Goodmans GCR300 User manual

Service Manual - GCR300
GCR300
Service Manual - GCR300

STEP
CONNECT OUTPUT
OF TEST
EQUIPMENT
CONNECT INPUT
OF TEST
EQUIPMENT
SIGNAL
MARRER
FREQUENCY
SET RADIO
DIAL TO ADJUST ADJUST FOR
1
FM IF SWEEP
GENESCOPE TO
TIP4
AND
GND
FM IF SWEEP
GENESCOPE TO
GROUND AND
TIP3
10.7 MHz LOW-END
FREQUENCY T5/T1
FOR MAX
SYMMETRICAL
AND LINDAR"S"
CURVE AT 10.7MHz
2
3
4 90 MHz 90 MHz
5 106 MHz 106 MHz
6
L4
VC1-B
L2
VC1-A
MAX PEAX AT
CORRESPONDTNG
MARKER
FREQUENCY
REPEAT STEP 4 AND 5
FM ALIGNMENT PROCEDURE
SET BAND SWITCH TO RADIO MANUAL. VOLUME AT MINTMUM.BAND SW. IM"FM"POSITION.
FM RF SWEEP
GENESCOPE TO
TIP4
AND
GND
FM RF SWEEP
GENESCOPE TO
GROUND AND
TIP1/AND GND
87.5
MHz
108.5
MHz
LOW-END
PREQUENCY
HIGH-END
FREQYENCY

STEP
CONNECT OUTPUT
OF TEST
EQUIPMENT
CONNECT INPUT
OF TEST
EQUIPMENT
SIGNAL
MARRER
FREQUENCY
SET RADIO
DIAL TO ADJUST ADJUST FDR
1
AM IF SWEEP
GENESCOPE
TIP4/GND
AM IF SWEEP
GENESCOPE
VLALOOP
ANT1
465
KHz
LOW-END
FREQUENCY T3/T4
MAX-PEAE AT
MARKER FREQUENCY
465 KHz
2
3
4 600 KHz 600 KHz
5 1400 KHz 1400 KHz
6
REPEAT STEP 4 AND 5
SET EAND TO RADIO MANUAL ON,VOLUME AT MINTMUM,EAND SW.IN"MW"POSTTION.
AM RF SWEEP
GENESCOPE
TIP4/GND
AM RF SWEEP
GENESCOPE TO
VLALOOP
L7/AM ANT
520
KHz
1640
KHz
LOW-END
PREQUENCY
HIGH-END
FREQYENCY
T2
VC1-D
AMCOILL
VC1-C
MAX PEAX AT
CORRESPONDLNG
MARKER
FREQUENCY
AM ALIGNMENT PROCEDURE

Shipping Schedule
JS043468
TOTAL ORDER FM Q 88-108MHZ
7360 FM AUTO SCAN
Use Total Purchase UNIT PRICE TOTAL
PCB 190 X 93 X 1.6MM CT-130 1 7.360 1,3700 1,3700
I.C CD7613 9 PCHINA) 1 7.360 0,6800 0,6800
TRANSISTOR 9018G 2 14.720 0,0770 0,1540
TRANSISTOR 9014C 2 14.720 0,0440 0,0880
DIODE IN4148 1 7.360 0,0260 0,0260
ZENER DIODE 1/2W 6.2V 2 14.720 0,0620 0,1240
DIODE IN4001 4 29.440 0,0235 0,0940
AM COIL 120 Q 20T M3/4 WIRE L=100M
M
1 7.360 0,1000 0,1000
AM BAR 5 X 12 X 55MM 1 7.360 0,1100 0,1100
TRANSFORMER VDE APP'D 230V 50Hz 1 7.360 3,7500 3,7500
5O FT VDE APP'D CORDSET 1 7.360 1,6700 1,6700
BEAD COIL 3.5 X 3 X 1.3 #0.21 1 7.360 0,0400 0,0400
SPEAKER 3O 8 OHM 1W HEAD=45MM 1 7.360 1,0300 1,0300
SPEAKER GRILL PGREY) 1 7.360 1,1200 1,1200
ROD ANTENNA 6158B P360 DEGREES) 1 7.360 0,8400 0,8400
BATTERY PLATE P+) #128 1 7.360 0,0500 0,0500
BATTERY PLATE P-) #128 1 7.360 0,1000 0,1000
P.V.C. 20 X 20 MM 1 7.360 0,6100 0,6100
AM126PF,FM 20PF X 2 P443) 0,0000
JACK EJ-3503 1 7.360 0,0750 0,0750
VOLUME R1616NI L=12.5MM 1 7.360 0,4400 0,4400
SWITCH SK-22F03 M11 SAME AS #130 1 7.360 0,1100 0,1100
SWITCH SK-62H01 M8 SAME AS #130 1 7.360 0,2500 0,2500
SWITCH PS-62D01 SAME AS #1 1 7.360 0,1500 0,1500
VDE APPD' SOCKET TC-08-115-02 1 7.360 0,5800 0,5800
MIC D=9.7 * 6.7 65db 1 7.360 0,2000 0,2000
DECK TM-21UC/AD-6B PMONO) 1 7.360 6,9000 6,9000
SPONGE 10 X 10 X 8 MM 2 14.720 0,0035 0,0070
FM COIL 4.5 X 3.5T X 0.7 1 7.360 0,0130 0,0130
FM COIL 3.5 X 4.5T X 0.5 1 7.360 0,0090 0,0090
FM COIL 3.5 X 2.5T X 0.5 1 7.360 0,0090 0,0090
FM COIL 3 X 19.5T X 0.5 3 22.080 0,0170 0,0510

