Aiwa SC-UC78 User manual

ACTIVE SPEAKER SYSTEM
SC-UC78
S/M Code No. 09-993-326-9R2
U<W>
SERVICE MANUAL
REVISION
This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
SC-UC78 (D<S>,UW)(S/M Code No.09-993-326-9T1) .
DATA
R
L
aiwa aiwa

2
SPECIFICATIONS
•
Design and specifications are subject to change without
notice.

3
REF. NO PART NO. KANRI DESCRIPTION
NO.
REF. NO PART NO. KANRI DESCRIPTION
NO.
ELECTRICAL MAIN PARTS LIST
IC
87-A20-754-010 IC,BA4558N-DX
87-001-596-010 IC,NJM4580L
87-001-629-110 IC,LA4630
87-A20-356-080 C-IC,MM1326AJBE
8Z-YP5-607-010 IC,UDA1321T
87-A21-195-080 IC,RE5RE33AA
TRANSISTOR
89-213-702-010 TR,2SB1370 (1.8W)
89-110-155-080 TR,2SA1015(0.4W)
89-318-155-080 TR,2SC1815 (0.4W)
89-420-612-010 TR,2SD2061 (2W)
DIODE
87-020-465-080 DIODE,1SS133 (110MA)
87-A40-458-080 ZENER,MTZJ18B
87-017-933-080 ZENER,MTZJ10D
86-SP2-646-010 151-540235,DIODE IN5402LT
MAIN C.B
C1 87-018-131-080 CAP, CER 1000P-50V
C2 87-018-131-080 CAP, CER 1000P-50V
C3 87-018-127-080 CAP, CER 470P-50V
C4 87-018-127-080 CAP, CER 470P-50V
C5 87-010-495-040 CAP,E 2.2-50 GAS
C6 87-010-495-040 CAP,E 2.2-50 GAS
C7 87-018-209-080 CAP, CER 0.1-50V
C8 87-010-405-080 CAP, ELECT 10-50V
C25 87-010-404-080 CAP, ELECT 4.7-50V
C26 87-010-404-080 CAP, ELECT 4.7-50V
C27 87-010-248-080 CAP, ELECT 220-10V
C28 87-010-248-080 CAP, ELECT 220-10V
C31 87-010-491-040 CAP,E 0.22-50 GAS
C32 87-010-491-040 CAP,E 0.22-50 GAS
C33 87-010-406-080 CAP, ELECT 22-50
C34 87-010-406-080 CAP, ELECT 22-50
C35 87-010-236-080 CAP,E 1000-10 SME
C36 87-010-235-080 CAP,E 470-16 SME
C45 87-010-384-080 CAP, ELECT 100-25V
C46 87-018-209-080 CAP, CER 0.1-50V
C47 87-A10-797-040 CAP,E 47-35 M 5L SRM
C48 87-010-394-080 CAP ELECT220-35V
C50 87-018-209-080 CAP, CER 0.1-50V
C51 87-010-396-080 CAP,E 470-35 SME
C52 87-010-393-080 CAP, ELECT 100-35V
C53 87-A10-641-090 CAP,E 4700-35 UTES
C54 87-018-209-080 CAP, CER 0.1-50V
C55 87-018-209-080 CAP, CER 0.1-50V
C56 87-018-209-080 CAP, CER 0.1-50V
C57 87-018-209-080 CAP, CER 0.1-50V
C58 87-018-202-080 CAP.CERAM.6800PF
C59 87-018-202-080 CAP.CERAM.6800PF
C60 87-010-494-040 CAP,E 1-50 GAS
C61 87-018-209-080 CAP, CER 0.1-50V
C62 87-010-405-080 CAP, ELECT 10-50V
C63 87-010-263-080 CAP, ELECT 100-10V
C64 87-018-131-080 CAP, CER 1000P-50V
C65 87-010-236-010 ELECTROLYTIC, 1000-10
C77 87-010-405-080 CAP, ELECT 10-50V
C78 87-010-405-080 CAP, ELECT 10-50V
CN1 87-099-543-010 CONN,10P TKC-M10P-B1
CN3 87-099-043-010 CONN 2P EH
