Sharp XL-55H User manual

– 1 –
XL-55H/65H
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL .......................................................................................................... 2
IMPORTANT SERVICE NOTES (FOR U.K. ONLY)......................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................ 3
NAMES OF PARTS .......................................................................................................................................................... 4
DISASSEMBLY................................................................................................................................................................. 6
REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................... 7
ADJUSTMENT.................................................................................................................................................................. 9
TEST MODE ................................................................................................................................................................... 10
ERROR LIST .................................................................................................................................................................. 14
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 15
TYPES OF TRANSISTOR AND LED.............................................................................................................................. 15
BLOCK DIAGRAM .......................................................................................................................................................... 16
SCHEMATIC DIAGRAM ................................................................................................................................................. 20
WIRING SIDE OF P.W.BOARD...................................................................................................................................... 32
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 37
TROUBLESHOOTING .................................................................................................................................................... 38
FUNCTION TABLE OF IC .............................................................................................................................................. 44
LCD SEGMENT .............................................................................................................................................................. 51
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)
SERVICE MANUAL
SHARP CORPORATION
No. S2317XL55H///
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
MICRO COMPONENT SYSTEM
XL-55H
XL- 55H Micro Component System consisting of XL- 55H (main
unit) and CP- XL65H (speaker system).
MODEL
XL-65H
XL- 65H Micro Component System consisting of XL- 65H (main
unit) and CP- XL65H (speaker system).
MODEL
Illustration XL-65H
(XL-65H ONLY)
(Except for U.K.)
• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.
Illustration XL-55H
• Note for users in U.K.
Recording and playback of any material may require consent,
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.

XL-55H/65H
– 2 –
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 I 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) TheLaserPowerOutputofthePickupinsidetheunitandreplacementservicepartshavealreadybeenadjustedpriortoshipping.
(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.
SAFETY PRECAUTION FOR SERVICE MANUAL
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
VAROITUS! LAITTEEN KÄYTTÄMINEN MUULLA KUIN TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT ÄN
I DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG LASER-
STRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR
LASERKLASS 1.
ADVERSEL-SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING.
SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.
VARO!AVATTAESSAOLETALTTIINA NÄKYVÄLLE JANÄKYMÄTTÖMÄLLE
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ
OPTISEN LAITTEEN LÄPI.
VARNING-SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA
DEL ÄR ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ
STRÅLEN GENOM OPTISKT INSTRUMENT.
(For U.K.)
(Except for U.K.)
IMPORTANT SERVICE NOTES (FOR U.K. ONLY)
Beforereturning theunitto thecustomerafter completionofa
repairoradjustmentitisnecessaryforthefollowingwithstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
Set name set value
Withstanding Voltage Tester
Test voltage 4,240 VPEAK
3,000 VRMS
Set time 6 secs
Set current(Cutoff current) 4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.
PROBE
AC OUT UNIT
SHORT-CIRCUT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW TERMINAL
WITHSTANDING
VOLTAGE TESTER

– 3 –
XL-55H/65H
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICATIONS
■General
■Amplifier
■Tuner
■CD player
■Cassette deck
■Speaker
Power source AC 230 V, 50 Hz
Power
consumption Power on: 50 W
Power stand-by: 0.6 W
Dimensions Width: 160 mm (6-5/16")
Height: 240 mm (9-1/2")
Depth: 297 mm (11-11/16")
Weight 3.6 kg (8.0 lbs.)
Output power PMPO: 120 W (total)
MPO: 60 W (30 W + 30 W) (DIN 45 324)
RMS: 40 W (20 W + 20 W) (DIN 45 324)
Output terminals Speakers: 4 ohms
Headphones: 16 - 50 ohms (recommended:
32 ohms)
CD digital output (optical)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 k
ohms
Frequency range FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Type Compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency
response 50 - 14,000 Hz (normal tape)
Signal/noise ratio 50 dB (recording/playback)
Wow and flutter 0.3 % (DIN 45 511)
Type 2-way type speaker system
Tweeter
10 cm (4") woofer
Maximum input
power 40 W
Rated input power 20 W
Impedance 4 ohms
Dimensions Width: 160 mm (6-5/16")
Height: 240 mm (9-1/2")
Depth: 200 mm (7-7/8")
Weight 2.0 kg (4.4 lbs.)/each
Specifications for this model are subject to change without
prior notice.
■General
■Amplifier
■Tuner
■CD player
■Cassette deck
■Speaker
Power source AC 230 V, 50 Hz
Power
consumption Power on: 50 W
Power stand-by: 0.6 W
Dimensions Width: 160 mm (6-5/16")
Height: 240 mm (9-1/2")
Depth: 297 mm (11-11/16")
Weight 3.6 kg (8.0 lbs.)
Output power RMS: 40 W (20 W + 20 W) (10 % T.H.D.)
Output terminals Speakers: 4 ohms
Headphones: 16 - 50 ohms (recommended:
32 ohms)
CD digital output (optical)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 k
ohms
Frequency range FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Type Compact disc player
Signal readout Non-contact, 3-beam semiconductor laser
pickup
D/A converter 1-bit D/A converter
Frequency
response 20 - 20,000 Hz
Dynamic range 90 dB (1 kHz)
Frequency
response 50 - 14,000 Hz (normal tape)
Signal/noise ratio 50 dB (recording/playback)
Wow and flutter 0.25 % (WRMS)
Type 2-way type speaker system
Tweeter
10 cm (4") woofer
Maximum input
power 40 W
Rated input power 20 W
Impedance 4 ohms
Dimensions Width: 160 mm (6-5/16")
Height: 240 mm (9-1/2")
Depth: 200 mm (7-7/8")
Weight 2.0 kg (4.4 lbs.)/each
Except for U.K.
For U.K.

