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Sanyo FXD-770GD Service Manual

Full panel detachable high power fm/am stereo receiver compact disc player
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SERVICE MANUAL
REL
VOL
LO/DX
FM/AM RECEIVER
LOUD
PRESET TRACK
CD
TUN
FMIII
TRK
AMII
LOUD ST LOCBASS MANU TRE
AUD
Specifications
FM TUNER
Tuning Range .............................................................................. 87.5 - 107.9 MHz. (200 KHz. step)
Sensitivity .................................................................................... 1.5 µV
Separation ................................................................................... 30 dB
Signal-to-Noise Ratio .................................................................. 65 dB (stereo), 70 dB (mono)
AM TUNER
Tuning Range .............................................................................. 530 - 1,710 KHz. (10 KHz. step)
Sensitivity .................................................................................... 20 µV
Signal-to-Noise Ratio .................................................................. 45 dB
CD PLAYER
Frequency Response .................................................................. 20 - 20,000 Hz.
Signal-to-Noise Ratio .................................................................. 90 dB
Channel Separation .................................................................... 60 dB
Dynamic Range .......................................................................... 90 dB
Harmonic Distortion ..................................................................... 0.2 %
AUDIO AMPLIFIER & GENERAL
Maximum Output Power ............................................................. 40 W x 4 channels
Output Wiring .............................................................................. Floating-Ground type designed for
Output Impedance ...................................................................... 4 - 8 ohms
Power Supply .............................................................................. 12 volts DC, negative ground
Specifications are subject to change without notice.
Full Panel Detachable
High Power
FM/AM Stereo Receiver
Compact Disc Player
FXD-770GD 40W X 4
BAND
ATP
L
R
CD
FRONT
SCAN
R
F
SHF
RPT
SHF
RPT
DISP
PWR
MUTE
FXD-770GD
FXD-770GD (A.SS)
114782844
FXD-775RDS (XE)
114782841
REL
VOL
CD
CD RECEIVER FXD-775RDS 40W X 4
TUN
TRK
AUD
87.5 - 108.0 MHz. (50 KHz. step)
531 - 1,602 KHz. (9 KHz. step)
4-speaker use
RCA low-level outputs: 2 channels
REFERENCE No. SM-7900006
FILE NO.
TA
AF
PTY
ATP
SHF
RPT
BAND
PWR
MUTE
FXD-775RDS

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  Summary of Contents for Sanyo FXD-770GD

  • Page 1 FXD-770GD (A.SS) 114782844 High Power FXD-775RDS (XE) FM/AM Stereo Receiver 114782841 Compact Disc Player LO/DX FM/AM RECEIVER FXD-770GD 40W X 4 BAND CD RECEIVER FXD-775RDS 40W X 4 LOUD PRESET TRACK FMIII FRONT SCAN AMII LOUD ST LOCBASS MANU TRE...
  • Page 2: Table Of Contents

    CONTENTS SERVICE NOTES and PRECAUTIONS ................. 1-3 ELECTRICAL ADJUSTMENTS ..................4-9 BLOCK DIAGRAM ......................10 IC/TRANSISTOR LEAD IDENTIFICATION ..............11 CD MECHANISM EXPLODED VIEW ................12 CABINET & CHASSIS EXPLODED VIEW ............... 13 PARTS LIST - CABINET, CHASSIS AND ACCESSORIES ..........14 PARTS LIST - CD MECHANISM .................
  • Page 3: Service Notes And Precautions