CN7 87-099-043-010 CONN 2P EH
J2 87-YP5-607-010 JACK 3.5 ST W/SW HP
J3 87-YP5-619-010 JACK DIN 5P
! PR2 87-A90-069-080 FUSE,2A 125V 251
! PR3 87-A90-069-080 FUSE,2A 125V 251
R67 87-029-167-060 RES,FUSE 10-1/4W J
FRONT C.B
C9 87-010-405-080 CAP, ELECT 10-50V
C10 87-010-405-080 CAP, ELECT 10-50V
C15 87-010-406-080 CAP, ELECT 22-50
C16 87-010-406-080 CAP, ELECT 22-50
C17 87-010-260-080 CAP, ELECT 47-25V
C18 87-018-209-080 CAP, CER 0.1-50V
C19 87-010-405-080 CAP, ELECT 10-50V
C20 87-010-405-080 CAP, ELECT 10-50V
C21 87-018-209-080 CAP, CER 0.1-50V
C24 87-010-260-080 CAP, ELECT 47-25V
C66 87-010-405-080 CAP, ELECT 10-50V
C67 87-010-405-080 CAP, ELECT 10-50V
C76 87-010-405-080 CAP, ELECT 10-50V
C79 87-018-209-080 CAP, CER 0.1-50V
C79 87-018-209-080 CAP, CER 0.1-50V
C80 87-010-405-080 CAP, ELECT 10-50V
D1 87-YP5-627-010 153-DLTL4231,LED DIA3 GRN
CN2 87-009-797-010 CONN,10P TKC-M X
S2 84-SP3-623-010 SW,PUSH 2-2-2
VR1 87-YP5-622-010 104-10KA-11001,VR RTRY 10KAX2
VR2 87-YP5-623-010 102-20KB-11001,VR RTRY 20KBX1H
USB C.B
C201 87-010-190-080 S CHIP F 0.01
C202 87-010-190-080 S CHIP F 0.01
C203 87-010-314-080 C-CAP,S 22P-50V
C204 87-010-314-080 C-CAP,S 22P-50V
C205 87-010-178-080 CHIP CAP 1000P
C206 87-010-311-080 CAP 12P
C207 87-010-149-080 C-CAP,S 5P-50 CH
C208 87-016-044-040 CAP,E 100-16 GAS
C209 87-010-196-080 CHIP CAPACITOR,0.1-25
C210 87-010-196-080 CHIP CAPACITOR,0.1-25
C211 87-016-044-040 CAP,E 100-16 GAS
C212 87-010-196-080 CHIP CAPACITOR,0.1-25
C213 87-010-196-080 CHIP CAPACITOR,0.1-25
C214 87-010-196-080 CHIP CAPACITOR,0.1-25
C215 87-010-196-080 CHIP CAPACITOR,0.1-25
C216 87-010-196-080 CHIP CAPACITOR,0.1-25
C217 87-010-196-080 CHIP CAPACITOR,0.1-25
C218 87-010-497-040 CAP,E 4.7-35 GAS
C219 87-010-196-080 CHIP CAPACITOR,0.1-25
C220 87-010-497-040 CAP,E 4.7-35 GAS
C221 87-010-497-040 CAP,E 4.7-35 GAS
C222 87-010-178-080 CHIP CAP 1000P
C223 87-010-178-080 CHIP CAP 1000P
C224 87-010-196-080 CHIP CAPACITOR,0.1-25
C225 87-010-196-080 CHIP CAPACITOR,0.1-25
CN201 87-009-311-010 CONN 5P 51048
J201 87-A60-853-010 JACK,USB-B
L201 87-A91-164-010 FLTR,ZJY-M4A
L202 87-003-142-080 COIL,3.3UH LAL02
L203 87-A50-182-080 C-COIL,3216 BLM31A601S
L204 87-A50-182-080 C-COIL,3216 BLM31A601S
L205 87-A50-182-080 C-COIL,3216 BLM31A601S
X201 8Z-YP5-608-010 VIB,48MHZ XTAL
PT2 C.B
! 87-033-213-080 CLAMP, FUSE
CN6 87-099-043-010 CONN 2P EH
! F1 87-035-489-010 FUSE,4A125V D UL
! T1 82-304-743-010 TERMINAL, 1P

