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XR-C5080R/C5090R SERVICE MANUAL AEP Model UK Model Photo: XR-C5090R Model Name Using Similar Mechanism XR-5800R Tape Transport Mechanism Type MG-25G-136 SPECIFICATIONS FM/MW/LW CASSETTE CAR STEREO MICROFILM...
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TABLE OF CONTENTS Flexible Circuit Board Repairing • Keep the temperature of the soldering iron around 270 ˚C dur- ing repairing. GENERAL • Do not touch the soldering iron on the same conductor of the Location of Controls ............3 circuit board (within 3 times).
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SECTION 1 This section is extracted from instruction manual. GENERAL – 3 –...
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SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. FRONT PANEL ASS’Y 1 Push the button (release). 2 Remove the front panel ass’y to the direction of the arrow A . COVER ASS’Y 3 cover ass’y –...
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SUB PANEL, MECHANISM DECK (MG-25G-136) 5 screw (PTT2.6 × 6) 3 connector (CN352) 6 mechanism deck (MG-25G-136) 4 flexible flat cable (CN351) 2 sub panel 1 three screws (PTT2.6 × 8) 1 three screws (PTT2.6 × 8) MAIN BOARD, HEAT SINK 5 two screws 6 three screws (PTT2.6 ×...
SECTION 3 ASSEMBLY OF MECHANISM DECK Note: Follow the assembly procedure in the numerical order given. 7 Holder the hanger by bending the claw. 5 Fit projection on C part. HOUSING 1 Install the catch to the hanger. 2 Install the hanger onto two claws of the housing.
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LEVER (LDG-A) / (LDG-B) shaft A shaft A shaft B shaft B shaft C 1 Fit the lever (LDG-A) on shafts A – C and install it. 3 type-E stop ring 2.0 2 Fit the lever (LDG-B) on shafts A and B and install it.
SECTION 5 SECTION 4 ELECTRICAL ADJUSTMENTS MECHANICAL ADJUSTMENTS 1. Clean the following parts with a denatured-alcohol-moistened TEST MODE swab: This set have the test mode function. In the test mode, FM Auto playback head pinch roller Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments rubber belt capstan can be performed easier than it in ordinary procedure.
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FM Noise Focus Adjustment TUNER SECTION 0 dB=1µV Setting: [SOURCE] button: FM Cautions during repair When the tuner unit is defective, replace it by a new one be- FM RF signal level meter cause its internal block is difficult to repair. antenna jack (J1) generator 0.01 µ...
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FM Signal Meter Adjustment AM (MW) Auto Scan/Stop Level Adjustment Setting: Make this adjustment after “FM Auto Scan/Stop Level Adjust- [SOURCE] ment”. button: FM Setting: FM RF signal [SOURCE] button: MW generator antenna jack (J1) 30 Ω 15 pF 0.01 µ F 65 pF Carrier frequency : 98.00 MHz : 35 dB (56.2 µ...
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Adjustment Location: – SET UPPER VIEW – Tape Speed Adjustment RV1 AM (MW) Auto Scan/Stop Level Adjustment RV2 FM Auto Scan/Stop Level Adjustment RV3 FM Noise Focus Adjustment RV4 FM Stereo Separation Adjustment RV1 FM Signal Meter Adjustment – 17 –...
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IC601 BA3918-V2 IC701 BA8270F-E2 BUS ON BUS ON SWITCH REGULATOR RESET SWITCH BUS ON CLK IN BATTERY BATT BU IN SWITCH OVER VOLTAGE PROTECT VREF DATA DATA IN – DATA OUT 2 3 4 • Waveforms – MAIN Section – 2 IC3 9 XO 1 IC1 1 XO 42 mVp-p...
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6-5. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC501 MN1886426SA (SYSTEM CONTROLLER) Pin No. Pin Name Function TUNMUT FM audio signal muting control output terminal “H”: muting on AMPON Standby control signal output to the power amplifier (IC801) “L”: standby Power supply on/off control signal output terminal at the illumination and liquid crystal display driver (IC901) “H”: power on ILLON...
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Ground terminal (for A/D converter) — Ground terminal BUSON Bus on/off control signal output to the bus interface (IC701) (for SONY bus) “L”: bus on SYSRST Reset signal output to the bus interface (IC701) (for SONY bus) “L”: reset SEKOUT...
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Pin No. Pin Name Function Input of FM stereo detection signal from FM/AM tuner unit (TU1), and output of forced monaural control signal to FM/AM tuner unit (TU1) (Commonly used for stereo display input ST IN and forced monaural output) FM stereo detection at input of “L”, forced monaural at output of “L”...