Aiwa XPR-231, XPR-234 Service manual

XP-R231

AHR(S)

XP-R234

SIMPLE-2

AEZ(S), AHK(S)
AHR(S)

SERVICE MANUAL

COMPACT DISC PLAYER

Apartofcontentsisadequate.
Re-issuing is under request.

• This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
(S/M Code No. 09-022-456-3T3).

BASIC CD MECHANISM : KSM-780 ATA

S/M Code No. 09-025-456-3R3

REVISION

DATA

SPECIFICATIONS

Tracking system 3-beam laser
Laser pickup Semiconductor laser
D/A conversion 8-times oversampling digital filter + 1-bit DAC
Frequency response 20 – 20,000 Hz
Output PHONES/LINE OUT jack (stereo mini-jack)
Frequency range AM: 531/530 kHz – 1,602/1,710 kHz

Maximum output 10 mW + 10 mW (16 ohms at 1 kHz) <AEZ only>

Power supply DC 3 V using two size AA (LR6) alkaline batteries

Maximum outside dimensions

Weight Approx. 216 g excluding batteries

(9 kHz/10 kHz steps)
FM: 87.5 – 108 MHz

12 mW + 12 mW (16 ohms at 1 kHz) <Except AEZ>
500 mV (47 kohms at 1 kHz)

DC 2.4 V using two optional rechargeable batteries
(Ni-Cd 1.2 V 700 mAh)
AC house current using the supplied AC adaptor

132 (W) x 26 (H) x 145 (D) mm
(excluding projecting parts and controls)

AC adaptor AC-D603 <XP–R231 AHR only>

AC adaptor AC-D603 <XP–R234 AEZ, AHK only>

AC adaptor AC-D603 <XP–R234 AHR only>

• Design and specifications are subject to change without notice.

Rated voltage: AC 115/230 V
switchable, 50/60 Hz

Rated voltage: AC 230 V, 50 Hz

Rated voltage: AC 115/230 V
switchable, 50/60 Hz

– 2 –

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.

WARNING!!

WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION.
BE SURE TO OBSERVE FROM A DISTANCE OF MORE
THAN 30cm FROM THE SURFACE OF THE OBJECTIVE
LENS ON THE OPTICAL PICK-UP BLOCK.

Caution: Invisible laser radiation when
open and interlocks defeated avoid
exposure to beam.
Advarsel: Usynlig laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.

VAROITUS!

Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa
mainitulla tavalla saataa altistaa käyt-täjän
turvallisuusluokan 1 ylittävälle näkymättömälle
lasersäteilylle.

VARNING!

Om apparaten används på annat sätt än vad som
specificeras i denna bruksanvising, kan användaren
utsättas för osynling laserstrålning, som överskrider
gränsen för laserklass 1.

CAUTION

Use of controls or adjustments or performance of proce­dures other than those specified herin may result in
hazardous radiation exposure.

ATTENTION

L’utillisation de commandes, réglages ou procédures
autres que ceux spécifiés peut entraîner une dangereuse
exposition aux radiations.

ADVARSEL

Usynlig laserståling ved åbning, når sikkerhedsafbrydereer
ude af funktion. Undgå udsættelse for stråling.

This Compact Disc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located on the
rear exterior.

CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
LUOKAN 1 LASER LAITE
KLASS 1 LASER APPARAT

Precaution to replace Optical block

(KSM – 780 ATA)

Body or clothes electrostatic potential could
ruin laser diode in the optical block. Be sure
ground body and workbench, and use care
the clothes do not touch the diode.

1) After the connection, remove solder
shown in the right figure.

CD PICKUP Assy PWB

Solder

– 3 –

ELECTRICAL PARTS LIST

! = ! SAFTY PARTS
C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
FLEX O 8C-HC5-601-010 PWB,FLEX CHC-5 a b c d
FLEX O LCD0001 8C-HC5-620-010 LCD,CHC-5 REFLEX a b c d
FLEX X W 0001 87-601-052-210 WIRE,P1-5-2 a b c d
MAIN O BPF0851 87-A91-681-010 FLTR,GFMB7-C1 a b c d
MAIN O C 0101 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0102 87-A12-979-010 CAP,E 100-25 M 7L SRG a b c d
MAIN O C 0201 87-A12-994-010 CAP,E 330-6 7L SAX a b c d
MAIN O C 0202 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0203 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0204 87-A10-047-080 C-CAP,U 1-10 Z F a b c d

MAIN O C 0205 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0206 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0207 87-A12-995-010 CAP,E 68-4 5L OSCON a b c d
MAIN O C 0208 87-A10-488-040 CAP,E 47-4 7L SR a b c d
MAIN O C 0209 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0210 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0211 87-010-787-080 C-CAP,U 0.022-25 K B GRM a b c d
MAIN O C 0212 87-010-872-080 C-CAP,U 470P-50 SL a b c d
MAIN O C 0213 87-A12-158-040 CAP,E 100-4 M 7L SRA a b c d
MAIN O C 0214 87-A10-488-040 CAP,E 47-4 7L SR a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0216 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0217 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0218 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0219 87-A12-158-040 CAP,E 100-4 M 7L SRA a b c d
MAIN O C 0220 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0221 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0222 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0301 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0302 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0303 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d

MAIN O C 0304 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0305 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0306 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0307 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0308 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0309 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0310 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0311 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0312 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0313 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0314 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0315 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0316 87-012-182-080 C-CAP,U 27P-50 J CH GRM a b c d
MAIN O C 0317 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0318 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0319 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0320 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0321 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0322 87-012-191-080 C-CAP,U 68P-50 J CH a b c d
MAIN O C 0323 87-012-191-080 C-CAP,U 68P-50 J CH a b c d

MAIN O C 0324 87-012-337-080 C-CAP,U 56P-50 J CH GRM a b c d
MAIN O C 0326 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0401 87-010-503-040 CAP,E 220-4 M 5L SRE a b c d
MAIN O C 0402 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0403 87-010-503-040 CAP,E 220-4 M 5L SRE a b c d
MAIN O C 0404 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0405 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0406 87-012-271-080 C-CAP,U 560P-50 K B a b c d
MAIN O C 0407 87-010-787-080 C-CAP,U 0.022-25 K B GRM a b c d
MAIN O C 0408 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0409 87-A10-827-080 C-CAP,U 0.47-6.3 K B a b c d
MAIN O C 0410 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0411 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0412 87-016-429-080 C-CAP,E 100-4 M WX a b c d
MAIN O C 0413 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0415 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0416 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0418 87-012-180-080 C-CAP,U 22P-50 J CH a b c d
MAIN O C 0419 87-012-180-080 C-CAP,U 22P-50 J CH a b c d
MAIN O C 0421 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d

