EQUALIZER OFF)
GRAPHIC EQUALIZER OUTPUT
C19
GRAPHIC EQUALIZER INPUT
0
OUTPUT GRAPHIC EQUALIZER INPUT
INPUT BUFFER AMP.
0 IC1A LA6458S
GRAPHIC EQUALIZER OUTPUT +12 VCC
6.8k
VR1-VR14 : 01110203-230
GRAPHIC EQUALIZER OUTPUT
C
0 -12
0 +12 0 0 0 0 0 0 0 0 0
VEE 0
GND
EQUALIZER OFF / ON
VCC
VEE
-12
GRAPHIC EQUALIZER
0
0
0
0
0
0
0
R7 6.8k
0
D
VR8
C
5 6 7 8
7
1
2
3
4
GR-209
4. PCB CONNECTION DIAGRAM
4.1 MAIN BOARD ASSY
A
SIDE A
NOTE FOR PCB DIAGRAMS :
1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. 3. View point of PCB diagrams.
SIDE A
P.C.Board
B
Chip Part
SIDE B
Voltage Selector
A
POWER PCB
NEUTRAL
Connector
Capacitor
WHITE
B
JACK PCB
C
C 1/2 EQ PCB
D
8
ABC
1 2 3 4
LIVE
5
6
7
8
GR-209
SIDE A
A
MAIN BOARD ASSY
POWER CORD
AC
C 2/2 EQ ON/OFF PCB
IC3 IC2 IC1
B
B
C
D
C
5 6 7 8
9
GR-209
Mark No. Description Part No. Mark No. Description Part No.
5. PCB PARTS LIST
NOTES:
· Parts marked by "NSP" 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. · When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and K=10%). 561 ........................................................ RD1/4PU 5 6 1 J 560 56 × 101 473 ........................................................ RD1/4PU 4 7 3 J 47k 47 × 103 0.5 R50 ..................................................................................... RN2H R 5 0 K 1 1R0 ..................................................................................... RS1P 1 R 0 K Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5621 ...................................................... RN1/4PC 5 6 2 1 F 5.62k 562 × 101
7 LIST OF WHOLE PCB ASSEMBLIES
Part No. Mark Symbol and Description MYXCN1
MAIN BOARD ASSY EQ PCB POWER PCB EQ ON / OFF PCB JACK PCB GR209/MY ····· ····· ····· ·····
Remarks SDXCN1
GR209/SD ····· ····· ····· ·····
NSP NSP NSP NSP
PCB PARTS LIST
MAIN BOARD ASSY (1) CONTRAST TABLE
GR209/MY and GR209/SD are constructed the same except for the following:
Part No. Mark Symbol and Description GR209/MY
T1 Transformer 01802093-570
Remarks GR209/SD
01802093-460
Mark No.
Description
Part No.
Mark No.
Description
Part No.
(2) PARTS LIST for GR209/MY
POWER PCB SEMICONDUCTORS
LED1 LED 01912000-053
A
C
02042218-111
EQ PCB
SEMICONDUCTORS
IC2,IC3 AUDIO IC IC1 IC LA6458SS M5229P 00206458-040
SWITCHES
SW1 PBS-22H030F18
SWITCHES
SW2 PBS-42H03-F18 02014218-110
OTHERS
T1 TRANSFORMER EI-35 01802093-570
RESISTOR
VR1-VR14 SLIDE VR. 01110203-230
B
JACK PCB
This unit has no servicce parts.
6. ADJUSTMENT
There is no information to be shown in this chapter.
