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XR-C5100 SERVICE MANUAL US Model Canadian Model E Model Model Name Using Similar Mechanism XR-4800 Tape Transport Mechanism Type MG-25F-136 SPECIFICATIONS AUDIO POWER SPECIFICATIONS (US model) AM (MW) POWER OUTPUT AND TOTAL HARMONIC DISTORTION Tuning range AM tuning interval: 17 watts per channel minimum continuous average power into 4 ohms, 530 –...
Power amplifier section TABLE OF CONTENTS Outputs Speaker outputs (sure seal connectors) GENERAL Speaker impedance 4 – 8 ohms Maximum power output 40 W × 4 (at 4 ohms) Location of Controls ............3 Resetting the Unit ............4 General Detaching the Front Panel ..........
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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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5 screw (PTT2.6 × 6) SUB PANEL, MACHANISM DECK (MG-25F-136) 3 connector (CN351) 6 mechanism deck (MG-25F-136) 4 flexible flat cable (CN301) 2 sub panel 1 three screws (PTT2.6 × 8) 1 three screws (PTT2.6 × 8) 5 three screws (PTT2.6 ×...
SECTION 3 ASSEMBLY OF MECHANISM DECK Note: Follow the assembly procedure in the numerical order given. 5 Fit projection on C part. HOUSING 7 Holder the hanger by bending the claw. 2 Install the hanger onto two claws of the housing. 1 Install the catch to the hanger.
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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 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 Noise Focus Adjustment (E model only) TUNER SECTION Setting: US/Canadian model, a tuner section is no adjustment. [SOURCE] button: FM FREQUENCY SELECT switch: FM 200 k 0 dB=1 µV FM RF signal level meter antenna jack (J1) generator Cautions during repair 0.01 µ...
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AM (MW) Auto Scan/Stop Level Adjustment Adjustment Location: Make this adjustment after “FM Auto Scan/Stop Level Adjustment”. Setting: – SET UPPER VIEW – [SOURCE] [MODE] button: MW FREQUENCY SELECT switch: MW 10 k Tape Speed Adjustment 30 Ω 15 pF 65 pF AM RF signal generator...
SECTION 6 DIAGRAMS 6-1. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC501 µPD17708GC-567-3B9 (SYSTEM CONTROLLER) Pin No. Pin Name Function AMSSEL Setting terminal for the AMS selection fixed at “L” POS3 POS2 Tape position detect input from tape operation switch on the mechanism block POS0 POS1 TAPEON...
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Pin No. Pin Name Function MW/SW selection signal output to the FM/AM tuner unit (TU1) “L”: MW, “H”: SW MW/SW Used for the E mode BEEP Beep sound output terminal Input of acknowledge signal for the key entry Acknowledge signal is input to accept function KEYACK and eject keys in the power off status On at input of “L”...
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Serial data transfer clock signal output to the bus interface (IC581) (for SONY bus) BUSON Bus on/off control signal output to the bus interface (IC581) (for SONY bus) “L”: bus on SYSRST Reset signal output to the bus interface (IC581) (for SONY bus) “L”: reset...
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IC351 LB1638M IC581 BA8270F-E2 N.C. BUS ON BUS ON SWITCH RESET OUT1 SWITCH BUS ON CLK IN BATTERY BATT BU IN SWITCH OUT2 VREF N.C. DATA DATA IN DATA OUT IC611 BA3918-V2 REGULATOR OVER VOLTAGE PROTECT – 2 3 4 –...
SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they may have some difference from the original are seldom required for routine service. Some one. delay should be anticipated when ordering •...
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* 117 3-018-611-01 HOLDER (LCD) * 106 3-019-149-01 PLATE, LCD 3-009-295-01 PANEL, FRONT BACK X-3374-687-1 PANEL SUB ASSY 3-904-194-01 EMBLEM (NO. 2.5), SONY 3-016-938-01 BUTTON (SOURCE) * 120 3-024-391-01 SHEET (LCD) 3-018-658-01 BUTTON (L) (+ + ). SEEK AMS. * 121 3-024-846-01 SHEET (LCD) B = 0 -.
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(3) MECHANISM DECK SECTION (MG-25F-136) HP901 M901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3291-667-A CLUTCH (FR) ASSY 3-933-346-01 CATCHER * 152 3-019-130-01 LEVER (LDG-A) 3-933-344-01 GUIDE (C) * 153 3-019-131-01 LEVER (LDG-B) 3-014-798-01 SCREW (HEAD), SPECIAL 3-020-539-01 SPRING (LD-1), TENSION 3-364-151-01 WASHER 3-020-540-01 SPRING (LD-2), TENSION...
SECTION 8 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they When indicating parts by reference number, please include the board. parts list may be different from the parts speci- are seldom required for routine service.
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R924 1-216-651-11 METAL CHIP 0.5% 1/10W 1-163-017-00 CERAMIC CHIP 0.0047uF 5% 1-164-222-11 CERAMIC CHIP 0.22uF R925 1-216-655-11 METAL CHIP 1.5K 0.5% 1/10W C101 1-163-263-11 CERAMIC CHIP 330PF R926 1-216-655-11 METAL CHIP 1.5K...