MAIN O C 0422 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0423 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0451 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0452 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0501 87-010-502-040 CAP,E 100-4 M 5L SRE a b c d
MAIN O C 0502 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0503 87-010-787-080 C-CAP,U 0.022-25 K B GRM a b c d
MAIN O C 0504 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0505 87-012-271-080 C-CAP,U 560P-50 K B a b c d
MAIN O C 0506 87-012-193-080 C-CAP,U 82P-50 J CH a b c d

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

– 4 –

! = ! SAFTY PARTS
C = Components marked

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0507 87-012-270-080 C-CAP,U 470P-50 K B GRM a b c d
MAIN O C 0508 87-010-501-040 CAP,E 47-4 M 5L SRE a b c d
MAIN O C 0509 87-012-279-080 C-CAP,U 2700P-50 K B GRM a b c d
MAIN O C 0510 87-012-279-080 C-CAP,U 2700P-50 K B GRM a b c d
MAIN O C 0511 87-010-787-080 C-CAP,U 0.022-25 K B GRM a b c d
MAIN O C 0513 87-010-787-080 C-CAP,U 0.022-25 K B GRM a b c d
MAIN O C 0514 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0515 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0516 87-012-172-080 C-CAP,U 10P-50 D CH a b c d
MAIN O C 0517 87-012-184-080 C-CAP,U 33P-50 J CH GRM a b c d

MAIN O C 0518 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0520 87-010-501-040 CAP,E 47-4 M 5L SRE a b c d
MAIN O C 0521 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0522 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0523 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0524 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0701 87-010-503-040 CAP,E 220-4 M 5L SRE a b c d
MAIN O C 0702 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0703 87-012-272-080 C-CAP,U 680P-50 K B GRM a b c d
MAIN O C 0704 87-012-272-080 C-CAP,U 680P-50 K B GRM a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0705 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0706 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0707 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0708 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0709 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0710 87-010-501-040 CAP,E 47-4 M 5L SRE a b c d
MAIN O C 0711 87-012-172-080 C-CAP,U 10P-50 D CH a b c d
MAIN O C 0712 87-012-172-080 C-CAP,U 10P-50 D CH a b c d
MAIN O C 0713 87-010-828-080 C-CAP,U 0.033-16 Z F CM/CB a b c d
MAIN O C 0714 87-010-828-080 C-CAP,U 0.033-16 Z F CM/CB a b c d

MAIN O C 0715 87-012-172-080 C-CAP,U 10P-50 D CH a b c d
MAIN O C 0716 87-012-172-080 C-CAP,U 10P-50 D CH a b c d
MAIN O C 0717 87-010-503-040 CAP,E 220-4 M 5L SRE a b c d
MAIN O C 0718 87-010-503-040 CAP,E 220-4 M 5L SRE a b c d
MAIN O C 0719 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0720 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0801 87-012-277-080 C-CAP,U 1800P-50 K B GRM a b c d
MAIN O C 0802 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0803 87-012-292-080 C-CAP,U 270P-50 J UJ GRM a b c d
MAIN O C 0804 87-012-291-080 C-CAP,U 220P-50 J UJ GRM a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0805 87-012-245-080 C-CAP,U 15P-50 J UJ a b c d
MAIN O C 0806 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0807 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0812 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0813 87-010-831-080 C-CAP,U 0.1-16 Z F a b c d
MAIN O C 0821 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0822 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0823 87-010-805-080 C-CAP,S 1-16 Z F GRM a b c d
MAIN O C 0824 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0825 87-012-167-080 C-CAP,U 5P-50 C CH a b c d

MAIN O C 0826 87-012-337-080 C-CAP,U 56P-50 J CH GRM a b c d
MAIN O C 0827 87-012-170-080 C-CAP,U 8P-50 D CH a b c d
MAIN O C 0851 87-012-274-080 C-CAP,U 1000P-50 K B GRM a b c d
MAIN O C 0852 87-012-170-080 C-CAP,U 8P-50 D CH a b c d
MAIN O C 0853 87-A10-915-080 C-CAP,U 1000P-25 J CH a b c d
MAIN O C 0854 87-A10-039-080 C-CAP,U 470P-50 J CH a b c d
MAIN O C 0855 87-012-174-080 C-CAP,U 12P-50 J CH a b c d
MAIN O C 0856 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0857 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0858 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0859 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0860 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0861 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d
MAIN O C 0862 87-010-498-040 CAP,E 10-16 M 5L SRE a b c d
MAIN O C 0863 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0864 87-012-273-080 C-CAP,U 820P-50 K B GRM a b c d
MAIN O C 0865 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0866 87-010-501-040 CAP,E 47-4 M 5L SRE a b c d
MAIN O C 0867 87-A11-049-080 C-CAP,U 1-6.3 K B a b c d
MAIN O C 0868 87-A10-707-080 C-CAP,U 0.47-10 Z F a b c d

MAIN O C 0869 87-A11-049-080 C-CAP,U 1-6.3 K B a b c d
MAIN O C 0870 87-010-785-080 C-CAP,U 0.015-25 K B GRM a b c d
MAIN O C 0871 87-010-785-080 C-CAP,U 0.015-25 K B GRM a b c d
MAIN O C 0872 87-A10-707-080 C-CAP,U 0.47-10 Z F a b c d
MAIN O C 0873 87-A10-707-080 C-CAP,U 0.47-10 Z F a b c d
MAIN O C 0874 87-010-499-040 CAP,E 22-6.3 M 5L SRE a b c d
MAIN O C 0875 87-012-273-080 C-CAP,U 820P-50 K B GRM a b c d
MAIN O C 0876 87-A10-047-080 C-CAP,U 1-10 Z F a b c d
MAIN O C 0877 87-010-828-080 C-CAP,U 0.033-16 Z F CM/CB a b c d
MAIN O C 0878 86-ZA1-616-080 C-CAP,U 0.01-50 K B (MUR) a b c d