    SERVICE NOTES AND PRECAUTIONS SERVICE NOTES INSTALLATION PROCEDURE 1. Make sure that the power lead is connected properly to 1. To prevent a short circuit, remove the key from the igni- power source, otherwise damage to radio may result. If a tion and disconnect the battery.
  • Page 4 SERVICE NOTES AND PRECAUTIONS 3. Each and every pickup is already individually adjusted to LASER BEAM SAFETY PRECAUTIONS a high degree of precision, and for that reason the adjust- NOTES FOR TRANSPORT AND STORAGE ment point and installation screws should be absolutely 1.
  • Page 5 SERVICE NOTE AND PRECAUTIONS STATIC ELECTRICITY The CD pickup might suffer destruction by static electricity during spare-parts maintenance or replacement, although it is stable when connected to the circuit in the CD unit. The destruction might be caused because the laser diode terminal will be electri- cally open.
  • Page 6: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS DUMMY BOX SCHEMATIC PLUG TO FIT ANTENNA PLUG TO FIT ANTENNA CO-AX CABLE CO-AX CABLE RECEPTACLE OF UNIT RECEPTACLE OF UNIT 33Ω 15PF 10Ω 45Ω AM S.G. FM S.G. (50Ω) (50Ω) 60Ω 60PF METAL SHIELD CAN METAL SHIELD CAN AM DUMMY ANTENNA FM DUMMY ANTENNA Fig.
  • Page 7 ELECTRICAL ADJUSTMENTS GENERATOR RADIO DIAL OUTPUT ADJUST- STEP REMARKS FREQUENCY SETTING INDICATOR MENT Non-Mod. 530kHz DC VTVM to test — Check the voltage more than 531kHz point 2.5V Non-Mod. 1710kHz DC VTVM to test — Check the voltage less than 7.5V. 1602kHz point 1000kHz,...
  • Page 8 ELECTRICAL ADJUSTMENTS GENERATOR RADIO DIAL OUTPUT ADJUST- STEP REMARKS FREQUENCY SETTING INDICATOR MENT Non-Mod. 87.5MHz DC VTVM to test — Check the voltage more than 1.1V point Non-Mod. 107.9MHz DC VTVM to test L103 Adjust for 6.9 0.1V 108MHz point FM OSC 98.1MHz 98.1MHz...
  • Page 9 Press the e PWR button to turn the power off. Next, use the following procedure with the front panel switches to set the mode to the test mode shown in Step 4 for AM and Step 7 for FM. BAND LO/DX FM/AM RECEIVER FXD-770GD 40W X 4 LOUD PRESET TRACK FMIII FRONT...
  • Page 10 ELECTRICAL ADJUSTMENTS FOR FXD-775RDS CD RECEIVER FXD-775RDS 40W X 4 BAND MUTE Fig. 6 TEST MODE CHART (A) Enter the Test Mode (B) Enter the FM Mode (D) Receiving 98.1 MHz (F) Enter the AM Mode (C) FM DX Mode (E) FM Local Mode (G) AM DX Mode Fig.
  • Page 11 (H) Receiving 999 kHz (K) The Moment TP ON (N) Change the Display while AF ON (J) AM Local Mode (K) Change the Display while TP ON (O) The Moment 107.1 MHz Receiving (J) S. Meter Adj. Mode (M) The Moment AF ON (P) Change the Display while 107.1 MHz Receiving Fig.
  • Page 12: Block Diagram

    BLOCK DIAGRAM — 10 —...
  • Page 13: Ic/Transistor Lead Identification

    IC/TRANSISTOR LEAD IDENTIFICATION TOP VIEW or SIDE VIEW IC452 : KIA4558P IC802 : LA6458ML.CT IC801 : CXA1821M-CT IC803 : BA5984FP-CT IC251 : BU2624AF-CT (RDS Model) IC401 : LC75372ED IC901 : LC75823W IC101 : LA178IM IC251 : LC72146M-CT IC781 : LC72723M-CT IC501 : HA13153A IC301 : CXD2587Q IC701 : UPD780054GC...
  • Page 14: Cd Mechanism Exploded View

    CD MECHANISM EXPLODED VIEW (MECHANISM #5BB002) NOTE: Parts from the deck mechanism exploded view and parts list are only for technical reference. These parts may or may not be individually available. — 12 —...
  • Page 15: Cabinet & Chassis Exploded View

    CABINET & CHASSIS EXPLODED VIEW ET201 CABLE ASS'Y (E-1) (For FXD-770GD/A.SS) TK26917170 (For FXD-775RDS/XE) TK26917280 BRACKET (MOUNT) TK21176533 BRACKET (REL) SUPPORT BRACKET TK21176780 TK2102013 SCREW KIT(6PCS) TK29X12210 — 13 —...
  • Page 16: Parts List - Cabinet, Chassis And Accessories

