JVC FS-H100 Service Manual

SERVICE MANUAL
COMPACT COMPONENT SYSTEM
MB18220044
FS-H100
Area suffix
J ----------------------------- U.S.A.
TABLE OF CONTENTS
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED
No.MB182
2004/4
SPECIFICATION
Amplifier Section-CA-FSH100
Output Power 12.5 W per channel, min. RMS, driven into 6 Ω at 1kHz with no more than 10% total
harmonic distortion.
Speakers/Impedance 6 - 16
Tuner FM tuning range 87.5 MHz-108.0 MHz
AM tuning range 530 kHz-1 710 kHz
CD player Dynamic range 85 dB
Signal-to-noise ratio 85 dB
Wow and flutter Immeasurable
Cassette deck Frequency response Normal (type I):100 Hz-10 000 Hz
Wow and flutter 0.35 % (WRMS)
General Power requirement AC 120 V , 60 Hz
Power consumption 38 W (at operation)
2 W (on standby)
Dimensions (W/H/D) (approx.) 144 mm × 255 mm × 277 mm (5 11/16 in. × 10 1/16 in. × 10 15/16 in.)
Mass (approx.) 2.9 kg (6.4 lbs)
Speaker Section-SP-FSH100
Type Full range bass-reflex type
Speakers 10 cm cone × 1
Power handling capacity 12.5 W
Impedance 6
Frequency range 100 Hz to 15 kHz
Dimensions (W/H/D) (approx.) 130 mm × 257 mm × 151 mm (5 1/8 in. × 10 1/8 in. × 6 in.)
Mass (approx.) 1.5 kg (3.3 lbs) each
Designs and specifications are subject to change without notice.
1-2 (No.MB182)
SECTION 1
PRECAUTION

1.1 Safety Precautions

(1) This design of this product contains special hardware and
many circuits and components specially for safety purpos­es. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be per­formed by qualified personnel only.
(2) Alterations of the design or circuitry of the product should
not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteris­tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us­ing replacement components rated for higher voltage, watt­age, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Ser­vice Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety charac­teristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.
(4) The leads in the products are routed and dressed with ties,
clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassem­bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola­tion check on the exposed metal parts of the product (an­tenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check.
• Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particular­ly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage cur­rent must not exceed 0.5mA AC (r.m.s.).
• Alternate check method Plug the AC line cord directly into the AC outlet. Use an
AC voltmeter having, 1,000 per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15µF AC-type capacitor between an ex-
posed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC
voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).
AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)
0.15 F AC TYPE
Place this probe on
1500 10W
Good earth ground

1.2 Warning

(1) This equipment has been designed and manufactured to
meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that
these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant
safety standards.
(4) It is essential that safety critical components are replaced
by approved parts.
(5) If mains voltage selector is provided, check setting for local
voltage.

1.3 Caution

Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre­forming repair of this system.

1.4 Critical parts for safety

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version)
each exposed metal part.
(No.MB182)1-3

1.5 Importance administering point on the safety

1-4 (No.MB182)
Caution: For continued protection against risk of fire, replace only with same type 800mA/250V for F901. This symbol specifies type of fast operating fuse.
Precaution: Pour eviter risques de feux, remplacez le fusible de surete de F901 comme le meme type que 800mA/250V. Ce sont des fusibles suretes qui functionnes rapide.
^
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MB182)1-5
SECTION 3
r
DISASSEMBLY

3.1 Removing the rear cover (See Fig.1 to 3)

(1) Remove the seven screws A that retain the rear cover from
the back of the body.
(2) Remove the eight screws B that retain the rear cover from
the two sides of the body.
(3) Remove the rear cover from the body by pulling it toward
the back.
Caution:
The FM terminal wire (inside) must be pulled out, while remov­ing the rear cover.
A
Rear cove
Left side
B
B
Fig.1
A
A
B
B
Fig.2
Right side
B
B
1-6 (No.MB182)
Fig.3

3.2 Removing the CD chassis assembly (See Fig.4 to 7)

• Prior to performing the following procedures, remove the rear
cover. (1) Remove a screw C retaining the main board onto the CD
chassis.
(2) Disconnect the two FFC cables a, b from the connectors
, CN703 on the CD board.
CN704
(3) Disengage the claws c on both sides of the body, while
moving the CD chassis assembly downward and back­ward.
(4) Before you take away the CD chassis assembly, you must
disconnect the wire from the connector CN204 board. (Fig.7)
Caution:
You must ensure that the two claws of the CD chassis's top d are disengaged, while moving the CD chassis assembly.
on the main
C c
Fig.4
a
b
Fig.5
d
Fig.6
Fig.7
(No.MB182)1-7

