Page 1
STEREO AMPLIFIER
POWER
OFF ON
BASS
A SPEAKERS B
PHONES
TREBLE
–
–
+
VOLUME
Direct Energy MOS
LOUDNESS DIRECT
+
MIN MAX
TAPE 1
TUNER
CD
BALANCE
L
TAPE 2
PHONO
LINE
/MD
MONITOR
INPUT SELECTOR
TAPE 2
MONITOR
R
The illustration shows the A-307R.
STEREO AMPLIFIER
A-307R
A-207R
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
A-307R A-207R
Model
Power Requirement
MYXJ/EW AC220-230V ––––
MYXJ/GR AC220-230V ––––
MVXJ – AC220-230V ––––
SAMXJ – AC110V/120-127V/220V/240V With the voltage selector
SDXJ – AC110V/120-127V/220V/240V With the voltage selector
The voltage can be converted by the
following method.
ORDER NO.
RRV1912
CONTENTS
1. SAFETY INFORMATION ...................................... 2
2. EXPLODED VIEWS AND PARTS LIST................ 3
3. SCHEMATIC DIAGRAM ....................................... 6
4. PCB CONNECTION DIAGRAM.......................... 14
5. PCB PARTS LIST ............................................... 22
6. ADJUSTMENT .................................................... 25
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. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923
c
PIONEER ELECTRONIC CORPORATION 1998
7. GENERAL INFORMATION ................................ 26
7.1 IC ................................................................. 26
7.2 DISASSEMBLY ........................................... 27
7.3 BLOCK DIAGRAM....................................... 28
8. PANEL FACILITIES AND SPECIFICATIONS.... 29
T - IZK APR. 1998 Printed in Japan
Page 2
A-307R, A-207R
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
Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may
cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).
When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with
the solder. Also, when soldering do not inhale any smoke or fumes produced.
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.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
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.
Reading should
not be above
0.5mA
Earth
ground
Device
under
test
Also test with
plug reversed
(Using AC adapter
plug as required)
Leakage
current
tester
Test all
exposed metal
surfaces
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.
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
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.
on the schematics and on the parts list
AC Leakage Test
2
Page 3
A-307R, A-207R
2. EXPLODED VIEWS AND PARTS LIST
NOTES:• Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
2.1 PACKING
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.
•
MVXJ type Only
19
20
8
10
11
17
FRONT
12
13
Except
MVXJ type
18
6
7
9
16 (SAMXJ
type Only)
5
15
(SAMXJ type
Only)
1 (Except
MYXJ/GR type)
2 (MYXJ/EW and
MYXJ/GR types
Only)
3 (MYXJ/EW
type Only)
4 (MYXJ/EW,
MYXJ/GR and
MVXJ types
Only)
14 (SAMXJ
type Only)
21 (SDXJ
type Only)
(1) PACKING PARTS LIST
Mark No. Description Part No.
1 Operating Instructions See Contrast table(2)
(English)
2 Operating Instructions See Contrast table(2)
(German)
3 Operating Instructions See Contrast table(2)
(French/Italian/Dutch/Swedish/Spanish/Portugese)
NSP 4 Warranty Card See Contrast table(2)
5 Remote Control Unit (CU-A014) AXD7163
6 Battery Cover AZN2249
NSP 7 Dry Cell Battery (R6P,AA) VEM-013
8 Side Pad L AHA7205
9 Side Pad R AHA7206
10 Sub Pad AHA7218
11 Packing Case See Contrast table(2)
NSP 12 Literature Bag AHG1180
13 Packing Sheet AHG7015
14 Operating Instructions See Contrast table(2)
(Chinese)
15 Caution Label 220V See Contrast table(2)
16 Case Label See Contrast table(2)
NSP 17 Air Cap See Contrast table(2)
18 Power Cord See Contrast table(2)
19 Power Cord with Fuse See Contrast table(2)
20 Fuse (T5A) See Contrast table(2)
21 Operating Instructions See Contrast table(2)
(Spanish/Chinese)
(2) CONTRAST TABLE
A-307R/MYXJ/EW, MYXJ/GR, SAMXJ, SDXJ, A-207R/MYXJ/EW, MYXJ/GR and MVXJ are constructed the same
except for the following :
.oNtraP
kraM.oNnoitpircseDdnalobmyS
1
2
3
PSN
4
11
41
51
61
PSN
71
81
91
02
12
WE/JXYMRG/JXYMJXMASJXDSWE/JXYMRG/JXYMJXVM
)hsilgnE(snoitcurtsnIgnitarepO
)namreG(snoitcurtsnIgnitarepO
/nailatI/hcnerF(snoitcurtsnIgnitarepO
)eseugutroP/hsinapS/hsidewS/hctuD
draCytnarraW
esaCgnikcaP
)esenihC(snoitcurtsnIgnitarepO
V022lebaLnoituaC
lebaLesaC
paCriA
droCrewoP
esuFhtiwdroCrewoP
)A5T(esuF
snoitcurtsnIgnitarepO
)esenihC/hsinapS(
8317BRA
3817CRA
4817CRA
9007YRA
3657DHA
desutoN
desutoN
desutoN
desutoN
4511GDA
desutoN
desutoN
desutoN
desutoN
3817CRA
desutoN
9007YRA
3657DHA
desutoN
desutoN
desutoN
desutoN
4511GDA
desutoN
desutoN
desutoN
2417BRA
desutoN
desutoN
desutoN
1857DHA
6817CRA
3001RRA
2307WRA
desutoN
8107GDA
desutoN
desutoN
desutoN
2417BRA
desutoN
desutoN
desutoN
4657DHA
desutoN
desutoN
desutoN
desutoN
8511GDA
desutoN
desutoN
5817CRA
8317BRA
3817CRA
4817CRA
9007YRA
1657DHA
desutoN
desutoN
desutoN
desutoN
4511GDA
desutoN
desutoN
desutoN
desutoN
3817CRA
desutoN
9007YRA
1657DHA
desutoN
desutoN
desutoN
desutoN
4511GDA
desutoN
desutoN
desutoN
8317BRA
desutoN
desutoN
9007YRA
1657DHA
desutoN
desutoN
desutoN
7801GHA
desutoN
6511GDA
6401KEA
desutoN
skrameRR703-AR702-A
3
Page 4
A-307R, A-207R
2.2 EXTERIOR
36
39
26
39
30 or 45
31
28
38
39
18
37
33
41
31
32
16
34
35
27
39
26
39
A-307R
Only
24
39
A-307R/
SAMXJ and
SDXJ Types
Only
3
1
5
2
9
22
14
27
41
25
11
39
29 or 44
20
A-307R Only
12
6
17
19
43
19
39
15
8
4
15
15
7
13
39
23
42
39
15
A-307R/SAMXJ
and SDXJ
Types Only
39
39
23
23
39
A-307R
/SAMXJ
Type Only
46
40
17
39
21
21
14
39
20
A-307R Only
4
Page 5
(1) EXTERIOR PARTS LIST
A-307R, A-207R
Mark No. Description Part No.
