Sharp XL-505H Schematic

0 (0)

XL-505H,505E,507E/CP-505,505E,507

SERVICE MANUAL

No. S7752XL505HE/

Illustration: XL-505H/CP-505

• Note for users in UK

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-505H

XL-505E

XL-507E

CP-505

CP-505E

CP-507

XL-505H and CP-505 constitute XL-505H.

XL-505E and CP-505E constitute XL-505E.

XL-507E and CP-507 constitute XL-507E.

•In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

CONTENTS
	Page
SAFETY PRECAUTION FOR SERVICE MANUAL ..........................................................................................................	2
IMPORTANT SERVICE NOTES (XL-505E FOR UK/XL-507E ONLY) .............................................................................	3
SPECIFICATIONS ............................................................................................................................................................	3
NAMES OF PARTS ..........................................................................................................................................................	4
OPERATION MANUAL .....................................................................................................................................................	6
DISASSEMBLY .................................................................................................................................................................	7
REMOVING AND REINSTALLING THE MAIN PARTS ....................................................................................................	8
ADJUSTMENT ..................................................................................................................................................................	9
BLOCK DIAGRAM ..........................................................................................................................................................	16
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................	20
VOLTAGE .......................................................................................................................................................................	26
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................	27
TYPE OF TRANSISTOR AND LED ................................................................................................................................	27
WAVEFORMS OF CD CIRCUIT .....................................................................................................................................	28
TROUBLESHOOTING (CD SECTION) ..........................................................................................................................	29
FUNCTION TABLE OF IC ..............................................................................................................................................	34
LCD SEGMENT ..............................................................................................................................................................	41
REPLACEMENT PARTS LIST/EXPLODED VIEW
PACKING OF METHOD (XL-505E FOR UK/XL-507E ONLY)

SHARP CORPORATION

– 1 –

XL-505H,505E,507E/CP-505,505E,507

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 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)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.

(XL-505H)

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO

BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA

EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I

STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE.

ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD.

STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT

INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE

INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

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 A NV ÄN DAR EN U TSÄ TT AS F ÖR OS YNL IG LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN FÖR LASERKLASS 1.

(XL-505E/507E)

LASER KLASSE 1 LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT

– 2 –

XL-505H,505E,507E/CP-505,505E,507

IMPORTANT SERVICE NOTES (XL-505E FOR UK/XL-507E ONLY)

Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand 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 buzzor sounds.

WITHSTANDING

VOLTAGE TESTER

PROBE

OUT
-		UNIT


SHORT-CIRCUIT		CONNECT THE PROBE
AC POWER		TO GND TERMINOF CHASSISL
SUPPLY CORD		OF PHONO TERMINAL
		SCREW

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.

SPECIFICATIONS

XL-505H/505E/507E

General

Power source:	AC 230 V, 50 Hz
Power consumption:	52 W
Dimensions:	Width; 160 mm (6-5/16")
	Height; 240 mm (9-1/2")
	Depth; 250 mm (9-7/8")
Weight:	2.6 kg (5.7 lbs.)
Amplifier section
Output power:	PMPO; 28 W (total)
(XL-505H/505E)	MPO; 14 W (7 W + 7 W) (DIN 45 324)
	RMS; 10 W (5 W + 5 W) (DIN 45 324)
Output power:	MPO; 14 W (7 W + 7 W) (10 % T.H.D.)
(XL-507E)	RMS; 10 W (5 W + 5 W) (10 % T.H.D.)
Output terminals:	Speakers; 4 ohms
	Headphones; 16-50 ohms
Tuner section	(recommended; 32 ohms)
Tuner section
Frequency range:	FM; 87.5 - 108 MHz
	AM; 522 - 1,620 kHz
Compact disc player section
Type:	Compact disc player
Signal readout:	Non-contact, 3-beam semi-conductor
	laser pickup
D/A Converter:	1-bit D/A converter
Filter:	8-times oversampling digital filter
Frequency response:	20 - 20,000 Hz
Wow and flutter:	Unmeasurable
	(less than 0.001% W.peak)

Cassette deck section

Frequency response:	50 - 14,000 Hz (Normal tape)
Signal/noise ratio:	55 dB
(XL-505H/505E)
Signal/noise ratio:	50 dB
(XL-507E)
Wow and flutter:	0.3 % (DIN 45 511)
(XL-505H/505E)
Wow and flutter:	0.25 % (WRMS)
(XL-507E)

CP-505/505E/507

Type:	Full range speaker system
Speakers:	10 cm (4") full-range speaker
Rated input power:	5 W
Maximum input power:	10 W
Impedance:	4 ohms
Dimensions:	Width; 145 mm (5-3/4")
(CP-505/507)	Height; 240 mm (9-1/2")
	Depth; 183 mm (7-1/4")
Dimensions:	Width; 145 mm (5-3/4")
(CP-505E)	Height; 240 mm (9-1/2")
	Depth; 133 mm (5-1/4")
Weight:	1.1 kg (2.4 lbs.)/each
(CP-505/507)
Weight:	1.0 kg (2.2 lbs.)/each
(CP-505E)

Specifications for this model are subject to change without prior notice.

