Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.repair
|
|||
|
|||
Sony Discman D-T2
Hello, all. Don't really have a repair issue but could use some
clarification from anyone familiar with the ca. 1989 subject device. (The D-T2 is the model D2 with the addition of an AM/FM tuner.) The unit uses 4 AA batt but can be powered externally. The DC input jack on the back of the player is labeled for 9 VDC and the user manual confirms this is the voltage that an external source should supply. The AC adapter that was supplied with the player is a Sony AC-9W which supplies 6 VDC vice 9 VDC. The Discman works OK with the 6V adapter but the service manual for the model D2 (found a copy online) cites the correct AC adapter as model AC-940, which is rated at 9 VDC output. Thanks for your time and comment. Sincerely, -- J. B. Wood e-mail: |
#2
Posted to sci.electronics.repair
|
|||
|
|||
Sony Discman D-T2
In article , J.B. Wood wrote: Hello, all. Don't really have a repair issue but could use some clarification from anyone familiar with the ca. 1989 subject device. (The D-T2 is the model D2 with the addition of an AM/FM tuner.) The unit uses 4 AA batt but can be powered externally. The DC input jack on the back of the player is labeled for 9 VDC and the user manual confirms this is the voltage that an external source should supply. The AC adapter that was supplied with the player is a Sony AC-9W which supplies 6 VDC vice 9 VDC. The Discman works OK with the 6V adapter but the service manual for the model D2 (found a copy online) cites the correct AC adapter as model AC-940, which is rated at 9 VDC output. If the AC-9W provides regulated 6V (probably does) you should be safe. The DC input probably uses a standard (vs. low dropout) voltage regulator that does not kick in until the input voltage is 2.5V above the target (i.e. 6V + 2.5= 7.5V). Hence the nominal 9V input. |
#3
Posted to sci.electronics.repair
|
|||
|
|||
Sony Discman D-T2
In article , Mike S. wrote: In article , J.B. Wood wrote: Hello, all. Don't really have a repair issue but could use some clarification from anyone familiar with the ca. 1989 subject device. (The D-T2 is the model D2 with the addition of an AM/FM tuner.) The unit uses 4 AA batt but can be powered externally. The DC input jack on the back of the player is labeled for 9 VDC and the user manual confirms this is the voltage that an external source should supply. The AC adapter that was supplied with the player is a Sony AC-9W which supplies 6 VDC vice 9 VDC. The Discman works OK with the 6V adapter but the service manual for the model D2 (found a copy online) cites the correct AC adapter as model AC-940, which is rated at 9 VDC output. If the AC-9W provides regulated 6V (probably does) you should be safe. The DC input probably uses a standard (vs. low dropout) voltage regulator that does not kick in until the input voltage is 2.5V above the target (i.e. 6V + 2.5= 7.5V). Hence the nominal 9V input. ^^^^ |||| Sorry, make that 8.5V. Coffee not yet in bloodstream as yet. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
sony discman D-350 specs? | Electronics Repair | |||
Sony Discman -- skiips on upper tracks | Electronics Repair | |||
Power Jack for Sony Discman | UK diy | |||
Vintage Sony discman d-7 dead | Electronics Repair | |||
Sony Discman | Electronics Repair |