1 FRONT L Assy AWX7123
2 FRONT R Assy AWX7124
3 OPT Assy AWX7125
4 AC PRIMARY Assy See Contrast table(2)
NSP 5 HEADPHONE Assy AWX7114
6 VOLUME Assy AWX7118
7 AF Assy See Contrast table(2)
8 Fuse (FU1) See Contrast table(2)
9 Flexible Cable (19P) ADD7032
(AF CN202-FRONT R CN601)
10 • • • • •
11 Power Transformer (T1) See Contrast table(2)
NSP 12 Chassis ANA7064
13 Rear Panel See Contrast table(2)
14 Insulator PNW2766
15 Screw ABA1018
16 Screw ABA1027
17 Screw (4 × 10) ABA7047
18 Nut ABN-065
19 PCB Support AEC7006
20 Rubber Spacer See Contrast table(2)
NSP 21 PCB Holder AEC7057
NSP 22 Cord Clamp F AEC7134
23 PCB Mold AMR2533
NSP 24 Damping Plate See Contrast table(2)
NSP 25 Shield Plate ANK7043
Mark No. Description Part No.
26 Screw PBA1096
27 LED Lens AAK2459
28 IR Filter AAK7532
29 LED Lens T See Contrast table(2)
30 Name Plate See Contrast table(2)
31 Rotary Knob A AAB7148
32 Rotary Knob B AAB7149
33 Volume Knob AAB7150
34 Speaker Button AAD7435
35 Power Joint AAD7439
36 Bonnet Case ANE7183
37 Panel Base AMB7489
38 Front Panel See Contrast table(2)
39 Screw BBZ30P080FZK
40 Screw BCZ30P060FCC
41 Nut NK90FUC
42 Voltage Selector (S2) See Contrast table(2)
43 Fuse (FU2, FU3 : 2A) See Contrast table(2)
44 LED Lens A See Contrast table(2)
45 PIONEER Badge See Contrast table(2)
46 Label (Rear Base) See Contrast table(2)
(2) CONTRAST TABLE
A-307R/MYXJ/EW, MYXJ/GR, SAMXJ, SDXJ, A-207R/MYXJ/EW, MYXJ/GR and MVXJ are constructed the same
except for the following :
.oNtraP
kraM.oNnoitpircseDdnalobmyS
4
7
8
8
8
8
11
11
31
02
PSN
42
92
03
83
24
34
44
54
64
WE/JXYMRG/JXYMJXMASJXDSWE/JXYMRG/JXYMJXVM
yssAFA
yssAYRAMIRPCA
)A2:1UF(esuF
)A5.2:1UF(esuF
)A3.6:1UF(esuF
)A52.1:1UF(esuF
)V032-022CA:1T(remrofsnarTrewoP
remrofsnarTrewoP
)V042/V022/V721-021/V011CA:1T(
lenaPraeR
recapSrebbuR
etalPgnipmaD
TsneLDEL
etalPemaN
lenaPtnorF
)2S(rotceleSegatloV
)A2:3UF,2UF(esuF
AsneLDEL
egdaBREENOIP
)esaBraeR(lebaL
3117XWA
9117XWA
5201KER
desutoN
desutoN
desutoN
8817STA
desutoN
3467CNA
4307CEA
6127RMA
4457KAA
4007MAA
4117BNA
desutoN
desutoN
desutoN
desutoN
desutoN
3117XWA
9117XWA
5201KER
desutoN
desutoN
desutoN
8817STA
desutoN
3467CNA
4307CEA
6127RMA
4457KAA
4007MAA
4117BNA
desutoN
desutoN
desutoN
desutoN
desutoN
5117XWA
9117XWA
desutoN
6201KER
desutoN
desutoN
desutoN
9817STA
5467CNA
4307CEA
6127RMA
4457KAA
4007MAA
4117BNA
705-XKA
5201KER
desutoN
desutoN
9941WRP
5117XWA
9117XWA
desutoN
desutoN
0301KER
desutoN
desutoN
9817STA
4467CNA
4307CEA
6127RMA
4457KAA
4007MAA
4117BNA
705-XKA
5201KER
desutoN
desutoN
desutoN
3117XWA
7117XWA
desutoN
desutoN
desutoN
3201KER
0917STA
desutoN
9367CNA
desutoN
desutoN
desutoN
desutoN
3947BMA
desutoN
desutoN
7357KAA
5571MAP
desutoN
3117XWA
7117XWA
desutoN
desutoN
desutoN
3201KER
0917STA
desutoN
9367CNA
desutoN
desutoN
desutoN
desutoN
3947BMA
desutoN
desutoN
7357KAA
5571MAP
desutoN
3117XWA
7117XWA
desutoN
desutoN
desutoN
3201KER
0917STA
desutoN
9367CNA
desutoN
desutoN
desutoN
desutoN
3947BMA
desutoN
desutoN
7357KAA
5571MAP
desutoN
skrameRR703-AR702-A
5
Page 6
1
23
A-307R, A-207R
3. SCHEMATIC DIAGRAM
3.1 OVERALL CONNECTION DIAGRAM
A
4
B
HEADPHONE ASSY
AWX7114
B
F
FRONT R ASSY
AWX7124
D
AF ASSY
AWX7119(A-307R)
AWX7117(A-207R)
C
451
A
VOLUME ASSY
AWX7118
D
6
1234
Page 7
5
678
A-307R, A-207R
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PAR TS LIST" or "PCB PARTS LIST".
