Daewoo TR-654AG User manual

Service Manual
TR-654AG
DAEWOO ELECTRONICS E
UROPE.GmbH

CONTENTS
1.PRODUCT DESCRIPTION....................................2
.................................. 3 6
~
2.PRODUCT SPECIFICATION
3.SCHEMATIC DIAGRAM...................................... 7~ 13
.............................................14~16
4.PCB DRAWING
5.EXPLODED VIEW........................................... 17
6.PART LIST.................................................18 ~26

PRODUCT DESCRIPTION
FEATURES:
- TOP LOADING CD PLAYER WITH PROGRAMMABLE CD MEMORIES
- CD/CD-R/MP3 DISC COMPATIBLE
- AM/FM/FM STEREO ANALOGUE TUNING RADIO
- AUTO-STOP CASSETTE RECORDER WITH ONE TOUCH RECORDING
- AUTOMATIC LEVEL CONTROL FOR RECORDING
- STEREO HEADPHONE JACK
- DBBS BASS BOOST SYSTEM
- SOFT EJECT CASSETTE DOOR
- OUTPUT POWER:4W×2RMS
- TELESCOPIC ANTENNA
- REMOTE CONTROL FOR CD/MP3
SPECIFICATION:
- POWER SUPPLY:AC127/60Hz
- DIMENSIONS:MAIN UNIT:136(L)X174(W)X225(H)mm
2

TEST CONDITION:
NO. FREQ/TAPE UNIT NORMAL LIMIT
KHZ520 十／－１５
KHZ1630 十／－２０
２KHZ４５５ 十／－５
600KHZKHZ/ /
1000KHZKHZ/ /
1400KHZKHZ / /
600KHZdB/M ５０ ６０
1000KHZdB/M ５０ ６０
1400KHZdB/M ５０ ６０
600KHZdB/M ５５ ６８
1000KHZdB/M ５５ 68
1400KHZdB/M ５５ 68
61000KHZdB ３５ ３０
81000KHZdB ２０ 10
600KHZdB ３９ ３０
1000KHZdB
1400KHZdB
１０ 1400KHZdB ３５ ２５
１１ A .G .C figur of merit @ 100mV 1000KHZdB 38 30
１２ 1000KHZ%4 8
１３ 1000KHZ%２ ５
１４ 1000KHZmV 4 8
１５ FEDELITY-6dB @5AMV HZ80-3000 150-2200
１７ WHISTLE(5mV/M) @2ND KHZ%/ /
@3RD KHZ%/ /
１８ VR.MAX.DISTORTION %25
１６ POWER OUTPUT@10% T.H.D 1000KHZW２．８ ２．５
１９ MAX OUTPUT POWER 1000KHZW３．５ ２．８
９IF REJECTION
3.REFERENCE OUTPUT:50mw
4.RESISTIVE LOAD:4 OHM
１FRERQUENCY RANGE
３DIAL DEVIATION
1.POWER SUPPLY VOLTAGE:AC 127V,60HZ
2.STANDARD MODULATION:1000HZ,30%MOD
PRODUCT SPECIFICATION
INTERMEDIATE FREQUENCY
HUM/NOISE OUTPUT @VOL.MIN
DISTORTION 30% MOD 74dB INPUT
5USEADLE SENSITIVITY 20dB S/N
ACA 10KHZ
OVERLOAD DISTORTION@100mV 80% MOD
IMAGE REJECTION
TEST ITEMS
AM FM TAPE VCD MAX OUTPUT POWER MODEL:TR-654AG
S/N RATIO @5mV
４MAX SENSITIVITY
3

PRODUCT SPECIFICATION
TEST CONDITION:
1.POWER SUPPLY VOLTAGE:AC 127V,60HZ
2.STANDARD MODULATION:1000HZ,22.5KHZ Deviation(MPX75KHZ DEV)
3.REFERENCE OUTPUT:50mw
4.RESISTIVE LOAD:4 OHM
5.L+R=45%, L-R=45%, PILOT=10%
NO.
TEST ITEMS
FREQ UNIT NORMAL LIMIT
TUNING RANGE MHZ87.5 十／－０．５
MHZ108.5 十／－０．５
２INTERMEDIATE FREQUENCY MHZ１０．７ 十／－０．３
DIAL CALIBRATION 88MHZKHZ／ ／
100MHZKHZ／ ／
106MHZKHZ/／
MAX SENSITIVITY 90MHZdB 15 24
98MHZdB 15 24
106MHZdB 15 24
USEADLE SENSITIVITY 30dB S/N 90MHZdB ２０ ２６
98MHZdB １９ 26
106MHZdB １９ 26
6S/N RATIO @1mV 98MHZdB ３８ ３０
7HUM MODULATION 100dB INPUT 98MHZdB / /
8(-3dB)LIMITING SENSITIVITV 98MHZdB ２４ 30
９AFC HOLDING RANGE -3dB 98MHZKHZ/ /
１０ IF REJECTION 90MHZdB ５５ ４０
１１ IMAGE REJECTION 106MHZdB ２８ ２０
１２ AM SUPPRESSION AT 60dB INPIT 98MHZdB ３８ ３０
１３ 98MHZdB /
１４ 98MHZ%1 3
１５ mV ５ １０
１６ FREQ.RESPONSE -6dB 50us PRE-AMP HZ80-5.5K 150-3K
SEPARATION 100HZdB / /
1KHZdB ３０ ２２
10KHZdB / /
１８ 98MHZW２．８ ２．５
１９ 98MHZW３．５ ２．８
２０ dB １８ ３０
５
１７
３
４
１
STEREO INDICATOR SENSTIVITY
MAX OUTPUT POWER
POW OUTPUT @ 10% T.H.D
T.H.D.22.5KHZAT 60dB INPUT
HUM/NOISE OUTPUT @VOL.MIN.
OVERLOAD CAPACITY 75KHZ DEV
FUNCTION:FM MODEL:TR-654AG
4