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UX-A52R

Block diagram

6

FMA-006

IFOUT OSCOUT MUTE/IFOUT FM/AM SQIN ST/MONO AMOSC FM OUT STEREO,CK CE,DATA LOUT ROUT

FMB-031-1 IC1 FMDET AM DET
TUL,TUR

LED MATRIX
LEDCTL RED BLUE GREEN

IC901 REMOCON
REM SDA SCL,RS RESET

J1003

LCD

T1002

L1006

AC INPUT

TU1 FM RF FM/AM ANT
J1

CN809

CN701

CN1

L1 AM RF & OSC

IC2 PLL
AMRF AFC AMOSC

CN918
TUDATA TUST TUCK MPX

RY801 CN808
CN907
MOTOR+ MOTOR-

IC3 RDS

CN908
FW907

CN906

RDDA RDCL

SW201 SW202

5
CN31

DOWN MIDDLE UP

M

CN805

T1001

LVA10166-A1 R/P HEAD
L+,LR+,R-

CN909 IC31 HEAD SWITCH MOTOR DRIVE SOLENOLIDE DRIVE
SQL,KEY1,PLAY,PHOTO

IC32 PB/REC AMP

CN803

MS,PBL,PBR RECL,RECR STTA SDATA SCK

RESET,SDA,RS DOWN,UP,MIDDLE PBL,PBR PHOTO

CN709

VOLTAGE CONTROL

CN744 CN743

CN34

M

IC33 PORT EXTENSION

FW31

CN33

4

REEL PULSE SWITCH

PLAY,KEY1 SAFETY1 SCK,SDATA STTA OUTL,OUTR

IC701 SYSTEM MICOM

VOLDA,VOLCE

IC702 FUCTION/ VOL/AHB

US6V

IC802 REG.

CN32

CN1

SW5V
W1001 CN804 J1002
AHB,FCD MDPOUT SMUTE POUT SAFETY4 LOUT ROUT

M SWITCH

IC704 MOTOR DRIVER
LOAD UNLOAD

RMT0,RMT1 LOCK RMSPEED

CN706

3
A+C B+D E,F LD,MD T+,TF+,F-

IC703 MOTOR DRIVER

MOTOR+ MOTOR-

LIN RIN

CN711 CN712

CN801 CN802

CD PICKUP

IC601 RF & SERVO AMP
OFT BDO ARF RFENV TBAL FBAL FE,TE GCTL RFDET

IC251 UNIT MICOM
/RESET STAT /DMUTE SUBQ SQCK BLKCK MLD MDATA MCLK FLAG IREFx4

TXDO,RXDO IC,/RESET

J1001

2

OPEN SWITCH REST SWITCH FEED MOTOR SPINDLE MOTOR

/OPEN

/REST FM+,FMSM+,SM-

IC801 FCS/SP/FE/TR BTL DRIVER
TRD FOD ECM ECS TVD

MCS KCMND MSTAT MRDY KCLK CDCOPY CDTNO CDEMP CDINDEX TX OUTL OUTR SRDATA LRCK BCLK

IC801 POWER AMP
INL INR

CN001

CN601

CN671
CDTXD CDRXD CDRST TX BUZZER,PIN FKEY1,FKEY2
to FLASH MICON

OUTL,OUTR SAFETY2 SAFETY3

+OUTL -OUTL +OUTR -OUTR

/RESET

CN807

FANCTL

M

CN651 CN606

CN704

IC651 DSP
DQSY,SBCK SUBC

KEY1 KEY2 PIN BUZZER

S2601~S2617 KEY MATRIX BZ201

CN705

CN905

CN605

1

J2003
DIGITAL OUT

A

B

C

D

E

F

G

H

I
2-1

3

1

2

4

5

6

Main & control circuit

Standard schematic diagrams

A
W708 QJQ009-032601 CN704
LOAD MTR+ MTRTX MCS

QGF1016C1-19

CN706
UNLOAD

QGA201C1-05

KLCK

CDTXD

CDRXD

MRDY

CDRST%

L2003 QQL244K-100Z 22/16

Q2708 C2753 1/50 1K Q2707 KTC3875/GR/-X C2752 1/50 1K Q2706 R2856 9.1 C2751 1/50 2.2K R2860 CDAGND 10 US6V R2852 2.2K D2860 MTZJ6.8B-T2
LB1641 IC704 K3003

