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XR-5880R/5890R SERVICE MANUAL AEP Model UK Model Photo: XR-5890R Model Name Using Similar Mechanism XR-C6100R Tape Transport Mechanism Type MG-25G-136 SPECIFICATIONS FM/MW/LW CASSETTE CAR STEREO MICROFILM...
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 –...
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 (CN302) 6 Mechanism deck (MG-25G-136) 4 Flexible flat cable (CN301) 2 Sub panel 1 Three screws (PTT2.6 × 8) 1 Three screws (PTT2.6 × 8) 5 Two screws MAIN BOARD, HEAT SINK (PTT 2.6 ×...
SECTION 3 ASSEMBLY OF MECHANISM DECK Note: Follow the assembly procedure in the numerical order given. HOUSING 7 Holder the hanger by bending the claw. 5 Fit projection on C part. 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 B shaft C shaft A shaft B 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.
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GUIDE (C) 2 guide (C) 1 three claws MOUNTING POSITION OF CAPSTAN/REEL MOTOR (M901) 30 ° 3 Capstan/reel motor(M901) 2 Two precision screws (P 2 × 2) 1 Belt – 12 –...
SECTION 4 SECTION 5 MECHANICAL ADJUSTMENTS ELECTRICAL 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.
FM Stereo Separation Adjustment TUNER SECTION 0 dB=1 µV 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) 0.01 µ F 30 Ω 15 pF 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 RV4 FM Stereo Separation Adjustment RV1 FM Signal Meter Adjustment – 16 –...
XR-5880R/5890R 6-2. SCHEMATIC DIAGRAM — MAIN (1/2) SECTION — • Refer to page 29 for IC Block Diagrams. • Waveforms 5.4Vp-p 32.8KHz IC501 &£ 5.6Vp-p 3.68MHz IC501 (£ 5.4Vp-p 4.332MHz IC51 4 Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
XR-5880R/5890R 6-3. SCHEMATIC DIAGRAM — MAIN (2/2) SECTION — • Refer to page 29 for IC Block Diagrams. (Page 21, 22) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
XR-5880R/5890R 6-5. SCHEMATIC DIAGRAM — PANEL SECTION — (Page 23) Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF • Voltage and waveforms are dc with respect to ground • Circled numbers refer to waveforms.
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• IC Block Diagrams – MAIN Board – IC1 TB2118F (EL) IC90 BA4558F IC51 SAA6588T-118 OUT1 24 23 22 21 16 15 14 13 OUT2 –IN1 POWER SUPPLY PAUSE & RESET DETECTOR MULTI +IN1 –IN2 PATH 57kHz DETECTOR 8th ORDER BAND-PASS FILTER –...
6-6. IC PIN FUNCTION DESCRIPTION • IC501 MASTER U-COM (MB90574PFV-G-177-BND) Pin No. Pin Name Function SEKOUT Seek out AFSEEK AF seek – – Not used ST IND Stereo display input and control MONO output TUMUTE Tuner mute output FM ON FM_ON output TU ON TUNER_ON output...
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Pin No. Pin Name Function – Power supply terminal +5V RAMBU RAM reset detection input (Non RDS) PW SEL Power select initial setting input – – Not used TESTIN Test mode detection input DOORIND Not used – – Not used COLOR SW Color switching, L:2 color, H:Single color COLER SEL...
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Pin No. Pin Name Function TAPEON TAPE power supply control output N ROUT FOR/REV control output AMSON AMS control output MTLON Metal control input/output DOLON DOLBY control input/output TAPMUT Audio signal selection control output terminal AMPON Power IC standby control output –...
SECTION 8 ELECTRICAL PARTS LIST Note: • SEMICONDUCTORS • Due to standardization, replacements in the parts list The components identified by In each case, u: µ , for example: may be different from the parts specified in the mark ! or dotted line with mark diagrams or the components used on the set.
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