XL-55H/65H
– 4 –
NAMES OF PARTS
1.CD Compartment
2.CD Eject Button
3.Volume Control
4.Cassette Compartment
5.Headphone Socket
6.On/Stand-by Button
7.Function Selector Button
8.CD or Tape Stop, Tuning Down Button
9.CD Play or Pause, Tape Play,
Tuning Up Button
10.Bass/Treble Selector Button
11.Memory/Set Button
12.Tape Record Pause Button
13.CD Track Down or Fast Reverse, Tape Rewind,
Tuner Preset Down Button
14.CD Track Up or Fast Forward, Tape Fast Forward,
Tuner Preset Up Button
15.Timer Play Indicator
16.Tape Record Indicator
17.Sleep Indicator
18.CD Random Play Indicator
19.Memory Indicator
20.FM Stereo Mode Indicator
21.FM Stereo Receiving Indicator
22.Surround Indicator
23.CD Play Indicator
24.CD Repeat Play Indicator
25.CD Digital Output Socket
26.AC Power Input Socket
27.FM 75 Ohms Aerial Socket
28.AM Loop Aerial Socket
29.Video/Auxiliary (Audio Signal) Input Sockets
30.Speaker Terminals
1
2
3
4
5
22
26
6
10
789
11 12 13 14
29
30
27
28
25
15 17 18 19 20
24
23 21
16
1.Tweeter
2.Woofer
3.Speaker Wire
4.Bass Reflex Duct
5.Remote Control Transmitter
6.Clock Button
7.On/Stand-by Button
8.CD Button
9.Tuner and Band Selector Button
10.Clear Button
11.Memory Button
12.CD Track Down, Tuner Preset Down Button
13.CD Fast Reverse, Tuning Down,
Tape Rewind Button
14.CD or Tape Play Button
15.Surround Button
16.CD or Tape Stop Button
17.Volume Up and Down Buttons
18.Bass Up and Down Buttons
19.Timer Button
20.Sleep Button
21.Video/Auxiliary Button
22.Tape Button
23.Repeat Button
24.Random Button
25.CD Track Up, Tuner Preset Up Button
26.CD Fast Forward, Tuning Up,
Tape Fast Forward Button
27.Tape Record Pause Button
28.CD Pause Button
29.Treble Up and Down Buttons
Buttons with " " mark in the illustration or highlighted in bold on
the right can be operated on the remote control only.
15
5
6
17
18
719
29
20
21
22
24
25
26
27
28
23
8
9
10
11
12
13
14
16
32
1
4
Speaker grilles are removable:
Make sure nothing comes into contact with the
speaker diaphragms when you remove the speak-
er grilles.
XL-55H

– 5 –
XL-55H/65H
1.CD Compartment
2.CD Eject Button
3.Volume Control
4.Cassette Compartment
5.Headphone Socket
6.On/Stand-by Button
7.Function Selector Button
8.CD or Tape Stop, Tuning Down Button
9.CD Play or Pause, Tape Play,
Tuning Up Button
10.Bass/Treble Selector Button
11.Memory/Set Button
12.Tape Record Pause Button
13.CD Track Down or Fast Reverse, Tape Rewind,
Tuner Preset Down Button
14.CD Track Up or Fast Forward, Tape Fast Forward,
Tuner Preset Up Button
15.Timer Play Indicator
16.Tape Record Indicator
17.Sleep Indicator
18.CD Random Play Indicator
19.Memory Indicator
20.RDS Indicator
21.Traffic Programme Indicator
22.Traffic Announcement Indicator
23.FM Stereo Mode Indicator
24.FM Stereo Receiving Indicator
25.Surround Indicator
26.CD Play Indicator
27.CD Repeat Play Indicator
28.CD Digital Output Socket
29.AC Power Input Socket
30.FM 75 Ohms Aerial Socket
31.AM Loop Aerial Socket
32.Video/Auxiliary (Audio Signal) Input Sockets
33.Speaker Terminals
1
2
3
4
5
25
29
6
10
789
11 12 13 14
32
33
30
31
28
15 17 18 19 23
27
26 24
16 20 21 22
1.Tweeter
2.Woofer
3.Speaker Wire
4.Bass Reflex Duct
5.Remote Control Transmitter
6.Clock Button
7.On/Stand-by Button
8.CD Button
9.Tuner and Band Selector Button
10.Clear Button
11.Memory Button
12.CD Track Down, Tuner Preset Down Button
13.CD Fast Reverse, Tuning Down,
Tape Rewind Button
14.CD or Tape Play Button
15.Surround Button
16.CD or Tape Stop Button
17.Volume Up and Down Buttons
18.Bass Up and Down Buttons
19.RDS Programme Type/
Traffic Information Search Button
20.Timer Button
21.Sleep Button
22.Video/Auxiliary Button
23.Tape Button
24.Repeat Button
25.Random Button
26.CD Track Up, Tuner Preset Up Button
27.CD Fast Forward, Tuning Up,
Tape Fast Forward Button
28.Tape Record Pause Button
29.CD Pause Button
30.Treble Up and Down Buttons
31.RDS Display Mode Selector Button
32.RDS ASPM (Auto Station Programme Memory) Button
Buttons with " " mark in the illustration or highlighted in bold on
the right can be operated on the remote control only.
5
6
17
18
19
720
30
21
22
23
25
26
27
28
29
24
8
9
10
11
12
13
14
16
31
32
32
1
4
15
Speaker grilles are removable:
Make sure nothing comes into contact with the
speaker diaphragms when you remove the speak-
er grilles.
XL-65H