KTC3875/GR/-X

R2745 2.2K

RMT0 LOCK

RMT1

R2718

R2744 2.2K

R2138

10K

K3002 R2743 2.2K

QGB2510J1-12 NQR0428-002X CN712

QQR0621-001Z C2855 0.01 R2717 KTC3875/GR/-X R2740 R2742 2.2K

B
C2604 470P

R2716 1K R2741

10 SAFETY2 R2861 2.2k
R2713 R2714 R2715

MTZJ7.5C-T2 D2852 R2862 2.2k
1K 1K 1K 0.01 IC703 LB1641

SAFETY3 R2853 2.2k
C2861

R2854 R2867 10 R2855 10
10K 10K

2.2k
C2852 0.01

CD+B C2605 1000P OUTR
TLMTR2863 R2864

C2853 AGND
R2866 10K 10K RCOL RED GREEN R2865

TLMT+

BCOL

BLUE

GCOL

OUTL 100/16

MOTORR2093 R2092 47K 47K

MOTOR+

D2601

R2615

D2602 SPR-39MVWF R2614 R2750 R2084 10K 220 R2719 220 R2720
FW907 SW202 QSW0933-001

47

Q2601 KRC102S-X

680

KTC3875/GR/-X Q2709 D2902
D2723

R2085 R2086 47K 47K R2087

C
47K
R2622 R2024 R2023 R2021 R2020 R2019 R2018 R2017 R2016 R2015 R2012 R2011 R2010 R2009 R2008 R2007 R2006 R2005 R2003 C2002 C2001 0.01 0.01 1K 10K 10K 1K 2.2k 2.2K 1K 1K 10K 10K 15K 10K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K

MTZJ7.5C-T2

220
D2724

R2723 270
R2001 R2002 10K 2.2K 1K R2100 R2083 2.2K

KTC3875/GR/-X Q2711

D2904 NSTM515AS DOWN MIDDLE UP R2721 DGND 270 R2722
QUM024-10DGZ3

R2724 270

KTC3875/GR/-X Q2710 D2903 MTZJ7.5C-T2

C2704 33P

270
SW201 QSW0803-001 10K

PIN

UP

X2701 QAX0283-001Z RMT1 POUT RMT0 ECHO SMUTE VOLCK DOWN MIDDLE KARAOKE VOLCE TUNERPOUT

FCD

TUST

MPX%

LEDCTL BUZZER

CDMUTE

FTUNER

RDSDATA

PBMUTE

R2751 220 R2082 PLAY STTA SCK SDATA R2081 R2080 R2079 2.2K 2.2K 2.2K 2.2K R2725 220 C2014 100P C2013 100P R2726 220 R2729 KTC3875/GR/-X 270 C2012 100P RS R2077 100 RS R2730 270 Q2714 KTC3875/GR/-X Q2712

