XR-1800/1803/1804

SERVICE MANUAL
AEP Model UK Model E Model

XR-1800

East European Model

XR-1803

Saudi Arabia Model

XR-1804

Photo: XR-1804
Model Name Using Similar Mechanism Tape Transport Mechanism Type

NEW MG-36SZ9-32

SPECIFICATIONS

Continued on next page

XR-1800: AEP, UK Model/XR-1803
FM/MW/LW CASSETTE CAR STEREO

XR-1800: E Model

FM/AM CASSETTE CAR STEREO
FM/MW/SW CASSETTE CAR STEREO

MICROFILM

TABLE OF CONTENTS 1. GENERAL
Button Locations... Setting the Clock... Installation... Connections... 4 4

2. 3. 4.

DISASSEMBLY.. 6 MECHANICAL ADJUSTMENTS.. 10 ELECTRICAL ADJUSTMENTS
Tape Deck Section... 10 Tuner Section... 11

DIAGRAMS

5-1. IC Pin Function Description.. 14 5-2. Note for Printed Wriring Boards and Schematic Diagrams.. 16 5-3. Printed Wiring Board Main Section . 17 5-4. Schematic Diagram Main Section (1/2) . 19 5-5. Schematic Diagram Main Section (2/2) . 21 5-6. Printed Wiring Board PANEL Section .. 23 5-7. Schematic Diagram PANEL Section .. 23
EXPLODED VIEWS.. 26 ELECTRICAL PARTS LIST. 32
Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat.

SECTION 1 GENERAL

This section is extracted from instruction manual.

SECTION 2 DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

COVER ASSY

3 cover assy

MECHANISM DECK BLOCK

1 two screws (PTT2.6 6) 1 two screws (PTT2.6 6)

2 connector (CN901)

3 mechanism deck block

MAIN BOARD, HEAT SINK

1 five screws (PTT2.6 8) 3 two screws (ground point)

1 two screws (PTT2.6 6)

2 heat sink 4 main board
MECHANISM DECK (MG-36SZ9-32)
3 mechanism deck (MG-36SZ9-32)

2 bracket (MD)

1 two screws (P2.6 4)
MOTOR ASSY (CAPSTAN/REEL) (M901)

2 belt

1 two screws (P2 3)
3 motor assy (CAPSTAN/REEL) (M901)

CASSETTE HANGER (X)

1 Remove the claw toward direction. 4 two claws 5 cassette hanger 3 boss 3 boss 2 Remove the return link toward direction.
1 Remove the claw toward direction.

CASSETTE HOLDER (X)

2 Removal the cassette holder (x) to direction of the arrow.
A 1 Push an arrow A part.
SECTION 3 MECHANICAL ADJUSTMENTS
1. Clean the following parts with a denatured-alcohol-moistened swab: playback head pinch roller rubber belt capstan idler 2. Demagnetize the playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. The adjustments should be performed with the power supply voltage (14.4 V) unless otherwise noted. Torque Measurement
Mode Forward Forward Back Tension Reverse Reverse Back Tension FF, REW Torque Meter CQ-102C CQ-102C CQ-102RC CQ-102RC CQ-201B Meter Reading gcm (0.35 0.76 ozinch) 1.gcm (0.02 0.06 ozinch) gcm (0.35 0.76 ozinch) 1.gcm (0.02 0.06 ozinch) gcm (0.69 2.08 ozinch)

SECTION 4 ELECTRICAL ADJUSTMENTS

TAPE DECK SECTION

0 dB= 0.775 V
1. The adjustments should be performed in the order given in this service manual. 2. The adjustments should be performed for both L-CH and R-CH. Test Tape
Type P-4-A063 WS-48A Signal 6.3 kHz, 10 dB 3 kHz, 0 dB Used for head azimuth adjustment tape speed adjustment
PB Head Azimuth Adjustment Procedure: 1. Put the set into the FWD PB mode.
test tape P-4-A063 (6.3 kHz, 10 dB) set level meter 4

speaker out terminal

Tape Tension Measurement
Mode Forward Reverse Tension Meter CQ-403A CQ-403R Meter Reading more than 60 g (more than 2.12 oz)
2. Turn the screw and check the output peak value. Adjust the screw so that the peak value in channels L and R coincides within 2 dB.

