This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
Page 2
XL-DV484W
AudioXL-DV484WService ManualXLDV484WMarketE
CHAPTER 1. GENERAL DESCRIPTION
[1] SAFETY PRECAUTION FOR SERVICE MANUAL
Precaution to be taken when replacing and servicing the Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping.
3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
4) Under no circumstances look directly into the Pickup Lens at any time.
5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation
exposure.
[2] VOLTAGE SELECTION
Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage as follows.
Turn the selector with a screwdriver until the appropriate voltage number appears in the window(110V,127V,220V or 230V - 240V AC).
[3] AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCL0008AW00
QACCE0015AW00
1 – 1
Page 3
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
[4] SPECIFICATIONS
XL-DV484W
■ General
Power sourceAC 110/127/220/230-240 V , 50/60 Hz
Power consumption
DimensionsWidth: 185 mm (7-1/4")
Weight
120 W
Height: 260 mm (10-1/4")
Depth: 307 mm (12")
6.4 kg (14.1 lbs.)
■ Amplifier
Output power
Output terminalsSpeakers: 6 ohms
Input terminals
MPO: 200 W (100 W + 100 W) (10 % T.H.D.)
RMS: 100 W (50 W + 50 W) (10 % T.H.D.)
RMS: 76 W (38 W + 38 W) (0.9 % T.H.D.)
Headphones: 16 - 50 ohms (recommended:
32 ohms)
Subwoofer pre-output (audio signal):
200 mV/10 k ohms at 70 Hz
(Turn the
core of transformer T302
fully counterclock wise)
Instrument
Connection
*1
Instrument
Connection
*1
TUNER PWB-C
20
IC302
TP301
C393
T351
AM IF
FM ANTENNA
TERMINAL
IC301
T302
FM IF
T301
FM OSC
SO302
L312
FM RF
AM TRACKING fL
T306
AM BAND
COVERAGE fL
IC303
AM
LOOP
ANTENNA
CNP301
R356
TP302
T303
*1. Input: Antenna Output: TP301
Figure 2 ADJUSTMENT POINTS
2 – 1
Page 8
XL-DV484W
3. DVD SECTION
• Adjustment
Since this DVD system incorporates the following automatic adjustment functions, readjustment is not needed when replacing the
pickup. Therefore, different PWBs and pickups can be combined
freely.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
Items adjusted automatically
1) Offset adjustment (The offset voltage between the head amplifier
output and the VREF reference voltage is compensated inside the
IC.)
* Focus offset adjustment
* Tracking offset adjustment
2) Tracking balance adjustment
3) Gain adjustment (The gain is compensated inside the IC so that the
loop gain at the gain crossover frequency will be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
4. DVD ERROR CODE DESCRIPTION
ErrorExplanation
10*CAM error. Can't detect CAM switch when CAM is moving.
11*When it detect cam operation error during initialize process.
20*TRAY error. Can't detect TRAY switch when TRAY is mov-
ing.
21*When it detect TRAY operation error during initialize pro-
cess.
30When it change to DVD function, DVD cannot start up.
* 'CHECKING'
If Error is detected, 'CHECKING' will be displayed instead of 'ERCD**'. 'ER-CD**' display will only be displayed when error had been
detected for the 5th times.
2 – 2
Page 9
[2] TEST MODE
XL-DV484W
3. DVD TEST Mode
1. TEST Mode Functions
1.1. Entering the TEST Mode
While holding down both the button and the X-Bass button ofthe
main unit from the power-off state, press the ON/STAND-BY button
toenter the Test Menu Mode.
1.2. Test mode processing
When entering the TEST Mode, the ROM version are displayed as follows
Version on the FL display: “UD. ****” (****: Version No.)
1.3. TEST Mode Button
Press direct designation button during the version display to enter the
specified TEST Modes as shown below.
1. Press the ON/STAND-BY button in each TEST Mode to display
“CLEAR AL” except SHIPPING TEST. Then reset and start. (Clear
RAM.)
2. It is neccessary to plug,off the A/C cord after “FINISHED” is displayed on the FL for SHIPPING TEST.
3.1. Outline
• To send key codes of the TEST Mode 1 to the DVD unit to start the
TEST Mode.
• Thereafter the system’s microcomputer only sends key codes to
the DVD unit.
