Roadstar HRA-1000 User manual

Service Manual - HRA-1000
R
HRA-1000
Service Manual - HRA-1000

INDEX
1.WARNING AND TECHNICAL SPECIFICATION 0
2.ALIGNMENT 4
3.BLOCK DIAGRAM 5-6
4.FUNCTION DIAGRAM 7
5.SPECIFICATION 8
6.VOLTAGE CHARTS 9-10
7.TROUBLESHOOTING GUIDE 11
8.DISASSEMBLY INSTRUCTION 12
9.EXPLOSION DIAGRAM AND BOM 13
10.WIRING DIAGRAM 14
11.PRINCIPLE DIAGRAM 15
12.REPAIR DIAGRAM 16
13.MATERIAL BILL OF APPLIANCE 17
TITLE: INDEX
2

WARNING:
FOR CONTINUED SAFETY THE FOLLOWING PRECAUTIONS SHOULD BE FOLLOWED
DURING SERVICING.
1.MAKE SURE POWER CORD IS DISCONNECTED BEFORE REPLACING ANY PARTS.
2.REPLACE THE PRODUCT'S TYPE AND CRITICAL PARTS AS SHOWN IN THIS DIAGRAM.
3.THE FOLLOWING TEST MUST BE IMPLEMENTED AFTER EACH REPAIR BEFORE
RETURNING IT TO CUSTOMER. USE AN OHM-METER TO MEASURE THE F.C.
RESISTANCE FROM BOTH A.C. CONDUCTORS TO ANY EXPOSED METALLIC PART
SUCH AS A SCREW HEAD. METAL INLAYS ETC. THE RESISTANCE SHOULD
BE MEASURED 10 MEGAOHMS MINIMUM.
TECHNICAL SPECIFICATION
Power output :3 Watts RMS per channel NOTE:
into 8 ohms In keeping with our policy of continually
Frequency response :60 Hz-12 KHz improving our service and technical
quality of our products we reserve the right
to change component type, quality and
TUNER SECTION technical specification at any time.
FM Section :88 MHz-108 MHz
AM Section :540 KHz-1600 KHZ
TITLE: WARNING AND
TECHNICAL SPECIFICATION
MODEL:HRA-1000
3

INSTRUMENTS REQUIRED: AM&FM Signal generator
AC CTVM Oscilloscope
AM IF ALIGNMENT
Set output of signal generator no higher than necessary to obtain an output reading.
Slide the function switch to the tuner position and set the band button to select AM.
Set volume control to reference output.
RADIO SETTING ADJUSTMENT REMARKS
GENERATOR
465KHz Tune to 600KHz Scope across T102 Adjust the "U"
400Hz (high end). speaker jack Wave for best &
Modulation maximum output
AM RF ALIGNMENT
SIGNAL RADIO SETTING ADJUSTMENT REMARKS
GENERATOR
540KHz Tune to 540KHz
400Hz (low end). T101
Modulation
1600KHz Tune to 1600KHz
400Hz (high end). PVC-TC1
Modulation
600KHz 600KHz VTVM&SCOPE AM ANT Coil For maximum and
Across Speaker Good output
1400KHz 1400KHz PVC-TC2 For maximum and
Good output
Repeat 4 steps to get the ideal value of FM frequency range &sensitivity
FM RF ALIGNMENT
Connect Signal Generator across antenna terminals.
Press the function button to select the tuner position and the band to FM position.
Adjust Volume control to reference output.
SIGNAL RADIO SETTING
GENERATOR ADJUSTMENT REMARKS
88MHz Tune to 88MHz L103
1000Hz (low end )
modulation
108MHz Tune to 108MHz PVC-TC3
1000Hz (high end ).
90MHz 90MHz VTVM&SCOPE L104 for good & maximum.
Across SPEAKER output
106MHz 106MHz Jack PVC-TC4 for good & maximum.
output
Repeat 4 steps to get the ideal value of FM frequency range &sensitivity
ALIGNMENT PROCEDURES
SIGNAL CONNECTION
TITLE: ALIGNMENT
CONNECTION
CONNECTION
4