E
FRONT L ASSY
AWX7123
A
G
OPT ASSY
AWX7125
POWER TRANSFORMER
ATS7188 : A-307R/MYXJ/EW, MYXJ/GR ( )
ATS7190 : A-207R/MYXJ/EW, MYXJ/GR and NVXJ
A-307R
(13)
(15)
(17)
C
AC PRIMARY ASSY
AWX7113
(MYXJ/EW, MYXJ/GR, MVXJ)
AWX7115
(SDXJ, SAMXJ)
MYXJ/EW, MYXJ/GR,
MVXJ types
S2 : AKX-507
VOLTAGE
SELECTOR
MYXJ/EW, MYXJ/GR types
SDXJ type
SAMXJ type
A-307R/SDXJ, SAMXJ
ADG1154 : MYXJ/EW, MYXJ/GR types
AC POWER CORD
ADG1156 : MVXJ type
ADG1158 : SDXJ type
ADG7018 : SAMXJ type
B
C
POWER TRANSFORMER
ATS7189
5
D
7
6
7
8
Page 8
1
23
A-307R, A-207R
3.2 VOLUME AND HEADPHONE ASSEMBLIES
A
B
HEADPHONE ASSY
AWX7114
B
D
4
J551A
: AUDIO SIGNAL ROUTE
VOLUME ASSY
A
C
AWX7118
J3
E
D
CN203
D
8
A
B
1234
Page 9
1
3.3 AC PRIMARY ASSY
234
A-307R, A-207R
LIVE
TO POWER
TRANSFORMER
NEUTRAL
• NOTE FOR FUSE REPLACEMENT
CAUTION -
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE WITH SAME TYPE AND RATINGS ONLY.
AC PRIMARY ASSY
C
AWX7113 (MYXJ/EW, MYXJ/GR, MVXJ)
AWX7115 (SDXJ, SAMXJ)
SDXJ, SAMXJ
types
REK1025
T2AL250V
MYXJ/EW,
MYXJ/GR,
MVXJ types
POWER
S801
ASG1035
REK1025
T2AL250V
MYXJ/EW, MYXJ/GR, MVXJ types
MYXJ/EW, MYXJ/GR, types
SDXJ type
SAMXJ type
TO
AC POWER
CORD
A
B
A-307R
SDXJ, SAMXJ
C
TO S2
VOLTAGE
SELECTOR
D
C
1
2
3
4
9
Page 10
1
A-307R, A-207R
3.4 AF ASSY
A
23
: AUDIO SIGNAL ROUTE
AF ASSY
D
AWX7119 (A-307R)
AWX7117 (A-207R)
4
C313,C337 :
B
C
IDLE ADJ.
(L CH)
C314,C338 :
IDLE ADJ.
(R CH)
D
CN501
A
10
D
1234
Page 11
5
678
A-307R, A-207R
A
CAUTION : FOR CONTINUED PROTECTION AGAINST
RISK OF FIRE. REPLACE ONLY WITH
SAME TYPE NO. 491001 MFD, BY
LITTELFUSE INK. FOR IC454 (AEK7009).
A-307R A-207R
C451
C452
ACH7048
(10000/42)
ACH7049
(10000/42)
ACH7080
(6800/42)
ACH7081
(6800/42)
B
Q333–Q336:
R361–R366:
C321–C324:
TO POWER
TRANSFORMER
C
F
5
CN601
D
J551
B
D
6
7
8
11
Page 12
1
23
A-307R, A-207R
3.5 FRON L, FRONT R AND OPT ASSEMBLIES
4
A
B
G
OPT ASSY
AWX7125
FRONT L ASSY
E
AWX7123
CN502
A
C
CN202
D
D
FRONT L ASSY
S702 : LOUDNESS
S703 : SPEAKER A
S704 : SPEAKER B
12
E
1234
GF
Page 13
5
678
A-307R, A-207R
A
FRONT R ASSY
F
AWX7124
B
FRONT R ASSY
S601 : INPUT SELECTOR
CD
TUNER
PHONE
LINE
TAPE1/MD
S602 : DIRECT
S603 : TAPE2 MONITOR
INPUT
SELECTOR
C
D
F
5
6
7
8
13
Page 14
1
23
A-307R, A-207R
4. PCB CONNECTION DIAGRAM
4.1 VOLUME ASSY
NOTE FOR PCB DIAGRAMS :
1. Part numbers in PCB diagrams match those in the schematic
A
diagrams.
2. A comparison between the main parts of PCB and schematic
diagrams is shown below.
Symbol In PCB
Diagrams
BCE
BCE
D
Symbol In Schematic
Diagrams
BCEBCE
BCE
DGGSS
BCE
DGS
Part Name
Transistor
Transistor
with resistor
Field effect
transistor
4
3. 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.
