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 ti the original design unless
authorised in writing by the manufacturer. Replacement parts must be identical to those used in the
original circuits. Services should be performed by qualified personel 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 manufacturer's warranty
and will further relieve the manufacturer of responsibility for personal injury or property damage
resulting therefrom.
3. Many eletrical 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 obtain by using replaement components rated for higher voltage, the Parts
List of Service manual. Electrical components having such features ate identified by the shading on the
schematics and by ( ) on the parts List in the Service Manual. The use of a substitute
repalcement 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, tubing's, barriers and the like to
be separated from live parts, high temperatures parts, moving parts and/or sharp edges for the
prevention of electric shcok and fire hazard. When service is required, the original leat routing and
dress should be observed, and it should be confirmed that they have been returned to normal, after
re-assembling.
5. Leakage current check (Electrical Shock hazard testing)
After re-assembling the product, always perform an isolation check on the exposed metap 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 isloation 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 ecposed metal parts of the cabinet, particularly and 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 ohms per
volt or more sensitvity in the following manner. Connect a 1,500 ohm 10W resistor paralleled by a
0.15uF AC-type capacitor between an exposed
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 and exposed metal part
having a return path to te 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.).
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. It mains voltage selector is provided, check setting for local voltage.
CAUTIONBurrs formed during moulding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of performing repair of this system.
1 - 2
PC-XC350
Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged,
can destroy the laser diode in the traverse unit (optical pcikup). Take care to prevent this when performing repairs.
1.1. Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devicessuch as DVD players.
Be careful to use proper grounding in the area where repairs are being performed.
1.1.1. Gound the workbench
1. Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over
it before placing the traverse unit (optical pickup) on it.
1.1.2. Ground yourself
1. Use an anti-static wrist starp to release and static electricity built up in your body.
1.1.3. Handling the optical pcikup
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the
replacement optical pickup are storted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
2. Do not use a tester to check the condition of the laserdiode in the optical pickup. The tester's internal power
source can easily destory the laser diode.
1.2. Handling the traverse unit (optical pickup)
1. Do not subject the traverse unit (optical pcikup) to strong shocks, as it is a sensitive, complex unit.
Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific
2.
details, refer to the replacement procdeure in the text. Remove the anti-static pin when replacing the traverse
unit. Be careful not to take too long a time when attaching itto the connector.
3. Handle the flexible cable carefully as it may break when subjected to strong force.
It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not return it.
4.
1 - 3
PC-XC350
Screw B.
Disaeesmbly method
Removing the rear panel
1. From behind the body, remove the eight screws A
retaining the rear panel.
2. Then remove the two screws B retaining the rear panel.
3. Take out the rear panel from the body.
Note:
Be careful of the FM antenna white wire, it is connection with the tuner PCB up side.
You can directly take out from the tuner PCB.
When you re-assembly the product, plug the FM antenna white wire into the Tuner PCB's
"FM ANT" position.
Screw A.
Screw A.
1 - 4
PC-XC350
Removing the CD mechanism
1.Remove the rear panel
2.Removing the two screws E retaing the 3CD
mechanism cover.
3.Removing the crew F retaing the control PCB
left side.
4.Remove the srews G retaing on the 3CD mechanism cover
& the two screws H retaining on the control PCB
F
E
E
G
H
Removing the Main PCB
1.Remove rear panel
2.Remove the 3CD mechanism
3.Remove the four screws attaching the
main PCB.
1 - 5
PC-XC350
Adjustment method
Measurement instruments required for Tuner section
adjustment
Voltage applied to tuner ----- +B:DC 5.7V
1.Low frequency oscillatorVT: FM 2~5v / am 1.5~7.5v
This oscillator should have a capacity to outputReference measurement ----- 26.1mV(0.866/3
0dB to 600 at an oscillation frequency ofoutput
50Hz-20KHzInput positions ----- AM : Standard loop antenna
FM : TP1 (hot) and TP2 (GND)
2.Electronic voltmeter
3.Distorion meter
4.Frequency counterStandard measurement position of volumett
5.Wow & flutter meter
6.Test tapeBass ---------------------- Off
TCC-112: tape speed and running unevenness (3KHz)EQ ----------------------- Flat
TCC-140: Reference level (1KHz)UP and down adjustment of volume ----- Vol : 16
TCC-182A: Head angle (8KHz), playback frequency
characteristics (1KHz) and dubbing frequencyPrecautions for measurement
charateristics (125Hz and 8KHz)1.Direct connect to the IF sweeper output
side and 1 UF and 22 Kohm connect to the
7.Black tapesweeper input side. Same as FIG. 1.
