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Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
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The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
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Up to now you are the BEST! Prompt-efficient and so reasonable ! I have been after SONY service manual for quite some time !Thank you very much ! I can recomend your service to
all my collegagues ! V.Bergfield .
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This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
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A complete manual with all the needed details of calibrations and service instructions about the radio receiver.
A big deal.
Many thanks !
SECTION 4 SERVICE MODE
Service Mode (service program) The equipment is provided with a service program built in the microcomputer, like conventional models. Service program operation methods are described in the following.
REPEAT/ENTER Tracking gain-up mode while pressing HOLD OFF n ON Be sure to turn OFF the HOLD switch (if ON, pressing each key is deactivated) PLAY MODE Tracking servo and sled servo are turned ON
� Step 3 (Resetting service mode ) 1. Be sure to disconnect the external power supply and remove the solder bridge at the TEST terminals connected in setting. 2. The set thus becomes available for normal operation.
� MAIN BOARD � (Side A)
p
^
= (FR) The optical pick-up is moved inwardly + (FF) The optical pick-up is moved outwardly
^ (PLAY/PAUSE) FOCUS is turned ON to effect pull in mode p (STOP) All servos are turned OFF
Fig. 3 Layout of each key
� Step 1 (Service mode setting method) 1. Turn OFF the HOLD switch the external power supply disconnected (power is not applied to the set). 2. Solder across the T802 (TEST) terminals (pin %�, IC801 (TEST) is grounded). 3. Connect an external power supply. Thus, the set is switched to the service mode. � Step 2 (Operation in the service mode ) 1. Once the service mode is effected, the LCD displays 5 indications each of which is repeatedly displayed. However, the following operations can be activated even if LCD indication is effected. 2. By pressing the + or = key, the optical pick-up movable inwardly or outwardly. However, if this is activated, tracking servo and sled servo are turned OFF, so it can be turned ON by pressing the PLAY MODE key, if required. 3. By pressing the REPEAT/ENTER key, the tracking gain-up mode becomes active. 4. By pressing the ^ key, focus is turned ON from focus searching while entering CLV-S (pull-in mode). Without disc, focus searching is repeated continuously. 5. By pressing the PLAY MODE key, tracking servo, sled servo and CLV-A (servo in PLAY) are turned ON. 6. When 4. and 5. are performed, playing begins. No muting is ON in the service mode. 7. By pressing the p key, all servos (focus tracking and sled) are turned OFF. However, the disc motor revolves for a while by inertia.
T802 (TEST) Normal mode : Open Test mode : Short
Fig. 4 Location of test terminal
�7�
 $4.99 D-E441 SONY
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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