4
REF. NO PART NO. KANRI DESCRIPTION
NO.
TRANSISTOR ILLUSTRATION
! T2 82-304-743-010 TERMINAL, 1P
PT1 C.B
! PT1 87-YP5-608-110 PT,U
• Regarding connectors, they are not stocked as they are not the initial order items.
The connectors are available after they are supplied from connector manufacturers upon the order is received.
88
A
Resistor Code
Chip Resistor Part Coding
Figure
Value of resistor
Chip resistor
Wattage Type Tolerance
1/16W
1/10W
1/8W
1608
2125
3216
5%
5%
5%
CJ
CJ
CJ
Form LW t
1.6 0.8 0.45
2 1.25 0.45
3.2 1.6
108
118
128
: A
: A
CHIP RESISTOR PART CODE
0.55
Resistor Code
Dimensions (mm)
Symbol
1/16W 1005 5% CJ 1.0 0.5 0.35 104
Lt
W
E C B BCE
2SA1015
2SC1815 2SB1370 2SD2061

65
IC BLOCK DIAGRAM
IC, MM1326AJBE
GP2/DO
GP3/WSO
GP4/BCKO
SHTCB
D-
D+
VDDI
VSSI
VSSE
VDDE
VSSX
XTAL1
XTAL2
VDDX
VREF
VSSA
VDDA
VOUTR
VSSO
VDDO
VOUTL
TC
RTCB
GP0/BCKI
GP5/WSI
SCL
SDA
GP1/DI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
IC, UDA1321T
Pin No. Pin Name I/O Description
IC DESCRIPTION
General purpose pin 2 or data output for extra DSP chip.
General purpose pin 3 or master word select output for extra DSP chip.
General purpose pin 4 or master bit clock output for extra DSP chip.
Shift clock TCB input. (Active HIGH)
Negative data line of the differential data bus conform to the USB-standard.
Positive data line of the differential data bus conform to the USB-standard.
Digital supply voltage core.
Digital ground core.
Digital ground I/O pins.
Digital supply voltage I/O pins.
Crystal oscillator ground.
Crystal oscillator input 1.
Crystal oscillator output 2.
Crystal oscillator supply voltage.
Reference output voltage.
Analog ground.
Analog supply voltage.
Right channel output voltage.
Operational amplifier ground.
Operational amplifier supply voltage.
Left channel output voltage.
Test control input. (Active HIGH)
Asynchronous reset input for test control box. (Active HIGH)
General purpose pin 0 or master bit clock input.
General purpose pin 5 or word select input.
Serial clock input. (I2C-bus)
Serial data input/output. (I2C-bus)
General purpose pin 1 or data input.
I/O
I/O
I/O
I
I/O
I/O
—
—
—
—
—
I
O
—
O
—
—
O
—
—
O
I
I
I/O
I/O
I/O
I/O
I/O

87
SCHEMATIC DIAGRAM-1 (MAIN/FRONT)
AC: 120V 60Hz

123456789
10 11 12 13 14
A
B
C
D
E
F
G
H
I
J
K
109
WIRING-1 (MAIN/FRONT)

1211
SCHEMATIC DIAGRAM-2 (USB)

123456789
10 11 12 13 14
A
B
C
D
E
F
G
H
I
J
K
1413
WIRING-2 (USB/PT)