XL-55H/65H
– 6 –
1 Top Cabinet 1. Screw .................. (A1) x5 6-1
2. Socket ................. (A2) x2 6-1,3
2 Side Panel (Left/Right) 1. Screw .................. (B1) x4 6-1
3 Rear Panel 1. Screw .................. (C1) x3 6-1
2. Screw .................. (C2) x2 6-2
4 Power Amp. PWB 1. Screw .................. (D1) x1 6-2
2. Socket ................. (D2) x1
3. Socket ................. (D3) x1
5 Main PWB/ 1. Screw .................. (E1) x4 6-3
Headphones PWB 2. Socket ................. (E2) x4
3. Socket ................. (E3) x1
6 Front Panel 1. Screw .................. (F1) x2 6-4
2. Socket ................. (F2) x2
7 Power PWB 1. Screw .................. (G1) x5 6-4
8 Tape Mechanism 1. Open the cassette holder 6-5
2. Screw .................. (H1) x4
9 Display PWB 1. Knob .................... (J1) x1 6-5
2. Screw .................. (J2) x8
10 CD PWB(Note)/ 1. Screw .................. (K1) x4 7-1
Open Close Switch 2. Screw .................. (K2) x2
PWB 3. Socket ................. (K3) x3
11 CD Mechanism 1. Screw .................. (L1) x3 7-2
DISASSEMBLY
STEP REMOVAL PROCEDURE FIGURE
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 offnylon bandsorwire holderswherethey need to
beremovedwhendisassemblingtheunit.Afterservicing
theunit, besure torearrange the leadswhere they were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
(E1)x1
ø3x10mm
(E1)x1
ø3x10mm
(E1)x1
ø3x10mm
(E1)x1
ø3x10mm
(E2)x2
(A2)x1
(E2)x2 (E3)x1
Main PWB
Power PWB
Tape
Mechanism
PWB Headphones
PWB
Side Panel
(Right)
Rear Panel
(C1)x1
ø3x10mm
(C1)x2
ø3x10mm
Side Panel
(Left)
(A1)x1
ø3x10mm
(A1)x2
ø3x10mm
(A1)x1
ø3x10mm
(A1)x1
ø3x10mm
(A2)x1
(B1)x2
ø3x10mm
(B1)x2
ø3x10mm
Top Cabinet
CD PWB
(C2)x2
ø3x10mm
(D1)x1
ø3x10mm
(D2)x1
Rear Panel
(D3)x1
Main PWB
Power Amp. PWB
Power PWB
(G1)x4
ø4x10mm
(F1)x1
ø3x10mm (F1)x1
ø3x10mm (G1)x1
ø3x10mm
(F2)x1
(F2)x1
Power
PWB
Front Panel
Figure 6-1
Figure 6-2
Figure 6-3
Figure 6-4
Note:
After removing the connector for the optical pickup from the
connector,wraptheconductivealuminiumfoilaroundthefrontend
of the connector so as to protect the optical pickup from electro-
static damage.
(J2)x8
ø2.6x10mm
(H1)x4
ø2.6x10mm
(J1)x1
Front Panel Display PWB
Tape
Mechanism
Open
Cassette
Holder
Figure 6-5

– 7 –
XL-55H/65H
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 8 of the disassembly method to
remove the tape mechanism. (See page 6.)
How to remove the record / playback and erase
heads (See Fig. 7-3.)
1. Remove the screws (A1) x 2 pcs., to remove the erase
head.
2. Remove the screws (A2) x 2 pcs., to remove the record/
playback head.
Note:
After replacing the heads and performing the azimuth
adjustment, be sure to apply screwlock.
How to remove the pinch roller (See Fig. 7-4.)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (B1) x 1 pc.,
upwards.
How to remove the belts (See Fig. 7-5.)
1. Remove the main belt (C1) x 1 pc., from the motor pulley.
2. Remove the FF/REW belt (C2) x 1 pc., from the REW/FF
roller.
3. Put on the belts in the reverse order of removal.
Note:
Whenputtingonthebelt,ascertainthatthebeltisnottwisted,
and clean it.
How to remove the motor
(See Fig. 7-6.)
1. Remove the main belt.
2. Remove the screws (D1) x 2 pcs., to remove the motor
bracket.
3. Remove the screws (D2) x 3 pcs., to remove the motor.
Note:
Whenmountingthemotor,payattentiontothemotormounting
angle.
<A>
Pinch Roller
(B1)x1 Pinch Roller
Pawl
REMOVING AND REINSTALLING THE MAIN PARTS
Main Belt
(C1)x1
FF/REW Belt
(C2)x1
REW/FF
Clutch
Motor
Erase Head
Record/
Playback Head
(A1)x2
ø2x8mm
(A2)x1
ø2x3mm
(A2)x1
ø2x7mm
(D1)x1
ø2x4mm
(D2)x3
Special
Screw
Motor
Bracket
Motor
Motor
(D1)x1
ø2x4mm
(K1)x4
ø2.4x10mm
(K2)x1
ø2.6x10mm
(K2)x1
ø2.6x10mm
(K3)x2
(K3)x1
Top Cabinet
CD PWB
Open/Close
Switch PWB
Jack
PWB
CD Mechanism
Figure 7-1
Figure 7-3
Figure 7-4
Figure 7-5
Figure 7-6
Figure 7-2
(L1)x3
ø2.6x10mm
Top Cabinet
CD Mechanism

XL-55H/65H
– 8 –
How to remove the pickup (See Fig. 8-3)
1. Remove the mechanism cover, paying attention to the
pawls (A1) x 4 pcs.
2. Remove the screws (A2) x 2 pcs., to remove the shaft (A3)
x 1 pc.
3. Remove the stop washer (A4) x 1 pc., to remove the gear
(A5) x 1 pc.
4. Remove the pickup.
CD MECHANISM SECTION
Perform steps 1, 10 and 11 of the disassembly method to
remove the CD mechanism. (See page 6.)
Pickup Unit
(A2) x2
ø2.6 x6mm
(A1) x2
CD Mechanism
Shaft
(A3) x1
Gear
(A5) x1
StopWasher
(A4) x1
Mechanism Cover
(A1) x2
How to remove the tape mechanism PWB
(See Fig. 8-2.)
1. Remove the screw (F1) x 1 pc., to remove the tape
mechanism PWB.
2. Remove the screws (F2) x 1 pc.
3. Remove the solder joints (F3) x 2 pcs., to remove the tape
mechanism PWB.
How to remove the flywheel (See Fig. 8-1.)
1. Remove the belt.
2.Removethestopwasher(E1)x1pc.,withasmallprecision
screwdriver to extract the flywheel from the capstan metal.
Note:
When the stop washer is deformed or damaged, replace it
with a new one.
How to reinstall the parts
Installeach part inthereverse order oftheremoval with care.
Stop
Washer Driver
(E1)x1
Stop Washer
Mechanism
Chassis
Washerx2
Flywheel
Tape
Mechanism
PWB Tape
Mechanism
PWB
(F3)x2
Solder
Joint
(F2)x1
ø2x8mm
(F1)x1
ø2x3mm
Note:
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.
Figure 8-1
Figure 8-2
Figure 8-3