R2025 VOLDA AHB% BUP BTCL% C2705 33P R2027 R2028 10K 1K R2026 2.2K

1K

D2725 D2726

D2906

MTZJ7.5C-T2

R2029 D2001 XKILL VDD 1SS133-T2 C2708 100/16 1K

D2908 NSTM515AS

QGD2504C1-04Z

C2709 0.01

IC701

UPD784214AGF527

CN906

VSS C2710 22P R2030 XT2 XT1 RESET% REM% R2031 R2032 R2033 R2034 1K 100P PHOTO C2004 C2711 22P 2.2K 1K 100K 100K

SDA RESET CS SCL

R2075 R2070 R2073 R2072

100 100 100 100

SDA RESET CS SCL

R2727 270
CN909

KTC3875/GR/-X Q2713 D2907 R2728
CN709

QGB2024J1-20S

QGB2024K1-20S

D
X2702 QAX0401-001 KTA1504/GR/-X Q2703

MTZJ7.5C-T2

270 DOWN R2752 MIDDLE 220 UP R2731 220 R2732 BLUE 220 SW10V GREEN
FKEY2 FKEY1 KEY1 TUDATA AVREF GCOL CDTXD CDRXD D2732

KTC3875/GR/-X Q2715

D2731

D2910

MTZJ7.5C-T2

C2712

D2701

R2735 270 RED
RCOL TUCK LOCK BCOL

SAFETY2

SAFETY3

KTC3875/GR/-X Q2717

D2912 NSTM515AS
CDRST%

2200/6.3 L2001 R2705 330 QQL244K-100Z C2713 2.2/50 10K KTC3875/GR/-X R2706

R2039

DGND REM% R2040 SCL CS RESET
R2060 R2061 R2097 R2098 R2099 R2051 R2052 R2057 R2041 R2042 R2043 R2046 R2048 R2050 R2066 R2064 R2062 R2044 R2089 R2624

R2736 270 R2733 270 R2734 C2005 0.01 SDA RS LEDCTL UP
1K 1K 1K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K 2.2K