CHOKE COIL 15 UH 2 14.720 0,0400 0,0800
IFT 10MM ORANGE SAME AS #309 1 7.360 0,1700 0,1700
IFT 10MM RED SAME AS #3 1 7.360 0,1600 0,1600
IFT 10MM YELLOW SAME AS #309 1 7.360 0,1700 0,1700
IFT 10MM WHITE SAME AS #309 1 7.360 0,1700 0,1700
IFT 10MM PINK SAME AS # 1 7.360 0,1700 0,1700
BARE WIRE L=40MM 14 103.040 0,0060 0,0840
EYELET 2 X 4 MM 13 95.680 0,0033 0,0429
SPEAKER CLIP #130 2 14.720 0,0200 0,0400
RECORDER PLATE PSTAINLESS) 1 7.360 0,1500 0,1500
CASS DOOR SPRING SAME AS #130 1 7.360 0,0380 0,0380
CABLE TIE 100MM 3 22.080 0,0105 0,0315
RESISTOR 1/4W 10 2 14.720 0,0048 0,0096
RESISTOR 1/4W 100 4 29.440 0,0048 0,0192
RESISTOR 1/4W 470 1 7.360 0,0048 0,0048
RESISTOR 1/4W 1K 7 51.520 0,0048 0,0336
RESISTOR 1/4W 1.2K 1 7.360 0,0048 0,0048
RESISTOR 1/4W 1.5K 3 22.080 0,0048 0,0144
RESISTOR 1/4W 2.2K 3 22.080 0,0048 0,0144
RESISTOR 1/4W 3.3K 3 22.080 0,0048 0,0144
RESISTOR 1/4W 4.7K 2 14.720 0,0048 0,0096
RESISTOR 1/4W 10K 1 7.360 0,0048 0,0048
RESISTOR 1/4W 15K 1 7.360 0,0048 0,0048
RESISTOR 1/4W 22K 2 14.720 0,0048 0,0096
RESISTOR 1/4W 33K 2 14.720 0,0048 0,0096
RESISTOR 1/4W 47K 2 14.720 0,0048 0,0096
RESISTOR 1/4W 82K 3 22.080 0,0048 0,0144
RESISTOR 1/4W 100K 2 14.720 0,0048 0,0096
RESISTOR 1/4W 220K 2 14.720 0,0048 0,0096
RESISTOR 1/4W 560K 1 7.360 0,0048 0,0048
RESISTOR 1/8W 2.2K 1 7.360 0,0048 0,0048
C.CAP 1 7.360 0,0054 0,0054
C.CAP 1 7.360 0,0054 0,0054
C.CAP 1 7.360 0,0054 0,0054
C.CAP 2 1 7.360 0,0054 0,0054
C.CAP 2 1 7.360 0,0054 0,0054
C.CAP 3 5 36.800 0,0054 0,0270
C.CAP 100 2 14.720 0,0054 0,0108
C.CAP 220 1 7.360 0,0054 0,0054
C.CAP 331 1 7.360 0,0054 0,0054