1615
MECHANICAL EXPLODED VIEW 1/1
aiwa
D
D
E
D
910
11
12
14
15
16
4
17
18
19
8
20
P.C.B
21
22
23
14
HI-SINK
24
25
28
26
27
G
EA
A
E
F
E
E
E
E
E
B
C
A
A
8
1
2
3
45
6
7
8
813
CABI BAFFLE
DD
H
A
A
C
B
B
B
D
D
D

17
REF. NO PART NO. KANRI DESCRIPTION
NO.
REF. NO PART NO. KANRI DESCRIPTION
NO.
MECHANICAL PARTS LIST 1/1
1 87-YP5-203-010 401-1LG7YP-5,FRAME L
2 87-YP5-003-110 CABI,FRONT L
3 87-YP5-606-110 SPKR ST 77 4OHM
4 87-YP5-011-010 331-7YP-5,GRILL SIDE
5 87-YP5-004-010 401-1LC7YP-5,CAB REAR L
6 87-YP5-204-010 401-107YP-5,RING DUCT
7 87-YP5-605-210 SPKR,W 100 6OHM
8 87-YP5-208-010 430-F7YP-5,FOOT BOT
9 87-YP5-202-010 401-1RG7YP-5,FRAME R
10 87-YP5-007-010 400-1RK7YP-5,KNOB RTRY
11 87-YP5-008-110 WINDOW,LED
12 8Z-YP5-005-010 CABI,FRONT R USB UL
13 87-YP5-620-010 186-7YP-5,CORD ASSY DIN
14 87-084-078-010 NYLON RIVET
15 8Z-YP5-609-010 F-CABLE,5P 2
16 8Z-YP5-006-010 CABI,REAR R USB UL
! 17 87-YP4-620-010 AC CORD ASSY,U SPT-2W
18 86-SP2-637-010 BUSHING,AC U
19 8Z-YP5-612-010 CORD ASSY,3.5ST-VW1
20 87-YP5-236-010 COVER,TERMINAL AC
21 87-YP5-220-010 HLDR,HT
22 8Z-YP5-201-010 HLDR,JACK-USB
23 8Z-YP5-202-010 HLDR,PWB-USB
24 87-YP5-209-010 HLDR,PWB
25 87-YP5-006-010 400-1QK7YP-5,BTN KNOB 0 SOUND
26 87-YP5-626-010 SW,PUSH 1-1-1 SY16-52-3
27 87-YP5-005-010 400-1PK7YP-5,BTN KNOB POWER
28 87-YP5-213-010 HLDR,LED
A 87-067-581-010 TAPPING SCREW, BVT2+3-15
B 87-067-945-110 VFT2+3-12(F10)
C 87-YP5-227-010 VFT2+3-18 W/O (F10)
D 87-067-822-010 BVT2+3-20 W/O SLOT
E 87-067-703-010 TAPPING SCREW, BVT2+3-10
F 87-067-688-010 BVTT+3-6
G 87-067-566-010 TAPPING SCREW, VFTT+3-6
H 87-067-873-010 BVT2+3-25 W/O SLOT
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
COLOR NAME TABLE

18
REF. NO PART NO. KANRI DESCRIPTION
NO.
ACCESSORIES/PACKAGE LIST
1 8Z-YP5-611-010 CORD ASSY,USB 1.5M
2 8Z-YP5-901-010 IB,U(3L)<UW>
2 8Z-YP5-902-010 IB,D(J)<D<S>>