• The main unit operation is started in the same way as the normal
startup of the DVD/CD Function.
• Only monitor (video) output is normally controlled. “MUTE ON”
remained.
• During this TEST Mode, “DVD TEST” is shown on the FL display
and change to “DVD****”. (****:DVD Version)
(Display is shown by OSD. Main unit display not available.)
3.2. TEST Mode Operation
1. The TEST Mode is started in the same way as the normal startup of
the DVD/CD Function. Then the DVD unit is normally started. During the TEST Mode, “DVD****” is continuously displayed.
2. Shipping TEST Mode
2.1. Outline
• ID command for initialization is sent to the DVD unit and EEPROM
in the unit is initialized.
• System micro computrer and DVD changer is initialized.
2.2. TEST Mode Operation
When entering the Shipping TEST Mode:
1. “WAIT” is displayed on the FL display .
2. “FINISHED” shall be kept displaying after initialization is completed.
Manually plug off the A/C cord to get out of the TEST Mode.
When initialization is failed, ”NIT ERR” remains to be shown on the
FL display until plug off the A/C cord.
2.3. Supplementary Note
1. When entering this TEST Mode, it is prohibited to press any key
until the above processing is completed.
2 – 3
Page 10
XL-DV484W
2. DVD TEST Mode
1. Press the DVD/CD button on the main unit from the TEST Mode
initial condition to enter "DVD TEST".
F000000000000000
(Press the "1" key of the remote control.)
TEST MODE
Model name (MODEL)
Program version/
Creation date
CPRM key code
(CPRM)
CPRM Serial No.
(S/N)
Microcode
version (UCODE)
Servo program version
(SODCV)
Source code
version (CSTMV)
FFFF FFFF
FFFF FFFFF F
RO*: Region No.
Press the "PLAY" key of the remote control 8 times.
TEST Mode initial screen returns.
LASER TEST Mode
1. Press the DVD/CD button on the main unit from the TEST Mode
initial condition to enter "DVD TEST".
F0000000 00000000
(TEST MODE iitial screen)
(TEST Mode initial screen)
Press the (3) key.
DYNAMIC TEST
1 : LASER TEST
2:STEP TEST
3:PLAY TEST
3:PLAY TESTNOTRAY
MENU:SPIN OFFSET ADJUST
Press the (1) key.Press the (1) key.
LASER TEST
DVD LD ON
The screen display as shown on the left.
The tray opens and
DVD Laser lights on.
The spin rotates
approx. 1 sec.
The pick slightly moves
in the circumference
direction.
LASER TEST
CD LD ON
Press the (1) key.
LASER TEST
LD OFF
DVD laser lights off and
CD laser lights on.
The spin rotates approx.
1 sec.
The pick slightly moves in
the circumference direction.
Laser lights off.
The spin rotates approx.
1 sec.
The pick slightly moves in
the circumference direction.
Press the (1) key to shift to "DVD LD ON".
Press the "STOP" key to return to the "DYNAMIC TEST" screen.
2 – 4
Page 11
Step Execute Mode
1. Press the DVD/CD button on the main unit from the TEST Mode
initial condition to enter "DVD TEST".
XL-DV484W
F0000000 00000000
Press the (3) key.
DYNAMIC TEST
1:LASER TEST
2:STEP TEST
3:PLAY TEST
9:PLAY TEST NO TRAY
MENU : SPIN OFFSET ADJUST
Press the (2) key.
STEP TEST
TRAY OPEN
Press the "PLAY" key.
STEP TEST
FOCUS ON
4-digit alphanumeric
ASMAX
4-digit alphanumeric
FEPP
Press the "PLAY" key.
STEP TEST
TRACK ING ON
4-digit alphanumeric
ASMAX
4-digit alphanumeric
FEPP
4-digit alphanumeric
ASAGC
4-digit alphanumeric
TEAGC
0000
FBAL0
4-digit alphanumeric
TBAL0
Press the "PLAY" key.
STEP TEST
FBAL STUDY
4-digit alphanumeric
ASMAX
4-digit alphanumeric
FEPP
4-digit alphanumeric
ASAGC
4-digit alphanumeric
TEAGC
4-digit alphanumeric
FBAL0
4-digit alphanumeric
TBAL0
Press the "PLAY" key.