L-CH peak output level

within 2 dB within 2 dB

screw position

R-CH peak L-CH peak R-CH peak
3. Check the phase in the FWD PB mode.
test tape P-4-A063 (6.3 kHz, 10 dB) L-CH set 4 V H + +

oscilloscope

4 speaker out terminal Screen pattern

in phase 45 good

180 wrong
4. Repeat the above adjustment for the REV PB mode. 5. Check that output level difference between FWD PB mode and REV PB mode is within 4 dB. Adjustment Location: PB head

TUNER SECTION

XR-1800 E model, a tuner section is no adjustment. 0 dB=1 V Cautions during repair When the tuner unit is defective, replace it by a new one because its internal block is difficult to repair.
FWD adjustment screws REV
Note: Adjust the tuner section in the sequence shown below.

1. 2. 3. 4.

FM Auto Scan/Stop Level Adjustment FM Noise Focus Adjustment FM Stereo Separation Adjustment MW Auto Scan/Stop Level Adjustment
FM Auto Scan/Stop Level Adjustment Setting: [TUNER] button: FM 1 FREQUENCY SELECT switch: FM50 k (XR-1804 only)
FM RF signal generator dummy antenna 0.1pF antenna jack (CN900) set
Carrier frequency Output level Mode Modulation
: 98.0 MHz : 28 dB (25.1 V) : mono : 1 kHz, 22.5 kHz deviation (30%)

digital voltmeter

See the adjustment location from on page 13 for the adjustment. Tape Speed Adjustment Setting:
speed checker or frequency counter 4 set +

MAIN board

TP2 (SD) +
test tape WS-48A (3 kHz, 0 dB)

Procedure: 1. Tune the set to 98.0 MHz. 2. Connect the digital voltmeter to TP2 (SD) on MAIN board. 3. Adjust RV2 on TU100 so that the reading on the digital voltmeter changes point from low to high. Adjustment Location: See page 13.
Procedure: 1. Put the set into the FWD PB mode. 2. Adjust adjustment resistor for inside capstan motor so that the reading on the speed checker or frequency counter becomes in specification. Specification: Constant speed
Speed checker 2 to +3% Frequency counter 2,940 to 3,090 Hz
Adjustment Location: See page 13.
FM Noise Focus Adjustment (XR-1804 only) Setting: [TUNER] button: FM1 FREQUENCY SELECT switch: FM 50 k
FM RF signal generator antenna jack (CN900) 0.01 F set 4 + level meter
MW Auto Scan/Stop Level Adjustment Setting: [TUNER] button: MW FREQUENCY SELECT switch: MW 9 k (XR-1804 only)

AM RF signal generator

speaker out terminal : 98.0 MHz : 60 dB (1 mV) : mono : 1 kHz, 75 kHz deviation (100%)

AM dummy antenna (50 )

Procedure: 1. Tune the 98.0 MHz. 2. The then output level is supposing that (A) dB. 3. Adjust with the volume RV3 on TU100 so that the output level is (A) 32 dB then signal generator input set to 20 dB. Adjustment Location: See page 13. FM Stereo Separation Adjustment Setting: [TUNER] button: FM1 FREQUENCY SELECT switch : FM 50 k (XR-1804 only)
Carrier frequency : 999 kHz 30% amplitude modulation by 1 kHz signal Output level : 33 dB (44.7 V)

antenna jack (CN900)

digital voltmeter MAIN board
Procedure: 1. Tune the set to 999 kHz 2. Connect the digital voltmeter to TP2 (SD) on MAIN board. 3. Adjust RV1 on TU100 so that the reading on the digital voltmeter changes point from low to high. Adjustment Location: See page 13.
speaker out terminal : 98.0 MHz : 76 dB (6.3 mV) : stereo : main: 1 kHz, 33.75 kHz deviation (45%) sub: 1 kHz, 33.75 kHz deviation (45%) 19 kHz pilot: 7.5 kHz deviation (10%)

Procedure:

FM Stereo signal generator output channel L-CH R-CH R-CH L-CH Level meter connection L-CH L-CH R-CH R-CH Level meter reading (dB) A B Adjust RV4 on TU100 for minimum reading. C D Adjust RV4 on TU100 for minimum reading.

L-CH Stereo separation: A-B R-CH Stereo separation: C-D The separations of both channels should be equal. Specification: Separation more than 26 dB Adjustment Location: See page 13.