– 5 –

! = ! SAFTY PARTS
C = Components marked

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O C 0879 87-A11-062-080 C-CAP,S 2.2-16 Z F a b c d
MAIN O C 0880 87-A10-260-080 C-CAP,U 0.1-16 K B a b c d
MAIN O C 0881 87-012-178-080 C-CAP,U 18P-50 J CH a b c d
MAIN O C 0882 87-012-176-080 C-CAP,U 15P-50 J CH a b c d
MAIN O C 0893 87-A10-707-080 C-CAP,U 0.47-10 Z F a b c d
MAIN O C 0894 87-A10-707-080 C-CAP,U 0.47-10 Z F a b c d
MAIN O CF 0851 87-A91-162-010 FLTR,PFS450A7 a b c d
MAIN O CF 0852 87-A91-312-010 FLTR,SFE10.7MS 2C10-A a b c d
MAIN O CF 0853 87-A92-383-010 FLTR,CDA10.7 MG1-B a b c d
MAIN O CN 0301 87-A60-790-080 C-CONN,28P V 28FLT-SM1TB a b c d

MAIN O CN 0501 87-A61-857-080 C-CONN,16P H 52271 a b c d
MAIN O CN 0601 87-099-522-080 C-CONN,6P V ZH-SM3 a b c d
MAIN S D 0101 87-A41-128-040 C-DIODE,MC2850 a b c d
MAIN S D 0102 87-A40-554-040 C-DIODE,RB491D a b c d
MAIN S D 0201 87-A40-196-080 C-ZENER,UDZ6.2B a b c d
MAIN S D 0301 87-A40-395-080 C-ZENER,UDZ2.2B a b c d
MAIN S D 0406 87-A41-127-040 C-DIODE,MC2848 a b c d
MAIN O D 0801 87-A41-065-040 C-VARI-CAP,SVC347 a b c d
MAIN O D 0851 87-A40-916-040 C-VARI-CAP,HVC202A a b c d
MAIN O D 0852 87-A40-916-040 C-VARI-CAP,HVC202A a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O FB 0701 87-A50-715-080 C-COIL,BLM18B601 a b c d
MAIN O FB 0702 87-A50-715-080 C-COIL,BLM18B601 a b c d
MAIN O FB 0703 87-A50-715-080 C-COIL,BLM18B601 a b c d
MAIN O FB 0704 87-A50-715-080 C-COIL,BLM18B601 a b c d
MAIN S IC 0201 87-A22-162-030 C-IC,BH6570KV a b c d
MAIN S IC 0301 8C-HC5-605-030 C-IC,MN101C54AAA a b c d
MAIN S IC 0302 87-A22-181-040 C-IC,PST3818UL a b c d
MAIN S IC 0303 87-A22-271-040 C-IC,TK71518AS a b c d
MAIN S IC 0304 87-A22-252-040 C-IC,BR93LL46FV a b c d
MAIN S IC 0401 87-A22-226-030 C-IC,MN662786SBM a b c d

MAIN S IC 0451 87-A21-526-010 C-IC,GM71VLS17403CLT-1 a b c d
MAIN S IC 0501 87-A21-873-040 C-IC,AN8399SA a b c d
MAIN S IC 0701 87-A22-163-040 C-IC,NJM2772V a b c d
MAIN S IC 0821 87-A20-904-080 C-IC,TK11823MTL a b c d
MAIN S IC 0851 87-A22-238-040 C-IC,LV23100V a b c d
MAIN O J 0101 87-A61-340-010 JACK,DC a b c d
MAIN O J 0701 87-A61-339-010 JACK,3.5 GRN ST W/O SW a b c d
MAIN O JR 0851 87-A50-597-080 C-COIL,S 10UH LQG21F100N a b c d
MAIN O L 0201 87-A50-759-080 C-COIL,330UH-LB2518 a b c d
MAIN O L 0202 87-A50-769-010 COIL,100UH-SBCP 47HYB02 a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN O L 0203 87-A50-759-080 C-COIL,330UH-LB2518 a b c d
MAIN O L 0204 87-A50-758-080 C-COIL,100UH-LB2518 a b c d
MAIN O L 0205 87-A50-758-080 C-COIL,100UH-LB2518 a b c d
MAIN O L 0401 87-A50-758-080 C-COIL,100UH-LB2518 a b c d
MAIN O L 0402 87-A50-758-080 C-COIL,100UH-LB2518 a b c d
MAIN O L 0501 87-A50-759-080 C-COIL,330UH-LB2518 a b c d
MAIN O L 0502 87-A50-759-080 C-COIL,330UH-LB2518 a b c d
MAIN O L 0801 8C-HC5-625-010 ANT,BAR-ANTENNA CHC-5 a b c d
MAIN O L 0802 87-003-247-080 C-COIL, 100UH J LQH3 a b c d
MAIN O L 0821 87-A50-037-080 C-COIL,D-D 5CDLU 796KHZ a b c d

MAIN O L 0851 8C-HC5-630-010 COIL,FM RF-EX a b c d
MAIN O L 0852 8C-HC5-631-010 COIL,FM OSC-EX a b c d
MAIN O L 0853 87-005-788-080 C-IFT AM 5M 5CLD a b c d
MAIN S Q 0101 87-A30-681-040 C-TR,2SC4154 a b c d
MAIN S Q 0104 87-A30-679-040 C-TR,2SC5810 a b c d
MAIN S Q 0201 87-A30-678-040 C-TR,2SA2070 a b c d
MAIN S Q 0202 87-A30-682-040 C-TR,2SA2018 a b c d
MAIN S Q 0203 87-A30-385-040 C-TR,DTA114YUA a b c d
MAIN S Q 0204 87-A30-681-040 C-TR,2SC4154 a b c d
MAIN S Q 0205 87-A30-681-040 C-TR,2SC4154 a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN S Q 0207 87-A30-682-040 C-TR,2SA2018 a b c d
MAIN S Q 0208 87-A30-144-040 C-TR,2SC4081 a b c d
MAIN S Q 0209 87-A30-144-040 C-TR,2SC4081 a b c d
MAIN S Q 0210 87-A30-144-040 C-TR,2SC4081 a b c d
MAIN S Q 0301 87-026-263-080 C-TR,RN1410 a b c d
MAIN S Q 0302 87-A30-682-040 C-TR,2SA2018 a b c d
MAIN S Q 0303 87-A30-682-040 C-TR,2SA2018 a b c d
MAIN S Q 0304 87-026-263-080 C-TR,RN1410 a b c d
MAIN S Q 0306 87-A30-405-040 C-TR,DTC114TUA a b c d
MAIN S Q 0310 87-A30-405-040 C-TR,DTC114TUA a b c d

