Goodmans GMS950R Service Manual
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Goodmans GMS950R Service Manual

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Summary of Contents for Goodmans GMS950R

  • Page 1 GMS950R...

  • Page 2: Table Of Contents

    SPECIFICATIONS CONTENTS AM/FM TUNER SECTION IMPORTANT SERVICE SAFETY INFORMATION---2 ANTENNA SYSTEM AM: FERRITE BAR DISASSEMBLY INSTRUCTIONS--------------------- 3 FM: LEAD WIRE ADJUSTMENT LOCATIONS----------------------------4 AM: 522 - 1620 kHz TUNING RANGE FM: 87.5 - 108 MHz ALIGNMENT PROCEDURES----------------------5 - 10 VOLTAGE CHARTS--------------------------------11 - 13 AUDIO SECTION SPEAKER IMPEDANCE : 4 OHM IC BLOCK DIAGRAMS----------------------------14 - 19...

  • Page 3: Important Service Safety Information

    IMPORTANT SERVICE SAFETY INFORMATION 1. SAFETY PRECAUTIONS ANTENNA Before returning a unit to the customer, always make a safety TERMINAL check of the entire unit, including, but not limited to the following items: EXPOSED a. Be sure that no built-in protective devices are defective METAL PART and/or have been defeated during servicing.

  • Page 4: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 3 X 10 KA 3 X 10 KA 3 X 10 PA 3 X 10 PA...

  • Page 5: Adjustment Locations

    ADJUSTMENT LOCATIONS...

  • Page 6: Alignment Procedures

    ALIGNMENT PROCEDURES FM AND AM RF ALIGNMENT CHART ( IF ) Step item Input Circuit Output Circuit Tuner Adj - Adjustment Setup Setup setting Point Unless otherwise specified set switches as follows: Function: FM Adjust generator frequency to a center of the FM band where no FM broadcast exists Connect FM IF Connect Co19 and GND FM in band...

  • Page 7: Alignment Procedures

    ALIGNMENT PROCEDURES FM RECEIVER PERFORMANCE DATA Band: Supply Voltage: AC 230 V Standard Output: Dummy Load: Modulation: 1 KHz 22.5 KHZ DEV EQ or Tone at Flat Place Bass OFF Place Measuring Items Unite Norm Limit Sample1 Sample2 90.1 Sensitivity 98.1 106.1 30db Quieting...
  • Page 8 ALIGNMENT PROCEDURES MW RECEIVER PERFORMANCE DATA Band: Supply Voltage: AC 230 V Standard Output: Dummy Load: Modulation: 1 KHz 30% EQ or Tone at Flat Place Bass OFF Place Measuring Items Unite Norm Limit Sample1 Sample2 20db Quieting dB/M Sensitivity dB/M 1404 dB/M...
  • Page 9 ALIGNMENT PROCEDURES CASSETTE PLAYBACK PERFORMANCE DATA Supply Voltage: AC 230 V Standard Output: Dummy Load: 0DB=1V EQ or Tone at Flat Place Bass OFF Place Tape Speed 4.76cm/sec.1 Measuring Items Unite Norm Limit Sample1 Sample2 Tape Speed Enor +3/-2 WOW & Flutter 0.25 0.35 Play Freq Response...
  • Page 10 ALIGNMENT PROCEDURES CASSETTER REC/PLAY PERFORMANCE DATA Supply Voltage: AC 230 V Standard Output: Dummy Load: 0DB=1V EQ or Tone at Flat Place Bass OFF Place Tape Speed 4.76cm/sec.1 Measuring Items Unite Norm Limit Sample1 Sample2 Rec Blas System KH z Erasing System Magnet Erasing Ratio ALC Compresion Time...
  • Page 11 ALIGNMENT PROCEDURES CD PLAYBACK PERFORMANCE DATA Supply Voltage: AC 230 V Standard Output: Dummy Load: 0DB=1V EQ or Tone at Flat Place Bass OFF Place Measuring Items Unite Norm Limit Sample1 Sample2 WOW & Flutter Play Freq Response (0dB) P/B S/N (YEDS) DC Opetation AC Optetaion Min Vol Hum &...