4. View point of PCB diagrams.
Connector
Capacitor
SIDE A
P.C.Board
Chip Part
SIDE B
Resistor array
B
3-terminal
regulator
Q513,Q514
E
J3
VOLUME ASSY
A
SIDE A
VR501
C
CN203
D
VOLUME ASSY
A
(ANP7232-A)
Q504,Q501
Q502,Q503
SIDE B
D
14
A
1234
Q506,Q505
Q508,Q507
Q510,Q509
(ANP7232-A)
Page 15
1
234
4.2 HEADPHONE AND AC PRIMARY ASSEMBLIES
A-307R, A-207R
A
B
POWER
TRANSFORMER
VOLTAGE
SELECTOR
(SDXJ and SAMXJ
Types)
SIDE A
AC POWER
CORD
HEADPHONE ASSY
SIDE A SIDE B
(ANP7232-A)
AC PRIMARY ASSY
C
D
J551A
HEADPHONE ASSY
B
(ANP7232-A)
B
SIDE B
1
AC PRIMARY ASSY
C
2
(ANP7232-A)
C
D
(ANP7232-A)
B C
3
4
15
Page 16
1
A-307R, A-207R
4.3 AF ASSY
A
AF ASSY
D
B
23
4
C
D
POWER
TRANSFORMER
16
D
1234
Page 17
5
678
A-307R, A-207R
SIDE A
CN601
F
Q153
Q341
IC101
IC451-IC453
A
B
CN501
A
Q333-Q336
Q324,Q326
VR302
Q452
C
IC301
Q451
VR301
Q323,Q325
IC454
D
J551
B
(ANP7232-A)
5
6
7
D
8
17
Page 18
1
A-307R, A-207R
D
A
B
AF ASSY
23
4
C
D
18
D
1234
Page 19
5
678
A-307R, A-207R
SIDE B
Q151
IC151
Q152
Q338,Q337
Q340,Q339
Q102
Q101
Q104
Q103
A
B
Q332
Q328,Q327
Q318,Q330
Q322,Q320
Q316,Q314
Q312,Q310
Q304,Q303
Q311,Q309
Q315,Q313
Q321,Q319
Q317,Q329
Q331,Q343
C
D
(ANP7232-A)
5
6
7
D
8
19
Page 20
1
A-307R, A-207R
4.4 FRONT L ASSY
A
FRONT L ASSY
E
G
23
J603A
CN502
A
F
4
J602
VR751
VR752
Q707
Q708
B
FRONT L ASSY
E
C
SIDE A
(ANP7231-A)
Q704,Q705
Q702,Q703
Q701,IC751
(ANP7231-A)
SIDE B
D
E
20
1234
Page 21
1
234
4.5 FRONT R AND OPT ASSEMBLIES
A-307R, A-207R
FRONT R ASSY
F
J602A
E
FRONT R ASSY
F
SIDE A
CN202
D
A
IC601
VR601
B
(ANP7231-A)
E
SIDE B
OPT ASSY
G
J603
SIDE A SIDE B
1
(ANP7231-A)
Q601-Q606
Q614-Q616
Q608-Q613
(ANP7231-A)
OPT ASSY
G
(ANP7231-A)
F
2
3
G
4
21
C
D
Page 22
A-307R, A-207R
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%).
560 Ω→56 × 10
47k Ω→47 × 103→ 473 ........................................................RD1/4PU 4 7 3 J
0.5 Ω→R50 ..................................................................................... RN2H
1 Ω→1R0 ..................................................................................... RS1P
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5.62k Ω→ 562 × 10
LIST OF WHOLE PCB ASSEMBLIES
kraMnoitpircseDdnalobmyS
PSN
PSN
PSN
YSSAXELPMOCFA
YSSAEMULOV
YSSAENOHPDAEH
YSSAYRAMIRPCA
YSSAFA
YSSALORTNOC
YSSALTNORF
YSSARTNORF
YSSATPO
1
→ 561 ........................................................RD1/4PU 5 6 1 J
R 5 0
1 R 0
1
→ 5621 ......................................................RN1/4PC 5 6 2 1 F
.oNtraP
WE/JXYMRG/JXYMJXMASJXDSWE/JXYMRG/JXYMJXVM
8537MWA
8117XWA
4117XWA
3117XWA
9117XWA
3107GWA
3217XWA
4217XWA
5217XWA
8537MWA
8117XWA
4117XWA
3117XWA
9117XWA
3107GWA
3217XWA
4217XWA
5217XWA
9537MWA
8117XWA
4117XWA
5117XWA
9117XWA
3107GWA
3217XWA
4217XWA
5217XWA
9537MWA
8117XWA
4117XWA
5117XWA
9117XWA
3107GWA
3217XWA
4217XWA
5217XWA
7537MWA
8117XWA
4117XWA
3117XWA
7117XWA
3107GWA
3217XWA
4217XWA
5217XWA
K
K
skrameRR703-AR702-A
7537MWA
8117XWA
4117XWA
3117XWA
7117XWA
3107GWA
3217XWA
4217XWA
5217XWA
7537MWA
8117XWA
4117XWA
3117XWA
7117XWA
3107GWA
3217XWA
4217XWA
5217XWA
Mark No. Description Part No.
VOLUME ASSY
A
SEMICONDUCTORS
Q513,Q514 2SK246
Q501-Q510 2SK303
Q511 DTC124EK
D505,D506,D509,D510 1SS352
D501-D504,D507,D508 1SS355
CAPACITORS
C501,C502 CCSQCH271J50
C513,C514 CEAT100M50
C516 CEAT330M25
C515 CKCYF103Z50
C503,C504 CFTYA473J50
C511 CKSQYF473Z50
RESISTORS
R530 RS1/10S100J
VR501 ACX7021
Other Resistors RS1/10S J
OTHERS
CN501 16P SOCKET KP200TA16L
CN502 CONNECTOR 7P KPE7
PCB BINDER VEF1040
Mark No. Description Part No.
HEADPHONE ASSY
B
CAPACITORS
C551,C552 CKSQYB392K50
OTHERS
3P CABLE HOLDER 51063-0305
J552 CORD WITH PLUG DE005WE0
JA501 HEADPHONE JACK RKN1002
J551 JUMPER WIRE D15A03-150-2651
AC PRIMARY ASSY
C
(1) CONTRAST TABLE
AWX7113 and AWX7115 are constructed the same except
for the following :
Mark Symbol and Description
H3-H6 FUSE CLIP Not used AKR7001
3P OUTLET Not used AKP1053
Part No.
AWX7113 AWX7115
Remarks
(2) PARTS LIST FOR AWX7113
SWITCH
S801 ASG1035
22
CAPACITORS
C801,C802 (0.01µF/AC250V) ACG7020
OTHERS
CN801 AC INLET AKP7005
H1,H2 FUSE CLIP AKR7001
Page 23
A-307R, A-207R
Mark No. Description Part No.
AF ASSY
D
(1) CONTRAST TABLE
AWX7119 and AWX7117 are constructed the same except
for the following :
Mark Symbol and Description
C451 (10000µF/42V) ACH7048 Not used
C451 (6800µF/42V) Not used ACH7080
C452 (10000µF/42V) ACH7049 Not used
C452 (6800µF/42V) Not used ACH7081
Part No.