– 9 –
XL-55H/65H
MECHANISM SECTION
• Driving Force Check
Torque Meter Specified Value
Play: TW-2412 Over 80 g
• Torque Check
Torque Meter
Play: TW-2111 30 to 60 g. cm
Fast forward: TW-2231 55 to 140 g.cm
Rewind: TW-2231 55 to 140 g.cm
Specified
Value
Adjusting
Point Instrument
Connection
Test Tape
ADJUSTMENT
Specified Value
• Tape Speed
TUNER SECTION
MTT-111 Variable 3,000 ±Headphone
resistor in 90 Hz terminal
motor.(M901)
Check Point Instrument
Connection
Display
Frequency
87.5 MHz 87.5 MHz 3.4 V ±1.0 V TP301
108 MHz 108 MHz 7.8 V ±1.0 V TP301
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Frequency Frequency Display Setting/
Adjusting
Parts
Instrument
Connection
IF 450 kHz 1,602 kHz T351 *1
AM Band — 531 kHz (fL): T306 *2
Coverage 1.1 ±0.1 V
AM 990 kHz 990 kHz T302 *1
Tracking
fL: Low-renge frequency
fH: High-renge frequency
Signal generator: 400 Hz, 30%, AM modulated
• AM IF/RF
Adjusting
Parts Instrument Connection
Display
Frequency
98.00 MHz 98.00 MHz VR351*1 Input: CNP301
(30 dBµV) Output: Speaker
Terminal
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
TAPE MECHANISM
M901
Tape
Motor
Variable
resistor
in motor
IC303
IC302
FE301
CF352
R336
T306
VR351
T302
T351
MAIN PWB
FM Mute
Level
AM IF
TP301
CNP301
ANTENNA
SOCKET
FM
AM
SO301
AM
Tracking
AM Band
Coverage fL
Figure 9-1 ADJUSTMENT POINT
Figure 9-2 ADJUSTMENT POINTS
*1. Input: Antenna Output: Speaker terminal
*2. Input: Input is not connected Output: TP301

XL-55H/65H
– 10 –
2. CD Test Mode (TEST 1)
In the CD test mode the operation of each step is enabled even when the LID-SW is off. However, if focus cannot be set in step 3
or any error processing is started, it is impossible to proceed to the next step. When the error processing is started, operations other
thanterminationoftestmodebypressingtheON/STAND-BYbuttonorreturntothestep1bypressingtheSTOPbuttonareinhibited.
1. Step 1 Mode
When the CD test mode is turned on, the following indication lights, the processing (until turning-off of CD STB terminal of CD
initialization operation flow) is executed, and the next button input is waited.
After lighting for one second
If the following operation buttons are pressed in this state, the operation is performed as follows.
"ON/STAND-BY"......The test mode is turned off, the power is turned off, and the ordinary stand-by mode is set.
"FF/FWD".................After the pickup returns once to the innermost periphery, it slides toward the outer periphery while this
button is held down.
"REW/REV"..............After the pickup returns once to the innermost periphery, it slides toward the inner periphery while this
button is pressed. However, if PU-IN is on, input is invalid.
"PLAY" .....................Shift to step 2
"STOP".....................Invalid
"REC PAUSE"..........Shift to step 5
TEST MODE
The test mode applied to this microcomputer has three modes, namely ordinary test mode to be used for adjustment or
measurement, aging test mode to be used for aging test, and self-diagnosis test mode for self-inspection in case of final product
inspection.
1. Turning on the test mode
Toturnonthespecifictestmode,presstheON/STAND-BYbutton,holdingdownthefollowingtwobuttonsintheordinarystand-
bymode (power offstate).Inthiscaseonlythemainunit button isvalid.EvenwhentheON/STAND-BYofremotecontrol button
is set to on, the test mode is not turned on.
[Ordinary test mode]
1. CD Test Mode (TEST 1)…………………… BASS/TREBLE + FF/FWD
2. Tuner Test Mode (TEST 2)………………… BASS/TREBLE + REW/REV
3. Electronic volume Test Mode (TEST 3)……BASS/TREBLE + REC
4. Timer Test Mode (TEST 4)………………… MEMORY/SET + REC
5. LCD Test Mode (TEST 5)……………………MEMORY/SET + REW/REV
MEMORY/SET + PLAY
[Self-diagnosis Test Mode]
1. Button input diagnosis test mode (TEST6).…
• Setting the Test Mode
Keeping the REW/REV button and BASS/TREBLE button
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the PRESET
button to use it for adjustment and check of tuner circuit.
Preset No. FM STEREO Preset No. AM
1 87.50 MHz
2 108.00 MHz
3 98.00 MHz
4 90.00 MHz
5 106.00 MHz
11~25 ––––
6 531 kHz
7 1,602 kHz
8 990 kHz
9 603 kHz
10 1,404 kHz
Preset No. FM MONO
26 106.00 MHz
27 90.00 MHz
28 98.00 MHz
29 108.00 MHz
30 87.50 MHz

– 11 –
XL-55H/65H
The time display indicates always "0:00".
When the following buttons are pressed in this state, the operation is executed as follows.
"ON/STAND-BY" .....The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.
"REW/REV" .............The pickup slidestoward theinnerperiphery whilethis buttonisheld down.However, ifPU-INis on,input
is invalid.
"PLAY".....................Shift to step 5
"STOP" ....................Return to step 1
"REC PAUSE" .........Shift to step 5
*If the focus is disturbed, the process returns to step 1.
4. Step 4 Mode (Only focus "OK" can make this item showing)
TheCLVservoON command (8600)sending operation isperformed, and thenext button inputis waited. (Thedisc is rotated
to perform CLV locking.)
When the following operation buttons are pressed in this state, the operation is executed as follows.
"ON/STAND-BY" .....The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.
"REW/REV" .............The pickup slidestoward theinnerperiphery whilethis buttonisheld down.However, ifPU-INis on,input
is invalid.
"PLAY".....................Ifthe focushasbeen set, shifttostep 4isexecuted. Ifthe focushasnot beenset,acceptance isinhibited.
"STOP" ....................Return to step 1
"REC PAUSE" .........Shift to step 5
*If the focus is disturbed after it has been set, the process returns to step 1.
3. Step 3 Mode
The laser is kept lighting. The processing (until turning-on of CLV servo of CD initialization operation flow) is executed, and
the next button input is waited. (The focus servo is turned on, and focus search is performed.)
The focus search is repeated until the focus is set.
If the following buttons are pressed in this state, the operation is performed as follows.
"ON/STAND-BY" .....The test mode is turned off, the power is turned off, and the ordinary stand-by mode is set.
"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.
"REW/REV" .............The pickup slidestoward theinnerperiphery whilethis buttonisheld down.However, ifPU-INis on,input
is invalid.
"PLAY".....................Shift to step 3
"STOP" ....................Return to step 1
"REC PAUSE" .........Shift to step 5
2. Step 2 Mode
When the "PLAY" button is pressed in this mode, the laser lighting command LDON (8400) is sent, and the laser is turned on.
Other operations are not performed.
* In case of initialization the pickup is moved toward the inner periphery. Any buttons other than ON/STAND-BY button are not
accepted until the shift of pickup to the inner periphery is completed at this time. If PU-IN SW ON cannot be detected within
10 seconds, the slide motor is stopped, and the following error indication appears. Press the ON/STAND-BY button to end
the test mode, or press the STOP button to return to step 1. Any other operations are inhibited.