UX-A52R

2-2
Q2704 L2002 QQL244K-100Z

KTC3875/GR/-X Q2716 D2911 MTZJ7.5C-T2

270

R2707 10K
R2708 10K

REM% 10K 10K R2095 R2096 MIDDLE DOWN LCD5V
CDTXD

IC901 GP1UM271XK

D2702

C2901 100/10
K2001

QQR0621-001Z

R2709 10K KTC3875/GR/-X R2710 100K
Q2705

TUDATA

CDRXD

TUCK

CDRST%

BCOL

C2909

RCOL

MOTOR+
TLMT+ LOAD TLMTUNLOAD

C2902 MOTORR2901 10K C1009

0.001

100P

C2907 100P

C2908 100P

C2904 100P

UX-A52R

E
4.7/50 C2714 R2711 47K

QGF1016F1-14

QGF1016F1-14

D2705

C2009

C2010

CN918

C2011

CN908

1

100K

C2015 47/10

R2045

R2088

R2047

10K

10K

R2712 33K MTZJ5.1C-T2

D2703

AHB%

C2905
100P 100P 100P

C2906

1
V5OUT

1
RS RESET VDD

CS

SCL

SDA

V5

D2708

CN907 QGA2501F1-02

C1+ C1-

VSS

R2049 10K

QGB2510J1-12

KI901 QLD0184-001

MGNDB
VOLCK

SW5V TUNER+B

FCD TUNERPOUT

F
SMUTE POUT A9V AHB

CN711 J2003 GP1FA550TZ R2237 VOLDA R2505 VOLCE K2002 QQR0621-001Z

R2128 4.7K
R2235 51K

2.2K

R2127 1.8K 10/16 C2219
15K

R2227 1.8K

C2502 100/16
2.2K

2.2K

C2104 0.27 R2126 2.2K

C2103 0.082

R2503 2.2K

R2225

R2226

22/16 R2125 2.2K C2101 22/16 C2604 R2129 7.5K
D2201 R2234 10K 1000p C2750

C2201 C2203 C2202 0.082 0.082 0.082 C2105 C2600 R2130
BUZZER

DGND C2204 0.27 C2205 104 0.082 C2207 C2106 7.5K
FKEY2 PIN% FKEY1 DGND

R2228 4.7K
IC702

C2603

0.082 R2229 7.5K 104 C2102 0.082 C2206 0.1 104 C2107 0.1 C2108 R2131
D2202 10K LC75345M-X

VCC5V DOUT

Q2203 KTC3875/GR/-X

104 7.5K C2208 0.1 CN705 QGF1201C3-05 C2109 1.8K R2132 1.8K C2110 C2125 4.7/50 C2126 10/35 C2127 4.7/50
R2137 R2134

0.1 C2209 0.0027 4.7/50 C2210 C2225 C2226 C2227 4.7/50 4.7/50 10/35 4.7/50

R2230
1.8K

C2602
R2231

0.082 0.0027

R2232 CN905 QGF1201F3-05
PIN%

1.8K
15K

C2229 C2129 4.7/50 C2130 4.7/50
C2119 0.012 0.012 C2211

4.7/50 C2230 C2231 4.7/50 22/16

KTC3875/GR/-X Q2103
120K

R2233
R2135

220K S2609
R2601 1K

S2601 1/50 C2131

R2620

R2621

R2133 220K 150K R2136 S2610
R2602 R2608 1K 1K

82

82

G H I

S2602

R2206 15K

15K

R2106

R2415 82K

R2416 82K

S2611
1.2K R2609 1K R2603

S2603

PHOTO
R2417 390K

Q2403 KTC3875/GR/-X

S2612
1.5K R2604 R2610 1.2K

S2604

TUDATA TUST
R2418 100K C2404 0.01

TUCK MPX%

S2613
1.5K

S2605
R2605 2.2K R2611

R2110 1.2K R2210 1.2K S2614
R2606 R2612 2.2K 2.7K

TUL

TUR

S2606 R2104 10K
C2453

R2204 RDSCK 10K
R2105 R2205 R2108 R2208 0.0082

RDSDATA C2112 C2212
R2407 3.9K 3.3K 1.8K 4.7K 1.8K 4.7K R2111 6.8K C2114

R2411 5.6

D2046

R2408

D2452

D2451

S2615
3.9K R2607 R2613 2.7K

S2607

220P
39K 0.01 R2103

220P
R2203 39K

CN701

QGF1205C1-13

1.8K

R2109 1.8K

R2209 C2214 R2211 6.8K

S2616
R2617 5.6K

S2608
J2001

0.0082

BZ201 QAN0045-001

PBL

PBR

RECL

SCK

RECR

SW10V

SAFETY1

STTA

KEY1

PLAY

SDATA

S2617

UX-A52R

Power amplifier & Power supply circuit
Q1701 DTA144WSA-T R1702 5.6K

10/50