– 3 –

XL-505H,505E,507E/CP-505,505E,507

NAMES OF PARTS

XL-505H/505E/507E

Front Panel

1.Function/Band/Track Number Indicator

2.Volume Indicator

3.Timer Indicator

4.Record Indicator

5.Sleep Indicator

6.Repeat Indicator

7.Play Indicator

8.Extra Bass/Equalizer Indicator

9.Random Indicator

10.Memory Indicator

11.FM Stereo Mode Indicator

12.FM Stereo Indicator

13.CD Compartment

14.On/Stand-by Switch

15.Remote Control Sensor

16.Record Pause/Beat Cancel Button

17.Memory/Set Button

18.(CD) Track Down/Review Button (TAPE) Rewind Button

(TUNER) Preset Down Button

19.Headphones Socket

20.CD Eject Button

21.Function Selector Button

22.Band Selector Button

23.Extra Bass/Equalizer Mode Button

24.Volume Up/Down Buttons

25.(CD) Play/Pause Button (TAPE) Play Button (TUNER) Tuning Up Button

26.(CD/TAPE) Stop Button (TUNER) Clear Button

27.(CD) Track Up/Cue Button (TAPE) Fast Forward Button (TUNER) Preset Up Button

28.Cassette Compartment

Rear Panel

1.AC Power Input Socket

2.FM/AM Loop Aerial Socket

3.Speaker Terminals

1	2	3	4	5
	VOL		REC SLEEP

	EQ	kHz
	EQ	MHz
		MHz

			RANDOM	MEMORY	ST
6	7	8	9	10	11 12
13					20
14					21
14
15					22
15					23
16					23
16					24
					24
17					25
18					26
18					27
19					27
19
					28

– 4 –

CP-505/505E/507

Speaker Section

1.Full-Range Speaker

2.Bass Reflex Duct

3.Speaker Wire

XL-505H/505E/507E

Remote Control

1.Remote Control Transmitter LED

2.On/Stand-by Button

3.(CD) Repeat/Random Button

4.(CD/TUNER) Memory/Set Button

5.(CD/TUNER) Clear Button

6.Timer/Set Button

7.Sleep Button

8.(CD/TAPE) Stop Button

9.(CD) Play/Pause Button (TAPE) Play Button

10.(CD) Track Up/Cue Button (TAPE) Fast Forward Button (TUNER) Preset Up Button

11.(CD) Track Down/Review Button (TAPE) Rewind Button

(TUNER) Preset Down Button

12.Tuning Up/Down Buttons

13.Timer Button

14.Timer Up/Down Buttons

15.Function Selector Button

16.Band Selector Button

17.Extra Bass/Equalizer Mode Button

18.Volume Up/Down Buttons

XL-505H,505E,507E/CP-505,505E,507

				8
2	ON/			9
	STAND-BY			9
3	/RANDOM	PRESET		10
4	MEMORY/	TUNING		11
	SET	TUNING		11
	SET
5	CLEAR	TIMER/		12
5	CLEAR	SET TIMER		12
6	SLEEP	TIMER		13
6				13
7	FUNCTION	BAND	X-BASS/	14
	FUNCTION	BAND	EQUALIZER	17
			EQUALIZER

15		VOLUME		18
		VOLUME

16

– 5 –

– 6 –

SETTING THE CLOCK

In this example, the clock is set for the 24-hour (0:00) system.