Adjustment Location:

SET UPPER VIEW

Tape Speed Adjustment

TU100 RV1 MW Auto Scan/Stop Level Adjustment RV2 FM Auto Scan/Stop Level Adjustment RV3 FM Noise Focus Adjustment RV4 FM Stereo Separation Adjustment CN901

SET BOTTOM VIEW

S1 FREQUENCY SELECT SWITCH
10 k (MW) 200 k (FM) 9 k (MW) 50 k (FM)

TP2 (SD)

SECTION 5 DIAGRAMS
5-1. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC1 (SYSTEM CONTROLLER) LC72322N-9400 (XR-1800), LC72322N-9399 (XR-1803), LC72322N-9412 (XR-1804) Pin No. 23, 36 to to 48 Pin Name XIN TEST2 NC AM-SD FM-SD STEREO MOTOR AMP-MUTE2 MW/SW BEEP POWER-ON ILL-ON N/R TAPE-IN FF-REW K1 K0 AMP-ON SEEK SEEK LOCAL/DX T2 T1 T0 VOL-CE VOL-DI VOL-CL VDD MUTE-REQ BAND-KEY PANEL-IN NC MUTE AMP-MUTE ANT-REM I/O I I I I I I O O O O O O O I I I I I O O O O O O O O O O O I I I I O O O O O O System clock input terminal (4.5 MHz) Connected to ground Not used (fixed at H) AM signal meter voltage detection input from the FM/AM tuner unit (TU100) H active FM signal meter voltage detection input from the FM/AM tuner unit (TU100) H active Stereo detection signal input from the FM/AM tuner unit (TU100) (Commonly used for stereo display input) FM stereo detection at input of L Capstan/reel motor (M901) drive signal output H: motor on Muting control signal output to the power amplifier (IC500) L: muting on MW/SW selection signal output to the FM/AM tuner unit (TU100) H: MW, L: SW Used for the XR-1804 only Not used (open) Beep sound signal output terminal H active Power on/off control signal output H: power on Power on/off control signal output for the liquid crystal display driver (IC900), illumination lamp and back light lamp H: power on Tape direction switch (S901) input terminal H: forward side, L: reverse side Tape in detection switch (S903) input terminal L: tape in FF/REW detection switch (S902) input terminal L: FF/REW mode Key matrix return signal input terminal Not used (fixed at L) Key matrix return signal input terminal Standby on/off signal output to the power amplifier (IC500) L: standby, H: amp on Seek control signal output to the FM/AM tuner unit (TU100) H active Used for the XR-1800: E model only Seek control signal output to the FM/AM tuner unit (TU100) L active Used for the except XR-1800: E model Local/DX selection signal output to the FM/AM tuner unit (TU100) L: DX, H: local Not used (open) Key matrix scan signal output terminal Used for the XR-1800: E model and XR-1804 Key matrix scan signal output terminal Not used (open) Key matrix scan signal output terminal Used for the XR-1800: AEP, UK models Chip enable signal output to the electrical volume (IC450) H active Serial data output to the electrical volume (IC450) H active Serial data transfer clock signal output to the electrical volume (IC450) Power supply terminal (+5V) Muting request signal input terminal (H active) L: accessory on, H: accessory off TUNER switch (S900) input terminal L is input when pressing the switch Detects the removal of the attaching and removing type front panel block L: attaching Not used (fixed at L) Not used (open) Audio muting on/off control signal output terminal H: muting on Not used (open) Not used (open) Amp muting on/off control signal output terminal L: muting on Not used (open) Control signal output for the external power antenna and external amplifier H active Not used (open) Function

Pin No. to 64, 79 80

Pin Name KS2 KS1 KS0 LCD-CLK LCD-CE LCD-DATA AM-ON MONO FM-ON TUNER-ON MW/LW NC CE RESET KEY-IN IFIN NC BU-CHECK VDD FMIN AMIN VSS EO TEST1 XOUT
I/O O O O O O O O O O O O O O O I I I I I I I I I O O I O Not used (open) Key matrix scan signal output terminal

