|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Purchased the manual that I was looking for at a great price and could download it easily.. Great service experience and for future purchases I plan to use the site.
Thank you very much
;
Exactly what was needed to assess the product - excellent value and great service
;
A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
;
Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
;
Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
4. Cannot make a phone call (pulse).
NG Can the base and handset be connected? OK Check whether T/P SW is PULSE. OK While in TALK MODE, press dial key of the handset. Check whether the square waveform from Pin 55 of IC4 is fed. OK Check Q2, RL1, R20,R43, R95, D19 and their peripheral circuits. NG Check IC4 and R95. NG Set T/P SW to PULSE. See 3. The base and handset cannot be connected.
5. Cannot make a phone call (tone).
NG Can the base and handset be connected? OK Check whether T/P SW is TONE. OK While in TALK MODE, press dial key of the handset. Check whether the tone wave output from pin 24 and Pin 25 of IC3 is fed. OK Can tone signal be heard from the handset speaker? OK Check the base TEL-line circuit and RELAY control circuit.
� 14 �
See 3. The base and handset cannot be connected.
NG Set T/P SW to TONE.
NG
Check IC3 and its peripheral circuit.
NG
Check R18, R37,R33, R133 and their peripheral circuits.
|
|
|
> |
|