TITLE: BLOCK DIAGRAM
5

TITLE: BLOCK DIAGRAM
6

TITLE: FUNCTION DIAGRAM
7

SPECIFICATION
Power source : 230V/50Hz
Load impedance : 8 ohm
Reference output : 50 Mw
AM modulation frequency : 400Hz
MOD
FM modulation frequency : 1KHz
DEV :
BAND:AM
ITEM DESCRIPTION UNIT NOMINAL LIMIT
1 TUNING RANGE KHz 540-1600
2 SENS FOR 20dB S/N 600KHz dB 60 64
1000KHz 60 64
1400KHz 60 64
3 S/N RATIO AT 5MV INPUT 1000KHz dB 35 30
4 IF REJECTION AT600KHz dB 40 35
5 IMAGE REJECTION AT 1400KHz dB 2 35
6 T.H.D. AT5Mv 1000KHz % 60-3K 4
7 WHISTLE IF MODULATION AT5Mv % 510
8 AUDIO FIDELITY -6dB Hz 80-3k 120-2.5k
9 OUTPUT POWER 10% T.H.D(MOD 60%) W 3
10 IF KHz 465 +/-5
BAND:FM
ITEM DESCRIPTION UNIT NOMINAL LIMIT
1 TUNING RANGE KHz 88-108
2 SENS FOR 30dB S/N 90MHz dB 18 26
98MHz 18 26
106MHz 18 26
3 S/N AT INPUT dB 35 30
4 IF REJECTION 90MHz dB 60 50
5 IMAGE REJECTION 106MHz dB 30 20
6 T.H.D 98MHz % 11.5
9 POWER OUTPUT (DEV 45KHz)20% T.H.D W 3
10 IF MHz +/-0.1
TITLE: SPECIFICATION
30%
22.5KH
z
10.7
8

Q403 2SC945 0.7 0 0
Q401 2SC945P 3.8 11.4 3.1
Q402 2SB722 12 12.7 12.7
BCE
TITLE: VOLTAGE CHARTS
9

47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
TITLE: VOLTAGE CHARTS
0
1.5
3
2.6
0
1.1
1.2
1.4
0
0
30
31
32
0
26
27
28
29
22
23
24
25
18
19
20
21
17 1.3
0
00
CXA 1691
00
30
IC U401
UTC2025
6.22
1
PIN
15
14
16
12.6
13
12
11
0
10 09
8 11.6
0
0.5 1.4
0 1.3
6
5 1.3
7
40 00
U101
1.5
2.1
0.5
12.7 0
0
0.5
6.2 1.3
1.3
1.3
1.3
48
49
50
10

Circuit Symptom Reason and Remedy
General No sound 1.Speakers are not connected.
Check the speaker connection
2.Wrong function is selected.
Select the proper function position as desired
3.Defective volume control.
Set the volume control to a proper sound level
. 4.Defective earphone jack.
Replace the earphone jack.
AM No sound ,weak 1.Improper location of unit.
sound. Rotate or reposition the unit.
(Low sensitivity) 2.Defect in T102
Check resistance voltage and current .Replace as needed.
3.Defect AM antenna coil or oscillator coil.
Replace if necessary.
4.Intermediate Frequency tuning is faulty.
Readjust (See"Alignment")
5.RF Tracking is faulty.
Readjust (See"Alignment")
6.Defective IC U101 (CAX1691
7.Poor contact in antenna circuit.
Check resistance and re-soldering.
FM No sound ,weak 1.Fm antenna is not connected.
sound.Low sensitivity Aerial wire at the rear of the unit or extend it as soon as possible
2.Defective band selector switch.
Replace or repair the switch .
3.Defective U 101(CAX1691
Check voltage. Replace it necessary.
4.Intermediate Frequency tuning is faulty.
Readjust(See"Alignment")
Poor contacts or repair as required.
TROUBLE SHOOTING GUIDE
TITLE: TROUBLESHOOTING
GUIDE
11