Function

Serial data transfer clock signal output to the liquid crystal display driver (IC900) Chip enable signal output to the liquid crystal display driver (IC900) Serial data output to the liquid crystal display driver (IC900) AM system power supply on/off control signal output terminal Not used (open) Not used (open) FM system power supply on/off control signal output terminal Tuner system power supply on/off control signal output terminal Not used (open) MW/LW selection signal output terminal Not used (open) Not used (fixed at L) Accessory switch on/off detection signal input terminal H: accessory on, L: accessory off (hold mode) System reset signal input terminal L: reset Key matrix return signal input terminal (A/D input) FM and AM intermediate frequency detection signal input from the FM/AM tuner unit (TU100) Not used (fixed at L) Battery detect signal input terminal Power supply terminal (+5V) FM local oscillator input from the FM/AM tuner unit (TU100) AM local oscillator input from the FM/AM tuner unit (TU100) Ground terminal Main charge-pump control signal output terminal Not used (open) Connected to ground System clock output terminal (4.5 MHz) L: MW, H: LW H: FM on H: tuner on Not used (open) H active H active H: AM on
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Waveform

Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. : internal component. 2 : nonflammable resistor. C : panel designation. U : B+ Line. Power voltage is dc 14.4V and fed with regulated dc power supply from ACC and BATT cords. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : MW : SW (XR-1804 only) [ ] : TAPE PLAYBACK Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : FM f : MW (LW/SW) E : TAPE PLAYBACK Note on Printed Wiring Boards: X : parts extracted from the component side. Y : parts extracted from the conductor side. : internal component. b : Pattern from the side which enables seeing.

1 IC(XIN)

2 Vp-p

222 ns

5-3. PRINTED WIRING BOARD MAIN Section

Semiconductor Location

Ref. No. D1 D2 D3 D10 D12 D13 D14 D15 D16 D17 D18 D19 D20 D100 D350 D351 D503 D506 D551 D600 D601 D602 D603 D605 D606 D607 D608 D609 D610 D611 D620 D621 IC1 IC350 IC450 IC500 Q10 Q30 Q31 Q32 Q60 Q100 Q101 Q102 Q103 Q104 Q105 Q106 Q350 Q351 Q553 Q554 Q600 Q601 Q602 Q604 Q605 Q606 Q608 Q610 Q611 Q612 Location J-4 H-6 G-6 H-3 I-2 I-5 I-5 I-6 I-6 I-6 I-6 I-6 I-6 G-9 I-8 G-9 D-7 E-6 D-6 E-5 E-2 F-2 E-3 E-4 C-4 F-5 E-6 E-2 F-5 F-5 C-5 E-5 H-4 H-9 H-7 C-7 F-2 I-7 H-6 H-6 F-3 E-9 E-9 F-9 F-9 G-8 F-8 F-3 J-7 J-7 C-9 C-9 F-2 D-2 E-2 F-3 F-4 F-4 F-4 F-5 F-5 F-3
5-4. SCHEMATIC DIAGRAM MAIN Section (1/2) See page 16 for Waveform.
5-5. SCHEMATIC DIAGRAM MAIN Section (2/2) See page 27 for IC Block Diagram.
5-6. PRINTED WIRING BOARD PANEL Section
Ref. No. Location B-9 C-10 C-7 C-6 C-8 B-9 D4 D900 D901 D902 D903 IC900
5-7. SCHEMATIC DIAGRAM PANEL Section

2 IC900 # (OSC)

2.2 Vp-p
IC Block Diagram MAIN Board IC450 LC75372E
R10dBOUT RCT2 RT1 RCT1 RT2 R10dBIN RSELO RT3

ROUT 34

RVREF RVREF +

RVREF + +

RVREF 22 RRTEST
RFIN 35 RFOUT 36 + RVREF RVREF

RROUT 37

RVREF 38 VREF 39 LVREF 40 LVREF LROUT 41 +

LFOUT 42 LFIN 43

LVREF LVREF LOUT 44 + LVREF LVREF

L10dBIN LSELO

L10dBOUT
+ 19 VSS 18 NC + LATCH RVREF DECODER SHIFT REGISTER CONTROL 17 CL 16 DI 15 CE + + RVREF LVREF LVREF LVREF 14 VDD 13 LL11

SECTION 6 EXPLODED VIEWS

NOTE: -XX and -X mean standardized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE). (RED) Parts Color Cabinet's Color Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Hardware (# mark) list and accessories and packing materials are given in the last of the electrical parts list.

