Roadstar HIF-6907 MP User manual

Service Manual - HIF-6907 MP
Service Manual - HIF-6907 MP
R
HIF-6907 MP

REVISION SHEET
REV# BY DETAILS DATE
0 cbbyvox First release 2006-02-09
Model No.:HIF-6907MP TITLE: REVISION SHEET Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
1

INDEX
1.WARNING AND TECHNICAL SPECIFICATION
2.ALIGNMENT
3.BLOCK DIAGRAM
4.FUNCTION DIAGRAM
5.SPECIFICATION
6.VOLTAGE TABLE
7.TROUBLESHOOTING
8.DISASSEMBLY INSTRUCTION
9.EXPLOSION DIAGRAM AND BOM
10.WIRE ASSEMBLY DIAGRAM
11.PRINCIPLE DIAGRAM
12.REPAIR DIAGRAM
13.MATERIAL BILL OF APPLIANCE 40-44
32
21-23
24-25
7-16
19-20
17-18
Model No.:HIF-6907MP TITLE: INDEX Revision No.: 0
Base Model:Nil Revision Date: 2006-02-09
3
4-6
27-31
26
33-35
36-39
2

WARNING:
FOR CONTINUED SAFETY THE FOLLOWING PRECAUTIONS SHOULD BE FOLLOWED
DURING SERVICING.
1.MAKE SURE POWER CORD IS DISCONNECTED BEFORE REPLACING ANY PART.
2.REPLACE WITH TYPE, CRITICAL PARTS WITH! MAKE ON 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 MEASURED SHOULD
BE 10 MEGAOHMS MINIMUM.
TECHNICAL SPECIFICATION
Power output :2 Watts RMS per channel NOTE:
into 8 ohms In keeping with our policy of continually
Frequency response :40Hz-15KHz improving our service and the technical
Bass Boost :100Hz+10dB quality of our products we reserve the right
to change component type.manufactures
sources of supply of technical specification
are any time.
TUNER SECTION
FM Section :88MHz-108MHz
AM Section :520KHz-1600KHZ
CASSETTE SECTION
Tape :Cassette type
Tape :4.75cm per second
Tracks :2Tracks stereo
Frequency Response :125Hz-8KHz
CD PLAYER SECTION
Frequency Response :40Hz-10KHz
S/N Ratio :60dB
Channel Separation :40dB
MODEL:HIF-6907MP
Model No.:HIF-6907MP TITLE: WARNING AND TECHNICAL
SPECIFICATION Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
3

INSTRUMENTS REQUIRED: AM&FM Signal generator
IF Scope&2tracks Oscilloscope
AM/FM 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 the band switch to the AM position.
Set volume control to reference output.
Use loop antenna to Radiate the Signal into the Receiver Antenna..
RADIO SETTING ADJUSTMENT REMARKS
GENERATOR
10.7/（AM465）KHZ Scope across FM T102 Adjust the
10.8KHz Speaker jack Wave for maximum
10.9KHz Or IC TA2111 AM T101 &good Output
Pin(13 or 14)
AM RF ALIGNMENT
SIGNAL RADIO SETTING INDICATOR ADJUSTMENT REMARKS
GENERATOR
520KHz Tune to 520KHz SCOPE across T103 Adjust for maximum
400Hz (low end). Speaker jack or & good Output.
Modulation IC TA2111
1620KHz Tune to 1600KHz pin(13 or 14) VC101-TCO Adjust for maximum
400Hz (high end). &good output
Modulation
600KHz 600KHz VTVM&SCOPE BAR ANT. -AM Adjust for maximum
Across Speaker &good Output
1400KHz 1400KHz Jack VC101-TAC Adjust for maximum
&good Output
FM RF ALIGNMENT
Connect Signal Generator across antenna terminals.
Adjustment of coils should not be attempted unless the Original coil is deformed or has been replaced.
Slide the function switch to the tuner position and the band switch to the FM position.
Set Volume control to reference output.
SIGNAL
GENERATOR RADIO SETTING INDICATOR ADJUSTMENT REMARKS
87.5MHz Tune to <88MHz L103 Adjust for maximum
1000Hz (low end ) SCOPE across &good Output
modulation Speaker jack or
108.3MHz Tune to﹥108MHz IC TA2111 VC101-FMO Adjust for maximum
1000Hz (high end ). Pin(13 or 14) &good Output.
modulation
90MHz 90MHz VTVM&SCOPE L102 Adjust for maximum.
Across SPEAKER &good output
106MHz 106MHz Jack C VC101-FMA Adjust for maximum.
&Good Output
ALIGNMENT PROCEDURES
SIGNAL INDICATOR
T
une to 90.3M/（AM 600）KH
z
high end).（AM Lowend）
Model No.:HIF-6907MP TITLE: ALIGNMENT Revision No.: 0
Base Model:Nil Revision Date: 2006-02-09
4

ALIGNMENT INSTRUCTIONS FOR CASSETTE TAPE DECK
Figure as diagram:
HEAD AZIMUTH: While playing test tape (6K3Hz) RECORDING BIAS: Press "Record" button, adjust L201
Adjust azimuth screw on the left side and the frequency move to 52KHz.
of the tape head for maximum output
for both L/R channel
INSTRUMENT REQUIRED: A. AC VOLTMETER
B. FREQUENCY COUNTER
ADJUSTMENT DIAGRAM:
Model No.: HIF-6907MP TITLE: ALIGNMENT Revision No.: 0
Base Model:Nil Revision Date: 2006-02-09
5

6
Model No.:HIF-6907MP TITLE: ALIGNMENT Revision No.: 0
Base Model:Nil Revision Date: 2006-02-09

7
Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09

Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
8

Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
9

Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
10

Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
11

Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM
12

Revision No.: 0
Base Model: Nil
Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision Date: 2006-02-09
13

TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
Model No.:HIF-6907MP
14

Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
15

16
Model No.:HIF-6907MP TITLE: BLOCK DIAGRAM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09

Model No.:HIF-6907MP TITLE: FUNCTION DIAGARM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
17

Model No.:HIF-6907MP TITLE: FUNCTION DIAGARM Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
18

SPECIFICATIONS
Power source : AC 230V/50Hz
Load impedance : 8 ohm
Reference output : 50mW
10% THD output : 2 W*2
Speaker : 8 ohm*2
Recording system : Magnet Erase
BAND、AM、400Hz 30%MOD.
Rrequency Low
Range High
Intermediate Frequency
Useable 600KHz
Sensitivity 1000KHz
(S/N 20dB) 1400KHz
Selectivity+10KHz 1000KHz
BAND、FM、1KHz 22.5KHz DEV.
Rrequency Low
Range High
Intermediate Frequency
Useable
Sensitivity
(S/N 30dB)
S/n at 1m V Input
TAPE RECORDER
Characteristic
Response 125Hz/-6.3KHz
S/N Ratio B-141N
Tape speed(3KHz-10dB)
Wow & Flutter(3KHz-JIS WTD)
Channel Level Balance
Model No.: HIF-6907MP TITLE: SPECIFICATION Revision No.: 0
Base Model: Nil Revision Date: 2006-02-09
Characteristic Unit Limit
KHz 540
KHz 1600
KHz 455
dB 64
dB 64
dB 64
dB 20
Characteristic Unit Limit
MHz 87.5
MHz 108.3
MHz
1
0.7+0.1
5
dB 26
dB 26
dB 26
dB 40
Unit Limit
dB +/-6
dB 40
%<3
% 0.35
dB 2
19