C.CAP 0.001 1 7.360 0,0054 0,0054
C.CAP 0.002 1 7.360 0,0054 0,0054
C.CAP 222 1 7.360 0,0054 0,0054
C.CAP 0.005 3 22.080 0,0054 0,0162
MYLAR CAP 2A473K P0.047 UF) 1 7.360 0,0500 0,0500
C.CAP 0.01 1 7.360 0,0054 0,0054
C.CAP 0.02 16 117.760 0,0067 0,1072
C.CAP 0. 3 22.080 0,0098 0,0294
E.CAP 1 UF / 16 1 7.360 0,0240 0,0240
E.CAP 4.7 UF / 16
V
1 7.360 0,0240 0,0240
E.CAP 47 UF / 16
V
2 14.720 0,0250 0,0500
E.CAP 100 UF / 16V 3 22.080 0,0320 0,0960
E.CAP 220 UF / 16V 4 29.440 0,0420 0,1680
E.CAP 470 UF / 16V 1 7.360 0,0770 0,0770
E.CAP 1000 UF / 16V 1 7.360 0,1100 0,1100
E.CAP 2200 UF / 16V 1 7.360 0,2200 0,2200
SHIELD WIRE P1C) L=130MM 2 14.720 0,0730 0,1460
PVC WIRE #26 L=90MM YELLOW 2 14.720 0,0043 0,0086
PVC WIRE #26 L=250MM RED 1 7.360 0,0100 0,0100
PVC WIRE #26 L=80MM RED 1 7.360 0,0040 0,0040
PVC WIRE #26 L=80MM BROWN 1 7.360 0,0040 0,0040
PVC WIRE #26 L=80MM BLUE 1 7.360 0,0040 0,0040
PVC WIRE #26 L=350MM YELLOW 1 7.360 0,0136 0,0136
PVC WIRE #26 L=350MM WHITE 1 7.360 0,0136 0,0136
PVC WIRE #26 L=150MM RED 1 7.360 0,0065 0,0065
PVC WIRE #26 L=150MM BLACK 2 14.720 0,0065 0,0130
PVC WIRE #26 L=100MM ORANGE 1 7.360 0,0046 0,0046
PAD CORD 13 X 53 X 10MM PH) 1 7.360 0,0350 0,0350
SCREW 2.6 X 8 PWA 4 29.440 0,0060 0,0240
SCREW 2.6 X 8 PA 9 66.240 0,0045 0,0405
SCREW 3 X 12 PA 5 36.800 0,0075 0,0375
SCREW 2.6 X 12 PWA 2 14.720 0,0070 0,0140
SCREW 2.6 X 14 PA 2 14.720 0,0062 0,0124
SCREW 3 X 8 PA 3 22.080 0,0050 0,0150
SCREW 2.6 X 6 PM 1 7.360 0,0039 0,0039
SCREW 3 X 6 PM 1 7.360 0,0056 0,0056
SCREW 2.6 X 4 KM 2 14.720 0,0033 0,0066
SCREW 2.3 X 8 PA 2 14.720 0,0040 0,0080
PLASTIC SET 1 7.360 9,0200 9,0200
BATTERY DOOR LABEL 1 7.360 0,0120 0,0120
QC PASSED LABEL - SMALL 1 7.360 0,0050 0,0050
RATING PLATE - GCR-300 1 7.360 0,0800 0,0800
SERIAL NO.LABEL - 1 7.360 0,0180 0,0180
DATE CODE LABEL - 104 1 7.360 0,0050 0,0050

BATTERY LABEL - LR20 x 4 1 7.360 0,0050 0,0050
AC LABEL - AC230V~50Hz 1 7.360 0,0050 0,0050
CAUTION LABEL 1 7.360 0,0140 0,0140
AC PLUG 1 7.360 0,0120 0,0120
FUSE D125C LABEL 1 7.360 0,0000 0,0000
INSTRUCTION SGEET - GCR-300 1 7.360 0,6200 0,6200
WARRANTY CARD - GOODMANS 1 7.360 0,1900 0,1900
GIFT BOX - GOODMANS 1 7.360 1,4200 1,4200
POLYBAG 3.5 X 10.5O 1 7.360 0,0230 0,0230
POLYBAG 10.5 X 17O 1 7.360 0,1050 0,1050
WEIGHT LABEL 10 735 0,0050 0,0050
POLYFOAM 1 7.360 1,2000 1,2000
INNER BOX 5 1.470 0,3700 0,3700
CARTON 10 735 0,4160 0,4160
SPRAY 1 7.360 2,2000 2,2000
SILK 1 7.360 0,1750 0,1750
ASSEMBLY 1 7.360 4,5000 4,5000
TRANSPORTATION 1 7.360 3,0000 3,0000
HKD 47,1622
U
SD 6,0464