(1) GENERAL SECTION

MG-36SZ9-32

#2 #2 F901

#4 #4 #2
#2 Front panel section not supplied

Ref. No. * * 9

Part No. 3-022-475-01 X-3367-636-1 3-924-404-01 3-924-404-11 3-924-404-41 3-377-892-01 3-022-479-01 3-937-529-01 3-937-528-01 3-376-464-11

Description

Remark
Ref. No. * 10 * * 13 * 14 * * * * * 16 F901
Part No. X-3375-529-1 3-022-470-01 1-776-207-41 3-022-477-01 A-3313-751-A A-3313-844-A A-3313-845-A A-3313-904-A 3-022-487-01 3-022-476-01
PANEL, SUB LOCK ASSY DOOR, CASSETTE (XR-1800: E) DOOR, CASSETTE (XR-1800: AEP, UK/1803) DOOR, CASSETTE (XR-1804) SPRING (C DOOR), TORSION BRACKET (MD) COVER (FF/REW) COVER (EJECT) SCREW (+PTT 2.6X6), GROUND POINT
COVER ASSY BRACKET (IC) CORD (WITH CONNECTOR) (POWER) HEAT SINK MAIN BOARD, COMPLETE (XR-1800: E) MAIN BOARD, COMPLETE (XR-1800: AEP, UK) MAIN BOARD, COMPLETE (XR-1803) MAIN BOARD, COMPLETE (XR-1804) SHEET, INSULATING CHASSIS, MAIN
3-022-469-01 SPRING, GROUND
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) (10A)

(2) FRONT PANEL SECTION

LCD900

not supplied (KEY board)

Ref. No. * 59 * 60
Part No. 3-375-372-01 3-022-485-01 3-022-486-01 3-922-513-01 3-022-483-01 3-022-484-01 3-922-514-01 3-022-473-01 3-022-473-11 3-022-473-21
Description SPRING (F/R) BUTTON (FF) ()) BUTTON (REW) (0) SPRING (EJECT), COMPRESSION BUTTON (EJECT) (6) BUTTON (RELEASE) SPRING (RELEASE), COMPRESSION PANEL, FRONT (XR-1800) PANEL, FRONT (XR-1803) PANEL, FRONT (XR-1804)
Ref. No. * 61 * * 64 * 65 66
Part No. 3-027-172-01 3-022-482-01 3-022-474-01 3-022-468-01 3-022-478-01
Description INSULATOR (L) PLATE (LCD), LIGHT GUIDE PANEL, FRONT BACK SPRING, GROUND PLATE, LIGHT GUIDE
3-022-471-01 PLATE (LCD), GROUND 3-024-264-01 ILLUMINATOR
3-022-480-01 BLOCK (A), BUTTON (. SEL. +. SEEKMANU. +. LOUD. TUNER. OFF) 67 3-022-481-01 BLOCK (B), BUTTON (DSPL. 1. 2. 3. 4. 5. 6. LCL) LCD900 1-803-137-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-1800) LCD900 1-803-138-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-1804) LCD900 1-803-139-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-1803)

(3) MECHANISM DECK SECTION-1 (MG-36SZ9-32)

108 109

#113 105

112 104

#4 not supplied

102 101

not supplied S901

Ref. No. * * 111 112

Part No. 3-938-660-01 3-392-950-01 3-392-951-01 3-375-384-01 3-392-921-01 3-392-972-01 3-392-953-01 3-392-969-01 3-392-932-01 3-392-961-01
Description LEVER, EJECT SPRING SPRING HOLDER (X), CASSETTE LOCK ASSY, EJECT CAM HOOKER, TAPE SPRING LINK, RETURN PLATE, CENTER SPRING (B)
Ref. No. * 119 * 120 * 121 122
Part No. 3-392-954-01 3-392-994-01 3-392-933-01 3-392-948-01 3-938-658-01 3-938-659-01 3-392-917-01 3-392-935-01 3-372-242-01 3-392-970-01
Description SPRING ROLLER, PROGRAM LEVER (B), CHANGE SPRING LEVER, FF
LEVER, REW SPRING ARM, LOCK BRACKET ASSY (D), LEVER CHASSIS, SWITCH (DIRECTION SWITCH BOARD)
3-375-383-01 HANGER (X), CASSETTE 3-372-243-01 LINK (B), SELECTOR

* 123 S901

4-908-792-11 SCREW (B2) 1-692-502-11 SWITCH, SLIDE (DIRECTION)
(4) MECHANISM DECK SECTION-2 (MG-36SZ9-32)