19
ELECTRICAL SECTION
DESCRIPTION REFERENCE NAME
ANT ANTENNAS
C- CHIP
C-CAP CAP, CHIP
C-CAP TN CAP, CHIP TANTALUM
C-COIL COIL, CHIP
C-DI DIODE, CHIP
C-DIODE DIODE, CHIP
C-FET FET, CHIP
C-FOTR FILTER, CHIP
C-JACK JACK, CHIP
C-LED LED, CHIP
C-RES RES, CHIP
C-SFR SFR, CHIP
C-SLIDE SW SLIDE SWITCH, CHIP
C-SW SWITCH, CHIP
C-TR TRANSISTOR, CHIP
C-VR VOLUME, CHIP
C-ZENER ZENER, CHIP
CAP, CER CAP, CERA-SOL
CAP, E CAP, ELECT
CAP, M/F CAP, FILM
CAP, TC CAP, CERA-SOL
CAP, TC-U CAP, CERA-SOL SS
CAP, TN CAP, TANTALUM
CERA FIL FILTER, CERAMIC
CF FILTER, CERAMIC
DL DELAY LINE
E/CAP CAP, ELECT
FILT FILTER
FLTR FILTER
FUSE RES RES, FUSE
MOT MOTOR
P-DIODE PHOTO DIODE
P-SNSR PHOTO SENSER
P-TR PHOTO TRANSISTOR
POLY VARI VARIABLE CAPACITOR
PPCAP CAP, PP
PT POWER TRANSFORMER
PTR, RES PTR, MELF
RC REMOTE CONTROLLER
RES NF RES, NON-FLAMMABLE
RESO RESONATOR
SHLD SHIELD
SOL SOLENOID
SPKR SPEAKER
SW, LVR SWITCH, LEVER
SW, RTRY SWITCH, ROTARY
SW, SL SWITCH, SLIDE
TC CAP CAP, CERA-SOL
THMS THERMISTOR
TR TRANSISTOR
TRIMMER CAP, TRIMMER
TUN-CAP VARIABLE CAPACITOR
VIB, CER RESONATOR, CERAMIC
VIB, XTAL RESONATOR, CRYSTAL
VR VOLUME
ZENER DIODE, ZENER
REFERENCE NAME LIST MECHANICAL SECTION
DESCRIPTION REFERENCE NAME
ADHESHIVE SHEET ADHESHIVE
AZ AZIMUTH
BAR-ANT BAR-ANTENNA
BAT BATTERY
BATT BATTERY
BRG BEARING
BTN BUTTON
CAB CABINET
CASS CASSETTE
CHAS CHASSIS
CLR COLLAR
CONT CONTROL
CRSR CURSOR
CU CUSHION
CUSH CUSHION
DIR DIRECTION
DUBB DUBBING
FL FRONT LOADING
FLY-WHL FLYWHEEL
FR FRONT
FUN FUNCTION
G-CU G-CUSHION
HDL HANDOL
HIMERON CLOTH
HINGE, BAT HINGE, BATTERY
HLDR HOLDER
HT-SINK HEAT SINK
IB INSTRUCTION BOOKLET
IDLE IDLER
IND, L-R INDICATOR, L-R
KEY, CONT KEY, CONTROL
KEY, PRGM KEY, PROGRAM
KNOB, SL KNOB, SLIDE
LBL LABEL
LID, BATT LID, BATTERY
LID, CASS LID, CASSETTE
LVR LEVER
P-SP P-SPRING
PANEL, CONT PANEL, CONTROL
PANEL, FR PANEL, FRONT
PRGM PROGRAM
PULLY, LOAD MO PULLY, LOAD MOTOR
RBN RIBBON
S- SPECIAL
SEG SEGMENT
SH SHEET
SHLD-SH SHIELD-SHEET
SL SLIDE
SP SPRING
SP-SCREW SPECIAL-SCREW
SPACER, BAT SPACER, BATTERY
SPR SPRING
SPR-P P-SPRING
SPR-PC-PUSH P-SPRING, C-PUSH
T-SP T-SPRING
TERM TERMINAL
TRIG TRIGGER
TUN TUNING
VOL VOLUME
W WASHER
WHL WHEEL
WORM-WHL WORM-WHEEL

931196 Printed in Singapore
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