STEP TEST
GAIN STUDY
4-digit alphanumeric
ASMAX
4-digit alphanumeric
FEPP
4-digit alphanumeric
ASAGC
4-digit alphanumeric
TEAGC
4-digit alphanumeric
FBAL0
4-digit alphanumeric
TBAL0
4-digit alphanumeric
FCGA0
4-digit alphanumeric
TKGA0
Press the "PLAY" key.
STEP TEST
D V D I D 8-digit numeric
4-digit alphanumeric
ASMAX
4-digit alphanumeric
FEPP
4-digit alphanumeric
ASAGC
4-digit alphanumeric
TEAGC
4-digit alphanumeric
FBAL0
4-digit alphanumeric
TBAL0
4-digit alphanumeric
FCGA0
4-digit alphanumeric
TKGA0
4-digit alphanumeric
FCBT0
4-digit alphanumeric
OFTR0
Press the "STOP" key to return to the DYNAMIC TEST screen.
Turn the power from off to on to clear the Step Execute Mode.
Buttons used for the TEST Mode are shown above. When pressing the following DVD-related buttons, corresponding button codes are transmitted.
ON SCREEN, SURROUND,CUE, REVIEW, Cursor ↑, ↓, ←, →, RETURN, ZOOM, TOP-MENU, CLEAR, RANDOM subtitle, angle, sound, DVD
MENU, Gamma, S-picture, DIRECT,DISPLAY,SET-UP
3.4. Supplementary Note
1. Do not press buttons other than the DVD-related buttons, except for the ON/STAND-BY button. Do not switch functions; do not control volumes.
For the electronic volume IC and the monitor output control, constantly fix the setting to DVD/CD function.
2 – 6
Page 13
4. ROM Rewrite Mode
Description of version name
Example: VER: VXW0223A
From the left:
V : Video model
X : XLDV***W
W : Southeast Asia
0 223 A : Version
* The format may be changed.
ex) V XW0223A
2 Destination
1 Model
V: Video model/A: Audio/Model for SACD
X : XLDV***W
1 Model
J : Japan
H : Europe
U : USA
K : Korea/Philippines
W : Southeast Asia
A : Australia
Z : Middle East
C : China
M : Mexico
2 Destination
4.1. ROM Rewrite Mode
1. Creating version upgrade disc
• Write the following three files on CD-R/CD-RW.
• !$#%&’().@{}
• D-combo3.cdr
• ********.bin
(********: Names differ according to versions)
• Write the files at lowest possible speed.
• Do not mix other data.
2. During normal power-on, insert the version upgrade disc.
3. After the version upgrade disc is normally determined, the message, “VERSION UP DISC IS DETECTED” and the version are displayed on OSD. Then ROM data read is started.
OSD display (Example)
VERSION UP DISC
IS DETECTED
0905
XL-DV484W
7. Confirming the version
• A few moments after entering the DVD TEST Mode, “DVD ****”
is displayed on the main unit.
(****: 4-digit numeric version code)
• To confirm the detailed version information, press the “1” key of
the remote control.
The system information is displayed on the OSD display.
(“********”: Version name) Check that the version name conforms to the write data.
4. When the data read is completed, “NOW FLASH WRITE START…”
is displayed on OSD. Then the Flash Rom rewrite is entered.
OSD display (Example)
NOW FLASH WRITE START...
5. When rewrite is normally completed, “FL W: END” is displayed on
6. If “FL W:ERR” or “CANT READ” is displayed on the main unit or
the main unit. Eject the disc automatically coming out from the tray.
Then turn the power off.
“FL W:END” is not displayed after 10 minutes, turn the power off to
try again from the start.
ROM DATA READING
956
VERSION UP DISC
IS DETECTED
0905
READ COMPLETE
8. Press the Power button to display “CLEAR AL” .
Reset and start the system’s microcomputer to cancel the test
Mode.
2 – 7
Page 14
XL-DV484W
5. DVD Display Test
5.1. DVD Display Test
To display servo adjustment values, error rates, laser current, etc. during DVD playback.
1. Press the DISC 2 button on the main unit from the TEST Mode initial condition.
2. DVD starts up with “DVD” blinking on the FL display.
3. Press the Tuner/Band button to display DVD adjustment values, etc. Press it again and the display disappears and the normal screen returns.
The error rates displayed are for reference; they are not the judging criteria.