XL-55H/65H
– 12 –
3. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
The tuner test mode is intended to store the adjustment and measurement frequencies in the preset memory CH without
frequency setting by adjusting personnel when the tuner section is adjusted in the production line.
2. Details of tuner test mode
When the power is turned on by using the ON/STAND-BY button while the BASS/TREBLE and REW/REV buttons are held
down in POWER OFF state, the frequency for adjustment and measurement of destination specified by the AREA terminal
is preset and stored in the preset memory CH. However, Ordinary 1 and Ordinary 2 are set to the designation (destination
selected by SPAN switching operation) set when the test mode is obtained.(Memory/Set+Function Key Span Charged) (As
for frequencies to be preset and stored for each destination, refer to item 3.)
The tuner test mode is started from preset No.1.
The operations of test mode are identical with the ordinary operations of TUNER function. However, FUNCTION switching
is invalid.
Since it is necessary to discard the content of preset memory when the tuner test mode is ended, "0000" or "1111" bits are
writteninthememorytobecheckedincaseofmemorycheck(incaseofinitialsetting)sothatmemoryabnormalityisdetected
in case of initial setting so as to ensure memory initialization.
When the tuner test mode is turned on, the following indication lights for one second.
•
The TUNER TEST2 mode is set as a result of BASS/TREBLE+ REW/REV. -> POWER OFF -> IF AC is set to OFF in the TEST2
mode, the initial state is restored.
When POWER is set to OFF, the memory of TEST2 mode is protected.
When the power is turned on again, the ordinary operation is enabled while the data is stored in the
memory (besides TUNER).
If AC OFF state is maintained in this state for about 1/2 day, start is executed in the initial state.
• To clear the whole memory, insert the AC cord, holding down MEMORY + STOP.
When the following operation buttons are pressed in this sate, the operation is executed as follows.
"ON/STAND-BY"......The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD".................The pickup slides toward the outer periphery while this button is held down.
"REW/REV"..............The pickup slidestowardthe innerperipherywhile thisbutton isheld down. However,if PU-IN ison,input
is invalid.
"PLAY" .....................Invalid
"STOP".....................Return to step 1
*If the focus is disturbed, the process returns to step 1.
Other cautions
• TOC IL is not executed in the test mode.
• As for button operations other than those shown above, only the sound volume operation (with JOG) is accepted.
5. Step 5 Mode
The CD initialization operation flow is executed to the end, the mute is set to off, and playback is started. Even when the
playback reaches the outermost periphery of disc, the operation does not stop. The LCD display indicates the playback past
time as in case of ordinary CD playback.

– 13 –
XL-55H/65H
3. Preset frequencies for various destinations (random preset memory)
BAND
16-25
26 FM106.00 MHz
27 FM 90.00 MHz
28 FM FM 98.00 MHz
29 MONO FM108.00 MHz
30 FM 87.50 MHz
Europe 2, 4
CH
BAND
1 FM 87.50 MHz
2 FM108.00 MHz
3 FM FM 98.00 MHz
4 STEREO FM 90.00 MHz
5 FM106.00 MHz
Europe 2, 4
CH BAND
6 AM 531 kHz
7 AM1602 kHz
8 AM AM 990 kHz
9 AM 603 kHz
10 AM1404 kHz
11-15 LW
Europe 2, 4CH
• The hatched sections of the table are not stored in memory.
4. Electronic volume Test Mode (TEST 3)
When the test mode is set, the following indication lights for one second.
When this mode is set, BASS/TREBLE is set to 0 (0 dB) and start-up function is set to CD when volume is -14 dB (STEP 23).
The button operations in the test mode are the same as those of ordinary operation excepting sound volume UP/DOWN.
(1) The indication is the same as that of ordinary operation excepting test mode setting.
(2) The sound volume control with the sound volume UP/DOWN button is only the following 3 steps unlike the ordinary state.
Volume- ∞(STEP 0) <-> Volume-14 dB (STEP 23) <-> Volume-0 (STEP 30)
(3) BASS/TREBLE is switched when button operation is performed.
The current time and timer time are set in the following procedure to perform the timer playback.
1.Setthecurrenttimeto1:00,setthetimertoONtime1:05,setthefunctiontoAux,andsetvolumeSTEP12.Oneminuteiscounted
as one second, and the timer playback operation is performed. The fade-in (when playback is started) is executed at a rate of
onestep for 1sec. Aftercompletionof fade-in thefade-out isexecutedat a rateof onestepfor 1 sec(WAIT 1secinserted). After
completion of fade-out the power is turned off (after WAIT 1 sec), and the mode is changed to the standby mode.
The indication during operation is the same as that of ordinary timer operation.
5. Timer test Mode (TEST 4)
When the test mode is set, the following indication lights for one second.
6. LCD Test Mode (TEST 5)
When the LCD test mode is set, all the LCD segments are lighted. After that the indication is changed as follows according to
the "PLAY" button input.
Lighting of all segments Lighting of odd segments Lighting of even segments