ON/ STAND-BY

MEMORY/	PRESET
SET	( /	)
ON/
STAND-BY	PRESET
MEMORY/	(	/ )
MEMORY/
SET

0:00 AM 12:00

1	Press the ON/STAND-BY switch to enter the stand-by mode.
2	Press the MEMORY/SET button.
3	Press the PRESET (		or	) button to select the time display
	mode.
	"0:00"	→ The 24-hour display will appear.
		(0:00 - 23:59)
	"AM 12:00" → The 12-hour display will appear.
		(AM 12:00 - PM 11:59)
	Note that this can only be set when the unit is first installed
4	or it has been reset (see page 14).
	Press the MEMORY/SET button.
5	Press the PRESET (		or	) button to adjust the hour.
	Press the PRESET button once to advance the time by 1 hour.
	Hold it down to advance continuously.
	When the 12-hour display is selected, "AM" will change auto-
6	matically to "PM".
	Press the MEMORY/SET button.
7	Press the PRESET (		or	) button to adjust the minutes.
	Press the PRESET button once to advance the time by 1
	minute. Hold it down to change the time in 5 minute intervals.
	The hour setting will not advance even if minutes advance from
8	"59" to "00".
	Press the MEMORY/SET button.
	The clock starts operating from "0" seconds. (Seconds are not
	displayed.)

Note:

In the event of a power failure or when the AC power lead is disconnected, the clock display will go out.

When the AC power supply is restored, the clock display will flash on and off to indicate the time when the power failure occurred or when the AC power lead was disconnected.

If this happens, follow the procedure below to change the clock time.

To change the clock time:

1 Press the ON/STAND-BY switch to enter the stand-by mode.

2 Perform steps 4 - 8 above.

To change the time display mode:

1 Perform steps 1 - 3 in the section "RESETTING THE MICROCOMPUTER", on page 14.

2 Perform steps 1 - 8 above.

PREPARATION FOR USE

0.2 m - 6 m (8" - 20')

Notes concerning use:

Replace the batteries if control distance decreases or operation becomes erratic.

Periodically clean the transmitter LED on the remote control and the sensor on the main unit with a soft cloth.

Exposing the sensor on the main unit to strong light may interfere with operation. Change the lighting or the direction of the unit.

Keep the remote control away from moisture, excessive heat, shock, and vibrations.

RESETTING THE MICROCOMPUTER

2,3

Reset the microcomputer under the following conditions:

To erase all of the stored memory contents (clock and timer settings, tuner and CD presets).

If the display is not correct.

If the operation is not correct.

1 Press the ON/STAND-BY switch to enter the stand-by mode.

2 Unplug the AC power lead from the AC INPUT socket on this unit.

3 Whilst pressing down the MEMORY/SET button and the X- BASS/EQUALIZER button, plug the AC power lead into the AC INPUT socket on this unit.

Caution:

The operation explained above will erase all data stored in memory, such as clock and timer settings, tuner and CD presets.

MANUAL OPERATION

505,505E,507-505H,505E,507E/CP-XL

XL-505H,505E,507E/CP-505,505E,507

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 be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling.

4.Take suffcient care on static electricity of integrated circuits and other circuits when servicing.

XL-505H/505E/507E

STEP	REMOVAL		PROCEDURE		FIGURE

1	Top Cabinet	1.	Screw ...................	(A1) x4	7-1
		2. Socket ..................		(A2) x3
		3. Screw ...................		(A3) x1

2	Side Panel	1. Screw ...................		(B1) x7	7-1
	(Left/Right)

3	Back Board	1. Screw ...................		(C1) x2	7-1
4	Front Panel	1.	Screw ...................	(D1) x9	7-2
		2. Socket ..................		(D2) x2

5	Main PWB/	1. Screw ...................		(E1) x1	7-2
	Display PWB/	2.	Socket ..................	(E2) x3
	CD Servo PWB

6	Power Supply PWB	1. Screw ...................		(F1) x4	7-2

7	Tape Mechanism	1.	Screw ...................	(G1) x4	7-3

8	CD Mechanism	1.	Screw ...................	(H1) x3	7-4

CP-505/505E/507

STEP	REMOVAL	PROCEDURE		FIGURE

1	Speaker	1. Net .......................	(A1) x1	7-5
		2. Screw ..................	(A2) x4

CP-505/505E/507

Speaker Box

Net (A1x1)

(A2)x4
ø4x15mm	Speaker

XL-505H/505E/507E

(A3)x1	Top Cabinet
ø3x10mm	Top Cabinet
Top		(A1)x1
Cabinet		ø3x10mm		CD
		ø3x10mm