MAIN S Q 0501 87-A30-405-040 C-TR,DTC114TUA a b c d
MAIN S Q 0504 87-A30-386-040 C-TR,DTA114TUA a b c d
MAIN S Q 0510 87-A30-682-040 C-TR,2SA2018 a b c d
MAIN S Q 0702 87-A30-328-040 C-TR,IMX9 a b c d
MAIN S Q 0704 87-A30-405-040 C-TR,DTC114TUA a b c d
MAIN S Q 0705 87-A30-405-040 C-TR,DTC114TUA a b c d
MAIN S Q 0801 89-503-602-080 C-FET,2SK360E a b c d
MAIN S Q 0811 87-A30-682-040 C-TR,2SA2018 a b c d
MAIN S Q 0851 89-341-165-080 C-TR,2SC4116GR a b c d
MAIN S Q 0852 89-341-165-080 C-TR,2SC4116GR a b c d

– 6 –

! = ! SAFTY PARTS
C = Components marked

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0101 88-108-182-080 C-RES,U 1.8K-1/16W J a b c d
MAIN X R 0102 88-108-473-080 C-RES,U 47K-1/16W J a b c d
MAIN X R 0103 88-128-689-080 C-RES, 6.8-1/8W J a b c d
MAIN X R 0105 88-138-399-080 C-RES, 3.9-1/4W J a b c d
MAIN X R 0106 88-108-561-080 C-RES,U 560-1/16W J a b c d
MAIN X R 0202 88-108-100-080 C-RES,U 10-1/16W J a b c d
MAIN X R 0203 88-108-220-080 C-RES,U 22-1/16W J a b c d
MAIN X R 0206 88-108-103-080 C-RES,U 10K-1/16W J a b c d
MAIN X R 0207 88-108-473-080 C-RES,U 47K-1/16W J a b c d
MAIN X R 0208 88-108-473-080 C-RES,U 47K-1/16W J a b c d

MAIN X R 0209 88-108-473-080 C-RES,U 47K-1/16W J a b c d
MAIN X R 0210 88-108-103-080 C-RES,U 10K-1/16W J a b c d
MAIN X R 0211 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0212 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0214 88-108-470-080 C-RES,U 47-1/16W J a b c d
MAIN X R 0215 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0216 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0217 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0218 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0219 88-108-104-080 C-RES,U 100K-1/16W J a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0220 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0221 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0222 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0223 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0301 88-108-274-080 C-RES,U 270K-1/16W J a b c d
MAIN X R 0302 88-108-473-080 C-RES,U 47K-1/16W J a b c d
MAIN X R 0303 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0304 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0305 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0306 88-108-103-080 C-RES,U 10K-1/16W J a b c d

MAIN X R 0307 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0308 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0309 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0313 88-108-101-080 C-RES,U 100-1/16W J a b c d
MAIN X R 0314 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0315 88-108-274-080 C-RES,U 270K-1/16W J a b c d
MAIN X R 0316 88-108-103-080 C-RES,U 10K-1/16W J a b c d
MAIN X R 0317 88-108-273-080 C-RES,U 27K-1/16W J a b c d
MAIN X R 0319 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0320 88-108-103-080 C-RES,U 10K-1/16W J a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0321 88-108-822-080 C-RES,U 8.2K-1/16W J a b c d
MAIN X R 0322 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0324 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0325 88-108-155-080 C-RES,U 1.5M-1/16W J a b c d
MAIN X R 0326 88-108-155-080 C-RES,U 1.5M-1/16W J a b c d
MAIN X R 0327 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0328 88-108-474-080 C-RES,U 470K-1/16W J a b c d
MAIN X R 0329 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0330 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0331 88-108-104-080 C-RES,U 100K-1/16W J a b c d

MAIN X R 0332 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0333 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0334 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0335 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0336 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0338 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0370 88-108-274-080 C-RES,U 270K-1/16W J a b c d
MAIN X R 0371 88-108-124-080 C-RES,U 120K-1/16W J a b c d
MAIN X R 0372 88-108-124-080 C-RES,U 120K-1/16W J a b c d
MAIN X R 0373 88-108-104-080 C-RES,U 100K-1/16W J a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0401 88-108-563-080 C-RES,U 56K-1/16W J a b c d
MAIN X R 0402 88-108-683-080 C-RES,U 68K-1/16W J a b c d
MAIN X R 0403 88-108-222-080 C-RES,U 2.2K-1/16W J a b c d
MAIN X R 0404 88-108-151-080 C-RES,U 150-1/16W J a b c d
MAIN X R 0405 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0406 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0412 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0413 88-108-470-080 C-RES,U 47-1/16W J a b c d
MAIN X R 0415 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0416 88-108-000-080 C-JUMPER,U a b c d

MAIN X R 0451 88-108-100-080 C-RES,U 10-1/16W J a b c d
MAIN X R 0501 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0502 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0503 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0504 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0505 88-108-822-080 C-RES,U 8.2K-1/16W J a b c d
MAIN X R 0506 88-108-822-080 C-RES,U 8.2K-1/16W J a b c d
MAIN X R 0507 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0508 88-108-223-080 C-RES,U 22K-1/16W J a b c d
MAIN X R 0509 88-108-333-080 C-RES,U 33K-1/16W J a b c d

– 7 –

! = ! SAFTY PARTS
C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0510 88-108-124-080 C-RES,U 120K-1/16W J a b c d
MAIN X R 0511 88-108-223-080 C-RES,U 22K-1/16W J a b c d
MAIN X R 0512 88-108-822-080 C-RES,U 8.2K-1/16W J a b c d
MAIN X R 0513 88-108-222-080 C-RES,U 2.2K-1/16W J a b c d
MAIN X R 0514 88-108-182-080 C-RES,U 1.8K-1/16W J a b c d
MAIN X R 0515 88-108-100-080 C-RES,U 10-1/16W J a b c d
MAIN X R 0516 88-108-103-080 C-RES,U 10K-1/16W J a b c d
MAIN X R 0523 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0701 88-108-689-080 C-RES,U 6.8-1/16W J a b c d
MAIN X R 0702 88-108-103-080 C-RES,U 10K-1/16W J a b c d