XL-55H/65H
– 14 –
7. Key input diagnosis Test Mode (TEST 6)
When the test mode is set, the following indication appears.
ERROR LIST
PU-IN SW detection error
CD read error
Error content ........... Disc data cannot be read properly or
even if it can be read, the disc is not a
playable one.
Probable cause....... Thediscisloadedupsidedown,notCD-
DA, scratches, stains, etc.
Action ...................... Open the CD lid, then reload the disc
correctly.Removethescratchesorstains
on the disc.
NO DISC
Tape mechanism error 1
Tape mechanism error 2
Error content ............The detection SW cannot detect ON
after a fixed period of time even if the
microcomputer controls the CD pickup
to return to the innermost position.
Probable cause........Defective or poorly connected PU-IN
SW or slide motor.
Action .......................Solvetheproblemandturnonthepower
again.
Error content ........... Focusing is impossible.
Probable cause....... Thediscisloadedupsidedown,notCD-
DA, scratches, stains, etc.
Action ...................... Open the CD lid, then reload the disc
correctly.Removethescratchesorstains
on the disc.
Error content ........... The detection SW "CAM-SW" cannot
detectON(mechanisminoperation)even
if the motor and solenoid are controlled
to play back, fast forward, rewind, or
record the tape.
Probable cause....... Mechanism is in operation when this
message appears: Defective or poorly
connectedCAM-SW.Mechanismstops:
Defective or poorly connected motor or
solenoid.
Action ...................... Solvetheproblemandturnonthepower
again.
Error content ........... Initialization cannot be completed when
the microcomputer controls the motor
and solenoid to initialize the tape
mechanism(tosetthemechanismtothe
stop mode). The detection SW "CAM-
SW" cannot detect OFF While the
mechanism is in operation.
Probable cause....... Mechanism is in operation when this
message appears: Defective or poorly
connectedCAM-SW.Mechanismstops:
Defective or poorly connected motor or
solenoid.
Action ...................... Solvetheproblemandturnonthepower
again.
This test mode is intended to check whether all the main unit buttons can be detected. Accordingly, in this test mode checking
astowhetherthe"ON/STAND-BY"buttonwaspressedafterallthebuttonsshownbelowwerepressedisperformed.Iftheresult
isOK,OKisindicated.Evenanyoneofkeyswasnotpressed,anerrorisindicated.IncaseofOKterminationorerrortermination
exit from this mode occurs when the "ON/STAND-BY" button is pressed next time, and the standby mode is set.
1. In case of "MEMORY/SET" + "PLAY"+ "ON/STAND-BY"
Since SURROUND and RDS are not provided, the following 9 buttons are detected as all buttons.
PLAY, ON/STAND-BY, BAND, BASS/TREBLE, FUNCTION, MEMORY/SET, REC PAUSE, REW, FF, STOP.
The OK/NG indication of test result is as follows.

– 15 –
XL-55H/65H
SW700 VOLUME ON—OFF
SW701 ON/STAND-BY ON—OFF
SW702 FUNCTION ON—OFF
SW703 STOP/CLEAR,TUNING DOWN ON—OFF
SW704 PLAY/CD STOP,TUNING UP ON—OFF
SW705 BASS/TREBLE ON—OFF
SW706 MEMORY/SET ON—OFF
•The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis 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.
( ) indicates the record state.
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.
NOTES ON SCHEMATIC DIAGRAM
•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 micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolyticcapacitor,theexpression“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.
REF. NO DESCRIPTION POSITION POSITIONREF. NO DESCRIPTION
SW707 REC/PAUSE ON—OFF
SW708 REW/PRESET DOWN ON—OFF
SW709 FF/PRESET UP ON—OFF
SW800 PICKUP IN ON—OFF
SW801 CD LID OPEN/CLOSE ON—OFF
SW901 FOOL PROOF ON—OFF
SW902 CAM ON—OFF
ECB
(S)(G)(D)
(1) (2) (3)
FRONT
VIEW
FRONT
VIEW
BCE
FRONT
VIEW
2HA1015 GR
2HC1815 GR
2SC2001 K
2SC380 O
2SK2541
HSB562 C
KRA102 M
KRC102 M
KRC104 M
KRA107 M
KRC107 M KTC2026 Y MPG3372X SVC348S
1 2 3
TYPES OF TRANSISTOR AND LED
Figure 15 TYPES OF TRANSISTOR AND LED

XL-55H/65H
– 16 –
REC MUTE
Q105
Q106 REC
150K
150K
MUTE ALC
+
-
-
+
3 1
5
11 12
8
10
2
IC102
BA3311L
6 7
9
NF
L-IN
R-IN
NF
L-OUT
ALC
R-OUT
Q151 Q152
L151
Q153
Q171 Q172 REC
SWITCHING
Q101-Q104
SWITCHING
1
IC101
IC101
HEAD SELECTOR
BA3126N
2
3
4
5
6
9
REC SW
P/B SW
CONT
P/B SW
REC SW
8
7
A-12V
L-CH
R-CH
R-CH
L-CH
L-CH
L-CH
A-GND
A-GND
A-GND
R-CH
R-CH
ERASE
CNP101
CNS101
CNS901
P.F
CAM SW
Q906
BIAS
REC
RUN_PLS SURROUND
MOT SOL U_CON 5V D-GND
A_12V TAPE SW
1
2
3
4
5
6
7
CNP901
PHOTE INTERRUPTER
SW901
FOOL
PROOF
SW902
CAM
1
2
+
-
2
1
M
M901
TAPE MOTOR
SOLENOID
SOL901
R
E
T
A
TO DISPLAY PWB
Q904
Q902
A_12V
A_12V
SWITCHING
B-CAN(NC)
10 10
123456789
CNP703
M_GND
Q903
Q905
Q901
REC BIAS
CONT
SWITCHING
SWITCHING
RUN PLS
SOL
M_12V
U_CON5V
MOT
SWITCHING
SWITCHING
SWITCHING
TAPE MOTOR
DRIVER
SOLENOID
DRIVER
BIAS OSC SWITCHING
1
2
3
4
5
6
7
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
L-CH
R-CH
ERASE
HEAD
RECORD/
PLAYBACK
HEAD
IC102
REC./P.B.
EQUALISER
AMP.
S
T
CF352 CF351
FM IF
24 22
21 20 19
18 17
16
15
14
13
12
11
10
9
8
7
6
5
4321
IC303
LA1832S
22
21
20 17
16
15
14
13
12
1 2 3 4 5 6 7 8
8
9
7
10
6
11
5
12
4
13
3
14
2
15
1
16 9 10
11
IC302
LC72131
IC521
LC72723M
X352
X351
456kHz
L354
LOWPASS
FILTER
X IN NC CE DI CL
MO/ST
FM
FM
DO
CE DI CL DO
FM IN
X OUT
DATA
CLE
VSS
AOUT
VDD
AM IN
NC
IF IN
IF REQ
SW
VCC
AM ANT
AM OSC.
VD301-1
SVC348S
VD301-2
SVC348S
VR351
10K(B)
FM MUTE LEVEL
23
T351
+5V
AM IF
MUTE
R-MUTE
MO/ST
L-CH OUT
R-CH OUT
MPX VCO
AM LOW CUT
FM/AM OUT
MPX IN
AM OSC OUT
FM AFC
AM RF IN
VSM
AM OSC INAM MIX OUT
AM IF IN GND REG FM IF IN
SD
STEREO
FM DET
PHASE
(AM/FM)
IF OUT
PHASE
FM IF DET./FM MPX./AM IF
FE301
FM FRONT END
4.5MHz
X521
456 kHz
Q351
SWITCHING
R_MUTE
PLL TUNER
RDS
ZD351
Q360
FM+B
FM+B
A_12V
FM IF
AM OSC OUT
AM MIX OUT
A_GND
+5V
+5V
A_12V
D_GND
AM IF IN
T302
T306
1
2
3
CF302
1
2
3
21345678
10.7MHz
FM IF
CF301
1
2
3
10.7MHz
TP301
1
2
AM
FM
CNP301
SO301
FM
ANTENNA
SOCKET
L341
BALUN
Q301
Q521
XL-65H ONLY
Figure 16 BLOCK DIAGRAM (1/4)