	Swicth		(A2)x2	Mechanism
	Swicth		(A2)x2
	PWB				(A2)x1
					(A2)x1
(A1)x1			(A1)x2
(A1)x1			ø3x10mm
ø3x10mm			ø3x10mm
ø3x10mm
			(B1)x3
Front			ø3x10mm
Front
Panel				(B1)x2
				ø3x10mm
			Rear Panel
	(B1)x2	Side Panel	(C1)x2
	(B1)x2		ø3x10mm
	ø3x10mm		ø3x10mm
	ø3x10mm
		Figure 7-1
		(D1)x6
		ø3x10mm	Main
			Main
Front Panel			PWB
Display PWB		(E1)x1
Display PWB		ø3x10mm			CD Servo
		ø3x10mm	(E2)x2		CD Servo
			(E2)x2		PWB
					PWB
(D2)x1			(D1)x1
			(D1)x1
			ø3x10mm
			CD Servo PWB
			Main PWB
(D2)x1			(F1)x3
			ø4x8mm
(E2)x1			(F1)x1
(D1)x2			(F1)x1
ø3x10mm			ø3x10mm

Power Supply

Power PWB

Transformer

Figure 7-2

Front Panel

Open	Tape Mechanism

(G1)x4

ø3x10mm

Figure 7-3

	(H1)x3
Screw	ø2.6x10mm
Screw
driver	CD Mechanism
	CD Mechanism

Top Cabinet

Direction of handle

Figure 7-5

Figure 7-4

– 7 –

XL-505H,505E,507E/CP-505,505E,507

REMOVING AND REINSTALLING THE MAIN PARTS

CD MECHANISM SECTION

Perform steps 1 and 8 of the disassembly method to remove the CD mechanism.

How to remove the pickup (See Fig. 8)

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.

Note:

After removing the optical pickup connector wrap the front end of connector in conductive aluminium foil so as to prevent damage of optical pickup by static electricity.

( A1 ) x2

Mechanism Cover

( A2 ) x2 ø2.6 x6mm

CD Mechanism

( A1 )

Shaft

( A3 ) x1

Gear

( A5 ) x1

StopWasher ( A4 ) x1

Pickup Unit

Figure 8

– 8 –

XL-505H,505E,507E/CP-505,505E,507

ADJUSTMENT

MECHANISM SECTION

• Driving Force Check

Torque Meter	Specified Value

Play: TW-2412	Over 80 g

• Torque Check

Torque Meter	Specified Value

Play: TW-2111	30 to 70 g. cm

Fast forward: TW-2231	50 to 140 g.cm

Rewind: TW-2231	50 to 140 g.cm

• Tape Speed

Test Tape	Adjusting	Specified	Instrument
	Point	Value	Connection

MTT-111	In Motor	3,000 ±	Headphones
			90 Hz

TAPE MECHANISM

M901

Motor

Volume in motor

Figure 9-1 ADJUSTMENT POINT

	T302
CNP301		T306	AM BAND
ANTENNA	AM		COVERAGE
ANTENNA

	TRACKING
				TP302
	L302
	FM BAND			FM MUTE
	COVERAGE			FM MUTE
	COVERAGE	TP301		LEVEL
	1			LEVEL

		T304
		T304		T351
		FM IF		T351
		FM IF	VR351
			VR351
	IC301	L303 FM RF		AM IF
	IC301	L303 FM RF

MAIN PWB

TUNER SECTION

fL: Low-range frequency fH: High-renge frequency

• FM RF

Signal generator: 1 kHz, 75 kHz dev., FM modulated

Test Stage	Frequency		Frequency	Setting/	Instrument
			Display	Adjusting	Connection
				Parts
Band	—		87.50 MHz	(fL): L303	*1
Coverage				3.4 ± 0.1 V

RF	98.00 MHz		98.00 MHz	L302	*2
	(10~30 dB)

*1. Input: Antenna,		Output: TP301
*2. Input: Antenna,		Output: Speaker Terminal

• Detection

Signal generator: 10.7 MHz, FM sweep generator

Test	Frequency	Frequency	Setting/	Instrument
Stage		Display	Adjusting	Connection
			Parts

IF	10.7 MHz	98.00 MHz	T304(Turn	Input: Pin 1 of
			the core of	IC301
			T304 fully	Output: TP302
			counter-
			clockwise.

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage		Frequency		Frequency	Setting/	Instrument
				Display	Adjusting	Connection
					Parts
IF		450 kHz		1,620 kHz	T351	*1

Band		—		522 kHz	(fL): T306	*2
Coverage					1.1 ± 0.1 V

Tracking		990 kHz		990 kHz	(fL): T302	*1

*1.	Input: Antenna,		Output: Speaker Terminal
*2.	Input: Input is not connected, Output: TP301

• Setting the Test Mode

Keeping the BAND button and MEMORY button pressed, turn on POWER. Then, the frequency is initially set in the memory as shown in Table. Call it with the , button to use it for adjustment and check of tuner circuit.