MAIN X R 0703 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0704 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0705 88-108-273-080 C-RES,U 27K-1/16W J a b c d
MAIN X R 0706 88-108-273-080 C-RES,U 27K-1/16W J a b c d
MAIN X R 0707 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0708 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0709 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0710 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0711 88-108-103-080 C-RES,U 10K-1/16W J a b c d
MAIN X R 0712 88-108-103-080 C-RES,U 10K-1/16W J a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0713 88-108-000-080 C-JUMPER,U a b c .
MAIN X R 0713 88-108-189-080 C-RES,U 1.8-1/16W VVJ . . . d
MAIN X R 0714 88-108-000-080 C-JUMPER,U a b c .
MAIN X R 0714 88-108-189-080 C-RES,U 1.8-1/16W VVJ . . . d
MAIN X R 0718 88-108-682-080 C-RES,U 6.8K-1/16W J a b c d
MAIN X R 0719 88-108-682-080 C-RES,U 6.8K-1/16W J a b c d
MAIN X R 0722 88-108-682-080 C-RES,U 6.8K-1/16W J a b c d
MAIN X R 0723 88-108-682-080 C-RES,U 6.8K-1/16W J a b c d
MAIN X R 0724 88-108-473-080 C-RES,U 47K-1/16W J a b c d
MAIN X R 0725 88-108-473-080 C-RES,U 47K-1/16W J a b c d

MAIN X R 0726 88-108-224-080 C-RES,U 220K-1/16W J a b c d
MAIN X R 0727 88-108-224-080 C-RES,U 220K-1/16W J a b c d
MAIN X R 0728 88-108-682-080 C-RES,U 6.8K-1/16W J a b c d
MAIN X R 0729 88-108-682-080 C-RES,U 6.8K-1/16W J a b c d
MAIN X R 0730 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0790 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0791 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0801 88-108-470-080 C-RES,U 47-1/16W J a b c d
MAIN X R 0802 88-108-221-080 C-RES,U 220-1/16W J a b c d
MAIN X R 0804 88-108-223-080 C-RES,U 22K-1/16W J a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0811 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0812 88-108-472-080 C-RES,U 4.7K-1/16W J a b c d
MAIN X R 0821 88-108-220-080 C-RES,U 22-1/16W J a b c d
MAIN X R 0851 88-108-100-080 C-RES,U 10-1/16W J a b c d
MAIN X R 0852 88-108-100-080 C-RES,U 10-1/16W J a b c d
MAIN X R 0853 88-108-473-080 C-RES,U 47K-1/16W J a b c d
MAIN X R 0854 88-108-472-080 C-RES,U 4.7K-1/16W J a b c d
MAIN X R 0855 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0856 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0857 88-108-332-080 C-RES,U 3.3K-1/16W J a b c d

MAIN X R 0858 88-108-221-080 C-RES,U 220-1/16W J a b c d
MAIN X R 0859 88-108-221-080 C-RES,U 220-1/16W J a b c d
MAIN X R 0860 88-108-223-080 C-RES,U 22K-1/16W J a b c d
MAIN X R 0861 88-108-681-080 C-RES,U 680-1/16W J a b c d
MAIN X R 0862 88-108-472-080 C-RES,U 4.7K-1/16W J a b c d
MAIN X R 0863 88-108-473-080 C-RES,U 47K-1/16W J a b c d
MAIN X R 0864 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0865 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0866 88-108-102-080 C-RES,U 1K-1/16W J a b c d
MAIN X R 0867 88-108-102-080 C-RES,U 1K-1/16W J a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
MAIN X R 0868 88-108-221-080 C-RES,U 220-1/16W J a b c d
MAIN X R 0869 88-108-103-080 C-RES,U 10K-1/16W J a b c d
MAIN X R 0870 88-108-103-080 C-RES,U 10K-1/16W J a b c d
MAIN X R 0872 88-108-683-080 C-RES,U 68K-1/16W J a b c d
MAIN X R 0876 88-108-000-080 C-JUMPER,U a b c d
MAIN X R 0891 88-108-182-080 C-RES,U 1.8K-1/16W J a b c d
MAIN X R 0892 88-108-182-080 C-RES,U 1.8K-1/16W J a b c d
MAIN X R 0893 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0894 88-108-104-080 C-RES,U 100K-1/16W J a b c d
MAIN X R 0895 88-108-472-080 C-RES,U 4.7K-1/16W J a b c d

MAIN X R 0896 88-108-472-080 C-RES,U 4.7K-1/16W J a b c d
MAIN O S 0301 87-A92-085-010 SW,MICRO ESE11SV1 a b c d
MAIN O S 0302 87-A91-457-380 C-SW,SL 1-1-3 SS-350-A13B-C-T a b c d
MAIN O TC 0801 87-011-249-080 C-TRIMMER,CER 30P 4.5X3.2 ECRK a b c d
MAIN O VR 0701 87-A92-340-010 VR,RTRY 30KX2 H XV0107 a b c d
MAIN O X 0301 87-A70-377-010 VIB,4.19MHZ CSA4.19MG200 a b c d
MAIN O X 0401 87-A70-202-080 C-VIB,CER 16.93MHZ CSACV-MXJ04 a b c d
MAIN O X 0851 87-A70-082-110 VIB,XTAL 75KHZ a b c d

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

o r

d u p a t

– 8 –

CHIP RESISTOR PART CODE

Chip Resistor Part Coding

88

A

Resistor Code

Chip resistor

Wattage Type Tolerance
1/16W 1005 5% CJ

1/16W
1/10W

1/8W

TRANSISTOR ILLUSTRATION

1608
2125

3216

C

5%
5%

5%

Symbol

CJ
CJ

CJ

S

Figure

Value of resistor

Form

L

Dimensions (mm)

t

W

C1

LW t

1.0 0.5 0.35 104

1.6 0.8 0.45
2 1.25 0.45

3.2

1.6

B2

E2

Resistor Code

0.55

: A
: A

108
118

128

B

E

2SA2018
2SC4081
2SC4116GR
2SC4154
DTA114TUA
DTA114YUA
DTC114TUA
RN1410

D

G

2SK360E

E1

B1

C2

IMX9

B C E

2SA2070
2SC5810

d u p a

t o r

– 9 –

WIRING – 1 (MAIN) <1 / 2>

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

o r

Q

– 10 –

R

S

d u p a t

T

U

WIRING – 1 (MAIN) <2 / 2>

1 2 3 4 5 6 7 8 9 1011121314151617181920212223242526272829303132

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

o r

Q

R

S

d u p a t

T

U

– 11 –

SCHEMATIC DIAGRAM – 1 (MAIN : 1 / 2)