QQR0797-001 L1201

IC801 LA4628

R1703 5.6K R1704

DTA144WSA-T

0.0033

C1207

C1107

10/50

R1201

3.9K 3.9K

10/35 10/35 C1105

C1111

R1101

0.0033

C1205

INR4 INL4 330P 330P

C1110 220P

R1705 5.6K

C1707

Q1703

6
2SD2144S/VW/-T 2SD2144S/VW/-T
Q1202 4.7K R1210 R1110 Q1023 KRA101M-T

5.6K

C1211

DTA144WSA-T

C1210 220P

J1001 QNB0133-001

C1706

Q1702

DTA144WSA-T Q1704

K1010

QQR0779-001Z

W1001

L1101 QQR0797-001 +OUTL

QNS0030-001 QQL231K-470Y L1004 R1091 150 150

R1113

R1213

R1114

R1111

R1112

R1211

4.7K

4.7K

R1212

100/16

C1052

C1053

33/50

1/50

1/50

R1214

22K

22K

22K

2.2

22K

2.2

2.2

2.2

R1115

1/50

2.2/50

R1109

C1055

C1056

0.001

0.001

4.7K

R1215

0.1

0.1

0.1

0.1

R1090 K1009

QQL231K-470Y L1003

R1209

C1054

R1086

R1087

0.1

470 470 100/16

Q1102

C1106

C1042

C1043

C1046

C1047

C1109

C1206

C1108

C1209

C1208

0.056

0.056

C1058

QQR0779-001Z

J1002

CN804 QGA2501C1-05

6.8K

6.8K

L1005 QQL231K-470Y

R1049 D1026 330

5
D1403 R1077 10K D1404 D1405

D1027

IC802 L4909

C1018

C1017 0.1 D1015

Q1705

C1016

8200/25

IN5401-TM

IN5401-TM

IN5401-TM

KIA78S05P-T

0.1

Q1301

IN5401-TM IC803 D1013

C1302

1000P

2SC2001/LK/-T

R1301

560

0.1 C1015 Q1801 KTB772/Y/

C1710

C1908

4
C1401 0.1 D1401 MTZJ8.2B-T2 C1402 100/16

100P

0.01

D1801 MTZJ13B-T2

R1901

MTZJ11A-T2

R1501

C1801

9.1K

R1805

4.7K

C1709

R1601

4.7K

6.8K

C1501

1.0

C1502

C1803 220P

R1804 680

2SC2785/FE/-T Q1804

D1904

C1901

C1902

330/25

100/16

C1602

C1301

D1301

C1601

1.2K

R1602

R1502

680

R1803 680

R1807

100/16

100/16

100/16

Q1803 2SC2785/FE/-T

R1802

0.1

R1801 680

2.7K

S1 Q1607 D1005

D1603

R1615

MTZJ5.6B-T2

470

D1901 MTZJ10C-T2 D1501 MTZJ8.2C-T2

KRC110M/-T

AC2 1.8K

C1005

C1006

D1902

2200/25

IN5401-TM

MTZJ8.2C-T2 QQR0621-001Z K1002

KTA1023/0Y/-T

Q1706

IN5401-TM 0.022 C1002

R1706

QQR0621-001Z QQR0621-001Z

K1004 K1005 K1006

100/10

D1701

10K QUY150-050Y

MTZJ5.6B-T2

D1605

Q1707

2SC2785/FE/

C1701

C1001

D1703

2200/25

D1002

D1001

D1604

D1601

D1003

D1903

C1003 0.022

3

F1003

D1905

D1004

0.022

CN803

R1616 10K

0.022 IN5401-TM

IN5401-TM

R1617

1N5401-TM

C1004

AC1

QGA3901C1-04

R1806

R1902

1.2K

1.2K

C1802

47/25

1.0

680

0.1

F1004

D1012 0.1

D1014

C1014

DTC144WSA-T

2SC2785/FE/

QQT0360-002 C1008 QSK0124-001 0.0047/250

R1708

Q1708

R1707

1K

1K

2

D1606

RY801

QGB2510K2-04

D1007

QGB2510J1-04

D1008

CN809
R1004 D1006 T1002 3.3K Q1004

D1402

L1006

2SC2785/FE/

1N4003

F1001

CN805

CN808

C1007

SAFETY2

1000/25

QGB2510K2-12

QGB2510K2-12

1
MAIN SIGNAL

J1003 QNC0006-001

CN801

CN802

QQR1145-001

QGA7901C1-02

Parts are safety assurance parts. When replacing those parts make sure to use the specified one.

