Page 1
STEREO CD CASSETTE DECK RECEIVER
XR-A370SW
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
ORDER NO.
RRV2223
Type
DDXJ ‡
Model
XR-A370SW
Power Requirement
AC110-127V/220-230V/240V With the voltage selector
The voltage can be converted by
the following method.
¶ This service manual should be used together with the following manual(s):
Model No. Order No. Remarks
XR-A370/KUCXJ RRV2188
CONTENTS
1. CONTRAST OF MISCELLANEOUS PARTS
2. ADJUSTMENT
3. SCHEMATIC DIAGRAM
PIONEER 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
PIONEER CORPORATION 1999
......................................................
.......................................
........
2
5
6
T – ZZK OCT. 1999 Printed in Japan
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XR-A370SW
1. CONTRAST OF MISCELLANEOUS PARTS
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 product are used for disassembly.
Reference Nos. indicate the pages and Nos. in the service manual for the base model.
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
47k
0.5
1
56 x 10
47 x 103
R50
1R0
1
561
473
RD1/4PU J
RD1/4PU J
RN2H K
RS1P K
561
473
R50
1R0
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5.62k RN1/4PC F562 x 10
CONTRAST TABLE
1
5621
5621
XR-A370SW/DDXJ and XR-A370/KUCXJ are constructed the same except for the following :
Part No.
Ref. No. Mark Symbol and Description XR-A370 XR-A370SW Remarks
/KUCXJ /DDXJ
PCB ASSEMBLIES
P6- 2 PRIMARY ASSY XWZ3224 XWZ3222
P6- 3 SUB TRANS ASSY XWZ3227 XWZ3226
P9- 1 DISPLAY ASSY XWZ3209 XWZ3204
P6- 5 FM/AM TUNER Module AXQ7065 AXQ7062
COMPLEX ASSY XWM3108 XWM3105
P4- 1 Power Cord ADG7022 ADG1158
P4- 6 NSP Dry Cell Battery (R6P, AA) VEM-013 Not used
P4-10 Packing Case XHD3082 XHD3085
P4-11 NSP Warranty Card ARY7033 Not used
P4-13 Operating Instructions (English/French) XRE3024 Not used
P6- 7 Power Transformer (AC120V) XTS3017 Not used
P6- 7 Power Transformer Not used XTS3015
P6- 8 Fuse (FU1 : 5A) REK1083 Not used
P6- 8 Fuse (FU1 : T4A) Not used AEK1060
P6- 9 NSP Fuse Caution Label XAX3122 Not used
P6-20 Rear Panel XNC3035 XNC3037
P6-35 NSP Fuse Label AAX7097 Not used
P6-43 NSP Getter XAX3138 XAX3140
P6-45 65 Label ORW1069 Not used
P9-17 Display Panel XAK3108 XAK3109
P9-19 FL Cover XAK3088 XAK3124
P9-24 POWER Button XAD3027 XAD3033
P9-30 Sub Panel XAK3080 XAK3081
PACKING SECTION
Operating Instructions Not used XRE3028
(English/Arabian/Russian)
SW Antenna Not used ADH7006 Accessories
EXTERIOR SECTION
(AC110-127V/220-230V/240V)
Fuse (FU2, FU3 : T2A) Not used AEK1057 *1
NSP Name Label Not used XAL3029 *2
FRONT PANEL SECTION
Notes : For PCB ASSEMBLIES, Refer to “CONTRAST OF PCB ASSEMBLIES” and “3. SCHEMATIC DIAGRAM”.
*1 Refer to “3. SCHEMATIC DIAGRAM”.
*2 Stick Name Label on Rear Panel.
2
Page 3
CONTRAST OF PCB ASSEMBLIES
PRIMARY ASSY
H
F
XWZ3222 and XWZ3224 are constructed the same except for the following :
Mark Symbol and Description
S1 VOLTAGE SELECTOR Not used XKX3001
NSP Y4 JUMPER WIRE Not used XDX3009
I
F
XWZ3226 and XWZ3227 are constructed the same except for the following :
Mark Symbol and Description
H3–H6 FUSE CLIP Not used AKR7001
SUB TRANS ASSY
R1 (2.2MΩ/ 1/2) RCN1080 Not used
AN1 1P AC INLET XKP3042 XKP3041
XWZ3224 XWZ3222
XWZ3227 XWZ3226
Part No.
Part No.
XR-A370SW
Remarks
Remarks
DISPLAY ASSY
J
XWZ3204 and XWZ3209 are constructed the same except for the following :
Mark Symbol and Description
D5594 Not used 1SS133
D5597 1SS355 Not used
Refer to XR-A370/MYXJ (XWZ3210).
*
XWZ3209 XWZ3204
Part No.
Remarks
*
3
Page 4
XR-A370SW
Mark No. Description Part No. Mark No. Description Part No.