Preset No.		FM		Preset No.	AM

1	87.50		MHz	6	522 kHz
2	108.00		MHz	7	1,620 kHz
3	98.00		MHz	8	603 kHz
4	90.00		MHz	9	1,404 kHz
5	106.00		MHz	10	990 kHz
11~40
11~40

• FM Mute Level

Signal generator: 1 kHz, 40 kHz dev., FM modulated

Frequency	Display	Adjusting	Instrument
		Parts	Connection

98.00 MHz	98.00 MHz	VR351*1	Input: CNP301
	(25 dBμV)		Output: Speaker
			Terminal

Adjust so that an output signal appears.

Figure 9-2 ADJUSTMENT POINTS

– 9 –

XL-505H,505E,507E/CP-505,505E,507

CD SECTION

1. This CD unit need adjustment as follow.

CD Test Mode	Adjustment Part	Value/Adjusting Method	Instrument Connection

Step 1	VR803 (Focus Offset)	DC + 40 mV (FEL>RFO)	FEI (R826) and VRO
			(1-Pin of TP801)

Step 4	VR802 (Tracking Error Balance)	*1 (See Fig. 10-1)	TSO (3-Pin of TP801)
			and VRO (1 Pin of TP801)

*1: Adjust to obtaiin vertically symmetrical waveform (Fig. 10-1) with respect toreference DC level. The reference level is VRO (Approx DC 2.1V).

2.This CD unit have the following automatic adjustment function. Automatic adjustment item. 2-1: Focus Servo Gain (Fig. 10-2)

Focus Gain Adjustment is performed when disc is changed. 2-2: Tracking Servo Gain (Fig. 10-3)

Tracking Gain Adjustment is performed when disc is changed and disc is playbacked.

TSO

FET		1

VRO	1	SYMMETRICAL
		UP AND DOWN

FSO

Figure 10-1

Figure 10-2

TSO		1

TS2O		2

Figure 10-3

CD SERVO PWB

VR802

VR803

TP801

321

TRACKING

FOCUS

3 2 1

T N

ERROR

OFFSET

BALANCE

S C

Figure 10-4 ADJUSTMENT POINTS

– 10 –

XL-505H,505E,507E/CP-505,505E,507

TEST MODE

The Test Mode for this microcomputer has two variations, namely "regular Test Mode" for adjustment and measurement and "selfdiagnosis Test Mode" for self-judgment in final inspection of products.

1. Entering the Test Mode

To enter the each Test Mode, press the POWER key, holding down the following two keys in the regular standby mode (power off state). In this case only the main unit keys are valid. The Test Mode is not set even when the remote controller POWER key is turned on.

[Regular Test Mode]

1.CD Test Mode (TEST 1)

2.Tuner Test Mode (TEST 3)

3.Electronic volume Test Mode (TEST 4)

4.Timer Test Mode (TEST 5)

5.LCD Test Mode (TEST 6) [Self-diagnosis Test Mode]

1.Key input diagnosis TEST Mode (TESTA)

2.CD Test Mode (TEST 1)

1.Step 1 Mode

When the CD Test Mode is set, the following display lights, and the CD pickup slides to the innermost periphery.

After lighting for 1.5 sec

When the following operation key is pressed in this state, the following operation is performed.

"POWER" ................	The Test Mode is set to off, power is turned off, and the mode is changed to the regular standby mode.
"FF/FWD" ................	After the pickup returns once to the innermost periphery, the pickup slides to the external periphery while
.................................	this key is held down.
"REW/REV" .............	After the pickup returns once to the innermost periphery, the pickup slides to the internal periphery while
.................................	this key is held down. However, input is invalid if PU-IN is on.
"PLAY" .....................	Shift to Step 2
"STOP" ....................	Invalid

*In case of mode entry the pickup is moved to the internal periphery. At this time entry of any key other than POWER key is disabled until shift of pickup to the internal periphery is completed. If PU-IN SW ON cannot be detected while waiting for 10 seconds, the slide motor is stopped, the following error is displayed, and entry of any key other than POWER key is disabled.

– 11 –

XL-505H,505E,507E/CP-505,505E,507

2.Step 2 Mode

When the PLAY key is pressed in the mode above, the laser lighting is turned on. In this state the laser is only turned on, and other operations are not performed.

When the following operation key is pressed in this state, the following operation is performed.

