|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Fast access, 100% correct and complete service manual
;
just what i was seeking .had a password issue but the review allowed me to circumvent and download was great
;
Great manual, great price. Has a few of the basic operating instructions that most service manuals leave out. Complete instructions for disassembling board by board, safety precautions, schematics, complete parts list.
;
I am very pleased with the service manual for my RT-909. This was an easy purchase and great procuct, and much cheaper than other venues i had looked at. This web site is now listed in my favorites list. KEEP UP THE GOOD WORK. THANKS. J. BROWN
;
A very well written and easy to understand manual.
21KF-80C
NO PICTURE, NO SOUND
Does the noise level increase at max. Contrast, Brightness and Sound
Noise increase but . No signal is received.
No snow noise.
Check the tuner supply voltage LB must be approx 5V. BT must be approx. 32V, and CH preset data check.
Does noise or signal appear at pin40 of IC801?
Does noise or signal appear at pin38 of IC801?
Check IC801and its related circuit.
Check the Tuner AGC at TP201.
Does noise or signal appear at pin23 and 24 of IC801?
Check Q401, Q402 and its related circuit.
Check pin38 of IC801.
Check pin27 of IC801, Tuner and related circuit.
Check pin1,2 of SF201, Tuner and related circuit.
Check pin37 of IC801and related circuit.
NO SOUND
Does signal appear at pin6 of IC302 / 303?
Check IC3001and its related circuit.
Does signal appear at pin2 of IC302 / 303?
Check Speaker.
Check IC302 / 303 and peripheral circuit.
38
|
|
|
> |
|