4. Press the “Power” button to cancel this mode.
DVD
FG0TG0TG1FG1FBL0TBL0TBL1FBL1
Average error rate
Audio buffer spaceVideo buffer spaceNumber of error occurrence
TitleNoChapNo
CD
Audio buffer spaceVideo buffer spaceNumber of error occurrence
TrNoTIME
When the Spin Offset Mode is never executed
DVD
FG0
Average error rate
Maximum error rateLaser output
Sector ID
Maximum error ratLaser output
TG0TG1FG1FBL0TBL0TBL1FBL1
SPINREADNG
Audio buffer spaceVideo buffer spaceNumber of error occurrence
TitleNoChapNoSector ID
CD
Audio buffer spaceVideo buffer spaceNumber of error occurrence
TrNoTIME
2 – 8
Page 15
6. CD-ROM Write Mode
6.1. Outline
DVD-ROM can be upgraded from CD-ROM. The write mode is
entered from the normal mode.
1. When any CD-ROM for version upgrade DVD is detected, the status informs that the version upgrade ROM is being read.
When DVD microcomputer is changed to System microcomputer
and byte 24 status data detects 0Fh:
• The TEST Mode is entered by the status reception.
• The Power button /Function switching is prohibited.
(Power supply is necessary until write is completed.)
• It is prohibited to accept any button input until write is com-
pleted.
• Change the display as follows:
TOC READ
2. To expand into RAM, DVD performs read-operation.
3. When reading ends, transmission stops for writing.
(Ignore stoppage of transmission during write.)
When transmission stops, the transmission port receives write
states, which are displayed according to port states.
W: ***
StateUnit display
1During readFLASH WR
2During writeFL W : S T R
3Write endedFL W : E N D
4Write errorFL W : E R R
XL-DV484W
4. To open the DVD/CD tray will automatically open when end of
rewrite is detected.
5. To close the DVD/CD door, cancel the TEST Mode and reset when
the ON/STAND-BY button is pressed.
* During write
After reading, “FL W: END” is displayed once. At this point write
does not end. It ends when display is changed from “FL W:
STR” to “W: END” and the DVD/CD tray opens.
* After reading, the DVD/CD tray may open after “W: END” is dis-
played, because RAM is not matched.
Press the Power key to get out of the TEST Mode to read the
version upgrade disc.
6. To initialize the EEPROM, do the shipping TEST mode.
2 – 9
Page 16
XL-DV484W
[3] Standard Specification of Stereo System Error Message Display Contents
Error ContentsDISPLAYNotes
DVDDVD Changer Mechanism
Error.
DVD Communication Error.'ER-CD30'DVD COMMUNICATION ERROR.
Focus Not Match/IL Time Over. 'NO DISC'
TUNERPLL Unlock.
(*) CHECKING:
If DVD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**'. 'ER-CD**' display will only be display when error had
been detected for the 5 th times.
Speaker abnormal detection and +B PROTECTION display
In case speaker abnormal detection or +B PROTECTION had occurred, it can be check by pressing 'ON/STAND-BY', '' and 'X-BASS' button.
MicroComputer version number will displayed as "UD******".
Press ‘VIDEO/AUX’ button during version number display and then press ‘ON/STAND-BY’, ‘MEMORY/SET’ and ‘VIDEO/AUX’ button. Display will
show "S** B**". S is referring to speaker abnormal detection and B is referring to +B PROTECTION. ** is in hex valve.
+B PROTECTION is condition when irregular process occur on power supply line.
BEFORE TRANSPORTING THE UNIT
The following process need to be taken after set tapering/parts replacement.
1. Press the ON/STAND-BY button to enter stand-by mode.
'ER-CD**' (*)10: CAM SW Detection NG during normal operation
11: CAM SW Detection NG during initialize process
20:TRAY SW Detection NG during normal operation
21:TRAY SW Detection NG during initialize process
87.50
FMMHz
PLL Unlock.
2. While pressing down the button and the X-BASS/DEMO button, press the ON/STAND-BY button. The Micro Computer version number will
be displayed as "UD******".