A

B

C

D

E

F

G

H

I
2-3

UX-A52R

UX-A52R

CD control circuit

MRDY CDCOPY CDTNO CDEMP

6
R601 180k TBAL
100 1k 1k 1k CDINDEX

R602

82k

FBAL FE

R281

R282

R283

R284

TE
C605 39k 270p

C604

R256

1k

MCS

QGF1016F2-06 0.022 C603
SUBQ R603

CN671

0.022 F

82p

R604

220k

C606

R605

C607

E

NI

C271

C272

C601 0.001

C602 0.001 SQCK GCTL R257 KCMND MSTAT 1k R259 R263 1k 1k UPD7800F0034A 1k
AN22000A

0

1k

5

B+D A+C

KCLK

R262

IC251

1k 1k

R251 R252 R253

MCLK MDATA MLD

C256
0.1/25 100/10

0.1/25

1k

R254

/DMUTE STAT

6.8k

C622

C633

IC601

C621

6.8k

10k

10k

/RESET

R271

R272

R273

A+C

0.022 /OPEN /REST

R274

IREFx4 R264 5.6k R265 3.3k D251 DA204U-X

F 47k R608 E 47k R607 B+D

R635 10
0.0027 0.0027 0.1/50 0.039

/RFDET OFT C617 330p
C612 C614 C615 C616

R636 150

D601

NI R631 2.2
1/16 100/6.3 0.1/16

BDO TP1 ARF RFENV C273
10k C255

D292 MA112-X

FR632 F+ T+ C632 1/16 R634 CN601 @HFW15R-1STE1 Q631 3.9 2SA1037AK/RS/-X 3.9 C631 10/16

4

0.056/25

X251
R275

C624

C623

C611

C254

T-

@CSTS8.38MG

0.1/25

47/10

C610

IC291 TK11235BMC-X

QGF1016F2-19W CN651 KCMND MSTAT R258 1k

NI C681 C608
FLAG BLKCK

NI NI R617
R611 R613 5.6k 5.6k

Q651 DTC114EUA-X

D291 MRDY KCLK MCS
C291 1/25

5.6k

C682 15p Q652 C683 22p TP2 0.01/50 DTC114EUA-X C293

R260 R255 R285

1k 1k 1k

C292 1/25

C658 0.1/25
/DMUTE /RESET BLKCK MDATA SQCK SUBQ STAT MCLK MLD

NI
LRCK BCLK SRDATA

D603

R675

1k

1k

1k

1k

K656

K657

NQR0007-002X

K658

10
NQR0251-004X NQR0251-004X NQR0251-004X 100/6.3 C657

R651

R652

R653

R654

0.33/16
K655

3
TVD
C678 0.1

C655

0.1/16

C653

ECM ECS

R862 680

C862 560 R864 C864 2700p CDINDEX CDTNO

QGF1016F2-08W CN606

TRD FOD
C802

IC651

C673 100/10

1000p

MN662790RSC R666

C861 1000p R861 680 K652 NQR0288-004X R863

C863 2700p

R812 1.5k FBAL C815 C677
R677

CDCOPY LRCK CDEMP

220

1000p

R803

4.7k

TRD

FE TE RFENV R682 1k

1k

2.2/10

TBAL

0.1/25

560

SRDATA

BCLK

R655

C801 0.022

390p

390p

C816 1.5/6.3 R802 1.5k FOD /RFDET BDO GCTL

R683 1M

10k

R813 1.8k

T+

F+

T-

F-

OFT

C676

0.1/25

FLAG

IC652 TC7S00F-X QGA2001F2-02X
33k

C811

1/16 C821

R801 2.7k

R804

10k

2
SW102 QSW0931-001 /OPEN
LA6541-X

C814

R656

R661

68k

CN607 K651
C654 0.1/16

R657

R659

33k

R658

NQR0288-004X QGF1016F2-04W CN605

C822 220/10

R678 R679 C661
R685 68k

1k

ARF 470p

1k
100

SW101

R671
IC801

R667 4.7
100/10

DTA114EKA-x Q673
330

680k
C667

QSW0927-001

/REST

R665

QAX0599-001Z
0.1/25 C656

D602

X651
0.47/16

0.1/25

R662

NI M851

68k

C679

C680

NI

R673

R663

R664

C651 1p

C652 1p

C668 NI

C818 QAR0176-001 1/16 ECS FM+ 47k M852 R811 R807 0 R809 1.5k

0.022

0.022

1.5M

C664

C663

390p

C812

SM+

C813

1