TITLE: DISASSEMBLY
INSTRUCTION
12

TITLE: EXPLOSION DIAGRAM
AND BOM
13

TITLE: WIRING DIAGRAM
14

TITLE: PRINCIPLE DIAGRAM
15

TITLE: PRINCIPLE DIAGRAM
16

PCB-1195(AM OSC COIL) R411 113-2231252-01 22k 1/8W
T102 102-0000456-94 NA0456 YELLOW 7mm R403.404 113-2281252-01 2.2 1/8W
T101 102-0002374-92 NO2374 RED 7mm R107 113-3331252-01 33k 1/8W
PCB-1195(ANT COIL) R108 113-4721252-01 4.7k 1/8W
103-0012015-00 120:15(120) 3pin
PCA-1195(CER CAP)
PCB-1195(FM COIL) C401 123-1015003-05 100PF/50V
L101.104 104-0845035-00 0.8X4.5X3.5T C108.111 123-1035003-05 0.01uF/50V
L103 104-0850025-00 0.8X5X2.5T C113 123-1035003-05 0.01uF/50V
PCB-1195(RESONATOR) C122.123 123-1045003-06 0.1uF/50V
CF101 107-22107C1-00 SFE(CDA) 10.7MC1 C125 123-1045003-06 0.1uF/50V
CF102 107-310465B-00 SFU465B/HLB465B C110 123-1085003-05 1PF/50V
CF103 107-32107A5-00 SFE(CDA) 10.7MA5/L10.7A C124 123-1415003-05 140PF/50V
PCB-1195(ROTARY VR) C106 123-2205003-05 22PF/50V
VR101 111-5032850-03 R1622N-F28.5-A50K C413.414 123-2235003-05 0.022uF/50V
PCB-1195(RESISTOR) C415.416 123-2235003-05 0.022uF/50V
R109 113-1515092-01 150 1/2W C420 123-2235003-05 0.022uF/50V
PCB-1195(PVC) C105 123-2505003-05 25PF/50V
PVC101 120-2001260-06 LAI-126E20D-15R-L6 C102 123-3905003-05 39PF/50V
PCB-1195(ELEC CAP) C101.103 123-4705003-05 47PF/50V
C412 127-2222502-13 2200uF/25V PCA-1195(MAYLAR CAP)
PCB-1195(DIODE) C118 126-1035003-00 0.01uF/50V
D401.402 130-4004002-00 1N4002 C407.408 126-1045003-00 0.1uF/50V
D403.404 130-4004002-00 1N4002 PCA-1195(ELEC CAP)
LED101.102 130-5B3SWC0-00 5B3SWC D5 BLUE C112.115 127-1002503-05 10uF/25V
PCB-1195(TRANSISTOR) C117.120 127-1002503-05 10uF/25V
Q402 131-2020772-00 2SB772/AV772/HT772/ SP7
7
C403.404 127-1011003-05 100uF/10V
PCB-1195(IC) C406.409 127-1011003-05 100uF/10V
U401 134-0002025-00 UTC2025 C417.418 127-1011003-05 100uF/10V
U101 134-CXA1691-00 CXA1691 C419 127-1011003-05 100uF/10V
PCA-1195(RESISTOR) C119 127-1085003-05 1uF/50V
R105 113-1011252-01 100 1/8W C411 127-2212503-10 220uF/25V
R409 113-1021252-01 1k 1/8W C121 127-4711003-08 470uF/10V
R103 113-1041252-01 100k 1/8W C109.116 127-4785003-05 4.7uF/50V
R102.408 113-1511252-01 150 1/8W C402 127-4785003-05 4.7uF/50V
R412 113-1511252-01 150 1/8W PCA-1195(DIODE)
R410 113-1521252-01 1.5k 1/8W D101.102 130-4104148-02 1N4148
R405 113-2201252-01 22 1/8W ZD401 130-5039802-00 3.9V 0.5W
R407 113-2211252-01 220 1/8W ZD101 130-5051802-00 5.1V 0.5W
R104.406 113-2221252-01 2.2k 1/8W PCA-1195(TRANSISTOR)
Q401.403 131-2030945-00 2SC945P/AV945
DESCRIPTION
REF . NO PART NUMBER DESCRIPTION REF .NO PART NUMBER
TITLE: MATERIAL BILL OF
APPLIANCE
17