– 12 –

o r

d u p a t

SCHEMATIC DIAGRAM – 2 (MAIN : 2 / 2 <TUNER SECTION>)

– 13 –

o r

d u p a t

WIRING – 2 (FLEX)

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

A

SW1
DSL

FLEX C.B

5

10 15

TO LCD1

(DISPLAY)

SW1

1

R1

21

1

R7

TO MAIN C.B

CN301

28

SW7

SW7

SKIP/

SEARCH

B

C

D

E

F

G

H

I

J

K

SW2

PRESET

CALL UP

SW3

PRESET

CALL DOWN

SW4

d u p a

BAND

SW2

SW3

SW4

R2

R3

R4

R5

SW9

MODE

SW9

SW10

ENTER/DISPLAY

SW10

t o r

R8

R9

SW8

R10

SW6

R6

SW5

SW5

PLAY/PAUSE

SW8

SKIP/

SEARCH

SW6

STOP/

OFF/CHARGE

L

M

N

O

P

Q

R

S

T

– 14 –

U

SCHEMATIC DIAGRAM – 3 (FLEX)

d u p a

t o r

– 15 –

LCD DIAGRAM

121

12

EASS

ST RNDM

48

RESUME1

PIN NO. COM1 COM2 COM3 COM4

DSL

PRGM

PRESET

FM AM

TV WEATHER

MHz kHz

1 – – – COM1 – – – – – – – – –
2 – – – – – – COM2 – – – – – –
3 – – – – – – – – – COM3 – – –
4 – – – – – – – – – – – – COM4
5 SEG1 ALM SIN ST RDM
6 SEG2 1D 1E 1F REP
7 SEG3 1C 1G 1B 1A
8 SEG4 2D 2E 2F RSM

9 SEG5 2C 2G 2B 2A
10 SEG6 1 12 EAS 48
11 SEG7 DSL MID FUL EMP
12 SEG8 TV WTH PRE PGM
13 SEG9 BAR 3 FM AM
14 SEG10 7D 7E 7F kHz
15 SEG11 7C 7G 7B 7A
16 SEG12 6D 6E 6F MHz
17 SEF13 6C 6G 6B 6A
18 SEG14 5D 5E 5F COL
19 SEG15 5C 5G 5B 5A
20 SEG16 4D 4E 4F DOT
21 SEG17 4C 4G 4B 4A

121

12 EAS 48 EMP FUL MID

ST

RDM

SIN

ALM

FM AM TV

BAR

3

REP

A

F

B

G

E

C

12

D

45

1

RSM

DSL

PGM

PRE

WTH

COL

67

DOT

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MHz kHz

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IC BLOCK DIAGRAM

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IC DESCRIPTION

IC, MN101C54AAA

Pin No. Pin Name I/O Description

1 VLC1 – LCD drive voltage setting terminal.
2 VLC2 – LCD drive voltage setting terminal.
3 VLC3 – LCD drive voltage setting terminal.
4 C1 – Connected to capacitor.
5 C2 – Connected to capacitor.
6 CHRG1 O Main charge output.
7 CHRG2 O Sub charge output.
8 CLK-SHT O Clock shift output. "H": Shift.

9 VSS – Connected to GND.
10 OSC2 O Micon main clock oscillator output. (4.19MHz)
11 OSC1 O Micon main clock oscillator output. (4.19MHz)
12 MMOD – Processor mode unused. (Connected to GND)
13 XI I Sub clock oscillator. (Connected to GND)
14 XO O Sub clock oscillator. (Not used)
15 VDD – Connected to VDD.
16 RST I Micon reset input.
17 VREF+ – A/D convertor VDD (1.8V).
18 K-P/S I "PLAY", "STOP" and "BAND" key input.
19 K-FUNC1 I "FUNCTION" key input.
20 K-FUNC2 I "FUNCTION" key input.
21 K-RMC I Wire remote control input.
22 VDIN I Battery voltage monitoring input.
23 SWR/H I Resume/Hold switch input.
24 CHRGIN I Charge voltage monitoring input.
25 DEST I Tuner band setting.
26 VREF– – Connected to GND.
27 VDD – Connected to VDD.
28 MDATA O DSP MDATA output.

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29 STAT I DSP STAT input.
30 MCLK O DSP MCLK output.
31 DO O PLL and EEPROM data output.
32 DI I PLL and EEPROM data input.
33 CLK O PLL and EEPROM clock output.
34 BEEP O Buzzer output for headphone.
35 NRST O DSP reset output.
36 MLD O DSP MLD output.
37 DSL-ON O Headphone DSL control output. "L": DSL on.
38 BOOST O Current control. "L": STOP mode.
39 PLL CE O PLL chip enable output.
40 EEP CE O EEPROM chip enable output.
41 BLKCK I DSP BLKCK input.

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Pin No. Pin Name I/O Description

42 WAKEUP I Wake up key input.
43 SWIL I Limited switch input.
44 VDD – Connected to VDD.
45 CDRW O CD-RW play gain level selection output. Off at "L".
46 PU-ON O H/A power down output. "H": Power down.
47 EASS–ON O EASS gain up selection output. "L": EASS on.
48 MUTE O Audio mute output.
49 STANDBY O Headphone standby output. Standby at "L".
50 P-OFF O Voltage mode select.
51 P-ON O Power IC power on output. Power on at "L".
52 SWCL I Cover open/close detection switch input.
53 VE-MODE I Continuously 2 times spindle speed mode. (Connected to GND)
54 SP-2/3 I Enter test mode at "L".
55 DRAM I Not used.
56 ACIN I AC adaptor detection.
57 AUTO I Not used.
58 SPCON O Spindle PWM control output. (Connected to GND)
59 NC O Not connected.
60 SEG17 O LCD segment output.
61 SEG16 O LCD segment output.
62 SEG15 O LCD segment output.
63 SEG14 O LCD segment output.
64 SEG13 O LCD segment output.
65 SEG12 O LCD segment output.
66 SEG11 O LCD segment output.
67 SEG10 O LCD segment output.
68 SEG09 O LCD segment output.
69 SEG08 O LCD segment output.

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70 SEG07 O LCD segment output.
71 SEG06 O LCD segment output.
72 SEG05 O LCD segment output.
73 SEG04 O LCD segment output.
74 SEG03 O LCD segment output.
75 SEG02 O LCD segment output.
76 SEG01 O LCD segment output.
77 COM04 O LCD common output.
78 COM03 O LCD common output.
79 COM02 O LCD common output.
80 COM01 O LCD common output.