Measuringitems Condion Unit Normal Limit Data(1)
Low End KHZ 520 ±10 523
High End KHZ 1650 ±20 1649
Intermediate Frequency KHZ 465 ±5 465
600KHZ dB/M 56 50
1000KHZ dB/M 56 53
1400KHZ dB/M 56 52
600KHZ dB/M 63 58
1000KHZ dB/M 63 59
1400KHZ dB/M 63 57
IF Rejection 600KHZ dB 45 40 45
Image Rejection 1400KHZ dB 35 30 40
Distortion at Standard Output 1000KHZ % 83
Mod 30% %
Mod 80% % 85
10%THD Output Power at 80%Mod 1000KHZ mw 350 300 380
Mod 30% %
Mod 80% % 10 28 26
Low Frequency HZ 100 125 66
High Frequency HZ 3500 2500 5000
Bandwidth 6dB 1000KHZ KHZ 411 7
S/N Radio at 5mv/M Input 1000KHZ dB 35 30 41
Modulation Hum 1000KHZ dB 40 30 33
Max volume mv 300 100
Min volume mv <8 5
Fail Out Voltage (AC) 1000KHZ % <70 <70
Fail Out Voltage (DC) 1000KHZ % <70 <70
PRODUCTION SPECIFICATION
SUPPLY VOLTAGR:6.0V AC220V50HZ STANDARD POWER OUTPUT:50mw
MODULATION :1KHZ 30% SPEAKER IMPEDANCE: 8 OHM REV:1
Max Sensitivity
20dB Quieting S/N Sensitivity
Tuning Frequency Range
RF Overload Distortion at 100dB/M
Distortion at Maximum Volume all Controls at
Max
6dB Audio Fidelity
Noise Output (Hum and noise)

Measuringitems Condion Unit Normal Limit Data(1)
Tuning Frequency Range Low End MHZ 87,5 ±0.5 87,2
High End MHZ 108,25 ±0.5 108,5
Intermediate Frequency MHZ 10,7 ±0.35 10,7
90 dB 22 16
98 dB 22 15
106 dB 22 15
90 dB 30 23
98 dB 30 23
106 dB 30 21
IF Rejection 90MHZ dB 40 35 44
Image Rejection 106MHZ dB 45 30 40
AM Rejection 98MHZ dB 40 30 60
Distortion at Standard Output 98MHZ % 52
Mod 22.5KHZ %
Mod 75KHZ % 83
10%THD Output Power at 75KHZ Dev 98MHZ mw 350 300 400
Distortion at Maximum Volume 75KHZ Dev 98MHZ % 15 30 26
Low Frequency HZ 100 125 60
High Frequency HZ 5000 4500 6500
3dB Limiting Sensitivity 98MHZ dB 30 35 30
Modulation Hum 98MHZ dB 40 30 35
Max volume mv 300 80
Min volume mv <8 3
Fail Out Voltage (AC) 98MHZ % <70 <70
Fail Out Voltage (DC) 98MHZ % <70 <70
MODULATION :1KHZ 22.5KHZ SPEAKER IMPEDANCE: 8 OHM REV:1
Max Sensitivity
30dB Quieting S/N Sensitivity
RF Overload Distortion 100dB,75KHZ Dev
6dB Audio Fidelity
Noise Output
PRODUCTION SPECIFICATION
SUPPLY VOLTAGR:6.0V AC220V50HZ STANDARD POWER OUTPUT:50mw

Measuring items Condion Unit Normal Limit Data(1)
Max Output Power 1k 0dB mw 500 450 600
10%Distortion Output Power mw 350 300 360
125Hz dB ±2±6-5
6.3KHz dB ±2±6-2
Distortion at Standard Output % 1 3 1,5
tape speed (3kHZ) MTT-111NS HZ +3/-2 3030
Wow And Flutter MTT-111NS % 0,35% 0,20%
S/Nratlo (Piay) dB 30 35
Max mv 30 22
Min mv 10 8
SPEAKER IMPEDANCE: 8 OHM REV:1
Frequency Response MTT-257 ( 1K=0dB)
Hum and Nolse
PRODUCTION SPECIFICATION
SUPPLY VOLTAGR:6.0V AC220V50HZ STANDARD POWER OUTPUT:50mw