C817 QAR0175-001 1/16 SM+

390p

R805

5.6k

TVD IREFx4

FM+

SM-

FM-

R668

C665

SM-

0.15/16

R669

R808

18k

ECM

R672

FM-

5.6k

68k

68k

CD SIGNAL

A

B

C

D
2-4

E

F

G

H

I

UX-A52R

Tape circuit

IC1

0.0022 R3205

R3201

R3210

22/16

22/16

560P

2.7K

QSW0859-001

C3205

100K

22

SW4

SW5

SW1

SW2

SW6

R3209

6
820P 220P

SG-105F3-BB,C

C3207

C3304

C3213

C3203

220/6.3

C3305

0.039

Q3201 DTC114TKA

1K

C3211 0.0015 R3211 36K

R3212 2.2K

R3203 2.4K

R3202 1.8K

3.3K

C3204 0.033

R3206

R3208 5.6K

C3208 4.7/25

C3201

C3202

C3206

C3306

10/16

IC331

BA3126N R3304 100 R3378 47 CN715 QGA2001C1-13

R3219

5
QGA2001C1-07 CN716 C3301 100/10

R3301

4.7/25

220

1K

47/16
IC332 AN7317

C3209
C3210 R3207 12K 0.0068

C3374 C3106 220/6.3 10/16
C3104 0.033 R3103 2.4K R3102

R3107 12K

C3302

C3303

1.8K

0.039

C3110 0.0068

R3371

10K

R3106

R3108 5.6K

C3108 4.7/25

VR337 R3111 36K QVP0008-103Z

C3103

3.3K

C3109

220/6.3

C3111

4.7/25

820P

C3113

R3112 2.2K

0.0022

560P

0.039

D3000 1SR139-400-T2

100K

C3101

R3101

C3107

R3109

R3110

4
R3116 1K

220P

Q3101 DTC114TKA

39K

0.0015

1K

2.7K

22

C3102

R3105

C3105

R3303

Q3375

2SB562/C/

Q3371

2SA952/LK/

C3376

0.01

MA3051/M/ Q3376 2SC2412K/RS/

1K

R3305 2.2K

R3372

D3375

R3338 3.9K

QVP0008-203Z VR331

Q3372 DTC124EKA

R3337 3.3K

R3375

R3376

R3121 22K R3221 22K

330P C3221

L3303 QQL244K-100Z

R3353

330P

3
L3301 QQR1118-001 R3327 470K Q3302 2SC2001/K/ R3315 100 R3314 15K C3308 0.0015 IC333 BU4094BCF

4.7/25

C3121

C3371

150

68K

100/10

100/10

1.5

2.2

C3310

R3335

0.022

C3313

C3314

R3313

1.5K

20K

R3341

12K

0.0047

0.022

Q3321 DTC144EKA

R3335

4.7K

47/16

R3339

2.2K

C3331

R3310

C3319

2

C3316

4.7

Q3305 2SC2001/LK/

TAPE P. B. SIGNAL

1
Parts are safety assurance parts. When replacing those parts make sure to use the specified one.

A

B

C

D

E

F

G

H

R3342

R3343

18K

I
2-5

UX-A52R

UX-A52R

Tuner circuit

6

TU1 QAU0160-001 C17 0.0039 C18 0.47/50

R23 1.8K

C48 0.0022

C54 C53 0.047 22/16 C56 10P L2 33 C55 33P

C52 0.27 C51 1/50 C58 0.047 C50 22/16

C49 470P

R60

5
R5 1SS133-T2 56 C57 0.001

R40

39k

0.022

C47 1/50

C46

C60

0

C45 10/16 C44 10/16

R38 39K R39 39K

330

220K

D1

D2 Q1

C19

0.047

C25 100/10

R10 2.2K

R4

C20 1000P

R3

R26 2.2K

R25 330

2SC2814/4-5/-X

0.022 C3

1SS133-T2

C1

10/16

0.01

C2

C4

0.01

C15 12P

C43 0.0018 R41 3.3K C42 0.0018

R2

330

R6 12

CF1 QAX0420-001

X1

C10 12P L3 4.7 Q2 2SC2412K/R/-X D4 1SS133-T2 Q3 2SC2412K/R/-X Q4 DTA114YKA-X 1SS133-T2 D3

QAX0402-001 IC2

LC72136N LA1838

R22

4.7K

C16 12P

R11

R12

4

J1 QNB0014-001

4.7k

4.7k

R37

C32 0.047

C33

0.047

10K

1K

1K

1K