"POWER" ................	The Test Mode is set to off, power is turned off, and the mode is changed to the regular standby mode.
"FF/FWD" ................	While this key is held down, the pickup slides to the external periphery.
"REW/REV" .............	While this key is held down, the pickup slides to the internal periphery. However, if PU-IN is on, entry is
.................................	invalid.
"PLAY" .....................	Shift to Step 3
"STOP" ....................	Return to Step 1

3.Step 3 Mode

While the laser is lighting, the focus servo is turned on, and focus search is performed. If focusing failure occurs, focus search is repeated until focusing is attained.

When the following operation keys are pressed in this state, the following operations are performed.

"POWER" ................	The Test Mode is set to off, power is turned off, and the mode is changed to the regular standby mode.
"FF/FWD" ................	While this key is held down, the pickup slides to the external periphery.
"REW/REV" .............	While this key is held down, the pickup slides to the internal periphery. However, if PU-IN is on, entry is
.................................	invalid.
"PLAY" .....................	If focusing has been attained, the process proceeds to Step 4. Unless focusing has been attained,
.................................	reception is inhibited.
"STOP" ....................	Return to Step 1

4.Step 4 Mode

The disc is rotated and CLV is locked while the tracking servo is off.

The time display indicates always "0:00".

When the following operation keys are pressed in this state, thefollowing operations are performed.

"POWER" ................	The Test Mode is set to off, power is turned off, and the mode is changed to the regular standby mode.
"FF/FWD" ................	While this key is held down, the pickup slides to the external periphery.
"REW/REV" .............	While this key is pressed, the pickup slides to the internal periphery. However, if PU-IN is on, entry is
.................................	invalid.
"PLAY" .....................	Shift to Step 5
"STOP" ....................	Return to Step 1

– 12 –

XL-505H,505E,507E/CP-505,505E,507

5.Step 5 Mode

The tracking servo is turned on, groove is traced, mute is set to off, and playback is started. Even when the outermost periphery of disc is reached in playback mode, it does not stop. The LCD display indicates playback lapse time as in case of regular CD playback.

When the following operation keys are pressed in this state, the following operations are performed.

"POWER" ................	The Test Mode is set to off, power is turned off, and the mode is changed to the regular standby mode.
"FF/FWD" ................	While this key is held down, the pickup slides to the external periphery.
"REW/REV" .............	While this key is held down, the pickup slides to the internal periphery. However, if PU-IN is on, entry is
.................................	invalid.
"PLAY" .....................	Invalid
"STOP" ....................	Return to Step 1

Other cautions

•While the CD lid OPEN is detected, entry into any step later than Step 2 is disabled. If CD lid OPEN is detected in any step higher than Step 2, return to Step 1 is done.

•TOC IL is not performed in the Test Mode.

•The key operation, excepting that specified above, is the same as that of regular operation (CD). Only the FUNCTION key is input-inhibited.

•Syncro REC with REC key input is also invalid in this mode.

3.Tuner Test Mode (TEST 3)

1. Outline of tuner (radio) Test Mode

The tuner Test Mode is intended to store adjustment/measurement frequency in the preset memory CH without frequency adjustment by the adjusting personnel when the tuner is adjusted in the production line.

2. Details of tuner Test Mode

When power is turned on with the POWER key while the MEMORY/SET key and BAND key are held down together in POWER OFF state, the frequency for adjustment/measurement of specific destination specified by the AREA terminal is preset-stored in the preset memory CH (the frequency to be preset-stored for specific destination is explained in the Item C). When the tuner Test Mode is started up, it is started with FM. FM is FM STEREO only.

When the REW key is pressed while the preset memory CH is 1CH, the highest CH is found as in case of regular mode. When the FF key is pressed while the preset memory CH is highest CH, 1CH is found.

The RADIO (TUNER) BAND key (or TUNER/BAND key on the remote controller) is valid.

As in case of regular mode, selection of band, FM MONO/STEREO mode is enabled by pressing the RADIO (TUNER) BAND (or TUNER/BAND ) key.

Exiting the tuner Test Mode, When the destruction data is stored in the memory in the tuner Test Mode, AC supply is interrupted in the Test Mode and the AC supply is recovered, all the memory is cleared with the destruction data in case of

start-up.

(Countermeasures so that the Test Mode memory does not remain when AC supply is restored after power supply failure occurred once in the Test Mode.) The memory is not cleared when AC supply is turned off after POWER OFF and FUNCTION selection. In case of exit from the tuner Test Mode through the backup mode upon occurrence of power failure the frequency data stored in the preset memory for adjustment/measurement is erased. (As a result the preset

memory CH becomes empty.)