    INSULATOR AKC393G9C FPPART FXD770GD/SSSOP (FXD-770GD/A.SS) AKC423G9C FPPART FXD775RDS/XESOP (FXD-775RDS/XE) TK22331240 FPASSY(A) (FXD-770GD/A.SS) TK22331690 FPASSY(A) (FXD-775RDS/XE) TK22240150 FACE PLATE(B) (FXD-770GD/A.SS, FXD-775RDS/XE) TK29A5208C TPB2-2X8SSC (FXD-770GD/A.SS, FXD-775RDS/XE) TK35U27B0 DISPLAY CIRCUIT BOARD (FXD-770GD/A.SS) TK35V03B0 DISPLAY CIRCUIT BOARD (FXD-775RDS/XE) TK35U97A0 MAIN CIRCUIT BOARD (FXD-770GD/A.SS) TK35V02A0...
  • Page 17: Parts List-Cd Mechanism

    PARTS LIST-CD MECHANISM Ref. No. Part No. Description TKX-1007-1011 CHASSIS ASSY (TK1) TKX-1007-1005 PICK BASE ASSY TK1-1005-1003 CHUCK ARM TK1-1005-1004 TOP COVER TK1-1005-1006 L.M BRACKET TK1-1005-1007 CLAMPER PLATE TK1-1005-1008 R ARM TK1-1005-1009 RELEASE LEVER TK1-1005-1018 SET START ARM TK1-1007-1003 SPG GUIDE TK1-1007-1004 PICK GUIDE TK1-1007-1008...
  • Page 18 PARTS LIST-CD MECHANISM Ref. No. Part No. Description TK1-1005-4010 UP LEVER SP TK1-1007-4001 FEED SP TK1-1007-4002 CHUCK ARM SP (L) TK1-1007-4003 P.B. LOCK SP TK1-1007-4004 CHUCK ARM SP (R) TK1-1005-5003 XP SCREW TK1-1005-5004 ARM SHEET TK1-1005-5005 CHUCK SHEET TK1-1007-5001 DISC SHEET TK1-1007-5005 LOADING ROLLER TK1-1007-5003...
  • Page 19: Parts List-Main