3. Press OPEN/CLOSE button until "WAIT"--> "FINISHED" appears.
4. Unplug the AC cord and the unit is ready for transporting.
2 – 10
Page 17
Pinch Roller
(B1)x1
<A>
<B>
Pinch
Roller
Pawl
Pull
(D1)x2
Ø2.6x5mm
Motor
Clutch Ass'y
AudioXL-DV484WService ManualXLDV484WMarketE
CHAPTER 3. MECHANICAL DESCRIPTION
XL-DV484W
[1] REMOVING AND REINSTALLING THE
MAIN PARTS
1. TAPE MECHANISM SECTION
Perform steps 1 to 11 of the disassembly method to remove the tape
mechanism.(see page 3-3,3-4)
1.1. How to remove the Record/Playback Head (See Fig. 1)
1. When you remove the screws (A1) x 2 pcs and (A2) x 1 pc., the
record/playback head can be removed.
1.2. How to remove the Pinch Roller (See Fig. 2)
1. Carefully bend the pinch roller pawl in the direction of the arrow
<A>, and remove the pinch roller (B1) x 1 pc., in the direction of the
arrow <B>.
NOTE: When installing the pinch roller, pay attention to the spring
mounting position.
1.3. How to remove the Belt (See Fig. 3)
1. Remove the main belt (C1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (C2) x 1 pc.
1.4. How to remove the Motor (See Fig. 4)
1. Remove the screws (D1) x 2 pcs., to remove the motor.
Erase Head
(A1)x2
Ø2x6mm
(A2)x1
Ø2x9mm
Figure 1
Clutch Ass'y
Record/Playback
Head
Main Belt
(C1)x1
Figure 2
FF/REW
Belt
(C2)x1
Figure 3
FF/REW
Clutch
Flywheel
Motor
Figure 4
3 – 1
Page 18
XL-DV484W
1
24
PICKUP UNIT ASS'Y
Short land
Circuit shorted
Circuit open
2. DVD/CD MECHANISM SECTION
2.1. Replacing the DVD mechanism (See Fig. 1)
Before the replacement, unsolder the service DVD pickup short land.
2.2. How to remove DVD/CD Disc (See Fig. 2~6)
1. When DVD/CD is at play position, rotate reduction gear C clockwise as shown in Figure 2 Until disk tray is at ‘STOCK’ position,
then rotate the gear further to eject the disk tray (Figure 6) so that
DVD/CD can be removed from the tray.
2. In another case, if DVD/CD mechanism is at tray No. 1 play position and to remove DVD/CD located in tray No. 3, the procedure is
as follows:
If the gear up down board is located at tray No. 1 position, then
rotate Reduction gear C clock-wise until Disc tray is at stalk
‘STOCK’ position. Rotate reduction gear D clock-wise (Figure 3) to
move the DVD/CD mechanism to tray No. 3 position. This is confirmed by checking the gear up down board position Base on the
marking as indicated on the main chassis as shown in Figure 4.
• Usually changer is covered with top plate. As for reference purpose, we exclude the top plate for easy viewing. (Figure 5,6)
CD Disc
Disc Tray
Guide Tray
Figure 1
Reduction gear C
CD Disc
CD Disc
Remove CD from tray.
CD At play position.
CD At 'STOCK' position.
Figure 5
Tray eject
Gear up down board
Front
Rear
Figure 2
Reduction gear D
UpDown
Figure 3
Figure 6
3 – 2
Figure 4
Mark 1
(DISC 1)
Mark 2Mark 4
(DISC 2)
Mark 3Mark 5
(DISC 3)
(DISC 5)
(DISC 4)
Page 19
(A1) x1
ø3x10mm
(A1) x2
ø3x8mm
(A1) x1
ø3x10mm
(A1) x1
ø3x8mm
(A1) x2
ø3x8mm
(B1) x2
ø3x10mm
(A1) x2
ø3x8mm
(A1) x2
ø3x8mm
Front Panel
Cabinet
Rear
Panel Bottom
Rear
Panel Top
Jack PWB
(D1) x9
ø3x8mm
(F1) x1
ø3x8mm
(G1) x1
ø3x10mm
(E1) x1
ø3x10mm
(E2) x1
(C3) x2
(C2) x1
Front Panel
Rear
Panel Bottom
Hook
(C1)x1
Hook
(C1)x1
Pull
Pull
DVD Changer
Unit
Main PWB
Headphones
PWB
Translation PWB
(F2) x1
(E1) x2
ø3x10mm
Front Panel
Turner PWB
MIC PWB
Main PWB
(E2) x1
(C3) x1
Pull
(E3) x1
Tape
Mechanism
(E3) x1
Pull
Hook
(E4)x1
Hook
(E4)x1
[2] DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and
reassembling it, to keep it safe and ensure excellent performance:
1) Take cassette tape and compact disc out of the unit.
