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UX-A52R
JVC UX-A52R Service Manual
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1-45
UX-A52R
REG1
REG2
REG3
O
VER
CURRENT
CHECK
ENABLE
CONTROL
THERMAL
SHUTDOWN
REFERENCE
GENERA
TOR
REG1
REG2
REG3
REF
REF+20%
6
7
9
5
4
8
11
10
14
15
1
2
3,13
VINA
VINB
VO
1
FB1
VO
2
FB2
VO
3
FB3
GND
TRIG
OC
EN1
EN2
EN3
1
2
34
56
78
9
1
0
1
1
1
2
1
3
1
4
1
5
Pin No
.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Symbol
FB1
VO
1
VINA
TRIG
OC
EN1
EN2
GND
EN3
FB3
VO
3
N.C
.
VINB
VO
2
FB2
Function
REG1 f
eedback v
oltage input
REG1 output v
oltage
Input DC supply voltage
T
r
igger f
or e
xternal SCR (crowbar protection)
Over current w
arning output
REG1 enable input
REG2 enable input
Analog ground
REG3 enable input
REG3 f
eedback v
oltage input
REG3 output v
oltage
Not connected
Input DC supply voltage
REG2 output v
oltage
REG2 f
eedback v
oltage input
L4909 (IC802) :
Regulator
1.
Pin lay
out
2.
Block diagr
am
3.
Pin functions
44
46
Table of Contents
Service Manual
1
Table of Contents
1
Preventing Static Electricity
4
Important for Laser Products
5
Disassembly Method
6
Adjustment Method
25
Maintenance of Laser Pickup
30
Replacement of Laser Pickup
30
Description of Major Ics 1-31~49
31
Table of Contents
57
Location of the Buttons
58
Main Unit
58
Remote Control
60
Getting Started
61
Putting the Batteries into the Remote Control
61
Unpacking
61
Connecting Antennas
62
Connecting Speakers
63
Connecting Other Equipment
64
Basic and Common Operations
65
Selecting the Sources and Starting Play
66
Turning on the Power
66
Adjusting the Volume
67
Reinforcing the Bass Sound
67
Selecting the Sound Modes
67
Turning On/Off the Key-Touch Tone
67
Setting the Display Illumination
68
Listening to FM and am (MW/LW) Broadcasts
69
Presetting Stations
70
Tuning in a Station
70
Changing the RDS Information
71
Receiving FM Stations with RDS
71
Searching for Programs by PTY Codes (PTY Search)
71
Tuning in a Preset Station
71
Switching to a Program Type of Your Choice Temporarily
72
How the Enhanced Other Networks Function Actually Works
73
Description of the PTY Codes
74
Playing Back a CD
75
Playing Back the Entire CD-Normal Play
76
Precautions on CD Playback
76
Basic CD Operations
77
Programing the Playing Order of the Tracks -Program Play
78
Playing at Random-Random Play
79
Repeating Tracks-Repeat Play
79
Playing Back a Tape
80
Playing Back a Tape
81
Using External Equipment
82
Listening to External Equipment
83
Recording from this Unit to External Equipment
83
Recording on Tapes
84
Before You Start Recording
85
Recording CD-CD Synchronized Recording
86
Recording FM/AM (MW/LW) Broadcasts
86
Recording External Equipment
87
Using the Timers
88
Setting the Clock
89
Using Recording Timer
89
Using Daily Timer
90
Timer Priority
92
Using Sleep Timer
92
Maintenance
93
Troubleshooting
94
Specifications
95
Parts List
107
Cassette Mechanism Assembly and Parts List (Block No.mp)
112
CD Mechanism Assembly and Parts List (Block No.mb)
114
Electrical Parts List (Block No.01~04)
117
Packing Materials and Accessories Parts List (Block No.m3,M5)
126
Parts List
127
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Instructions
45 pages
4
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JVC UX-A52R Specifications
General
Brand
JVC
Model
UX-A52R
Category
Stereo System
Language
English
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