Text preview for : service.pdf part of Philips service Philips Audio BTM1180 service.pdf
Back to : service.pdf | Home
Micro Hi-Fi system BTM1180/ All
Service
Service Manual
TABLE OF CONTENTS
Page
location of pcb boards and version vanation......................................1
Technical specification.................................................................2-3
Safety instruction...........................................................................4
ESD protection...............................................................................5
Safty precautions...........................................................................6
Set Block diagram.......................................................................7-8
Set wining diagram.........................................................................9
Disassembly diagram....................................................................10
Main board
Circuit diagram..................................................................11-14
Layout board.....................................................................15-16
Display board
Circuit diagram..................................................................17-18
Layout board.....................................................................19-20
Mechanical Exploded view............................................................21
1
Location Of PCB Boards And Version Vanation
Display Board
Main Board
VERSION VARIATION
Type /Versions: BTM1180
/05 /12 /37
Board in used: Service policy (GREAT BRITAIN) (EUROPE) (UL)
Main BOARD C/M C C
Display BOARD C/M C C
Type /Versions:
BTM1180
Features Feature diffrence /05 /12 /37
RDS
VOLTAGE SELECTOR
ECO STANDBY - DARK
* TIPS : C -- Component Lever Repair.
M -- Module Lever Repair
-- Used
2
Technical Specification
BTM1180 Elec parameter Test Report
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 18 22 18 18
2 26dB QUENTING SENSITIVITY 98 dBf 18 22 17 19
106 18 22 18 18
3 -3dB LIMITING POINT dBf 17 25 15 16
4 FM IF REJECTION 98MHZ S/N=26dB dB 55 50 >55 >55
5 IMAGE REJECT 98MHZ S/N=26dB dB 24 20 >24 >24
6 SELECTIVITY S 0.3 dB 40 33 / /
MONO 55 50 68 68
7 S/N
ST 55 50 / /
8 OVERALL DISTERTION % 3 5 0.2 0.2
9 MODULATION HUM dB 45 40 56 53
63Hz