2) Be sure to remove the power supply plug from the wall outlet
before starting to disassemble the unit.
3) Take off nylon bands or wire holders where they need to be
removed when disassembling the unit. After servicing the unit,
be sure to rearrange the leads where they were before disassembling.
4) Take sufficient care on static electricity of integrated circuits and
other circuits when servicing.
After removing the connector for the optical pickup from the connector,
wrap the conductive aluminium foil around the front end of the connector so as to protect the optical pickup from electrostatic damage.
292.46 V
302.46 V
312.43 V
322.43 V
332.46 V
342.46 V
352.46 V
2.46 V
36
2.46 V
37
2.46 V
38
2.46 V
39
0V
40
4.87 V
41
0V
42
ICK2
PIN
VOLTAGE
NO.
1
5.24 V
5.24 V
2
3
5.24 V
4
0V
5
5.24 V
6
5.24 V
7
5.24 V
8
9.62 V
PIN
VOLTAGE
NO.
13.5V
22.6V
3
3.5 V
4
2.3 V
52.3V
60V
72.3V
82.8V
9
3.5 V
10 2.2 V
11 2.2 V
12 0 V
13 2.5 V
14 2.4 V
15
3.5 V
16 2 V
17 3.4 V
18 3.4 V
3.3 V
19
20 3.1 V
21
0V
1.6 V
22
1.6 V
23
24
0V
25
0V
26
0V
27
2V
28
3.5 V
29
0.6 V
30
2.6 V
31 0 V
32332.3 V
2.3 V
34 3.5 V
35 2.3 V
36
2.8 V
37 0 V
38 2.2 V
2.2 V
39
40 3.5 V
41 2.5 V
42 3.5 V
43 0 V
44 2.6 V
45
0V
46 2.3 V
47 2.3 V
3.5 V
48
49 2.3 V
50 2.8 V
IC3401
PIN
VOLTAGE
NO.
510 V
52
2.2 V
2.2 V
53
3.5 V
54
552.5 V
560 V
570 V
58592V
1.7 V
601.6 V
611.8 V
621.7 V
632.9 V
640 V
650 V
663.5 V
671.8 V
680 V
690 V
702 V
710 V
720 V
732.6 V
743.5 V
752.3 V
760 V
772.3 V
782.8 V
793.5 V
802.2 V
812.2 V
820 V
832.5 V
840 V
850 V
860 V
Q110
PIN
VOLTAGE
NO.
0V
1
9.84 V
2
0V
3
Q302
PIN
VOLTAGE
NO.
0.88 V
E
2.52 V
C
0V
B
Q601
PIN
VOLTAGE
NO.
0V
E
0V
C
0.71 V
B
Q602
PIN
VOLTAGE
NO.
0V
E
0V
C
0.71 V
B
Q603
PIN
VOLTAGE
NO.
0V
E
0V
C
0.66 V
B
IC3704
PIN
VOLTAGE
NO.
11.2V
2
1.2 V
3
0V
4
0V
561.4 V
1.7 V
7
0V
0V
8
0V
9
107.6 V
110 V
120 V
13
1.3 V
141.3 V
15
0V
16
0V
170.7 V
18
0.7 V
197.6 V
201.3 V
211.3 V
227.6 V
231.3 V
247.6 V
251.2 V
261.2 V
27
0V
281.2 V
291.2 V
301.2 V
311.2 V
321.2 V
331.2 V
341.2 V
351.2 V
361.2 V
Q604
PIN
VOLTAGE
NO.
0V
E
0V
C
0.66 V
B
Q605
PIN
VOLTAGE
NO.
0V
E
0V
C
12.80 V
B
Q606
PIN
VOLTAGE
NO.
0V
E
0V
C
0.69 V
B
Q701
PIN
VOLTAGE
NO.
12.94 V
E
0V
C
12.94 V
B
Q702
PIN
VOLTAGE
NO.
12.94 V
E
1.10 V
C
12.94 V
B
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
PIN
NO.