3.3 Removing the CD mechanism (See Fig.8 to 12)

• Prior to performing the following procedures, remove the rear
cover.
• Also remove the CD chassis assembly.
(1) Remove the three screws D retaining the CD board . (2) Disconnect the FFC cable e from the connector CN701 (3) Disconnect the two parallel wires f from the connector. (4) Remove the four screws E with washers retaining the CD
mechanism.
.
D
f
Fig.10
f
Fig.8
Fig.9
e
Fig.11
E
Fig.12
1-8 (No.MB182)

3.4 Removing the bottom base assembly (See Fig.13 to 17)

• Prior to performing the following procedures, remove the rear
cover.
• Also remove the CD chassis assembly.
(1) Remove the two screws F retaining the front panel assem-
bly.
(2) Disengage the wire g that fix the cassette deck wire. (3) Disconnect the cassette head wire h and the cassette mo-
tor wire i of power supply from the connectors CN202
, and then disconnect the AUX IN connecting wire j
CN203
from the connector TP1.
(4) Disengage the claws k on both sides of the front cabinet
assembly and then move the bottom base assembly to­ward the back.
Caution:
You must ensure that the 30 pin connector CN201 nected. (See Fig.14)
is discon-
g
,
Fig.15
h
i
j
Fig.13
Fig.14
F
Fig.16
g
k
Fig.17
(No.MB182)1-9

3.5 Removing the main board (See Fig.18 & 19)

• Prior to performing the following procedures, remove the rear
cover.
• Also remove the CD chassis assembly.
• Also remove the bottom base assembly.
(1) Disengage the wire m and then disconnect the parallel wire
from the connectors CN902
(2) Removing the screw G retaining the main board onto the
bottom base.
(See Fig.19).
m
Fig.18

3.6 Replacing the 3-pin regulator (See Fig.20)

• Prior to performing the following procedures, remove the rear
cover.
• Also remove the CD chassis assembly.
• Also remove the bottom base assembly.
(1) Remove the two screws H retaining 3-pin regulator. (2) Remove the solder fixing the 3-pin regulator Q216
, IC205.
G
Fig.19
H
Fig.20
1-10 (No.MB182)

3.7 Removing the cassette deck mechanism (See Fig.21 & 22)

• Prior to performing the following procedures, remove the rear
cover.
• Also remove the CD chassis assembly.
• Also remove the bottom base assembly.
(1) Remove the four screws J retaining the cassette deck
mechanism from the back of the front cabinet assembly.
Caution:
You must press the eject key before you remove the cassette deck mechanism.
J
Fig.21
J
Fig.22
(No.MB182)1-11
3.8 Removing the display/control board assembly
y
(See Fig.23 & 24)
• Prior to performing the following procedures, remove the rear cover.
• Also remove the CD chassis assembly. (1) Remove the eleven screws K retaining the display/control
board assembly from the back of the front cabinet assem­bly.
Caution:
The display/control board may be taken out when the volume knob has been taken away.
K
Fig.23
K
Front panel assembl
Volume knob
Fig.24
1-12 (No.MB182)

3.9 Removing the cassette deck main motor, and replacing the main belt (See Fig.25 & 26)

• Prior to performing the following procedures, remove the rear
cover.
• Also remove the CD chassis assembly.
• Also remove the bottom base assembly.
(1) Remove the four screws J retaining the cassette deck
mechanism. (See Fig.21)
(2) Remove the cassette deck mechanism. (3) Remove the two screws L retaining the main motor from
the back side of the cassette deck and the top side of the cassette deck.
Caution:
After attaching the main motor, check the orientation of the motor and the polarity of the wires.
(4) Form the backside of the cassette deck, remove the main
motor and the main belt.
L
Fig.25
L

3.10 Removing the cassette deck head (See Fig.27)

• Prior to performing the following procedures, remove the rear
cover.
• Also remove the CD chassis assembly.
• Also remove the bottom base assembly.
(1) Remove the four screws J that retain the cassette deck
mechanism. (See Fig.21)
(2) Remove the cassette deck mechanism and place it so that
the front side faces up.
(3) Remove the solder from the bottom side of the head termi-
nal and disconnect the wire.
(4) Remove the screw M that retains the head. (5) Remove the screw N that retains the head. (6) Hold the head and slide it in the direction of the arrow to re-
move it.
Fig.26
N
Fig.27
M
(No.MB182)1-13
SECTION 4
ADJUSTMENT