22/16

C31

CF2 QAX0458-001Z R21 5.6K

R34

R19

R18

R20

47

R36

C22 150P C23 150P C24 150P R30 1.2K

C34

C35

C37 1/50

5.6k

0.001

C9

R35

C36 1/50

C39

1/50

Q5 DTA114YKA-X

T1 QQR0793-001

C38 3.3K 0.22/50

R24

10K

0.022

0.047

C40 10/16

C41 10/16

IC1

3
R13 10K

R70 10K

1K

L1 QQR1094-001

1K 1K

R29 10K

C21 0.022

C73 0.1

C70 22P

R71
CF3 QAX0610-001Z

R72

R28 10K

R27 10K

100K

R14

QAX0263-001Z
C72 560P

C12 0.047

C13 12P

R73

R33

330

C30 100/10

IC3

LC72723

R15 3.3K C11 0.1 C14 100/10 R16 4.7K R17 68( 1/4W) F.RES. C26 0.01

R32 1K C76 330P C74 0.1 C71 22P

C75 C7 0.001 C6 0.001 10/50 C27 0.01 R31 1K L70 C59 0.001

STEREO

1SS133-T2

2

D11

100

ROUT D.GND

DATA

LOUT GND

RDDA

RDCL

5.6V

CE

CK

9V

CN1 QGF1205F1-13

AM SIGNAL

1

FM/TUNER SIGNAL RDS SIGNAL Parts are safety assurance parts. When replacing those parts make sure to use the specified one.

X70

SHEET 1/7

A

B

C

D
2-6

E

F

G

H

I

UX-A52R

Printed circuit boards
Main board

6

5

4

3

2

1

A

B

C

D

E

F

G

H

I
2-7

UX-A52R

UX-A52R

Power amplifier & control & AC jack board

6

5

4

3

2

1

A

B

C

D
2-8

E

F

G

H

I

UX-A52R CD servo control board

Forward side
M851

CN651

6

R604 IC291 C658

R258 R260 R255 R285

R634

C292

C605 R603

C822

C606

Q631

R632 R291 R292 R293

C821

R805

R808

CN601

C610

C611 C608

R812

C802

R611 R613

R803

C624

C815

R813 C816 R283

C617

R282

C661 R672

R682

IC651

C254

R284

R261

R256

5

C679

C676

R272 R271

C653 R651

R254

C651

R661 R659

R677

C678

K657 K658

SW101

K655 K656

C261

CN607

X251 M852 SW102

X651

4

C652

R665

C677 C673 C663 R662 R668 R685 C665 R664 C667 C668 R669

R671

Reverse side

R635

3
M851

R636

C633

CN651 C813 R811

R607 C601

CN671

R259

C604

C631

C818

R262

IC801

C822

D292

R601 R602

R276

R263

TP2

C621

C622

C632

R608 C602

CN606

C612

R281

R617

C657 R652 R653 R654

R257

C271

R804

R802 C272

R809 C812 R801 C801

IC601

C622

C631

C603 C681

R273 R274

C256

C254

C255

C811

C814

R678

D601 R631

C623

2

C624

C616 C615 C614

C612 TP1 C682 C683 Q652 Q651

D603

R675

D602

C657 C655 C863 C864 R683

R275

R663 C664

R863

R864

SW101 IC251 X251 R251 R252 R253 C861 D251

C273

R679

Q673 C654

C862

C656

R265

R861

R862

R666

R264

R657

R658

C817

M852

C673 R656 R655 K652

A

B

SW102

C

D

K651

1

IC652

R673

R667

C680

C679

CN605

C291

E
2-9

UX-A52R Tuner board

6

5

4

3

2

1

A
2-10

B

C

D

E

UX-A52R Traverse mechanism board

(Forward side)
6

(Reverse side)
S602

5
CN601

4

(Traverse mechanism board)

3

Cassette switch board

MT601

MT602 S601

SW1

SW2

SW3

2
T01

D1

P1 CN1 SW6

SW4

SW5

IC1

1

A

B

C

D

E
2-11