161 162

167 163

#12 #11

157 165

153 152

Ref. No. 155 * 160 * 161 162
Part No. 3-570-615-02 3-392-945-01 3-392-942-01 3-375-378-01 3-392-958-01 3-392-975-05 3-377-908-01 3-392-956-01 3-392-943-01 3-676-387-00
Description POLY-WASHER (DIA.1.2) ROLLER (A), H.P ROLLER (B), H.P ARM (R) ASSY, PINCH SPRING (R) PLATE ASSY (S), HEAD SHIM (X), ADJUSTOR SPRING (A) ROLLER, FF POLY-SLIDER (DIA.1.6)
Ref. No. 163 * 170 * * 173 HP901
Part No. 3-375-379-01 3-379-142-01 3-392-984-02 3-377-909-02 3-392-957-01 3-375-377-01 3-392-952-01 3-392-962-01 3-392-919-01 3-372-244-01
Description SCREW, AZIMUTH ARM (B), ADJUSTOR GUIDE, TAPE LINK (X), ADJUSTOR SPRING (F) ARM (F) ASSY, PINCH SPRING SPRING ARM ASSY, F,R SELECTION ARM (N), MUTE
3-392-930-01 RETAINER, SPRING 3-392-955-01 SPRING (A)
3-397-427-01 COLLAR, MUTE ARM 1-543-717-11 HEAD, MAGNETIC (PLAYBACK)
(5) MECHANISM DECK SECTION-3 (MG-36SZ9-32)

not supplied

Ref. No. * 209 210
Part No. 3-392-959-01 3-392-985-02 4-908-792-11 3-392-960-01 3-392-987-01 3-392-990-01 3-676-387-00 3-392-944-01 3-375-131-01 3-392-989-02
Description SPRING RATCHET SCREW (B2) SPRING GEAR, SELECTOR GEAR, DETECTION POLY-SLIDER (DIA.1.6) COLLAR (SELECTOR GEAR) SPRING, GEAR LOCK ARM ARM, GEAR LOCK

Ref. No. * 219

Part No. 3-392-937-01 3-570-615-02 3-392-915-01 3-392-986-01 3-392-936-01 3-376-196-01 3-375-380-01 3-370-619-01 3-392-976-01
Description GEAR (B) POLY-WASHER (DIA.1.2) GEAR, IDLE ARM, SENSOR GEAR (A) SPINDLE ASSY (S), REEL CAM ASSY, DETECTION SPRING, BACK TENSION BASE ASSY, REEL
(6) MECHANISM DECK SECTION-4 (MG-36SZ9-32)

S903 S902 not supplied

266 267

Ref. No. 255 * * 264

Part No. 3-392-967-01 3-392-995-02 3-375-375-02 3-392-918-01 3-392-938-01 3-392-979-01 3-392-916-01 3-318-203-11 3-701-437-11 3-590-768-00
Description BELT, MAIN FLYWHEEL ASSY (BR) BELT (C), SUB SCREW, EJECT HOOK GEAR, PULLY LEVER, REVERSE ARM ASSY, TU GEAR SCREW (B1.7X6), TAPPING POLY-SLIDER (A) RING (A), E
Ref. No. 267 * 268 * 269 * M901 S902 S903
Part No. 3-392-963-01 3-318-204-91 3-375-376-01 3-392-925-01 3-392-939-01 3-392-934-01 3-570-615-02 3-392-941-01 3-392-926-02 X-3364-496-1
SPRING (R) SCREW (M1.7X4), TAPPING MUTE (PWB) (MUTE SWITCH BOARD) ARM (A) ASSY, F.R ARM, FF ARM (B), F.R POLY-WASHER (DIA.1.2) PULLEY (A), IDLE FLYWHEEL ASSY (BF) MOTOR ASSY (CAPSTAN/REEL)
3-318-204-81 SCREW (M1.7X3), TAPPING 3-375-381-01 BRACKET ASSY (X), CM
1-692-065-11 SWITCH, LEAF (FF/REW) 1-554-790-21 SWITCH, POWER (TAPE DETECT)
NOTE: Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX and -X mean standardized parts, so they may have some difference from the original one. RESISTORS All resistors are in ohms. METAL: Metal-film resistor. METAL OXIDE: Metal oxide-film resistor. F: nonflammable
SECTION 7 ELECTRICAL PARTS LIST
Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. SEMICONDUCTORS In each case, u: , for example: uA. : A. uPA. : PA. uPB. : PB. uPC. : PC. uPD. : PD. CAPACITORS uF: F COILS uH: H When indicating parts by reference number, please include the board.

