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Aiwa FR-A270 Servise Manual

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3 7 63 1515 0

SERVICE MANUAL

TE
L 13942296513
RADIO RECEIVER
www
.
http://www.xiaoyu163.com
x
ao
u163
y
i
S/M Code No. 09-015-356-7N1
http://www.xiaoyu163.com
FR-A270
2 9
8
FR-A275
Q Q
3
6 7
1 3
1 5
co
.
U(H),EZ(L,H)
9 4
2 8
U(H),HRJ(L),K(H)
EZ(H)
0 5
8
2 9
9 4
2 8
m
9 9
9 9

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Summary of Contents for Aiwa FR-A270

  • Page 1: Service Manual

    FR-A270 U(H),EZ(L,H) 3 7 63 1515 0 FR-A275 U(H),HRJ(L),K(H) EZ(H) SERVICE MANUAL L 13942296513 RADIO RECEIVER u163 S/M Code No. 09-015-356-7N1 http://www.xiaoyu163.com...
  • Page 2 http://www.xiaoyu163.com ACCESSORIES/PACKAGE LIST-1/1 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION 1 8B-RUB-905-010 IB,EZ(EGF)C 270<A270 EZLC,A270 EZHC> 1 8B-RUA-905-010 IB,EZ(EGF)C 275<A275 EZHC> 1 8B-RUB-907-010 IB,EZ(PHNCZ)C 270<A270 EZLC,A270 EZHC> 1 8B-RUA-907-010 IB,EZ(PHNCZ)C 275<A275 EZHC> 1 8B-RUB-906-010 IB,EZ(SID)C 270<A270 EZLC,A270 EZHC> 1 8B-RUA-906-010 IB,EZ(SID)C 275<A275 EZHC>...

  • Page 3: Specifications

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 FRA270U MODEL FRA270EZ MODEL • • Design and specifications are subject to change without Design and specifications are subject to change without notice notice FRA275U MODEL FRA275HRJ MODEL L 13942296513 • • Design and specifications are subject to change without Design and specifications are subject to change without notice notice...
  • Page 4 http://www.xiaoyu163.com ELECTRICAL MAIN PARTS LIST-1/2 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-010-391-010 CAP,E 10-35 M SM 87-012-348-080 CAP,CER 0.1-50 F 87-A21-200-010 IC LM8562 87-A10-576-080 CAP,CER 0.01-50 Z YF <EXCEPT A270 UHC,A270 EZLC,A270 EZHC> <A270 UHC,A270 EZLC,A270 EZHC>...
  • Page 5 http://www.xiaoyu163.com ELECTRICAL MAIN PARTS LIST-2/2 3 7 63 1515 0 • Regarding connectors, they are not stocked as they are not the initial order items. The connectors are available after they are supplied from connector manufacturers upon the order is received. CHIP RESISTOR PART CODE Chip Resistor Part Coding Figure...
  • Page 6 http://www.xiaoyu163.com BLOCK DIAGRAM-1/1 3 7 6 3 1 5 1 5 0 FM-ANT ROD-ANT MAIN C.B U2 KA22426D AM FM IF POWER IC FM RF AM/FM AUDIO AM RF IF+DET POWER AMP Q1,Q2 LM8562 (A275 MODEL) 1 3 9 4 2 2 9 6 5 1 3 LM8560 (A270 MODEL) AM-ANT AUDIO...
  • Page 7 http://www.xiaoyu163.com WIRING-1/2 (A275 MODEL) 3 7 6 3 1 5 1 5 0 BAND MAIN C. B (PARTS SIDE) VOLUME (BLK) (BLK) (RED) SNOOZE DOWN 1 3 9 4 2 2 9 6 5 1 3 SW8A SW9D SW9A SW8B SW9C SW9B Note...
  • Page 8 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-1/2 (A275 MODEL) 3 7 6 3 1 5 1 5 0 ANT1 FM ANT L5,TC1 L2,TC2 L3,TC3 L6,TC4 MAIN C.B AM TRACKING ADJ FM TRACKING ADJ FM FREQUENCY AM FREQUENCY FM IF ADJ RANGEADJ RANGEADJ IFT FM DES 1015GR PVC1 TUN-CAP,20P-160P-82P (UHC MODEL) C7 30P KHC, HRJLC, EHC MODEL...
  • Page 9 http://www.xiaoyu163.com WIRING-2/2 (A270 MODEL) 3 7 6 3 1 5 1 5 0 BAND MAIN C. B (PARTS SIDE) VOLUME (BLK) (BLK) CLOCK SET (RED) DOWN SNOOZE 1 3 9 4 2 2 9 6 5 1 3 ALARM SET SLEEP ALARM SW8A...
  • Page 10 http://www.xiaoyu163.com SCHEMATIC DIAGRAM-2/2 (A270 MODEL) 3 7 6 3 1 5 1 5 0 ANT1 FM-ANT L5,TC1 L2,TC2 L3,TC3 L6,TC4 MAIN C.B AM TRACKING ADJ FM TRACKING ADJ FM FREQUENCY AM FREQUENCY FM IF ADJ RANGE ADJ RANGE ADJ 1015GR VOLUME PVC1 TUN-CAP,20P-160P-82P (UHC MODEL) C7 27P (UHC MODEL)
  • Page 11 http://www.xiaoyu163.com TRANSISTOR ILLUSTRATION-1/1 3 7 63 1515 0 E B C 2SC1815GR 1015GR L 13942296513 u163 -11- http://www.xiaoyu163.com...
  • Page 12 http://www.xiaoyu163.com ELECTRICAL ADJUSTMENT-1/2 (A275 MODEL) 3 7 63 1515 0 MAIN C.B (PARTS SIDE) Test point TP3 Input point TP2 Input point TP1 ANT1 C1 L 13942296513 < TUNER SECTION > 1. AM IF Adjustment 5. FM Frequency Range Adjustment Settings: •...
  • Page 13 http://www.xiaoyu163.com ELECTRICAL ADJUSTMENT-2/2 (A270 MODEL) 3 7 63 1515 0 MAIN C.B (PARTS SIDE) Test point TP3 Input point TP2 Input point TP1 L 13942296513 < TUNER SECTION > 1. AM IF Adjustment 4. FM IF Adjustment Settings: • Test point TP3 Settings: •...
  • Page 14 http://www.xiaoyu163.com VOLTAGE CHART-1/1 3 7 63 1515 0 L 13942296513 u163 -14- http://www.xiaoyu163.com...