÷
PCB PARTS LIST
FM/AM TUNER MODULE (AXQ7062)
A
F
SEMICONDUCTORS
IC6201 LA1832ML
IC6202 LC72131MD
Q6402 2SC2223
Q6203 2SC2705
Q6201, Q6202 2SC2712
Q6214, Q6403 2SC2714
Q6304, Q6306 2SD2114K
Q6404 2SK302
Q6401 3SK194
Q6301–Q6303 DTA124EK
Q6204 DTA124ES
Q6205 DTC124EK
D6202, D6303–D6308, D6310–D6312 1SS254
D6314, D6315 1SS254
D6302, D6309 1SS85
D6401, D6402 1T363
D6313 KV1561A-2
COILS AND FILTERS
L6303 ATA7001
L6304 ATA7002
L6404 ATC1003
L6401 ATC1020
L6402 ATC1021
F6204 ATF-107
F6203 ATF-119
F6401 ATF-155
F6206 ATF7008
F6202 ATF7017
L6206, L6208, L6403 LAU2R2J
L6301, L6302 LTA393J
TRANSFORMERS
T6201 ATB7008
T6401 ATE7002
C6224 CEAS100M50
C6243 CEAS101M16
C6231 CEAS1R0M50
C6227 CEAS220M16
C6236 CEAS2R2M50
C6216 CEAS330M16
C6262 CEAS3R3M50
C6219 CEAS470M10
C6244 CEAS470M16
C6249, C6250, C6265, C6266 CEAS4R7M50
C6258 CEJA470M16
C6215 CFTLA103J50
C6214 CFTLA224J50
C6211, C6254, C6403, C6406 CKSQYB102K50
C6201, C6205, C6210, C6213, C6237 CKSQYB103K50
C6276, C6278, C6280, C6281, C6302 CKSQYB103K50
C6308, C6312, C6314, C6318, C6319 CKSQYB103K50
C6402, C6409, C6417, C6418 CKSQYB103K50
C6251, C6252 CKSQYB153K50
C6303 CKSQYB222K50
C6203, C6259, C6301, C6305, C6306 CKSQYB223K50
C6311, C6315 CKSQYB223K50
C6228 CKSQYB472K50
C6209 CKSQYB473K50
C6310 CKSQYB562K50
C6230 CKSQYB821K50
C6218, C6223, C6255 CKSQYF103Z50
C6316 CKSQYF105Z16
C6220, C6226, C6242, C6256 CKSQYF223Z50
C6225 CKSQYF473Z50
RESISTORS
R6280 RD1/4PU101J
R6311, R6318, R6413, R6416, R6418 RS1/8S0R0J
R6906, R6909 RS1/8S0R0J
R6304 RS1/8S103J
R6401 RS1/8S470J
VR6201 (2.2kΩ/0.1W) RCP1046
Other Resistors RS1/10S&&&J
CAPACITORS
C6208 CCSQCH100D50
C6212, C6274, C6275, C6408 CCSQCH101J50
C6412 CCSQCH102J50
C6221, C6222, C6416 CCSQCH150J50
C6271 CCSQCH200J50
C6415 CCSQCH330J50
C6401, C6419 CCSQCH5R0C50
C6304 CCSQCH7R0D50
C6407 CCSQCK1R0C50
C6320, C6410 CCSQCK2R0C50
C6413 CCSQPH220J50
C6414 CCSQPH8R0D50
C6405 CCSQTH180J50
C6234, C6235 CEAL1R0M50
C6245 CEAL470M16
4
OTHERS
BN6202 TERMINAL 4-P AKE7051
X6202 CERAMIC RESONATOR ASS1066
(456kHz)
X6201 CRYSTAL RESONATOR ASS1093
(7.2MHz)
CN6201 14P SOCKET KP200IA14L
AM RF TUNING BLOCK AXX7039
AM RF TUNING BLOCK AXX7040
Page 5
2. ADJUSTMENT
Note : Adjustment of XR-A370SW/DDXJ are the same as those of XR-A370/KUCXJ except for the following:
AM Tuner SW Section
Set the mode selector to SW2.
Connect the wiring as shown in Fig. 1.
XR-A370SW
Step No.
1
Adjustment
Title
AM Front End
Sensitivity
Adjustment
AM SG (400Hz, 30% Mod.)
Frequency
(MHz)
Input Level
(dBµV/EMF)
Reception
Frequency
Display
Adjustment
Location
L630314MHz14 25-35
Specifications
Adjust so that the DC voltage between the
IC6201-Pin 20 and GND becomes at maximum
level.
Before adjustment, connect AM-ANT. and IEC-dummy ANT.. Signal input is through IEC-dummy ANT.. Connecting AM-ANT. follows Fig. 1.
AM antenna terminal
IEC dummy
400pF 320Ω
AM SG
R
125pF
PRODUCT
20µH
DC
voltmeter
R is 30Ω when SG output is 50Ω, 5Ω when SG output is 75Ω.
Fig. 1 SW adjustment wiring diagram
AM
antenna
terminal
FM
antenna
terminal
FM/AM TUNER MODULE (AXQ7062)
L6401
L6303
T6401
L6402
Fig. 2 Adjustment points
GRAY BLACK
YELLOW BLACK
T6201
VR6201
5
Page 6
1
XR-A370SW
3. SCHEMATIC DIAGRAM
3.1 FM/AM TUNER MODULE
A
RF AMP
OSC
23
MIX AMP
4
B
AM RF TUNING BLOCK
C
BUFFER
IF AMP
FM +B SW
SW DRIVE
PLL
D
FM/AM TUNER MODULE
A
F
(AXQ7062)
6
A
F
1234
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5
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST"
678
AF AMP
XR-A370SW
A
B
REGULATOR
AF AMP
CN3051
2/3
F
C
D
F
7
A
5
6
7
8
Page 8
1
23
XR-A370SW
3.2 PRIMARY and SUB TRANS ASSYS
A
B
4
AEK1057 (T2A)
T1 POWER TRANSFORMER
C
J81
J
D
8
H
I
F
1234
F
Page 9
5
678
XR-A370SW
A
H
F
PRIMARY ASSY
(XWZ3222)
B
• NOTE FOR FUSE REPLACEMENT
CAUTION -
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE WITH SAME TYPE AND RATINGS ONLY.
I
F
SUB TRANS ASSY
(XWZ3226)
AEK1060 (T4A)
XKP3041
C
AC POWER CORD
ADG1158
D
F
I
8
H
5
6
7
F
9
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