PART NO. DESCRIPTION QTY.
101-0412601-00 TRANSFORMER LW412601 230V P=120(BRN) S=150(BLU) 1.0000
102-0000456-94 AM IFT NA0456 YELLOW 7mm 1.0000
102-0002374-92 MW OSC COIL NO2374 RED 7mm 1.0000
103-0012015-00
A
M ANT COIL 120:15(120) 3pin
1.0000
104-0845035-00 FM RF COIL 0.8X4.5X3.5T 2.0000
104-0850025-00 FM OSC COIL 0.8X5X2.5T 1.0000
107-22107C1-00 FILTER SFE(CDA) 10.7MC1 1.0000
107-310465B-00 FILTER SFU465B/HLB465B 3FOOT 1.0000
107-32107A5-00 FILTER SFE(CDA) 10.7MA5/L10.7A 1.0000
111-5032850-03 RO VR R1622N-F28.5-A50K L=28.5 3FOOT 1.0000
113-1011252-01 Resistor 100Ω1/8W +-5% 1.0000
113-1021252-01 Resistor 1k 1/8W +-5% 1.0000
113-1041252-01 Resistor 100k 1/8W +-5% 1.0000
113-1511252-01 Resistor 150Ω1/8W +-5% 3.0000
113-1515092-01 Resistor 150Ω1/2W +-5% 1.0000
113-1521252-01 Resistor 1.5k 1/8W+-5% 1.0000
113-2201252-01 Resistor 22Ω1/8W +-5% 1.0000
113-2211252-01 Resistor 220Ω1/8W +-5% 1.0000
113-2221252-01 Resistor 2.2k 1/8W +-5% 2.0000
113-2231252-01 Resistor 22k 1/8W +-5% 1.0000
113-2281252-01 Resistor 2.2Ω1/8W +-5% 2.0000
113-3331252-01 Resistor 33k 1/8W +-5% 1.0000
113-4721252-01 Resistor 4.7k 1/8W +-5% 1.0000
119-0605000-00 TINNED WIRE 0.6X5.0mm M TYPE 9.0000
119-0610000-00 TINNED WIRE 0.6X10mm M TYPE 4.0000
119-0612500-00 TINNED WIRE 0.6X12.5mm M TYPE 1.0000
119-0622500-00 TINNED WIRE 0.6X22.5mm M TYPE 1.0000
120-2001260-06 PVC LAI-126E20D-15R-L6 1.0000
123-1015003-05 CER. CAP. 100PF/50V +-5%/B 1.0000
123-1035003-05 CER. CAP. 0.01uF/50V +80-20%/B 3.0000
123-1045003-06 CER. CAP. 0.1uF/50V +80-20%/B 3.0000
123-1085003-05 CER. CAP. 1PF/50V +-10%/B NPO 1.0000
123-1415003-05 CER. CAP. 140PF/50V +-5%/B 1.0000
123-2205003-05 CER. CAP. 22PF/50V +-5%/B NPO 1.0000
123-2235003-05 CER. CAP. 0.022uF/50V+80-20%/B 5.0000
123-2505003-05 CER. CAP. 25PF/50V +-5%/B NPO 1.0000
123-3905003-05 CER. CAP. 39PF/50V +-5%/B NPO 1.0000
123-4705003-05 CER. CAP. 47PF/50V +-5%/B 2.0000
126-1035003-00 MYLAR CAP. 0.01uF/50V +-10%/B 1.0000
126-1045003-00 MYLAR CAP. 0.1uF/50V +-10%/B 2.0000
127-1002503-05 ELEC. CAP. 10uF/25V +80-20%/B 4.0000
127-1011003-05 ELEC. CAP. 100uF/10V +80-20%/B 7.0000
127-1085003-05 ELEC. CAP. 1uF/50V +80-20%/B 1.0000
127-2212503-10 ELEC. CAP. 220uF/25V +80-20%/B 1.0000
127-2222502-13 ELEC. CAP. 2200uF/25V +80-20% 13X25(NORMAL) 1.0000
127-4711003-08 ELEC. CAP. 470uF/10V +80-20%/B 1.0000
127-4785003-05 ELEC. CAP. 4.7uF/50V +80-20%/B 3.0000
130-4004002-00 DIODE 1N4002 4.0000
130-4104148-02 DIODE 1N4148/B 2.0000
130-5039802-00 ZENER 3.9V 0.5W 1.0000
130-5051802-00 ZENER 5.1V 0.5W 1.0000
130-5B3SWC0-00
LED 5B3SWC D5 BLUE  
2.0000
131-2020772-00 TRANSISTOR 2SB772/AV772/HT772/ SP772 1.0000
131-2030945-00 TRANSISTOR 2SC945P/AV945 (AI) 2.0000
134-0002025-00 IC UTC2025 [(3+1+3)*2]P 1.0000
134-CXA1691-00 IC CXA1691 (14*2)P SMD 1.0000
PART LIST