Philips az 7901 service manual
This is the 20 pages manual for philips az 7901 service manual.
Read or download the pdf for free. If you want to contribute, please upload pdfs to audioservicemanuals.wetransfer.com.
Extracted text from philips az 7901 service manual (Ocr-read)
Page 1
1-1 CS 46 639 TECHNICAL SPECIFICATION General Dimensions (WxHxD) : 128x28x139mm Weight without batteries : 220g Power supply modes DC-in socket : 2.5-6.0V Primary batteries (2xLR6) : 1.6-3.6V Rechargable batteries (AY3362) : 1.6-3.6V Battery lifetime Primary batteries (2xLR6) :³11h (15h typ.) Rechargable batteries (AY3362) :³6h (8h typ.) Battery empty detection Battery empty level : 1.8V nom. +100/-50mV Current consumption at DC-in supply = 4.5V PLAY mode :²150mA (100mA typ.) JUMP mode :²300mA (220mA typ.) Stand-by mode :²200µA (100µA typ.) Current consumption at Battery supply = 2.25V PLAY mode :²190mA (135mA typ.) JUMP mode :²400mA (300mA typ.) Stand-by mode :²200µA (100µA typ.) Shock resistance +X/-X direction :³4.0g +Y/-Y direction :³4.0g +Z/-Z direction :³3.0g Headphone out (measured with 16½load, DBB off) Output power (THD=10%) /17 version only : 2x6mW (+1/-3dB) all other versions : 2x3mW (+1/-3dB) Frequency response (1mW) : 100Hz-20kHz within 6dB S/N ratio (unwght) :³80dB (81dB typ.) S/N ratio (A-wght) :³82dB (84dB typ.) THD+N (1kHz, 1mW) :²1% (0.2% typ.) Channel crosstalk (1kHz, no load) :²-24dB (-44dB typ.) Channel unbalance (-40dB) :²5dB Volume attenuation (1kHz) :³60dB Laser Output power : <5mW (3mW typ.) Wavelength : 780nm Measurement setup Use Audio Signal disc SBC429 4822 397 30184 Low pass filter DUT S/N and distortion meter L R i.e. Sennheiser UPM550 with FF-filter Level meter i.e. Sound Technology ST1700B i.e. 4822 395 3020422kHz 13th order FEATURE OVERVIEW E L B A T R O P - D C F O S E R U T A E F Ó 1 B P Ð 1 S I R O D Ò Y L I M A F T C U D O R P0 0 9 7 Z A ) s n o i s r e v l l a ( 1 0 9 7 Z A) s n o i s r e v l l a ( Y T I L I B I T A P M O C E L B A T I R W E R - D C ll N O I T C N U F E M U S E R / D L O H l/ll/l S E G A T S B B D11 K C A B D E E F C I T S U O C A ll Y R O M E M M A R G O R P5 151 H M i N / d C i N N O I T C N U F E G R A H C E RÐ / ÐÐ/ Ð D E R A P E R P L O R T N O C E T O M E R D R O CÐÐ T U P T U O L A T I G I D / E N I LÐ / ÐÐ/ Ð
Page 2
19......................stops CD play, clears a program or switches the player off 2DBB .................DIGITAL DYNAMIC BASS BOOST switches the bass enhancement on and off 3¤.....................skips and searches CD tracks forwards 42;....................switches the player on, starts or pauses CD play 5........................display 6°.....................skips and searches CD tracks backwards 7PROGRAM ......programs tracks and reviews the program 8MODE..............selects the different playing possibilities: SHUFFLE , SHUFFLE REPEAT ALL , REPEAT , REPEAT ALL and SCAN9RESUME .........stores the last position of a CD track played HOLD ..............locks all buttons OFF .................switches RESUME and HOLD off 0LINE OUT/p....3.5mm headphone socket, socket to connect the player to another analogue audio input of an additional appliance !VOL E..........adjusts the volume @OPEN 2...........opens the CD lid #4.5V DC ...........socket for external power supply $........................typeplate 1-2 CS 46 640 CONNECTIONS AND CONTROLS 4,5VDC 0 O P E N OFF-RESUM E-HOLD L I NE OUT/ VOL. PROGRAM MODE DIGITAL DBB 1 2 3 4 5 6 7 8 9 0 ! @# $ TROUBLESHOOTING (excerpt from the Instruction For Use) Problem Possible cause Solution No power, Batteries playback does Batteries inserted incorrectly Insert the batteries not startcorrectly Batteries are empty Change the batteries Contact pins are dirty Clean them with a cloth Mains adapter Loose connection Connect the adapter securely In-car use Cigarette lighter is not Switch on ignition or insert powered when ignition is off batteries nF d1SCCD-RW (CD-R) is not Use FINALIZE on the indicationrecorded properly CD Recorder to complete the recording no d1SCThe CD is badly scratched Replace or clean the CD indicationor dirty CD is not or incorrectly inserted Insert a CD, label upwards The laser lens is steamed up Wait until the lens has cleared HoLdHOLD is activated Deactivate HOLD indication Electrostatic discharge Disconnect the set from and/or power supply or take out no reaction the batteries for a few to controls seconds Problem Possible cause Solution CD skips tracksThe CD is damaged or dirty Replace or clean the CD RESUME , SHUFFLE or PROGRAM Switch RESUME , SHUFFLE is active or PROGRAM off No sound orPAUSE is activated Press 2; bad sound Loose, wrong or dirty Check and clean quality connections connections Volume is not adjusted Adjust the volume Malfunctions due to vicinity Keep the player away from of active mobile phones active mobile phones Strong magnetic fields near Change the players the player position or connections In-car use Cassette adapter is inserted Insert the cassette adapter incorrectly correctly Temperature inside the car Let the player adjust to is too high/low the temperature Cigarette lighter socket Clean the cigarette is dirty lighter socket Wrong playback direction of Change the autoreverse the car cassette players direction autoreverse feature