AWX7119 AWX7117
Remarks
(2) PARTS LIST FOR AWX7119
SEMICONDUCTORS
IC454 (1A) AEK7009
IC453 BA178M06T
IC451 BA178M15T
IC452 NJM79M15FA
Q452 2SA1837
Q451 2SC4793
Q323,Q324 IRF530
Q325,Q326 IRF9530
D451 D5SBA20
D452-D455,D459,D460 S5566G(TPB2)
IC101 TC9163AN
IC301 UPC4570C
IC151 UPC4570G2
Q311,Q312,Q329,Q330 2SA1162
Q337,Q338 2SA1162
Q313,Q314,Q321,Q322 2SA1255
Q309,Q310,Q327,Q328 2SC2712
Q339,Q340 2SC2712
Q315,Q316,Q319,Q320 2SC3138
Q303,Q304 2SC3326
Q341 2SC5174P
Q101-Q104 2SK303
Q151 DTA124EK
Q152 DTC124EK
Q153 DTC124ES
Q331,Q332,Q343 DTC143EK
Q333-Q336 DTC143ES
Q317,Q318 IMX1
D101-D104,D151,D301-D310 1SS355
D401-D404 1SS355
D461 S5566G(TPB2)
D311,D312 UDZ15B
D457,D458 UDZ36B
D456 UDZ4.7B
D341 UDZS5.1B
D462 UDZS5.6B
COILS
L151-L154 LCTA221J3225
RELAYS
RY401-RY403 ASR7014
Mark No. Description Part No.
CAPACITORS
C451 (10000µF/42V) ACH7048
C452 (10000µF/42V) ACH7049
C329,C331 CCCSL101K2H
C313-C316,C337-C340 CCSQCH121J50
C153,C154 CCSQCH151J50
C303,C304 CCSQCH221J50
C163,C164 CCSQCH390J50
C101-C110 CCSQCH470J50
C334 CEANP100M16
C471 CEANP1R0M2A
C172 CEANP1R0M50
C333 CEANP470M10
C155,C156,C167,C168 CEAT100M50
C317-C320,C335,C336 CEAT100M50
C453-C458,C465,C466,C469 CEAT100M50
C461,C462 CEAT101M2A
C467,C468 CEAT1R0M50
C470 CEAT3R3M50
C169,C170 CEAT470M25
C459,C460,C463,C464 CEAT470M50
C157,C158 CEAT471M6R3
C301,C302,C305,C306 CEBA100M50
C307,C308 CEBA221M25
C321-C324 CFTYA224J50
C173 CFTYA564J50
C330,C332 CKCYB331K2H
C165,C166 CKSQYB222K50
C111-C113,C171,C341 CKSQYF473Z50
C472 CKSQYF473Z50
C159,C160 CQMA243J50
C161,C162 CQMBA823J50
RESISTORS
R311,R312 RDR1/4VM152J
R301,R302 RDR1/4VM240J
R303,R304 RDR1/4VM561J
R143 RS1/10S100J
R133,R134,R171,R172 RS1/10S101J
R351-R354,R452 RS1/10S101J
R317,R318,R331,R332 RS1/10S122J
R357-R360 RS1/10S151J
R377,R378,R453 RS1/10S153J
R465-R470 RS1/10S161J
R361-R366 RS1/10S1R5J
R339-R346 RS1/10S221J
R454 RS1/10S273J
R460 RS1/10S2R2J
R355,R356 RS1/10S432J
R459 RS1/10S470J
R464 RS1/10S4R7J
R379,R380 RS1/10S682J
R451 RS1LMF270J
R401,R402 RS1LMF331J
R461-R463 RS1LMF390J
R403 RS1LMF821J
R373-R376 RS1LMFR22J
VR301,VR302 (2.2kΩ) VCP1123
Other Resistors RS1/10S J
23
Page 24
A-307R, A-207R
Mark No. Description Part No.
OTHERS
3P CABLE HOLDER 51063-0305
SCREW ABA1007
SCREW ABA1052
CN101,CN102 8P PIN JACK AKB7023
8P SPEAKER TERMINAL AKE1011
HEAT SINK M ANH-813
HEAT SINK B ANH1021
CN202 FFC CONNECTOR 19P HLEM19S-1
CN203 16P PLUG KM200TA16
JA401 REMOTE CONTROL JACK RKN1004
PCB BINDER VEF1040
KN101,KN201,KN301,KN451 VNF1084
EARTH METAL FITTING
FRONT L ASSY
E
SEMICONDUCTORS
IC751 UPC4570G2
Q707,Q708 2SC1845
Q705 2SC2712
Q701-Q704 DTC124EK
D704 1SS355
D701,D703,D705 SLP9118C51H
Mark No. Description Part No.
D608-D612,D614-D621 1SS355
D607 SLP6118C51H
D601-D606 SLP9118C51H
SWITCHES
S602,S603 ASG1034
S601 ASX7008
CAPACITORS
C602 CEAT102M6R3
C604 CEJA2R2M50
C603,C611 CKSQYF103Z50
C607,C608 CKSQYF104Z25
C605,C606,C610 CKSQYF473Z50
RESISTORS
VR601 (500kΩ) ACS7029
Other Resistors RS1/10S J
OTHERS
X601 CERAMIC RESONATOR VSS1014
(4.19MHz)
13P CABLE HOLDER 51063-1305
CN601 19P FFC CONNECTOR 9607S-19F
J602 JUMPER WIRE D15A13-125-2651
SWITCHES
S702-S704 ASG1034
CAPACITORS
C753,C754,C761,C762 CCSQCH101J50
C767,C768 CCSQCH221J50
C751,C752,C755,C756 CEAL100M50
C763,C764 CEALR10M50
C759,C760 CEALR47M50
C757,C758 CFTYA153J50
C701 CKSQYF104Z25
RESISTORS
R751,R752 RS1/10S101J
VR751,VR752 (30kΩ) ACS7028
Other Resistors RS1/10S J
OTHERS
3P CABLE HOLDER 51063-0305
7P CABLE HOLDER 51063-0705
13P CABLE HOLDER 51063-1305
J603 JUMPER WIRE D15A03-100-2651
J3 JUMPER WIRE D15A07-200-2651
FRONT R ASSY
F
SEMICONDUCTORS
IC601 PD5443A
Q609 2SA1162
Q610 2SC2712
Q611-Q613,Q615,Q616 DTA124EK
Q601-Q606,Q608,Q614 DTC124EK
OPT ASSY
G
OTHERS
3P CABLE HOLDER 51063-0305
REMOTE RECEIVER UNIT GP1U27X
24
Page 25
6. ADJUSTMENT
6.1 IDLE CURRENT ADJUSTMENT
¶ CAUTION : Heatsinks’ (Q323–Q326) DC level is equal to +B or -B.