The display indication is the same as that in case of regular operation.

The following display lights for one second when the tuner TEST mode is turned on

– 13 –

XL-505H,505E,507E/CP-505,505E,507

Test Mode operation specification

3. Preset frequencies for various destinations (random preset memory)

	BAND (CH)

1		FM	87.5MHz
2		FM	108.0MHz
3		FM	98.0MHz
4		FM	90.0MHz
5		FM	106.0MHz

6		AM	522 kHz
7		AM	1620 kHz
8		AM	990 kHz
9		AM	603 kHz
10		AM	1404 kHz

•The unit used in the table above is Hz. K represents 1,000 times, and M represents 1,000,000 times.

•The hatched data shown in the table are not stored in the memory.

•FM is stereo mode.

Note: Keys which are effective in Test Mode

• Main unit keys:	VOLUME UP/DOWN, BAND, TUNING UP, POWER, MEMORY, CLEAR,
	PRESET UP/DOWN

•Remote controller keys: VOL UP/DOWN, BAND, TUNING UP/DOWN, POWER, MEMORY, CLEAR, PRESET UP/DOWN

4.Electronic volume Test Mode (TEST 4)

After the Test Mode is set, the following display lights for one second.

When this mode has been set, -14dB (STEP17) is set, the preset equalizer is set to FLAT (EQ-3), the SRS mode is set to OFF, and the start-up function is set to Tape.

1.The display is the same as that indicated in case of regular operation excepting when Test Mode is set.

2.The volume control with the Volume UP/DOWN key is only the following 3 steps, differing from the volume control in the regular

operation mode.

Volume — ∞ (STEP 0) Volume — 14dB (STEP 17) Volume — 0 (STEP 24)

3.The preset equalizer and SRS are switched if key operation is performed.

5.Timer Test Mode (TEST 5)

When the Test Mode is set, the following display lights for one second.

The current time and timer time are set in the following procedure, and timer playback is performed.

1.The present time is set to 1:00, the timer is set to ON time 1:02, OFF time 1:12, Function is set to Tape, Volume is set to STEP8. One minute is counted in increments of second, and timer playback is performed. One step of Fade-in/out in this mode is performed for 0.5 sec.

The display is the same as that appears in the regular timer operation.

2.After completion of timer playback test "TEST-5" indication (which appears when the mode is set) appears again and Standby state is set. PLAY key entry is waited. If an entry is detected, the SLEEP timer is set to 2 minutes, and Function is set to Tape, so that playback is started at once. Volume is set to STEP8, and 10 seconds are counted down in decrements of second. One step of Fade-out is 0.5 sec.

The display is the same as that appears in the regular sleep playback mode.

3.After completion of SLEEP test, the Test Mode is turned off, and regular standby mode is set, so that the Test Mode ends.

– 14 –

XL-505H,505E,507E/CP-505,505E,507

6.LCD Test Mode (TEST 6)

When the LCD Test Mode is set, all the LCD segments light.

7.Key input diagnosis Test Mode (TEST A)

When the Test Mode is set, the following display appears.

In this Test Mode checking as to whether all the main unit keys can be detected is performed. Accordingly, when this mode is set, checking is performed so as to examine whether the POWER key was pressed last after all the following keys were pressed. If the result is OK, the following OK is displayed. If any one of keys was not pressed, an error is indicated. When the POWER key is pressed, exit from the mode is made irrespective of whether the termination is normal or abnormal, and the standby mode is set.

All the models using this microcomputer do not have the same keys. The entry of the following keys is detected depending on the combination of simultaneously pressed keys when this mode is set. Key pressing order is not fixed. Pressing of all keys must be detected.

1.In case of "PLAY" + "REC PAUSE"

Since the model does not have RDS and SRS, all the keys to be detected are the following 11 keys. PLAY, VOL <, VOL< , BAND, G-EQ, FUNCTION, MEMORY/SET, REC PAUSE, REW/REV, FF/FWD, STOP

OK/NG indication of test result must be as follows.