TYPE I : TDK-D60
8.Torque gauge : For play and tension
FWD(CT-120m), and FF/REW(CT-F)
Measurement conditions
Power supply voltage----------AC 120V (60Hz)
Reference output----------Speaker : 0.866V/32.The IF sweeper output level should be made as
Headphone : 0.245V/32low as possible within the adjusttable range.
Reference frequency and -----1KHz, AUX : 450mV3.Since the IF sweeper is a fixed device, there is no
input levelneed to adjust this sweeper.
Input for confirming recording and-----CD : -10dB4.Since a ceramic oscillator is used, there is no need
playback characteristicsto perform and MIX adjustment.
Measurement output terminal-----Speaker CN3015.Since a fixed coil is used, there is no need to
*Load resistance----------------------3adjust the FM tracking.
6.The input and output earth systems are separated.
In case of simuitaneously measuring the voltage in
Radio Input signalboth of the input and output systems with an
electronic voltmeter for two channels, therefore, the
AM frequency ----------------400Hzearth should be connected particularly carefully.
AM modulation-----------------30%7.In the case of BTL connection amp., the minus
FM frequency -----------------1 KHzterminal of speaker is not for earthing. Therefore, be
FM frequency deviation --------22.5KHzsure not to connect any other earth terminal to this
terminal. This system is of an BTL system.
8.For connecting a dummy resistor when measuring
the output, use the wire with a greater code sze.
9.Whenever any mixed tape is used, use the band
pass filter (DV-12V)
1 - 6
TUNER ADJUSTMENT
use a plastic screews driver for adjustments.
Adjust the intermediate frequency of AM and FM to the frequency of cermic filter.
Supply voltage:DC 12.0V
Speaker impedance:3 OHMS
Function switch:RADIO
ConfirmationTest tape1 Playback the test tape TCC-182A (8KHz)MaximumAdjust the head
of head angle: TCC-182A(8KHz)2 With the recording & playback mechanism,outputazimuth screw
ConfirmationTest tapeAdjust VR401 so that the frequency counterTape speedVR401
of tape speed: TCC-112 (3KHz)reading becomes 3,010Hz +/-15Hz whenof deck
Measurement output adjust the head azimuth screw so that the only
terminal left and right output leavers become
: Speaker terminal maximum, After adjustment, lock the head
Speaker R/L azimuth at least by half turn.
(Load resistance: 3
: Headphone terminal
playing back the test tape TCC-112 (3KHz) with:3,010Hz
playback and recording mechanism after+/-15Hz
Measurement outputending forward winding of the tape.
terminal
: Headphone terminal
Referemce Values for Confirmation Items
ItemsMeasurement
conditionsValuesposition
Wow & flutterTest tapeWhen the test tape TCC-112 (3KHz) has been0.25% or
:TCC-112(3KHz)played back with the recording and playbackless
mechanism at the beginning of forward(WRMS)
winding, the frequency counter reading of
Measurement outputwow & flutter should be 0.25% or less
terminal(WRMS).