1
2
3
1
2
3
E
C
B
E
C
B
E
C
B
E
C
B
1
2
3
E
C
B
E
C
B
1
2
3
E
C
B
E
C
B
E
C
B
E
C
B
Q710
VOLTAGE
0V
0V
4.37 V
Q711
VOLTAGE
9.89 V
9.98 V
0.88 V
Q712
VOLTAGE
0.90 V
4.83 V
0.90 V
Q713
VOLTAGE
12.94 V
0.88 V
12.94 V
Q714
VOLTAGE
0V
4.83 V
0V
Q715
VOLTAGE
12.94 V
1.10 V
12.94 V
Q719
VOLTAGE
0V
5.03 V
0V
Q853
VOLTAGE
0V
8.53 V
0V
Q860
VOLTAGE
0V
4.76 V
0V
Q866
VOLTAGE
0V
17.05 V
0V
Q901
VOLTAGE
0V
4.82 V
0V
Q902
VOLTAGE
0V
4.82 V
0V
Q903
VOLTAGE
0V
4.82 V
0V
Q904
VOLTAGE
0V
4.82 V
0V
PIN
NO.
PIN
NO.
PIN
NO.
E
C
B
E
C
B
E
C
B
Q906
VOLTAGE
0V
2.30 V
0V
Q907
VOLTAGE
0V
4.85 V
0.62 V
QK1
VOLTAGE
4.86 V
7.85 V
5.52 V
5 – 2
Page 28
XL-DV484W
PIN
VOLTAGE
NO.
13.5 V
22.5 V
3
2.5 V
4
0V
52.7 V
62.3 V
73.5 V
83.5 V
9
2.3 V
102.3 V
110 V
122.6 V
132.6 V
143.5 V
15
1.3 V
160 V
170 V
183.5 V
2.7 V
19
200.8 V
21
2.7 V
2.7 V
22
3.5 V
23
0V
24
3.1 V
25
0V
26
27
0.5 V
28
0.5 V
29
3.5 V
0V
30
312.8 V
32330.7 V
2.9 V
342.7 V
352.6 V
36
0.7 V
372.6 V
380 V
0V
39
400.5 V
410.7 V
423.5 V
430 V
442.7 V
45
0.7 V
462.9 V
473.4 V
0V
48
490 V
500 V
PIN
VOLTAGE
NO.
510 V
3.4 V
52
3.3 V
53
3.3 V
54
552.7 V
563.5 V
570 V
58590V
0V
602.4 V
613.4 V
623.4 V
633.4 V
641.7 V
650 V
662.9 V
671.3 V
683.1 V
690 V
701.7 V
711.7 V
720 V
730 V
743.4 V
753.4 V
763.4 V
773.4 V
781.7 V
793.5 V
800 V
813.4 V
820 V
833.4 V
840 V
850 V
860 V
870 V
880 V
0V
89
0V
90
913.5 V
921.7 V
930 V
940 V
953.4 V
960 V
97
0V
98
1.3 V
990 V
1000 V
PIN
VOLTAGE
NO.
1013.4 V
102
0V
0V
103
3.4 V
104
1050.9 V
1060 V
1070.8 V
108
1.6 V
2.1 V
109
1102.6 V
1112.1 V
1121.1 V
1132 V
1141.6 V
1151.6 V
1161.6 V
1171 V
1183.5 V
1190 V
1201 V
1211.7 V
1222.1 V
1232.1 V
1242.1 V
1252.1 V
1262.1 V
1272.1 V
1282.1 V
1292.1 V
1302.1 V
1312.1 V
1320 V
1330 V
1340 V
1350 V
1362.1 V
1371.7 V
1380 V
1.7 V
139
1.7 V
140
1411.7 V
1421.7 V
1430 V
1441.4 V
1453.4 V
1461.7 V
1472.3 V
1482.3 V
1493.4 V
1.7 V
150
IC3001
PIN
NO.
1510 V
152
153
154
1552.2 V
1563.4 V
1570.7 V
158
159
1603.4 V
1611.4 V
1620.7 V
1631.7 V
1643.4 V
1651.4 V
1660 V
1672.2 V
1680 V
1691.6 V
1703.4 V
1711.7 V
1723.4 V
1731.7 V
1742.7 V
1751.7 V
1761.7 V
1770 V
1780 V
1790 V
1800 V
1811.7 V
1823.5 V
1830 V
1842.6 V
1852.5 V
1861.3 V
1872.2 V
1881.3 V
189
190
1912.3 V
1922.3 V
1932.8 V
1940 V
1953.5 V
1962.8 V
1972.3 V
1980 V
1992.2 V
2002.3 V
VOLTAGE
1.7 V
1.3 V
0V
0V
3.4 V
3.5 V
2.3 V
PIN
VOLTAGE
NO.