    PARTS LIST MAIN CIRCUIT BOARD FOR FXD-770GD Ref. No. Part No. Description AJ201 TK196510400 ANT JACK ASSY C201, C317 TK157A1030J CAPACITOR, CHIP, 0.01UF 50V C204, C327 TK157A4730J CAPACITOR, CHIP, 0.047UF 16V C205 TK15715R00J CAPACITOR, CHIP, 5PF 50V C206, C207 TK157A1830J CAPACITOR, CHIP, 0.018UF 25V...
  • Page 20 MAIN CIRCUIT BOARD FOR FXD-770GD Ref. No. Part No. Description C681, C702 TK157C1040J CAPACITOR, CHIP, 0.1U C701 TK1553106K5 CAPACITOR, ELECTROLYTIC, 10UF 16V C705, C846 TK157C1040J CAPACITOR, CHIP, 0.1U C709 TK15712200J CAPACITOR, CHIP, 22PF 50V C760, C891 TK157A1030J CAPACITOR, CHIP, 0.01UF 50V...
  • Page 21 MAIN CIRCUIT BOARD FOR FXD-770GD Ref. No. Part No. Description J744 TK165300006 RESISTOR, CHIP, 0OHM 1/16W L251, L701 TK172024834 COIL, EL0305RA-220J-FT L301, L802 TK172024934 COIL, EL0305RA-330J-FT L551 TK174301800 TRANSFORMER, TT-OL-5047-R2 L801 TK172024634 COIL, EL0305RA-100J-FT P503 TK26563210 CONNECTOR P701 TK1981312AC POST-TMD-L12X-B1...
  • Page 22 MAIN CIRCUIT BOARD FOR FXD-770GD Ref. No. Part No. Description R405, R406 TK165324206 RESISTOR, CHIP, 2.40KOHM 1/16W R409, R410 TK165368306 RESISTOR, CHIP, 68KOHM 1/16W R411, R412 TK165318206 RESISTOR, CHIP, 1.8KOHM 1/16W R413, R414 TK165322306 RESISTOR, CHIP, 22KOHM 1/16W R443, R444 TK165391206 RESISTOR, CHIP, 9.1KOHM 1/16W...
  • Page 23 MAIN CIRCUIT BOARD FOR FXD-770GD Ref. No. Part No. Description R791 TK165310206 RESISTOR, CHIP, 1KOHM 1/16W R792 TK165310406 RESISTOR, CHIP, 100KOHM 1/16W R801 TK165322006 RESISTOR, CHIP, 22OHM 1/16W R802 TK165391006 RESISTOR, CHIP, 91OHM 1/16W R803, R804 TK165356406 RESISTOR, CHIP, 560KOHM 1/16W...
  • Page 24 MAIN CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description AJ201 TK196510400 ANT JACK ASSY C201, C262 TK157A1030J CAPACITOR, CHIP, 0.01UF 50V C204, C327 TK157A4730J CAPACITOR, CHIP, 0.047UF 16V C205 TK15715R00J CAPACITOR, CHIP, 5PF 50V C206, C207 TK157A1830J CAPACITOR, CHIP, 0.018UF 25V C208, C210 TK157A1020J CAPACITOR, CHIP, 1000PF 50V...
  • Page 25 MAIN CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description C651, C847 TK157A2230J CAPACITOR, CHIP, 0.022UF 25V C681 TK157C2240J CAPACITOR, CHIP, 0.22UF 25V C701 TK1553106K5 CAPACITOR, ELECTROLYTIC, 10UF 16V C702, C784 TK157C1040J CAPACITOR, CHIP, 0.1U C703 TK1552227K6 CAPACITOR, ELECTROLYTIC, 220UF 10V C709, C785 TK15712200J CAPACITOR, CHIP, 22PF 50V...
  • Page 26 MAIN CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description IC452 TK111823303 IC, LA6458ML-CT IC501 TK111845600 IC, HA13158A IC651 TK111893A00 IC, KIA7806API IC701 TK119537100 IC, UPD780058GC-285-8 IC702 TK111798F07 IC, BMR-0101E-RT IC781 TK112332303 IC, LC72723M-CT IC801 TK111816403 IC, CXA1821M-CT IC803 TK111887303 IC, LA6556-CT J451, J453 TK165300006...
  • Page 27 MAIN CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description R261, R262 TK165347306 RESISTOR, CHIP, 47KOHM 1/16W R263, R302 TK165310306 RESISTOR, CHIP, 10KOHM 1/16W R281, R672 TK165347306 RESISTOR, CHIP, 47KOHM 1/16W R303, R310 TK165322306 RESISTOR, CHIP, 22KOHM 1/16W R304, R313 TK165333306 RESISTOR, CHIP, 33KOHM 1/16W R305, R810...
  • Page 28 MAIN CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description R683 TK16524R706 RESISTOR, CHIP, 4.7OHM 1/10W R708, R714 TK165310206 RESISTOR, CHIP, 1KOHM 1/16W R709, R712 TK165310406 RESISTOR, CHIP, 100KOHM 1/16W R713, R737 TK165310406 RESISTOR, CHIP, 100KOHM 1/16W R715, R718 TK165310206 RESISTOR, CHIP, 1KOHM 1/16W R716 TK165322206...
  • Page 29: Parts List-Disp

    DISPLAYCIRCUIT BOARD FOR FXD-770GD, FXD-775RDS : FXD-770GD : FXD-775RDS Ref. No. Part No. Description C901, C902 TK157A4730E CAPACITOR, CHIP, 0.047UF 25V C903 TK157B1040E CAPACITOR, CHIP, 0.1UF 25V C904 TK157A1020E CAPACITOR, CHIP, 1000PF 50V C905 TK157A1030E CAPACITOR, CHIP, 0.01UF 25V D901 TK134025033 DIODE, ZENER, 02CZ4.7T-Y...
  • Page 30 DISPLAYCIRCUIT BOARD FOR FXD-770GD, FXD-775RDS : FXD-770GD : FXD-775RDS Ref. No. Part No. Description SW915, SW916 TK23A11710 SWITCH SKQNAC-RT SW917, SW918 TK23A11710 SWITCH SKQNAC-RT SW919 TK23A11710 SWITCH SKQNAC-RT TK182523410 PCB DISP TK21177060 BKT (LCD) E-1.5 TK22420550 HOLDER (LED) E-1.5 TK22420560 HOLDER ASSY(LCD) E-1.5...
  • Page 31: Parts List-Rf33