4.1 Measurement Instruments Required for Adjustment

(1) Low frequency oscillator.
This oscillator should have a capacity to output 0dB to 600ohm at an oscillation frequency of 50Hz-20kHz.
(2) Attenuator impedance : 600
(3) Electronic voltmeter (4) Frequency counter (5) Wow flutter meter (6) Test tape
T712 : For Tape speed and wow flutter ( 3kHz) VT703 : For Head angle (10kHz)
(7) Blank tape
TAPE I : AC-225 TAPE II : AC-514
(8) Torque gauge : For play and back tension forward
; TW2111A, Reverse ; TW2121A Fast Forward and Rewind ; TW2231A
(9) Test disc: CTS-1000(12cm),GRG-1211(8cm)
(10) Jitter meter

4.2 Measurement conditons

Power supply voltage AC 120V ~, 60Hz
Measurement output terminal
4.2.1 Radio Input signal
AM frequency 400Hz
AM modulation 30%
FM frequency 1kHz
FM frequency deviation 22.5kHz
: Speaker out
: TP101 (Measuring for TUNER/DECK/CD)
: Dummy load 6
4.2.3 Standard measurement position of volume
Power : Standby
(Light STANDBY Indicator)
Sound Turbo,A,BASS EX : OFF
Sound mode : OFF
Main VOL. : 0 Minimum
Precautions for measurement
(1) Apply 30pF and 33kohm to the IF sweeper output side
and 0.082 F and 100kohm in series to the sweeper input side.
(2) The IF sweeper output level should be made as low as
possible within the adjustable range.
(3) Since the IF sweeper is a fixed device, there is no need
to adjust this sweeper.
(4) Since a ceramic oscillator is used, there is no need to
perform any MPX adjustment.
(5) Since a fixed coil is used, there is no need to adjust the
FM tracking.
(6) The input and output earth systems are separated. In
case of simultaneously measuring the voltage in both of the input and output systems with an electronic voltmeter for two channels, therefore, the earth should be connect­ed particularly.
(7) In the case of BTL connection amplifier, the minus termi-
nal of speaker is not for earthing. Therefore, be sure not to connect any other earth terminal to this terminal.
4.2.2 Frequency Range
AM 530kHz~1710kHz
FM 87.5MHz~108MHz
1-14 (No.MB182)

4.3 Arrangement of adjusting positions

4.3.1 Tape recorder section
Cassette deck mechanism (Front side)
REC/PB Head (Deck-B)
Head azimuth screw
(Forward side)
Head azimuth screw
(Reverse side)
Items
Cassette Head Azimuth Alignments
Recording Bias Frequency Alignment
4.3.2 Tuner section
Items
AM Tracking Alignments
Measurement
conditions
Test tape :V T703 (10kHz) Measurement output terminal :Left and Right speaker output (6-ohm loaded) or Headphone Output (32-ohm loaded)
Test tape :TYPE I AC-514 Measurement output terminal :Erase head terminal (CN206 6 th Pin)
Measurement
conditions
Input signal : 530kHz 600kHz Adjustment point : Antenna coil (T2)
Measurement method
1.Playback the test tape VT703 (10KHz) or equivalent.
2.Adjust the head azim uth screw to obtain maximum output and both output of L / R is in 3dB.
3.Put on the screw lock paint after alignments.
1. Insert the recording tape in deck-B.
2. Starting the recording.
3. Adjust the oscillation frequency to 82KHz+ /-3KHz by core of Oscillation coil of T201.
Measurement method
1. Set the Signal Generator signal to 530KHz the feed to Loop Antenna.
2. Receiving the signal and the adjust the OSC coil (T2) obtain the V.T is 1.40V +/-0.05V.
3. Change the receiving frequency to 600KHz (603KHz).
4. Adjust the Antenna coil ( T2 ) obtain maximum sensitivity. (Adjust the SSG output to out of AGC range.)
Standard
values
Maximum output
82kHz+/-3kHz
Standard
values
V. T : 1.40V+/-0.05V
Maximum sensitivity
Adjusting
positions
Adjust the head azimuth screw only when the head has been changed.
Use the High­Impedance Probe or Frequency counter input.
Adjusting positions
Adjust the OSC coil only when the AM coil block has been changed.
AM IFT Alignments
Note: The adjustment of CD section is not required.
Input signal :530kHz Adjustment point : I FT (T1)
1.Set the receiving frequency to 530KHz.
2.Feed the 450KHz signal to AM antenna input.
3.Adjust the IFT Block T1 obtain to maximum output. (Adjust the SSG output to out of AGC range.)
Maximum output
Adjust the IFT only when the IFT block has been changed.
(No.MB182)1-15
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
1-16 (No.MB182)
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB182)
Printed in Japan
WPC
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