2012.2 V
202
3.5 V
2.3 V
203
2.5 V
204
2052.6 V
2060 V
2072 V
208
2V
3.4 V
209
2101.7 V
2110 V
2121.6 V
2131.3 V
2140 V
2150 V
2161.7 V
2170 V
2183.4 V
2191.6 V
2200 V
2210 V
2221.3 V
2231.8 V
2240 V
2251 V
2263.5 V
2270 V
2280 V
2290 V
2300 V
2310 V
2323.4 V
2333.4 V
2340 V
2350 V
2360 V
2373.5 V
2383.5 V
3.5 V
239
3.5 V
240
2410 V
2423.5 V
2433.5 V
2441.3 V
2450 V
2463.5 V
2473.5 V
2480 V
2493.5 V
2503.5 V
PIN
VOLTAGE
NO.
2513.5 V
3.5 V
252
3.5 V
253
0V
254
2553.5 V
2563.5 V
IC3801
PIN
VOLTAGE
NO.
11.7V
0V
2
1.7 V
3
4
0V
5
3.5 V
64.7V
72.3V
82.3V
0V
9
102.3 V
113.5 V
123.5 V
130 V
140 V
3.5 V
15
161.7 V
IC3503
PIN
VOLTAGE
NO.
10V
2.6 V
2
0.6 V
3
4
0.5 V
5
0.7 V
62.7 V
72.7 V
80.5 V
0.5 V
9
100 V
110 V
120 V
130 V
140 V
0V
15
160 V
170 V
180 V
190 V
200 V
IC3504
PIN
VOLTAGE
NO.
10V
2.8 V
2
2.8 V
3
4
0.5 V
5
0.7 V
60.7 V
70.7 V
82.8 V
2.8 V
9
100 V
1112-
1314-
-
15
16-
1718-
19-
20-
IC3601
PIN
VOLTAGE
NO.
13.5 V
0V
2
1.7 V
3
4
1.7 V
5
3.5 V
60V
71.7 V
81.7 V
1.7 V
9
101.7 V
110 V
123.5 V
131.7 V
140 V
151.7 V
163.5 V
IC3602
PIN
VOLTAGE
NO.
1
0V
0V
2
3
0V
0V
4
3.5 V
5
63.5 V
70V
83.5 V
IC3702
PIN
VOLTAGE
NO.
1
1.7 V
1.7 V
2
3
1.7 V
0V
4
2.8 V
5
63.1V
70V
84.8V
IC3501
PIN
VOLTAGE
NO.
10.4 V
20.5 V
3
2.6 V
4
2.8 V
50.7 V
60.5 V
70.7 V
82.7 V
9
0V
100 V
113.5 V
123.1 V
130 V
143.5 V
15
0V
160 V
170 V
182.7 V
2.9 V
19
202.6 V
21
0.8 V
22
0.7 V
23
0.7 V
24
2.8 V
25
2.9 V
26
2.9 V
27
0V
28
2.9 V
29
2.8 V
2.6 V
30
312.8 V
32330.6 V
0.7 V
340.5 V
350.7 V
36
0.7 V
373.5 V
380.7 V
2.7 V
39
402.6 V
412.6 V
422.8 V
430.5 V
442.7 V
45
0.5 V
460 V
473.5 V
2.7 V
48
5 – 3
Page 29
AudioXL-DV484WService ManualXLDV484WMarketE
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] NOTES ON SCHEMATIC DIAGRAM
XL-DV484W
•Resistor:
To differentiate the units of resistors, such symbol as K and M are
used: the symbol K means 1000 ohm and the symbol M means
1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this symbol P
means pico-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression
“capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• Schematic diagram and Wiring Side of P.W.Board for this model
are subject to change for improvement without prior notice.
• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
• Parts marked with “ ” () are important for
maintaining the safety of the set. Be sure to replace these parts
with specified ones for maintaining the safety and performance of
the set.