Don’t touch them or you will be electric shocked.
1. Connect the measuring instrument as shown in Fig.6-1. (R373 or R374)
2. Turn the POWER switch to ON.
3. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 10mV ± 1mV.
4. Ages for 5 minutes.
5. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 11mV ± 1mV.
DC Voltmeter DC Voltmeter
A-307R, A-207R
R373 R374
R375 R376
Heat Sink
VR301 VR302
Heat Sink
AF ASSY
SIDE A
Heat Sink
Heat Sink
CN202
Fig.6-1 Adjustment Method
25
Page 26
A-307R, A-207R
7. GENERAL INFORMATION
7.1 IC
7 PD5443A (FRONT R ASSY : IC601)
¶¶
¶
REMOTE CONTR OL AMP MICROCOMPUTER
¶¶
¶¶
¶ Pin Assignment (Top view)
¶¶
• The information shown in the list is basic information and
may not correspond exactly to that shown in the schematic
diagrams.
P17/S
P16/CLK
5/SOUT
P1
P14/S
P13/T
P12/T
P27/IN
P26/IN
P25/IN
P24/IN
P23/IN
P22/IN
P21/IN
P20/IN
V
X
P5
P1
P1
V
RDY
REF
X
OUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
SR
STB
CLK
DATA
CD-IND
TU-IND
PH-IND
LI-IND
T1-IND
SPA-IND
SPB-IND
LOU-IND
NC
NC
DIR-IND
T2-IND
F-MUTE
REF
V
X
IN
X
OUT
V
SS
M-CTRL
P-CTRL
DIRECT
WAKE UP
FUNC2
FUNC1
V-DOWN
RSEL2
RSEL1
BACK UP
3
IN
1
0
1
0
7
6
5
4
3
2
1
0
IN
SS
NC
LOUD
P-DET
NC
V-UP
NC
RST
SPA
SPB
V
T2
CC
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
P5
2
P0
7
P0
6
P0
5
P0
4
P0
3
P0
2
P0
1
P0
0
P4
3
P4
2
P4
1
P4
0
P33/CNTR
P32/CNTR
P31/INT
P30/INT
RESET
P51/X
COUT
P50/X
CIN
V
CC
1
0
1
0
¶¶
¶ Pin Function
¶¶
No. Pin name I/O Function
1P53 I Remote control signal input pin.
2
P1
7/SRDY
O STB for TC9163N.
3P16/CLK O CLOCK for TC9163N.
4P15/SOUT O DATA for TC9163N.
5P14/SIN O CD INDICATOR.
6P13/T1 O TUNER INDICATOR.
7P12/T0 O PHONO INDICATOR.
8P11 O LINE INDICATOR.
9P10 O TAPE1 INDICATOR.
10 P27/IN7 O SPEAKER-A INDICATOR.
11 P26/IN6 O SPEAKER-B INDICATOR.
12 P25/IN5 O LOUDNESS INDICATOR.
13 P24/IN4 O Not used.
14 P23/IN3 O Not used.
15 P22/IN2 O DIRECT INDICATOR.
16 P21/IN1 O TAPE2 INDICATOR.
17 P20/IN0 O FUNCTION switch MUTE.
18 VREF I Pulls up to 5V.
19 XIN I 4.19MHz .
20 XOUT O Ceramic vibrating and connecting terminal.
21 VSS - Digatal GND.
22 VCC - Power supply +5V.
23 P5
0/XCIN I SPEAKER-B KEY input.
No. Pin name I/O Function
24 P51/XCOUT I SPEAKER-A KEY input.
25
RESET
I Reset pin.
26 P30/INT0 I BACK UP detection pin. interrupt specification.
27 P31/INT1 I Not used.
28 P32/CNTR0 I REC selector input 1.
29 P33/CNTR1 I REC selector input 2. interrupt specification.
30 P40 O Volume DOWN data output.
31 P41 O Volume UP data output.
32 P42 I FUNCTION selector input 1.
33 P43 I FUNCTION selector input 2.
34 P0
0 I
WAKE UP input.
Key on wake up specification.
35 P01 O Not used.
36 P0
2 I
DIRECT KEY input.
Key on wake up specification.
37 P03 O Protection control pin.
38 P04 I Output error detection pin
39 P05 O MUTING control pin.
40 P0
6 I
LOUDNESS KEY input.
Key on wake up specification.
41 P07 O Not used.
42 P5
2 I TAPE2 KEY input.
26
Page 27
7.2 DISASSEMBLY
1 3
1
1
×2
1
1
1
×2
A-307R, A-207R
10
2
1
Front Panel
5
5
3
4
×2
5
×5
∗ : Be careful not to injure
the Front Panel.
13
Diagnose the
AF Assy.
11
2
Rear Panel
6 6 6
Chassis
7
9
PCB Support
×3
Cutting Pliers
8
Unhook lead wires.