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IC, MN662786SBM

Pin No. Pin Name I/O Description

1 DRVDD I DRAM interface power (terminal No. 2 to 19).

2 D0 I/O DRAM data input/output signal 0.

3 D1 I/O DRAM data input/output signal 1.

4 NWE O DRAM write enable signal.

5 NRAS O DRAM RAS control signal.

6 D2 I/O DRAM data input/output signal 2.

7 D3 I/O DRAM data input/output signal 3.

8 NCAS0 O DRAM CAS control signal 0.

9 A10 O DRAM address signal 10.
10 A8 O DRAM address signal 8.
11 A7 O DRAM address signal 7.
12 A6 O DRAM address signal 6.
13 A5 O DRAM address signal 5.
14 A4 O DRAM address signal 4.
15 A9 O DRAM address signal 9.
16 A0 O DRAM address signal 0.
17 A1 O DRAM address signal 1.
18 A2 O DRAM address signal 2.
19 A3 O DRAM address signal 3.
20 DVSS2 I Digital circuit GND.
21 DVDD2 I Digital circuit power.
22 SPOUT O Spindle motor driver signal output.
23 TRVP O Traverse drive output (– polar output).
24 TRVM O Traverse drive output (+ polar output).
25 TRP O Tracking drive output (– polar output).
26 TRM O Tracking drive output (+ polar output).
27 FOP O Focus drive output (– polar output).
28 FOM O Focus drive output (+ polar output).

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29 IOVDD1 I I/O power supply.
30 TBAL O Tracking balance adjustment output.
31 FBAL O Focus balance adjustment output.
32 FE I Focus error signal input (analogue input).
33 TE I Tracking error signal input (analogue input).
34 RFENV I RF envelope signal input (analogue input).
35 OFT I Off track signal input. "H": Off track.
36 NRFDET I RF detection signal input. "L": Detected.
37 BDO I Drop out signal input. "H": Drop out.
38 LDON O Laser on signal output. "H": On. (Not used)
39 ARF I RF signal input.
40 IREF I Reference current input terminal.
41 ADPVCC I A/D reference voltage input (analogue input).

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Pin No. Pin Name I/O Description

42 DSLF O DSL loop filter terminal.
43 DRF O Bias terminal for DSL.
44 PLLF O PLL loop filter terminal.
45 VCOF O Jitter free VCO loop filter terminal.
46 AVDD2 I Analogue circuit power (for DSL, PLL, VCOF, AD, DA).
47 AVSS2 I Analogue circuit GND (for DSL, PLL, VCOF, AD, DA).
48 OUTL O Lch audio output.
49 AVSS1 I Analogue circuit GND.
50 OUTR O Rch audio output.
51 AVDD1 I Analogue circuit power.
52 FSEL I Noise filter on/off switch input. "L": On, "H": Off. (Connected to VDD)
53 TMOD1 I Terminal mode switch input terminal 1. Normally set to "L". (Connected to GND)
54 TMOD2 I Terminal mode switch input terminal 2. Normally set to "L". (Connected to GND)
55 FLAG O Flag signal output. (Not used)
56 IPFLAG O Interpolation flag signal output. "H": Interpolation. (Not used)
57 EXT0 I/O Extension input/output port 0. (Not used)
58 EXT1 I/O Extension input/output port 1. (Not used)
59 IOVDD2 I I/O power supply.
60 TX O Digital audio interface output signal. (Not used)
61 MCLK I Microcomputer command clock signal input. (Data is latched at loading edge)
62 MDATA I Microcomputer command data signal input.
63 MLD I Microcomputer command load signal input. "L": Load.
64 BLKCK O Sub-code block clock signal fBLKCK = 75Hz. (In normal PLAY mode)
65 PWMSEL I/O PWM output mode select input. (Connected to GND)
66 SMCK O 4.236MHz/8.4672MHz clock signal output. (Not used)
67 DMUTE I Muting input. "H": Mute. (Connected to GND)
68 STAT O Status signal output.
69 NRST I Reset input. "L": Reset.

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70 SPPOL O Spindle motor drive signal output. (Polar output)
71 PMCK O 88.2kHz clock signal output. (Not used)
72 NCLDCK O Sub-code frame clock signal output = 7.35kHz ( In normal PLAY mode ) (Not used)
73 SUBC O Sub-code serial output. (Not used)
74 SBCK O Clock input for sub-code serial output. (Connected to GND)
75 NTEST I Test terminal, normally set to “H”. (Connected to VDD)
76 X2 O Quartz oscillator circuit output terminal f = 16.93MHz.
77 X1 I Quartz oscillator circuit input terminal f = 16.93MHz.
78 VDSS1 I Digital circuit GND.
79 DVDD1 I Digital circuit power.
80 EXT2 I/O Extension input/output port 2. (Not Used)

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MECHANICAL EXPLODED VIEW

1

2

13

3

5

6

7

A

9

10

11

12

13

4

8

A

A

13

19

18

16

21

15

C

20

14

B

17

A

22

24

23

C

23

– 23 –

MECHANICAL PARTS LIST

! = ! SAFTY PARTS
C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AEZ1SC AHRJ1SC AHKJ1SC
PLATE O MC1001 8C-HC5-006-010 WINDOW,DISPLAY a b c d
APPEARANCE O MC1002 8C-HC5-031-010 LID,CD R231 (S) a . . .
APPEARANCE O MC1002 8C-HC5-034-010 LID,CD R234 (S) . b c d
KEY O MC1003 8C-HC5-620-010 LCD,CHC-5 REFLEX a b c d
OTHERS O MC1004 8C-HC5-206-010 JOINT,LCD CHC-5 a b c d
KNOB O MC1005 8C-HC5-008-010 KEY,PLAY a b c d
PWB O MC1006 8C-HC5-601-010 PWB,FLEX CHC-5 a b c d
PLATE O MC1007 8C-HC5-007-010 HLDR,LID CD a b c d
OTHERS X MC1008 87-601-052-210 WIRE,P1-5-2 a b c d
APPEARANCE O MC1009 8C-HC5-002-010 CABI,CENTER a b c d

