Marantz 250 - Page 17

Improper clipping.
Relay Latching
No meter indication of output.
AUDIO
OSCILLATOR
AMP
IN
OUTPUT
TERMINALS
MODEL 250
Figure 6. Test Equipment Set-Up
CONNECT AS REQUIRED
a. Check for proper adjustment of R541, R54
b. Check for transistors Q802 through 0805.
a. Сһеск 0301 through 0303.
b. Check output for proper clipping (posit
and negative levels must not vary more th
1 volt at 2 KHz).
с. Check for high level DC offset at junction |
R302 and R305. E
a. Check Q401 through Q404. Check `
defective M1, M2 (meters), open C401
C404, open CR405 through CR408 a
CR415 through CR418.
DISTORTION
ANALYZER
CONNECT AS
REQUIRED
O- OUTPUT
LOAD