7
×2
7
×3
Rear Panel
Chassis
For
Service
12
Screw for Rear Panel
27
Page 28
A-307R, A-207R
7.3 BLOCK DIAGRAM
D
401
SP-A
RY401
PROTECTION RY
POWER AMP
WRLC
39dB
DIRECT ENERGY MOS
DIRECT
ON/OFF
A
Q505
Q501
Q503
A
ON/OFF
LOUDNESS
SP-B
RY402
RY403
D
A
Q509
A
Q507
H.P
D
A
M
B
Q303
AND
TONE
VR501
JA501
OUTPUT
UNUSUAL
DETECTION
FUNC
MUTE
IC751
VR751
BALANCE
D
Q337-Q340
VR752EVR601
F
UP/DOWN
D
D451
+BL
–BL
+ 6
TO POWER STAGE
TO µ-COM
IC453
LED
D
+19
–15
IC451
IC452
RY
TO OP AMP
C
C
FU1T1
S801
D
D454
D455
D
REGULATOR
+BH
–BH
TO VOLTAGE STAGE
28
IC151
D
RIAA
PHONO
2.8mV
/50kΩ
FUNCTION
37dB
TUNER
D
IC101
LINECDTAPE1
200mV
/50kΩ
VOLUME
/MD
REC
200mV
/1kΩ
TAPE2
MONITOR
200mV
/50kΩ
REC
200mV
/1kΩ
CN101
CN102
D
TO FUNCTION SW
FROM UNUSUAL
OUTPUT DETECTION
DIRECT, LOUDNESS ON/OFF
KEY INPUTS
VOLUME UP/DOWN
FUNC MUTE ON/OFF
F
µ-COM
IC601
FROM FUNCTION SEL
TO PROTECTION RYSR INPUT
Page 29
8. PANEL FACILITIES AND SPECIFICATIONS
8.1 PANEL FACILITIES
REAR PANEL
SPEAKERS
RL
B
SIGNAL
PHONOINTUNERINCDINLINEINTAPE 1/MD
GND
L
R
REC PLAY REC PLAY
TAPE 2 MONITOR
OUT INOUT IN
AC INLET
L
R
R
A
L
CONTROL
OUT
A-307R, A-207R
1 GND (Turntable ground) terminal
2 PHONO terminals
3 TUNER terminals
4 CD terminals
5 LINE terminals
6 TAPE 1/MD REC (OUT) terminals
7 TAPE 1/MD PLAY (IN) terminals
8 TAPE 2 MONITOR REC (OUT) terminals
9 TAPE 2 MONITOR PLAY (IN) terminals
0 SPEAKERS B terminals (Right channel)
- SPEAKERS B terminals (Left channel)
= SPEAKERS A terminals (Right channel)
~ SPEAKERS A terminals (Left channel)
! CONTROL OUT jack
This jack is for output of control signals when operating other
components bearing the Î mark with the attached remote
control unit.
@ AC INLET jack
Connect power cord to here and an AC wall socket, or the AC
outlet of an audio timer.
If you are going to be away from home for a long period of time,
disconnect the unit from the wall socket.
NOTES:
If you use an other power cord than provided, we cannot
assume the liabilities in what may occur as a result of it.
(The provided power cord has a current capacity of 2.5 A.)
29
Page 30
A-307R, A-207R
FRONT PANEL
POWER
A SPEAKERS B
PHONES
STEREO AMPLIFIER
BASS
–
TREBLE
LOUDNESS DIRECT
+
–
+
MIN MAX
1 POWER (— OFF/_ ON) switch
Press to turn power to the unit ON and OFF.
This unit cannot be turned ON and OFF using the remote
control unit.
2 REMOTE CONTROL SENSOR window
3 VOLUME control
Use to adjust the volume level.
4 INPUT SELECTOR knob/indicators
Turn the knob clockwise or counterclockwise so that the
indicator lights for your desired input source. Turning the knob
clockwise causes the lit indicator to right. Turning counterclockwise causes it to left.
CD : For compact disc playback with a CD player.
TUNER : For AM or FM broadcast reception with a tuner.
PHONO : For record playback with a turntable.
LINE : Set to this position when listening to the
program from a component connected to the
LINE terminals.
TAPE 1/MD : For playback with a cassette deck or MD
recorder connected to TAPE 1/MD terminals.
VOLUME
CD
L
BALANCE
TUNER
PHONO
R
TAPE 1
LINE
INPUT SELECTOR
/MD
TAPE 2
MONITOR
TAPE 2
MONITOR
The illustration shows the A-307R.
5 TAPE 2 MONITOR button/indicator
Use when there is an adaptor component (graphic equalizer,
etc.) or cassette deck connected to the TAPE 2 MONITOR
terminals.
On : Indicator lights when using the adaptor component or
listening to the cassette deck.
Off : Indicator goes off when not in use.
NOTES:
÷ When no connections are made to the TAPE 2 MONITOR
terminals, or when they are not in use, be sure to set this
switch to the off position. (No sound will be heard if it is set
to the on position.)
÷ When the TAPE 2 MONITOR indicator is on and the INPUT
SELECTOR knob is not set to TAPE 1/MD, the signals
which are input through TAPE 2 MONITOR are then output
at TAPE 1/MD REC OUT.
6 BALANCE control
Should normally be left in the center position. Adjust balance
if the sound is louder from one of the speakers. If the right side
is louder, turn toward the L (left) position and if the left side is
louder, turn toward the R (right) position.
30
NOTE:
This control does not operate when the DIRECT button is in the
on position.
Page 31
A-307R, A-207R
7 DIRECT button/indicator
Use this button when you do not wish to pass the output from
input terminal equipment through the various frequency
adjusting circuits (BASS, TREBLE, BALANCE, LOUDNESS).
On : The indicator lights: The signals passing through the
input terminals are reproduced without passing through
the various frequency adjusting circuits. This results in
flat, pure sound which is a more faithful reproduction of
the input source.
Off : The indicator goes off: The signal passes through the
various frequency adjusting circuits.
8 LOUDNESS button/indicator
Use when listening at low volume levels.
On : The indicator lights: Boosts low and high frequencies to
give added punch to playback even at a low volume
level.
Off : The indicator goes off: Should normally be left in this
position.
NOTE:
This button does not operate when the DIRECT button is in the
on position.
9 TREBLE tone control
Use to adjust the high-frequency tone. The center position is
the flat (normal) position. When turned to the right, highfrequency tones are emphasized; when turned to the left, highfrequency tones are de-emphasized.
NOTE:
This control does not operate when the DIRECT button is in the
on position.
0 BASS tone control
Use to adjust the low-frequency tone. The center position is the
flat (normal) position. When turned to the right, low-frequency
tones are emphasized; when turned to the left, low-frequency
tones are de-emphasized.
NOTE:
This control does not operate when the DIRECT button is in the
on position.
- SPEAKERS B (ON/OFF) button/indicator
Use this button to listen to the speaker system connected to
SPEAKERS B terminals.
ON : The indicator lights. Sound is heard from the speaker
system.