Ref. No.

Part No.
Description KEY BOARD **********
Description < LIQUID CRYSTAL DISPLAY >

* * * *

3-022-466-01 3-022-471-01 3-022-482-01 3-024-264-01
REFLECTOR PLATE (LCD), GROUND PLATE (LCD), LIGHT GUIDE ILLUMINATOR < CAPACITOR >
LCD900 1-803-137-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-1800) LCD900 1-803-138-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-1804) LCD900 1-803-139-11 DISPLAY PANEL, LIQUID CRYSTAL (XR-1803) < PILOT LAMP > PL900 1-517-534-11 LAMP, PILOT (LCD BACK LIGHT, ILLUMINATION) 1-517-534-11 LAMP, PILOT (LCD BACK LIGHT, ILLUMINATION) 1-517-534-11 LAMP, PILOT (ILLUMINATION) 1-517-534-11 LAMP, PILOT (ILLUMINATION) < RESISTOR >

C900 C901 C902 C903 C904

1-163-006-11 1-163-133-00 1-164-005-11 1-164-005-11 1-164-005-11
CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP CERAMIC CHIP < CONNECTOR >
560PF 470PF 0.47uF 0.47uF 0.47uF

10% 5%

50V 50V 25V 25V 25V

PL901 PL902 PL903

1-764-422-11 PLUG, CONNECTOR 12P < DIODE >
R900 R901 R902 R903 R904 R905 R906
1-216-091-00 1-216-053-00 1-216-062-00 1-216-062-00 1-216-059-00

1-216-073-00 METAL CHIP 1-216-029-00 METAL CHIP 1-216-031-00 RES,CHIP 1-216-049-11 RES,CHIP 1-216-295-00 SHORT 1-216-198-00 RES,CHIP 1-216-061-00 METAL CHIP 1-216-073-00 METAL CHIP 1-216-077-00 METAL CHIP 1-216-075-00 METAL CHIP
5% 1/10W 5% 1/10W (EXCEPT XR-1800: E) 180 5% 1/10W (XR-1800: E) 1K 5% 1/10W (XR-1800: AEP, UK/1803) 0 (XR-1800: E/1804) 1K 3.3K 10K 15K 12K 1/8W (XR-1800: E) 5% 1/10W (EXCEPT XR-1800: E) 5% 1/10W (EXCEPT XR-1800: E) 5% 1/10W (XR-1800: E) 5% 1/10W (EXCEPT XR-1800: E) 1/10W (XR-1800: E) 5% 1/10W (EXCEPT XR-1800: E) 5% 1/10W (XR-1800: E) 5% 1/10W (EXCEPT XR-1800: E) 5% 1/10W (XR-1800: E) 5% 5% 5%