– 17 –
XL-55H/65H
105
106 REC
CD+B
P MUTE
P-STB
P-CONT
123456
CD L
CNP605
TO CD SERVO PWB
U_CON 5V D-GND
A_12V TAPE SW
A_12V
PROTECT
REC L/R CH
TAPE L/R CH
A
Y PWB
TO DISPLAY
PWB
XL-65H ONLY
XL-65H : 12Pin
XL-55H : 9Pin
FROM DISPLAY
PWB
10 10
7
89
SO601
SPEAKER
TERMINALS
J601
HEADPHONES
13
IC601
LA4451
POWER
AMP.
IC681
KIA7805P
12 7
2
13
VCC
3
4
L-IN
R-IN
L-CH OUT
R-CH OUT
P-STB
MUTE
Q602
Q601
Q603A
Q605A
Q609A
VSS
VDD
IC401
LC75342M
IC461
KIA4558P
OPE AMP.
15 14 13 12 11 10 9
17 18 19 20 21 22 23 24 25 26 27 28 29
16
8 7 6 5 4 3
4321
5678
2 1
CE DI
30
CL
LOGIC
TUN L
TAPE L
CD L
AUX L
AUX R
TAPE R
TUN R
CD R
CNS704
SO401
VIDEO/AUX IN
TO
DISPLAY
PWB
Q607
Q461Q463
Q605
Q604
Q606
Q608
Q603
Q683
Q609
VOLTAGE
REGULATOR CD+B
CD_6.2V
MECHA 12V
(M_12V)
AUDIO 12V
(A_12V)
R-CH OUT
L-CHOUT A_12V
A_12V
USWD_5R6V
D_GND
A-GND
CD R D-GND
CD_6.2V
M_GND
L-CH
L-CH
+
+
3
2
1
GND
T.F
D651~D654
D656~D659
RLY681
D656~D659
VOLTAGE REGULATOR
SO651
AC POWER
INPUT SOCKET
AC230V,50Hz
CNP707
T651
POWER
TRANSFORMER
(MAIN)
T681
POWER
TRANSFORMER
(SUB)
F651
T3.15A L250V
F652
T1.25A L250V
9
2
5
11
CNP652
1
2
CNP680
1
2
GND
GND
CNS652
1
2
REC R CH
REC L CH
NC
FUNCTION/VOLUME EQUALISER
SURROUND
STEREO
SD
R
-MUTE
M
UTE
6
0A_12V
A_12V
CE
DI
CL
DO
FM ST
SD
1
2
3
4
5
6
7
8
9
10
VSM
RDS DATA
RDS CLK
11
12
LINE
FILTER
LF651
Figure 17 BLOCK DIAGRAM (2/4)

XL-55H/65H
– 18 –
Figure 18 BLOCK DIAGRAM (3/4)
CNP702
CNS605
CNP605
CLID SW
GVSW
PICK_IN
BLKCK
MDATA
MCLK
MLD
MRST
CD STB
STAT
TO MAIN SECTION
TO MAIN SECTION
TO MAIN SECTION
TO AMP. SECTION
D701~709
LED
SW700
VOLUME
C
C
D
A
C
M
M
_
6
5
4
3
3
2
5
6
4
1
2
1
7
8
9
10
1
4
514 38
100 67
Q707
Q701 Q702
Q703
Q706
M_
G
SW801
CD LID
OPEN/CLOSE
~ ~
~39 42 ~
SEG0
SEG33
COM0
COM3 65
65
64
63
62
61
60
59
58
33
50
49
26
27
28
25
46
45
44
43
22 222930313435363938 5142 47 41
MRST
MCLK
STAT
BLBCK
MDATA
MLD
PU_IN
CD_STB
21
15
14
11
5 VLC3
8VDD
MMOD
VREF
USWD_5.6V
VSS
13
12
10
9
18
17 KEY1
KEY2
SW702-SW704
SW701
SW707-SW709
SW705,SW706
KEY
POWER
37 9
8
7
6
5
4
3
2
1
1
2
SD
STEREO
DO
CL
CE
DI
CD+B
P_MUTE
P_STB
SURROUND
SD
STEREO
CL
DO
DI
CE
P_MUTE
P_STB
CD+B
SURR
10
11
9
8
7
6
5
4
3
2
1
TAPE_SW
D_GND
D_GND
SOL
MOT
REC
RUN_PLS
BIAS
B_CAN
A–12V
A–12V
PROTECT
U_CON5V
TAPE_SW SOL
MOT REC
RUN_PLS BIAS
B-CAN
CLID_SW
GVSW
BACK_LIGHT
SWITCHING
JOG_UP P_CONT JOG_DOWN
REMOCON
SYS_STOP
SYS_STOP
1 2 3
REMOTE
SENSOR
GP1U281X
RX701
3
1
2
24
7
6
VLC1
VLC2
VREF+
23 11
40
48
13
12
CLE
DATA
VSM
CLE
DATA
VSM
IX0060SJ
SYSTEM CONTROL
MICROCOMPUTER
XL-65H ONLY
8MHz
32.768MHz IC701
LCD701
X701
X702
CNS704
XL-65H : 12Pin
XL-55H : 9Pin
CNS680
CNP704
CNP703
CNP680
CNS703
CNS707
TO POWER