  • Page 12: Voltage Charts

    VOLTAGE CHARTS IC VOLTAGE TABLE {NO SIGNAL INPUT (EXCEPT FM STEREO BAND), VOLUME MINMUN} AC 230V 50Hz PINS 11 12 13 14 15 16 FM.ST IC102 TA2149BN PINS 21 22 23 24 FM.ST PINS 10 11 12 13 14 15 16 RADIO TAPE IC801...
  • Page 13 VOLTAGE CHARTS PINS 10 11 12 13 14 15 16 RADIO TAPE PINS 20 21 23 24 25 26 27 28 29 30 31 32 RADIO PINS 36 37 39 40 41 42 43 44 45 46 47 48 RADIO TAPE IC701 PINS...
  • Page 14 VOLTAGE CHARTS IC802 PINS 10 11 12 13 14 15 16 BU1923F PINS 10 11 12 13 14 15 16 TA2153F PINS 20 21 22 23 24 25 26 27 28 29 30 PINS MOTOR IC302 PINS KA7808 Q102 Q103 Q104 Q105 Q106 Q107 Q108 Q110 Q112 Q113 Q601 Q602 Q603 Q501 Q502 Q801 Q802 Q803 Q401 Q402 Q403 Q404 Q405 Q406 Q407 Q408 Q409 Q410 Q301 Q302 Q303 Q305 Q306 Q307 Q308 Q310 Q312 Q313 REMARK : ALL THE DATA IN THE TABLE ARE FOR.REFERENCE ONLY...

  • Page 15: Ic Block Diagrams

    IC BLOCK DIAGRAM PT2253A...

  • Page 16: Ic Block Diagrams

    IC BLOCK DIAGRAM...
  • Page 17 IC BLOCK DIAGRAM INPUT OUTPUT SERIES PASS ELEMENT CURRENT GENERATOR PROTECTION KA7808 KA7805 STARTING REFERENCE ERROR CIRCUIT VOLTAGE AMPLIFIER THERMAL PROTECTION...
  • Page 18 IC BLOCK DIAGRAM TA2153FN 36 pF 10 k 50 k 15 k SBAD 15 k 3 pF 30 k 10 k 20 k 60 k 10 k 10 pF 2VRO 20 k 20 k 20 k 12 k 3 STATE RF RP 12 k DE T.
  • Page 19 IC BLOCK DIAGRAM...
  • Page 20 IC BLOCK DIAGRAM SEG11 XOUT SEG12 SEG13 /RESET SEG14 XTOUT SEG15 XTIN SEG16 TEST SEG17 N.C. SEG18 REMOTE SEG19 MUTE SEG20 N.C. SEG21 CD-SYNC SEG22 IC701 IC701 T-MOTOR SEG23 VOL UP SEG24 87E26-1J15 87E26-1J15 N.C. SEG25 VOL DN SEG26 N.C. SEG27 SEG28 SEG29...

  • Page 21: Block Diagram

    BLOCK DIAGRAM...

  • Page 22: Wiring Diagram

    WIRING DIAGRAM...

  • Page 23: Schematic Diagrams

    SCHEMATIC DIAGRAMS...
  • Page 24 SCHEMATIC DIAGRAMS...
  • Page 25 SCHEMATIC DIAGRAMS...
  • Page 26 SCHEMATIC DIAGRAMS...
  • Page 27 SCHEMATIC DIAGRAMS...
  • Page 28 SCHEMATIC DIAGRAMS...
  • Page 29 SCHEMATIC DIAGRAMS...

  • Page 30: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS...
  • Page 31 PRINTED CIRCUIT BOARDS...
  • Page 32 PRINTED CIRCUIT BOARDS...
  • Page 33 PRINTED CIRCUIT BOARDS...