:Headphone terminal
Adjustment ofMode: Playback1 With the recording and playback
recording blas mode mechanism, load the test tapesTDK-D60
currentRecording mode TDK-D60, and set the mechanism to the 4.5 u A
(ReferenceTest tape recording and pausing condition in advance.+/-0.5u A
Value)TDK-D60
Adjustment ofReference frequency1 with the recording and playbackOutput
recording and :1KHz and 8KHz mechanism, load the test tapes (TDK-D60)deviation
palyback (REF.:-10dB)and set the mechanism to the between
frequencyTest tape recording and pausing condition in 1KHz and
characteristicsTDK-D60 advance8KHz
Measurement output2 After connecting 100 in series to the
terminal recorder head, measure the blas current
: Both recording and with a valve voltmeter at both of the
headphone terminals terminals
Measurement input2 While repetitively inputting the reference:-1dB +/-2dB
terminal frequency signal of 1KHz and 8KHz from
: OSC IN OSC IN, record andplayback the tape.
3 While recording and playback the test tape
Lch and Rch so that the output
deviation between 1KHz and 8KHz from
-1dB +/-2dB
Reference Values for Electrical Function Confirmation Items
09 535-131064-000 DISPLAY BRACKET1
S1 238-130150-602 SCREW 3 x 15 PB7 FROM CD TRAY TO FRONT CABINET
S2 238-230080-203 SCREW 3x8BM4 FIX THE TUNER BOARD
S3 238-130086-202 SCREW 3 X 8 BB ( HARD )1 FIX HEAT SINK
S4 238-130080-602 SCREW 3 X 8 PB4 FIX THE TUNER BOARD
S5 238-130100-602 SCREW 3 x 10 PB4 FROM CD DECK TO CD TRAY
PARTS NAMEDESCRIPTION/LOCALITYPART NO.
1 - 23
PC-XC350
Assembly- 2
S9
S8
31
25
26
27
28
24
S7
30
29
S5
22
S6
20
12
23
17
S3
21
19
S1
S4
16
05
18
S2
07
08
15
14
13
04
1 - 24
06
11
01
03
09
02
10
R
Assembly- 2
PC-XC350
ITEMQ'TY
!
PARTS NUMBERPARTS NAMEDESCRIPTION/LOCALITY
01 525-073030-011 RIGHT CASS DOOR LENS1
02 525-072030-011 LEFT CASS DOOR LENS1
03 525-0030S3-012 LEFT CASS DOOR1
04 525-0130S3-012 RIGHT CASS DOOR1
05 766-250000-000 LEFT CASS DOOR SPRING 1
06 525-029300-000 LEFT CASS TAPE BRACKET1
07 766-250000-000 RIGHT CASS DOOR SPRING 1
08 525-029300-000 RIGHT CASS TAPE BRACKET1
09 525-080400-013 CD DISPLAY LENS1
10 500-810200-011 "JVC" NAME PLATE1
11 535-145430-012 DISPLAY PANEL1
12 535-1010S3-012 FRONT CABINET1
13 535-149017-012 CD DOOR1
14 535-1803S3-000 CD DOOR LENS1
15 535-1074S3-000 VOLUME KNOB1
16 539-121200-000 LEFT CASS DOOR GEAR HOLDER1
17 539-121100-000 LEFT CASS DOOR GEAR1
18 539-121200-000 RIGHT CASS DOOR GEAR HOLDE
19 539-121100-000 RIGHT CASS DOOR GEAR1
20 525-0102S3-012 LEFT CASS KNOB1
21 525-0108S3-012 RIGHT CASS KNOB1
22 463-380000-000 LEFT CASS KNOB PLATE1
23 463-380000-000 RIGHT CASS KNOB PLATE1
24 535-150417-012 CD DOOR OPEN KNOB4pcs/KIT
25 535-1510S3-000POWER KNOB1
26 535-1520S3-000 TIMER CONTROL KNOB4pcs/KIT
27 535-1516S3-013FUNCTION KNOB6pcs/KIT
28 535-1060S3-000 TURNER CONTROL KNOB4pcs/KIT
29 535-150317-011 CD PLAY KNOB3pcs/KIT
30 248-250813-000 RECORDING BOARD1
31 156-255609-254 CASS DECK1
S1 238-120060-602 SCREW 2 X 6 PB1 FIX LEFT TAPE BRACKET
S2 238-120060-602 SCREW 2 X 6 PB1 FIX RIGHT TAPE BRACKET
S3 238-130080-632SCREW 3 X 8 PWB1FIX LEFT CASS DOOR GEAR
S4 238-130080-632SCREW 3 X 8 PWB1FIX RIGHT CASS DOOR GEAR
S5 238-130060-602 SCREW 3 X 6 PB3 FIX LEFT CASS KNOB PLATE
S6 238-130060-602 SCREW 3 X 6 PB3 FIX RIGHT CASS KNOB PLATE
S7 238-220050-903 SCREW 2 X 5 MC2 FIX THE RECORDING BOARD
S8 238-130100-602 SCREW 3 X 10 PB6 FIX CASS DECK
S9 238-130100-632SCREW 3 X 10 PWB4CD DOOR TRAY TO FRONT CABINET
1
1 - 25
PC-XC350
Assemly- 3
S2
S3
02
04
01
S1
03
05
S4
12
08
S5
07
13
06
11
09
10
1 - 26
Assembly- 3
PC-XC350
ITEMQ'TY
!