    RF33 CIRCUIT BOARD FOR FXD-770GD Ref. No. Part No. Description C100, C103 TK15712700J CAPACITOR, CHIP, 27PF 50V C101, C171 TK15711200J CAPACITOR, CHIP, 12PF 50V C102, C104 TK157A1030J CAPACITOR, CHIP, 0.01UF 50V C105 TK15775R00J CAPACITOR, CHIP, 5P C106 TK15711500J CAPACITOR, CHIP, 15PF 50V...
  • Page 32 RF33 CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description C100, C103 TK15712700J CAPACITOR, CHIP, 27PF 50V C101, C171 TK15711200J CAPACITOR, CHIP, 12PF 50V C102, C104 TK157A1030J CAPACITOR, CHIP, 0.01UF 50V C105 TK15775R00J CAPACITOR, CHIP, 5P C106 TK15711500J CAPACITOR, CHIP, 15PF 50V C107, C122 TK157A2230J CAPACITOR, CHIP, 0.022UF 25V...
  • Page 33 RF33 CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description C190 TK15711000J CAPACITOR, CHIP, 10PF 50V D101 TK13500390B DIODE, 1SV234T-TB D102, D103 TK135006803 DIODE, SVC220T D104, D108 TK135006803 DIODE, SVC220T D105, D107 TK13200710B DIODE, DA204KT146 D109, D110 TK131002903 DIODE, 1SS355T F101 TK175206130 CERAMIC FILTER, FFE-1070-MJ10FAL...
  • Page 34 RF33 CIRCUIT BOARD FOR FXD-775RDS Ref. No. Part No. Description R125 TK165333106 RESISTOR, CHIP, 330OHM 1/16W R127 TK165322406 RESISTOR, CHIP, 220KOHM 1/16W R128 TK165318306 RESISTOR, CHIP, 18KOHM 1/16W R129 TK169162210 RESISTOR, SEMI-FIXED, KVSF637A-473B R131 TK165315306 RESISTOR, CHIP, 15KOHM 1/16W R132 TK165382106 RESISTOR, CHIP, 820OHM 1/16W R134...
  • Page 35: Schematic Diagram

    SCHEMATIC DIAGRAM - MAIN FOR FXD-770GD/ASS...
  • Page 36 SCHEMATIC DIAGRAM - MAIN FOR FXD-775RDS...
  • Page 37 SCHEMATIC DIAGRAM - DISPLAY FOR FXD-770GD SCHEMATIC DIAGRAM - RF33 FOR BOTH MODELS NOTE : LED means as follows. Parts No. D911 ~ 913 : EJ, TA/AF, PTY D914 ~ 916 : CD PWR, VEL +, VOL - D917 ~ 922...
  • Page 38 CIRCUIT BOARD PARTS LOCATION - MAIN CIRCUIT BOARD PARTS LOCATION - MAIN CIRCUIT BOARD PARTS LOCATION - DISPLAY FOR FXD-770GD/A.SS FOR FXD-775RDS/XE FOR BOTH MODELS CIRCUIT BOARD PARTS LOCATION - RF33 FOR BOTH MODELS Generator & Radio Dial Setting 98.1MHz (JPN 83MHz) 1kHz, 75kHz dev —...
  • Page 39 FXR-725GD FXR-730GD FXD-770GD FXD-775RDS No. 289A2880 Printed in Japan Issue date 05-01...
  • Page 40 The reason of change. A : Misprint B : Quality Reliabilities C : Standardization D : Design Prod. Code : FXD-770GD (A.SS) 114782844 FXD-775RDS (XE) 114782841 The EXPLODED VIEW for CD mechanism does not match the PARTS LIST for CD MECHANISM.
  • Page 41 CD Mechanism Exploded View (MECHANISM #5BB002) (2/2)
  • Page 42 The reason of change. A : Misprint B : Quality Reliabilities C : Standardization D : Design Prod. Code : FXD-770GD (A.SS) 114782844 FXD-775RDS (XE) 114782841 In the parts list for CABINET & CHASSIS, the part numbers are mistaked. Page & Section Page &...

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