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Micro System BTM3160/12
TABLE OF CONTENTS
Chapter
Location of PC Boards ......................................................1-1
Versions Variation ..............................................................1--2
Technical Specications ......................................................2
Set Block Diagram.................................................................33
Set Wiring Diagram ...............................................................44
Disassembly Diagram ...........................................................55
Main Board
Circuit Diagram ..................................................................6-1
Layout Diagram..................................................................6-2
SMPS Board
Circuit Diagram...................................................................7-1
Layout Diagram..................................................................7-22
Display Board
Circuit Diagram..................................................................8-1
Layout Diagram ................................................................8-28-2
Mechanical Exploded View ....................................................9
Revision list ..........................................................................10
Published by Kelly & Xu wk1352 Subject to modification 3140 038 61320
1-1.Location of PC Board
47
5
7
1-2.Versions Variation
Type/Version BTM3160
/12
Board in used Service Policy
(EU)
Main board M
SMPS board M
Display board M
Tips: C--Component Level Repair
M--Module Level Rpair
2.T2.Technical Specications
module:BTM3160
TEST CONDITIONS:
1.POWER SUPPLY: AC.Accordiing to Ver
2.REF OUTPUT: 6 1W , Sound effect off
3.FM MONO: 22.5KHz Dev,1KHz MODULATION ,75 IMPEDANCE ,60dBu
4.FM STEREO : MAIN+SUB = 50KHz, PILOT : 10KHz,COMPOSITE: 40.0KHz
FM SECTION
TEST DATA
NO TEST ITEMS UNIT NOM. LIMIT
1# 2#
87.5 87.5 87.5
1 Fvequency Range MHz
108 108 108
90.1 16 22 16 16
2 26dB QUENTING SENSITIVITY 98.1 dBf 16 22 16 15
106.1 16 22 16 16
3 -3dB LIMITING POINT dBf 20 26 12 12
3 FM IF REJECTION 98MHZ S/N=26dB dB 65 60 110 110
4 IMAGE REJECT 98MHZ S/N=26dB dB 40 25 110 110
MONO 50 45 68 69
5 S/N Db
ST 50 45 64 64
6 OVERALL DISTERTION % 2 5 0.2 0.2
7 MODULATION HUM dB 50 45 57 57
90.1MHz dBf _ 16-36 20 20
9 TUNING SENS 98.1MHz dBf _ 16-36 20 20
106.1MHz dBf _ 16-36 20 20
10 STREO CHANNEL SEPARATION 1KHz dB 25 18 39 38
11 THD 10% POWER 1KHz W _ 6