!
!
!
01 158-000117-622AC SOCKET1
02 500-025100-000 AC SOCKET COVER1
03 152-112560-225POWER TRANSFORMER1
04 248-250812-100RECTIFIER BOARD1
05 525-0020S3-012BACK CABINET1
06 763-250000-000BATTERY SPRING ( +/-- )1
07 764-701300-000BATTERY SPRING ( +)1
08 765-901000-000BATTERY SPRING ( -- )1
09 763-455000-000BATTERY SPRING ( +/-- )1
10 763-331800-000BATTERY SPRING ( +/-- )1
11 525-0040S3-000BATTERY DOOR1
12 466-756350-0501COVER THE VOLTAGE SELECTOR HOLE
PART NO.
PARTS NAMEDESCRIPTION/LOCALITY
PVC PLATE FOR VOLTAGE
SELECTOR HOLE
13 155-420026-238RADIO ANTENNA1
S1 238-130200-632SCREW 3 X 20 PWB2 FIX POWER TRANSFORMER
S2 238-128120-602SCREW 2.8 X 12 PB2 FIX AC SOCKET COVER
S3 238-130080-602SCREW 3 X 8 PB1 FIX RECTIFIER BOARD
S4 238-128120-602SCREW 3 X 10 PB1 FIX AUX JACK
S5 238-130100-203SCREW 3 X 10 BM ( BLACK )1 FIX RADIO ANTENNA
1 - 27
PC-XC350
Assembly- 4
01
S2
S1
1 - 28
Assembly- 4
PC-XC350
ITEMQ'TY
!
1525-0050S3-000HANDLE1
S1238-130250-602SCREW 3 X 25 PB8FROM FRONT CABINET TO BACK CABINET
P.11Poly Form, Top Right
P.12Poly Bag676-215240-040
P.13Main Unit
-
P.14Speaker Unit, LeftAS00-25002
P.15Poly Bag676-180240-040
P.16Speaker Unit, RightAS00-25008
P.17Poly Bag676-180240-040
POP Label-Left
629-080097-000
P.18
POP Label-Right
629-080096-000
P.19Poly Form, Bottom Right
875-351000-000
P.20Poly Form, Bottom Left
P.21Gift Box891-351100-010
P.22Bar Code Label612-080132-000
1-33
PC-XC350
VICTOR COMPANY OF JAPAN, LIMITED. (By JCA)
AUDIO & COMMUNICATION BUSINESS DIVISION (By JCA)
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1, 1 Chome, Ohwatari-machi, Maebashi-city, 371-8543, Japan. (By JCA)
No. 28xxx
PC-XC350
PARTS LIST
[ PC-XC350 ]
* All printed circuit boards and its assemblies are not available as service parts.
Area suffix
J ------------------------------- USA
C -------------------------- Canada
- Contents -
Electrical Parts List (Tuner circuit pcb)
Electrical Parts List (Audio circuit pcb)
Electrical Parts List (Rectifier circuit pcb)
Electrical Parts List (Control circuit pcb)