OTHERS O MC1010 8C-HC5-011-010 PLATE,SW a b c d
KNOB O MC1011 8C-HC5-009-010 KNOB,SL OPEN a b c d
OTHERS O MC1012 8C-HC5-205-010 SPR-T,KNOB SL OPEN a b c d
OTHERS O MC1013 8C-HC7-215-010 DMPR,MECHA 40 a b c d
DISC TRANSPORT O MC1014 M8-CZK-190-070 KSM-780ATA a b c d
OTHERS O MC1015 8C-HC5-201-010 BAT-CONTACT,(+) a b c d
OTHERS O MC1016 8C-HC5-202-010 BAT-CONTACT,(-) a b c d
PWB X MC1017 8C-HC5-600-010 PWB,MAIN CHC-5 a b c d
OTHERS X MC1018 8C-HC5-208-010 HLDR,ANT a b c d
TUNER(COM) O MC1019 8C-HC5-625-010 ANT,BAR-ANTENNA CHC-5 a b c d

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AEZ1SC AHRJ1SC AHKJ1SC
OTHERS O MC1020 8C-HC5-204-010 SPR-T,OPEN a b c d
OTHERS O MC1021 8C-HC5-203-010 BAT-CONTACT,(+)(-) a b c d
APPEARANCE O MC1022 8C-HC5-005-010 CABI ASSY,BOTTOM a b c d
APPEARANCE X MC1022a 8C-HC5-003-010 CABI,BOTTOM a b c d
APPEARANCE X MC1022b 8C-HC5-004-010 LID,BAT a b c d
APPEARANCE O MC1023 8Z-HC4-027-010 FOOT,DIA10 a b c d
KNOB O MC1024 8C-HC5-010-010 KNOB,SL HOLD a b c d
SCREW O MC1A 87-067-732-010 VT2+1.4-3 CR BLK HL a b c d
SCREW O MC1B 87-067-868-010 V+1.7-4 BLK HL a b c d
SCREW O MC1C 87-B10-026-010 VT2+1.7-8 CR HL a b c d

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

– 24 –

COLOR NAME TABLE

Basic color symbol Color Basic color symbol Color Basic color symbol Color

B Black C Cream D Orange
G Green H Gray L Blue

LT Transparent Blue N Gold P Pink

R Red S Silver ST Titan Silver

T Brown V Violet W White

WT Transparent White Y Yellow YT Transparent Yellow

LM Metallic Blue LL Light Blue GT Transparent Green
LD Dark Blue DT Transparent Orange GM Metallic Green

YM Metallic Yellow DM Metallic Orange PT Transparent Pink

LA Aqua Blue GL Light Green HT Transparent Gray

HM Metallic Gray NH Champagne Gold M Wood Pattern

– 25 –

ACCESSORIES PARTS LIST

! = ! SAFTY PARTS
C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
PRINTED DU O 1 8C-HC5-902-010 IB,AHR(ECA)C R231 a . . .
PRINTED DU O 1 8C-HC5-912-010 IB,AHR(ECA)C R234 . b c .
PRINTED DU O 1 8C-HC5-905-010 IB,AEZ(EGF)C R234 . . . d
PRINTED DU O 1 8C-HC5-907-010 IB,AEZ(PHC)C R234 . . . d
PRINTED DU O 1 8C-HC5-906-010 IB,AEZ(SID)C R234 . . . d
ACCESSORY O 2 87-B30-541-010 HEADPHONE,HP-M070 a . . .
ACCESSORY O 2 87-B30-540-010 HEADPHONE,HP-M069 . b c d
ACCESSORY ! O 3 87-B30-285-210 AC ADAPTOR,AC-D603HRNC a b . .
ACCESSORY ! O 3 87-B30-284-010 AC ADAPTOR,AC-D603KNC . . c .
ACCESSORY ! O 3 87-B30-283-110 AC ADAPTOR,AC-D603ENC . . . d

ACCESSORY ! O 4 87-A91-017-010 PLUG,CONVERSION JT-0476 a b . .
ACCESSORY O 5 8C-HC5-101-010 RC UNIT,RC-R234 . b c d

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

– 26 –

OTHER PARTS LIST

! = ! SAFTY PARTS
C = Components marked

UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
LBL,POP X 8C-HC5-972-010 LBL,POP 230YU a . . .
LBL,POP X 8C-HC5-970-010 LBL,POP 234AHR . b c d
OTHERS X 8C-HC5-207-010 SH,ADH WINDOW a b c d
OTHERS X 8C-HC5-213-010 SH,FPC 2 a b c d
OTHERS X 8C-HC5-209-010 SH,LCD a b c d
OTHERS X 8C-HC5-212-010 SH,SHILD FPC a b c d
PACKING X 86-HC5-872-010 BAG,PV 0.04-200-230 PL a b c d
PACKING X 8C-HC5-871-010 CTN,OUTER 231 AHRJ1SC a . . .
PACKING X 8C-HC5-865-010 CTN,PRINTED 231 AHRJ1SC a . . .
PACKING X 8C-HC5-860-010 CTN,PRINTED 234 AHRJ1SC . b c .

PACKING X 8C-HC5-866-010 CTN,OUTER 234 AHRJ1SC . b . .
PACKING X 8C-HC5-873-010 CTN,OUTER 234 AHKJ1SC . . c .
PACKING X 87-B40-312-010 LBL,M AHKJ1 . . c .
PACKING X 8C-HC5-869-010 CTN,OUTER 234 AEZ1SC . . . d
PACKING X 8C-HC5-863-010 CTN,PRINTED 234 AEZ1SC . . . d
PLATE X 87-B40-281-010 LBL,BAR-CODE A 35X8 a b c d
PLATE X 87-B40-154-010 LBL,BAR-CODE CU a b c d
PLATE X 8C-HC5-022-010 LBL,SPEC AHRJC R231 a . . .
PLATE X 8C-HC5-016-010 LBL,SPEC AHRJC R234 . b . .
PLATE X 8C-HC5-017-010 LBL,SPEC AKC R234 . . c .

XP-R231 XP-R234 XP-R234 XP-R234
AHRJ1SC AHRJ1SC AHKJ1SC AEZ1SC
PLATE X 8C-HC5-018-010 LBL,SPEC AEZC R234 . . . d
PRINTED DU X 87-B50-078-010 LIST,FACILITY(S)-0007 a b c d
PRINTED DU X 87-056-168-010 SH,CAUTION INF-WARR(EC) . . . d

All components used on this model at the production line are shown in this service manual.
However, please note that not all components will be available as spare parts for after-sales service.
Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.
Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers.

– 27 –

9420025 921338

2-11, IKENOHATA 1-CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:[phone]