– 19 –
XL-55H/65H
Figure 19 BLOCK DIAGRAM (4/4)
CNP702
CNS605
CNP605
CLID SW
GVSW
PICK_IN
BLKCK
MDATA
MCLK
MLD
MRST
CD STB
STAT
NM801
SLED
MOTOR
NM802
SPINDLE
MOTOR
MM
TRACKING COIL
FOCUS COIL
PICKUP UNIT
VCC
GND
MON
LD
1/2V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
TO MAIN SECTION
TO MAIN SECTION
TO MAIN SECTION
TO AMP. SECTION
CD_R
CD_L
D_GND
D_GND
D_GND
D_GND
A_GND
CD_6.2V
CD_6.2V
+6.2V
+6.2V
M_GND
M_GND
M_GND
M_GND
6
5
4
3
3
2
5
6
4
1
3
2
1
2
1
7
8
9
10
Q801
Q804
LASER
DRIVER
CONSTANT
VOLTAGE
SW800
PICKUP IN
M_GND
SW801
CD LID
OPEN/CLOSE
80 79 78 77 76 75 74 73 72 71 70
40
39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 22 21
44 45 50 51 57 58 59 60
13 9 8 7
6
4
18 17 16 14
SSEL
MSEL
PSEL
CSEL RSEL
OUTR
AVSS1
OUTL
AVDD1
/TEST
IOSEL
VDD
J801
DIGITAL
OUT
X2
X1
VSS
AVSS2
AVDD2
IREF
ARF
TBAL LD BDO /RFDET TRCRS OFT VDET RFENV TE FE FBAL VREF FOO TRO KICK ECS ECM TVD TVR
/RST
STAT
DMUTE
SQCK
BLKCK
MLD
MDATA
MCLK
TX
DVDD1
5
DVSS1
32
31
30
29
28
27
26
25
24
23
1
2
3
4
5
6
7
8
9
10
16
15
14
13
12
11
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14 15
17
16
18
19
20
21
22
23
24
25
26
27
28
PO1–
PO1+
VO3–
VO3+
VIN3
VG3
VCC
VCC
BIAS
VG4
VIN4
VO4+
VO4–
OPO
VO2–
VO2+
VIN2
VG2
GND
GND
GND
MUTE
REG O
TRB
VG1
VIN1
VO1+
VO1–
VREF
VDET
TEBPF
TEOUT
TEN
FEN
FEOUT
GCTL
FBAL
TBAL
E
E
F
F
D
B
B
C
C
A
A
GND
NRFDET
OFTR
CBDO
CDFTR
BDO
3TOUT
CEA
ARF
CACC
RFIN
RFOUT
RFN
VCC
LD
PD
9
8
7
6
5
4
3
2
1
1
2
D
O
O
C
L
E
D
I
B
T
E
T
B
10
11
9
8
7
6
5
4
3
2
1
11
13
12
L
E
T
A
M
MN6627482W
SERVO/SIGNALCONTROL
AN22000A
HEAD AMP.
MM1469XH
FOCUS/TRACKING/
SPIN/SLED DRIVER
16.93MHz
IC801
IC802
IC804
X803
CNS704
X
L-65H : 12Pin
X
L-55H : 9Pin
CNS680
CNP704
CNP703
CNP680
CNS703

XL-55H/65H
– 20 –
A
B
C
D
E
F
G
H
123456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 15.
24 23 22 21
1 2 3
22 21 20
1 2
CHASSIS
GND
AM
ANTENNA
FM
75 OHMS
FM ANTENNA
SOCKET
2
1
(CH)
(UJ)
VT
AM RF
REG
AM MIX OUT
OUT
IN
IN
IN
FM IF
FM AFC
AM OSC AM OSC
AOUT
VSS
X OUT
X IN
AM ANT
AM OSC
AM TRACKING FM MUTE LEVEL
AM BAND COVERAGE fL
FM IF
FM IF
A
M
1
TP301
2
3
1
2
3
8 7 6 5 4 3 2 1
MAIN PWB-A1(1/3) TUNER SECTION
0.001
0.001
0.001
0.022
0.001
68K
27P
560P
0.022
0.022
1N4148
1N4148
1N4148
1N4148
BALUN
0.047
0.022
12P
SVC348S
1mH
8.2K
33P
0.022
3.3/50
0.022
330P
33P
10/16
0.022 5.6K
10K
330
330
0.022
10K
1/
5
15P(CH)
0.001
4.5MHz
1K
LC72131
PLL(TUNER)
12P(CH)
0.022
FM FRONT END
68
82
2.2µH
0.022
2SC380 O
33
680
6.8K
330
0.022
680
180
0.022
4.7K 100/16
0.022
CNP301
C376
C301
C388
C390
C302
T306
R323
C334
C335
C337
C329
D301
D303
D304
D302
L341
T302
C331
C332
C330
VD301
VR351
L353
R358
C343
C361
C362
C360
C363
T351
C378
CF302
C344
C352
C351 R351
R336
R382
R386
C397
C394
R381
C
3
C382
C384
R374
IC302
X352
C381
C350
L342
C346
C345
R369A
R369B
R345 C348
R343
C341
C347
R346
CF301
R344
R348
R347
R349 Q301
SO301
FE301
5V
2.1V
2.1V
5V
2.5V
(2.7V)
2.1V
(2.7V)2.1V
2.6V2.6V
0V
01V
+B
+B
+B
9V
9.5V
0.8V
2.5V
Figure 20 SCHEMATIC DIAGRAM (1/12)
XL-55H