NG indication

OK indication

– 15 –

XL-505H,505E,507E/CP-505,505E,507

LCD

LCD701

COM3

SEG7

SEG26

COM0

VLC3

OSC2

IC701

OSC1

X701

VSS

IX0189AW

X702

MMOD

VREF

BUS3 62

KEY

KEY1

SW702-SW707

PU-IN

SW710-SW714

POWER

SW718

LID-SW

F.P

BIAS

SYS STOP

REMOCON

STEREO

B-CAN 54

LED704-LED712

CAM SW

RESET

P-MUTE

P-CONT

CD+B

CD RES

BUCK

R-MUTE

REC 53

CLE

CEE

MOT 52

SOL 51

FW701

SYS STOP

REMOCON

RESET

SWITCHING

Q701

Q702

Q704

M+12V

Q705

Q703

RX701

RESET

SWTCHING

-CON +5V

Q707

A 12V

SWITCHING

LED+B

P CONT

Q706

SWITCHING

(S+6.2VLINE)

FMSO

SL–

SL+

TR+

TR–

TS2O

Reg5V

VCC

GND

GAIN1

–+

IC804

+ –

+ – –+

– +

LEVEL

SHIFT

+ –

LEVEL

T.S.D

+ –

SHIFT

+ –

+ – –+

– +

STAND

GAIN4

-BY

GND

VCC

CD STB

DMEO

FO–

FO+

FSO

DMEO

DMEN

DMEP

SEL

CD+5V

COSC

SP+

SP–

VCC

GND

OSCI

FSO

FSN

DFCT 25

14 FEL2

FMSO 26

FOCUS

13 FEL1 OFFSET

VR803

FMSM 27

12 FHLD

SLEDM801

SP+

FMSP 28

11 FEI

–

SP–

SL+

THLD 29

10 FEO

M802

SL–

M –

SPINDLE

PU-IN

TS2O 30

FEN

SW801

GND

PU-IN

CNP803

CNS803

BI803

TS2N 31

FEP

TS2P 32

DFIN

CNS801

BI801

TS1N 33

6 SBAD

TR+

TR–

TS1P 34

5 RFRP

FO+

TR+

TSO 35

4 2VRO

FO–

FO+

TR–

FO–

TEL1 36

VRO

ACTUATOR

GND

TEL2 37

SWTCHING

2 RFI

1 RFO

C4A

Q801

+5V

TSN 38

1/2VCC

VR1A

CNS802

BI802

TPO

TPI

TNI

TNO

FNI

FPI

LDO

MDI

RFN

RFT

TRACKING

IC801

ERROR

BLANCE

GND

VR802

MON

C2A

C3A

VCC

LDO

1/2V

1/2VCC

+5V

Figure 16 BLOCK DIAGRAM (1/4)

– 16 –

XL-505H,505E,507E/CP-505,505E,507

FW702

SW701

CD EJECT

CNS603

M 12V

D GND

VCL

VCE

VDI

PWB

M GND

S+6.2V

MAIN

A GND

R-CH

L-CH

P MUTE

A 12V

P CONT

CD+B

R-MUTE

FM ST

REC

B-CAN

BIAS

CNS602

(S+6.2V)

-CON5V

Q861

REGULATOR

RUN PLS

Q906

MOT

SOL

SWTCHING

TAPE MOTOR

SWTCHING

PU IN

DRIVER

Q905

Q904

M-12V

SWTCHING

Q903

Q902

Q901

CD+5V

SOLENOID

SWTCHING

DRIVER

D-GND

P.F

CAM

DMPC

DMFC

FMFB

FMON

TKIC

TGUH1

TGUL

TEL1

TEL2

GNDD

VDDD

BI901

2VREF

CNS901

SEL

FOCUS

TIMING

SET

FCSI

TRACKING

GENERATOR

CNP901

803

FKIC

SERVO

RST 21

RESET

INTERFACE

CONTROL

CD BUS

BUCK 19

BUCK

SW902

CCE 18

CCE

47 FEI

A/D CONVERTOR

CAM

48 TESH

SERVO

BUS3 17

BUS3

49 TEOF

STATUS

BUS2 16

BUS2

SUB Q DATA

50 SBAD

RAM

BUS1 15

BUS1

BUS0

51 RFRP

ADRESS

BUS0 14

52 VREF

GNDD 13

G-GND

53 RFI

16K RAM

CODE

VDDD 12

SW901

FW901

54 GNDA

PH901

RECORD

CLV SERVO

PREVENTION

STATUS

TMAX DET

CLOCK

–

CD+5V

58 VDDA

EFM

CORRECT

GNDA 7

CD L-CH

TAPEM901

59 PDCNT

LO 6

SOL901

SOLENOID

PLL

STATUS

AUDIO OUT

DIGITAL OUT

DA CONV

RO 2

CD R-CH

GNDA 1

TESTX

GNDD

VDDX

GNDX

A-GND

IC802

X801

TSO

VRO

TP801

TEST POINT

Figure 17 BLOCK DIAGRAM (2/4)

– 17 –

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