R250 R250 R251 R251 R252

1-216-049-11 RES,CHIP 1-216-071-00 METAL CHIP 1-216-049-11 RES,CHIP 1-216-071-00 METAL CHIP 1-216-067-00 METAL CHIP

1K 8.2K 1K 8.2K 5.6K

R252 R252 R253 R253 R253
1-216-073-00 METAL CHIP 1-216-077-00 METAL CHIP 1-216-067-00 METAL CHIP 1-216-073-00 METAL CHIP 1-216-077-00 METAL CHIP
1/10W (XR-1804) 15K 5% 1/10W (XR-1800: AEP, UK/1803) 5.6K 5% 1/10W (XR-1800: E) 10K 5% 1/10W (XR-1804) 15K 5% 1/10W (XR-1800: AEP, UK/1803) 100K 10K 47K 47K 15K 15K 560K 560K 10K 100K 100 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/10W 1/4W
R350 R351 R352 R353 R354 R355 R356 R357 R358 R359 R360 R361 R362
1-216-097-00 1-216-073-00 1-216-089-00 1-216-089-00 1-216-015-00 1-216-015-00 1-216-077-00 1-216-077-00 1-216-115-00 1-216-115-00
RES,CHIP METAL CHIP RES,CHIP RES,CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP
1-216-073-00 METAL CHIP 1-216-097-00 RES,CHIP 1-247-807-31 CARBON
Ref. No. R635 R636 R907 Part No. Description 2.2 10K 0 5% 5% Remark 1/2W 1/10W Ref. No. Part No. Description ************** HARDWARE LIST ************** #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 7-621-772-10 7-685-792-09 7-685-793-09 7-685-790-01 7-685-106-19 7-627-553-88 7-621-255-15 7-621-255-20 7-685-781-09 7-621-555-10 SCREW +B 2X4 SCREW +PTT 2.6X6 (S) SCREW +PTT 2.6X8 (S) SCREW +PTT 2.6X4 (S) TPG +P 2X10, TYPE 2, NON-SLIT SCREW, PRECISION +P 2X7 SCREW +P 2X3 SCREW +P 2X4 SCREW +PTT 2X4 (S) SCREW +K 2X3 Remark 1-249-478-11 CARBON 1-216-073-00 METAL CHIP 1-216-296-00 SHORT < SWITCH > S1 1-571-478-11 SWITCH, SLIDE (FREQUENCY SELECT) (XR-1800: E/1804) < TUNER UNIT > TU100 TU100 TU100 TU100 A-3282-019-A TUX-008 (EA) (FM/AM TUNER UNIT) (XR-1804) A-3282-029-A TUX-006/2 (E) (FM/AM TUNER UNIT) (XR-1800: AEP, UK) A-3282-031-A TUX-006/2 (EE) (FM/AM TUNER UNIT) (XR-1803) A-3282-034-A TUX-010 (E) (FM/AM TUNER UNIT) (XR-1800: E) < VIBRATOR > X1 1-567-713-11 VIBRATOR, CRYSTAL (4.5MHz) ************************************************************ MISCELLANEOUS ************** 12 F901 HP901 M901 S901 1-776-207-41 1-532-877-11 1-543-717-11 X-3364-496-1 1-692-502-11 CORD (WITH CONNECTOR) (POWER) FUSE (BLADE TYPE) (AUTO FUSE) (10A) HEAD, MAGNETIC (PLAYBACK) MOTOR ASSY (REEL/CAPSTAN) SWITCH, SLIDE (DIRECTION) 505 506

#11 7-621-591-00 SCREW +K 2X4 #12 7-624-102-04 STOP RING 1.5, TYPE -E #13 7-624-104-04 STOP RING 2.0, TYPE -E #14 7-624-118-01 RING, RETAINING E-2.5 ************************************************************ PARTS FOR INSTALLATION AND CONNECTIONS ************************************** X-3367-691-1 X-3366-405-1 X-3371-913-1 1-776-207-41 1-775-543-11 FRAME ASSY, FITTING SCREW ASSY (EXT), FITTING SCREW ASSY (J) CORD (WITH CONNECTOR) (POWER) CORD, GROUND (XR-1800: E)

3-018-384-01 COLLAR

S902 1-692-065-11 SWITCH, LEAF (FF/REW) S903 1-554-790-21 SWITCH, POWER (TAPE DETECT) ************************************************************ ACCESSORIES & PACKING MATERIALS ******************************** 3-862-558-11 MANUAL, INSTRUCTION (ENGLISH, SPANISH, CHINESE) (XR-1800: E) 3-862-558-21 MANUAL, INSTRUCTION (ENGLISH, ARABIC) (XR-1804) 3-862-558-31 MANUAL, INSTRUCTION (HUNGARIAN, RUSSIAN) (XR-1803) 3-862-558-41 MANUAL, INSTRUCTION (ENGLISH, SPANISH, PORTUGUESE, CZECH, ARABIC) (XR-1800: AEP, UK) 3-862-559-11 MANUAL, INSTRUCTION, INSTALL (ENGLISH, SPANISH, CHINESE) (XR-1800: E) 3-862-559-21 MANUAL, INSTRUCTION, INSTALL (ENGLISH, ARABIC) (XR-1804) 3-862-559-31 MANUAL, INSTRUCTION, INSTALL (HUNGARIAN, RUSSIAN) (XR-1803) 3-862-559-41 MANUAL, INSTRUCTION, INSTALL (ENGLISH, SPANISH, PORTUGUESE, CZECH, ARABIC) (XR-1800: AEP, UK) 3-862-559-51 MANUAL, INSTRUCTION, INSTALL (ENGLISH, FRENCH, ITALIAN, CZECH, TURKISH) (XR-1800: AEP, UK) ************************************************************

Sony Corporation

9-925-920-11
Personal & Mobile Communication Company
98C0563-1 Printed in Japan 1998. 3 Published by Quality Assurance Dept.