  • Page 34: Exploded View/Parts List (Cabinet)

    EXPLODED VIEW/PARTS LIST (CABINET)
  • Page 35 EXPLODED VIEW/PARTS LIST (CABINET)
  • Page 36 EXPLODED VIEW/PARTS LIST (CABINET) ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION 470-05660J-6500 JACK COVER 303-000072-0001 DUST COVER 330-056600-6500 FRONT PANEL 202-056602-01 CASS DOOR SPRING 367-056600-8KN0 CASS DOOR LENS 188-000400-00 LEAF SWITCH 400-056601-2409 VOLUME KNOB 374-056600-5Y20 CD BRACKET 463-05660V-1010 VOLUME ADAPTOR 425-056605-1R20 CASS KNOB - PAUSE 412-056600-2409...
  • Page 37 Component list with price PART NO. DESCRIPTION UNIT QTY. PER 001-056664-22 NE-566RDS AUX JACK BOARD W/EMC 177-060000-25 RCA JACK PCB TYPE (RED) RS-105-02 177-060000-26 RCA JACK PCB TYPE (WHITE) RS-105-04 114-472012-05 RESISTOR (1/16W) 4.7K OHM ?% HIGH GRADE 114-473012-05 RESISTOR (1/16W) 47K OHM ?% HIGH GRADE 120-225502-20 E.
  • Page 38 Component list with price PART NO. DESCRIPTION UNIT QTY. PER HIGH GRADE ?5 x 11MM 120-224502-20 E. CAP 50V 0.22UF +/- 20% HIGH GRADE ?5 x 11MM 120-225502-20 E. CAP 50V 2.2UF +/- 20% HIGH GRADE ?5 x 11MM 120-227100-82 E.CAP 220 UF 10V +80% -20% ?6 x 11MM 120-476302-20...
  • Page 39 Component list with price PART NO. DESCRIPTION UNIT QTY. PER 114-272012-05 RESISTOR (1/16W) 2.7K OHM ?% HIGH GRADE 114-273012-05 RESISTOR (1/16W) 27K OHM ?% HIGH GRADE 114-392012-05 RESISTOR (1/16W) 3.9K OHM ?% HIGH GRADE 114-471012-05 RESISTOR (1/16W) 470 OHM ?% HIGH GRADE 114-472012-05 RESISTOR (1/16W) 4.7K OHM ?%...
  • Page 40 Component list with price PART NO. DESCRIPTION UNIT QTY. PER W/HOUSING JS-1124-5 2.0 PITCH 194-242025-A3 28#2CUL2547 SHIELD 250MM W/HOUSING PH2.0-3P 202-032300-02 FUSE HOLDER (0.4mm) "NEW" SAME 202-032300-00 202-082201-01 HEAT-SINK FOR 8229K IC (822) 2.0MM 204-300000-08 MACHINE SCREW M3 X 8 PM 261-101010-09 SPONGE 10 X 10 X 10 107-101070-28...
  • Page 41 Component list with price PART NO. DESCRIPTION UNIT QTY. PER 114-821301-05 RESISTOR 820 OHM 1/2W, ?% 114-823012-05 RESISTOR (1/16W) 82K OHM ?% HIGH GRADE 120-105502-20 E. CAP 50V 1UF +/- 20% HIGH GRADE ?5 x 11MM 120-106402-20 E. CAP (25V) 10UF +/- 20% HIGH GRADE ?5 x 11MM 120-107102-20 E.CAP (10V) 100UF ?0%...
  • Page 42 Component list with price PART NO. DESCRIPTION UNIT QTY. PER 130-410082-00 1/2W ZENER DIODE 8.2V 130-514148-05 DIODE IN4148 BRAND: "COS" DAIWA 131-08050C-38 TRANSISTOR S8050C HI LITE CENTRE B 131-09014C-38 TRANSISTOR S9014C HI LITE CENTRE B 131-09015C-38 TRANSISTOR S9015C HI LITE CENTRE B 131-09018G-38 TRANSISTOR S9018G HI LITE...