  • Page 15: Anode Connection

    http://www.xiaoyu163.com FL (LED, DISPLAY 0.9 INCH 12H/24H GREEN) GRID ASSIGNMENT/ANODE CONNECTION-1/1 GRID ASSIGNMENT 3 7 63 1515 0 L 13942296513 ANODE CONNECTION u163 -15- http://www.xiaoyu163.com...
  • Page 16 http://www.xiaoyu163.com IC BLOCK DIAGRAM-1/1 IC, KA22426D 3 7 63 1515 0 FM/AM BAND RIPPLE FILTER METER IF IN IF IN SELECT AM IF AGC TUNING METER AM FE FM IF AF POWER AMP DISCRIMINATOR FM FE FM/AM MUTE DISCRI RF IN RF IN RF IN FE OUT...
  • Page 17 http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW-1/1 3 7 6 3 1 5 1 5 0 FR-A275K WIRE,FM ANT BLK SH,SW FR-A275HRJ SH,SW 1 3 9 4 2 2 9 6 5 1 3 PLATE, POINTER w w w u 1 6 3 -17- http://www.xiaoyu163.com...
  • Page 18 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 8B-RUB-006-010 PANEL,FRONT EZ L<FR-A270 EZLC> 15 8B-RUA-101-010 HLDR,BER ANT 1 8B-RUB-005-010 PANEL,FRONT U H 16 8B-RUA-102-010 COVER, POWER CORD <FR-A270 UHC,FR-A270 EZHC> 17 8B-RUA-613-010 SPKR,57 8OHM 0.5W...

  • Page 19: Color Name Table

    http://www.xiaoyu163.com 3 7 63 1515 0 COLOR NAME TABLE Basic color symbol Color Basic color symbol Color Basic color symbol Color Black Cream Orange Green Gray Blue Transparent Blue Gold Pink Silver Titan Silver Brown Violet White Transparent White Yellow Transparent Yellow Metallic Blue Light Blue...
  • Page 20 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 H251941 Printed in Singapore http://www.xiaoyu163.com...

This manual is also suitable for:

Fr-a275