10
GR-209
7. GENERAL INFORMATION
7.1 IC
· The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
M5229P (MAIN BOARD ASSY : IC2, IC3)
· Graphic Equalizer
·Pin Arrangement
IN 1 1 NF 1 2 IN 2 3 NF 2 4 IN 3 5 NF 3 6 IN 4 7 NF 4 8 IN 5 9 NF 5 10 20 Vcc 19 GND 18 +Vcc 17 OUTPUT 16 INVERTING INPUT 15 NON-INVERTING INPUT 14 NF 7 13 IN 7 12 NF 6 11 IN 6
·Block Diagram
Vcc GND +Vcc OUTPUT
NONINVERTING INVERTING INPUT INPUT
NF 7
IN 7
NF 6
IN 6
20
19
18
17
16
15
14
560
13
12
560
11
10k
10k
47k
47k
47k
47k
47k
47k
47k
47k
560
560
560
560
560
1
IN 1
2
NF 1
3
IN 2
4
NF 2
5
IN 3
6
NF 3
7
IN 4
8
NF 4
9
IN 5
10
NF 5
·Pin Function
No. 1 2 3 4 5 6 7 8 9 Pin Name IN 1 NF 1 IN 2 NF 2 IN 3 NF 3 IN 4 NF 4 IN 5 Compose the bandpass filter by connecting a capacitor with IN terminals and NF terminals located next to each other, and the gain can be set up by connecting a variable resistor (slide volume). Function No. 11 12 13 14 15 16 17 18 19 20 Pin Name IN 6 NF 6 IN 7 NF 7
Non-inverting input Inverting input
Function Compose the bandpass filter by connecting a capacitor with IN terminals and NF terminals located next to each other, and the gain can be set up by connecting a variable resistor (slide volume). Non-inverting input pin for output OP amp. Inverting input pin for output OP amp. Output pin for output OP amp. Positive power supply pin Ground pin Negative power supply pin
OUTPUT +Vcc GND Vcc
10 NF 5
11
GR-209
LA6458S (MAIN BOARD ASSY : IC1)
· Input Buffer Amplifier ·Pin Arrangement
1
2
3
4
5
VEE
6
7
8
9
Vcc VOUT1 VIN-1 VIN+1
VIN+2 VIN-2 VOUT2 Vcc
·Block Diagram
Vcc 1,9
VIN+1 4 VIN-1 3
6 VIN+2 7 VIN-2
VEE 5 2 VOUT1 8 VOUT2
12
GR-209
8. PANEL FACILITIES AND SPECIFICATIONS
· FRONT PANEL FACILITIES
3
Left channel Equalizer indicators
Right channel Equalizer indicators
Equalizer ON indicator
209
STANDBY/ON
STANDBY ON
1
1 STANDBY/ON switch (STANDBY / ON) When this switch is set to the ON position, power is supplied to the unit's main circuits (Equalizer indicators lights).
2
3 Equalizer controls These are equalizer controls for the bands 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.4 kHz, 6 kHz and 15 kHz. When the equalizer button has been set to ON, these controls may be adjusted. When a control is raised upwards from the "0" position, the frequency band corresponding to that control will be emphasized; when the controls is lowered, the frequency band will be attenuated. These controls can be used independently for right and left channels.
NOTE: Even when performing playback without using the functions of this component, be sure that its STANDBY/ON switch is ON. If the STANDBY/ON switch is STANDBY, no sound will be produced from the speakers.
2 EQUALIZER button (EQUALIZER OFF / ON) When this button is pressed, the equalizer ON indicator lights and its functions become operative. When pressed once again, this indicator go out and the unit's functions are turned OFF, Use this button in the following manner: ON: When using the equalizer to add sound compensation while performing mixing operations with program sources (FM broadcasts, CD play, tape playback, etc.). OFF: When not using the equalizer, but playing back or recording program sources without compensation.
NOTE: In order to protect your speakers from damage resulting from excessively large inputs, whenever augmenting highfrequency sound over a wide range, be sure not to raise your amplifier's sound volume too high.
13
GR-209
· SPECIFICATIONS
Input terminals (Reference input level/Input impedance) INPUT .......................................................... 150 mV/50 k Gain ............................................................................. -2 dB Output terminals (Reference output level/Output impedance) OUTPUT ..................................................... 150 mV/3.3 k Harmonic distortion (20 Hz ~ 20 kHz, Output 1V) .................................................................................. 0.03 % Frequency response INPUT ................................................... 20Hz~20kHz +0 dB 3 Equalizer bands Center frequencies ................................................ 60 Hz, 150 Hz, 400 Hz,1 kHz 2.4 kHz, 6 kHz, 15 kHz Variable range .......................................................... ±10 dB SN ratio (IHF, A network, short circuit, 1V) INPUT ...................................................................... 106 dB Electrical section, miscellaneous Power requirements (MYmodel) ... AC 220-230 V, 50/60 Hz (SD model) ........... AC 110/120-127/220/240 V, 50/60 Hz Power consumption ......................................................... 6 W External dimensions (W x H x D) .......... 420 x 85 x 214 mm 16-9/16 x 3-3/8 x 8-7/16 in. Weight ................................................... 2.2 kg (4 lb. 14 oz.) Accessories Pin-plug cords .................................................................... 2 Operating Instructions ........................................................ 1 Plug adaptor (SDXCN1 model) .......................................... 1
NOTE: Specifications and the design are subject to possible modifications without notice, due to improvements.
Accessories Pin-plug cords : PDE1248 (L=1m) × 2 White Red Red
White
14