  • Page 43 Component list with price PART NO. DESCRIPTION UNIT QTY. PER 195-306031-20 F.F.CONNECTOR 180?20 P 1MM PITCH P/N FABSD2052 195-326031-16 F.F.CONNECTOR 180?16 P 1MM PITCH P/N 0B-DIP-16P 195-326031-22 F.F.CONNECTOR 180 22 P UP/LOW 1MM PITCH P/N FPC1.0B-DIP-22P 202-000055-11 HEAT-SINK FOR MM1469XH (295) ••...
  • Page 44 Component list with price PART NO. DESCRIPTION UNIT QTY. PER 120-105502-20 E. CAP 50V 1UF +/- 20% HIGH GRADE ?5 x 11MM 120-106402-20 E. CAP (25V) 10UF +/- 20% HIGH GRADE ?5 x 11MM 120-107102-20 E.CAP (10V) 100UF ?0% HIGH GRADE ?5 x 11MM 120-108102-20 E.CAP (10V) 1000UF ?0% HIGH GRADE ?8 x 14MM...
  • Page 45 Component list with price PART NO. DESCRIPTION UNIT QTY. PER PH-5A 180?5 POLES 2.0MM PITCH 195-200011-06 WAFER JS-1125-6S / JM 24181-6 PH-6A 180?6 POLES 2.0MM PITCH 195-200011-08 WAFER JS-1125-8S / JM 24181-8 PH-8A 180?8 POLES 2.0MM PITCH 195-200011-10 WAFER JS-1125-10S / JM24181-10 PH-10A 180?10 POLES 2.0MM PIT 220-601008-00 COTTON OIL SLEEVE ? X 8MM...
  • Page 46 218-080012-03 DECK MECH THL21VB-3058P AUTO S AC BIAS M.ERASE 6PA W/CLUTCH 219-213CJM-01 CD MECHANISM TOP VERTICAL SONY KSM-213CJM 010-05669W-50G0 R-566RDS GOODMANS 15 KEY 2C00 SILVER, 999-0566G0-C100 020-056639-21 NE-566RDS 15 KEY REMOTE CONT. BD<TC9243/PT2243) 108-004550-07 CERAMIC RESONATOR CSBLA455KECE -B0 "old CSB455EB"...
  • Page 47 Component list with price PART NO. DESCRIPTION UNIT QTY. PER HANDSET 440-0575QT-2501 REMO H FRONT CAB MOD5. REV. SPR. ABS 2C00, 999-0566G0-C100 441-0575P0-2500 REMOTE H REAR CAB MOD5.SPR ABS 2C00 442-0575A0-2500 REMOTE H BATTERY DOOR MOD2.SPR ABS 2C00 443-057500-8930 REMOTE H POWER BUTTON INJ SAN 3803 444-057520-8930 REMOTE H FUNCTION BUTTON New.M...
  • Page 48 10.8 X 10.8 X 2mm W/A BLACK 303-000071-0001 DUST COVER FOR SONY INJ ABS BLACK Same 199-000013-01 209-05669W-01 BACK PLATE-GOODMANS (ROADSTAR) MDL:GMS950R MW/FM ENG CE 210-000001-01 QC PASS LABEL WHITE B/G / BLACK LETTER 210-000003-03 SERIAL NO LABEL WITH (P.P)
  • Page 49 YEL BG/BLK LETT. LAM. Triangle 210-050003-05 CD CAUTION LABEL (500) YELLOW B/G/BLK LET 210-05669W-07 SHIPMARK LABEL (ROADSTAR) MDL:GMS950R stick to G/B 210-05669W-12 SPEAKER LBL-GOODMANS(ROADSTAR) MDL:GMS 950R 215-031123-20 POLYBAG PE04-LD W/RECYCLE MARK P.HOLE, WARN, 3" X 11" X 0.023 215-060823-20 POLYBAG PE-04,PE-LD W/WARNING P.HOLE,RECY.MARK 6"x8"x0.023...
  • Page 50 Component list with price PART NO. DESCRIPTION UNIT QTY. PER 425-056600-1R20 CASS KNOB - REC. INJ. ABS 1830 LIGHT GREY 425-056601-1R20 CASS KNOB - PLAY INJ ABS 1830 LIGHT GREY 425-056602-1R20 CASS KNOB - F.REW INJ ABS 1830 LIGHT GREY 425-056603-1R20 CASS KNOB - F.FWD INJ ABS 1830 LIGHT GREY...

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