OFF : The indicator goes off. No sound is heard from the
speaker system. Set to this position when listening with
headphones.
= PHONES jack
When using headphones, insert the plug into this jack.
NOTE:
The speakers continue to output sound even when headphones
are plugged into this jack.
To mute the sound from the speakers, press the SPEAKERS
button to OFF.
~ SPEAKERS A (ON/OFF) button/indicator
Use this button to listen to the speaker system connected to
SPEAKERS A terminals.
ON : The indicator lights. Sound is heard from the speaker
system.
OFF : The indicator goes off. No sound is heard from the
speaker system. Set to this position when listening with
headphones.
31
Page 32
A-307R, A-207R
REMOTE CONTROL
STANDBY/ON
CD TUNER TAPE
TAPE
SELECT
DECK ΙΙ
Ι
DECK
DISC
SELECT
–+
STATION
CD TUNER PHONO
TAPE 1 TAPE 2 LINE
STEREO AMPLIFIER
REMOTE CONTROL UNIT
TAPE
CD
TUNER
+
VOLUME
–
1 CD POWER button
Switches CD player power STANDBY/ON.
2 TAPE SELECT button
Selects the cassette No. (1 to 6) for multi-cassette changer.
3 DECK II button
To operate Deck II, press this button before pressing the
operating buttons. Also, when using a single deck, press this
button before pressing the operating buttons.
4 DECK I button
To operate Deck I, press this button before pressing the
operating buttons.
5 DISC SELECT button
Press this to select discs on a multi or twin tray compact disc
player.
6 Input selector button
Use to select the playback source.
CD : For compact disc playback with a CD player.
TUNER : For AM or FM broadcast reception with a tuner.
PHONO : For record playback with a turntable.
TAPE 1 : For playback with a cassette deck or MD deck
recorder connected to TAPE 1/MD terminals.
TAPE 2 : For playback with a cassette deck or adaptor
connected to TAPE 2 MONITOR terminals.
LINE : For playback with a component connected to the
LINE terminal.
7 TUNER POWER button
Switches TUNER power STANDBY/ON.
8 TAPE POWER button
Switches the cassette deck power STANDBY/ON.
(Can not turn ON/OFF some cassette decks.)
9 TAPE operation buttons
2, 3 : Playback in the direction of the arrows.
7 : Stop
1, ¡ : Tape fast forward/reverse.
0 CD player operation buttons
4 : Returns you to the start of the current track.
(Track search)
¢ : Takes you to the start of the next track.
(Track search)
7 : Stop
3 : Play
- STATION + (up), – (down) buttons
Calls each station number in sequence.
= VOLUME + (up), – (down) buttons
+ ........................................................ Increases the volume.
– ...................................................... Decreases the volume.
NOTE:
When the accessory remote control unit is used to operate
other Pioneer components with the Î mark, it cannot be used
to operate functions which do not correspond to the functions
listed on the remote control unit.
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Page 33
8.2 SPECIFICATIONS
A-307R, A-207R
Amplifier Section
Continuous power output
(both channels driven at 20 Hz to 20 kHz)∗∗
[A-307R]
T.H.D. 0.1 %, 8 Ω ..................................... 45 W + 45 W∗
T.H.D. 0.15 %, 4 Ω ................................... 65 W + 65 W∗
[A-207R]
T.H.D. 0.1 %, 8 Ω ..................................... 35 W + 35 W∗
T.H.D. 0.15 %, 4 Ω ................................... 45 W + 45 W∗
DIN Continuous power output
(both channels driven at 1 kHz)
[A-307R]
T.H.D. 1.0 %, 8 Ω ...................................... 55 W + 55 W
T.H.D. 1.0 %, 4 Ω ...................................... 80 W + 80 W
[A-207R]
T.H.D. 1.0 %, 8 Ω ...................................... 45 W + 45 W
T.H.D. 1.0 %, 4 Ω ...................................... 60 W + 60 W
Total harmonic distortion∗∗
[A-307R]
20 Hz to 20 kHz, 22.5 W, 8 Ω............................ 0.08 %∗
[A-207R]
20 Hz to 20 kHz, 17.5 W, 8 Ω............................ 0.08 %∗
÷ Power output specification is for when power supply is
230V.
Input sensitivity/impedance
PHONO (MM) ........................................... 2.8 mV/50 kΩ
CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR
.................................................................. 200 mV/50 kΩ
PHONO (MM) overload level
1 kHz, T.H.D. 0.1 %............................................ 150 mV
Output level/impedance
TAPE 1 REC, TAPE 2 MONITOR REC..... 200 mV/1 kΩ
Frequency response
PHONO (MM) ......................... 20 Hz to 20 kHz, ±0.5 dB
CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR
.................................................... 5 Hz to 100 kHz,
Tone control
BASS ....................................................... ±8 dB (100 Hz)
TREBLE................................................... ±8 dB (10 kHz)
Loudness contour (volume control set at –30 dB position)
........................................ +6 dB (100 Hz)/+4 dB (10 kHz)
Signal-to-Noise ratio (IHF short circuit, A network)
PHONO (MM, 5 mV input)................................... 85 dB∗
CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR
............................................................................ 106 dB∗
Signal-to-Noise ratio (DIN, continuous power/50 mW)
PHONO (MM) ............................................. 71 dB/67 dB∗
CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR
................................................................... 91 dB/71 dB∗
+0
–3
dB∗
Power Supply/Miscellaneous
Power requirements ................... AC 220 – 230 V, 50/60 Hz
Power consumption
[A-307R] ................................................................140 W
[A-207R] ................................................................130 W
Dimensions (including knobs and other protruding parts)
...................................... 420 (W) x 114 (H) x 307 (D) mm
Weight (without package)
[A-307R] .................................................................5.9 kg
[A-207R] .................................................................4.7 kg
Accessories
Remote control unit............................................................. 1
Batteries (AA/R6P)..............................................................2
Power cord (Rated current 2.5 A) ....................................... 1
Operating instructions .........................................................1
Warranty card .....................................................................1
NOTE:
Specifications and design are subject to possible modifications without notice, due to improvements.
∗ Measured with DIRECT button set to on.
∗∗ Measured by Audio Spectrum Analyzer.
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