Leak Stereo 30 Schematic

Page 1

FAULTB WHICH MAY OCCUR

SYMPTOM LIKELY CAUSE

Fuse repeatedly blows Loudspeaker leads are shorting out
Failure of To
Open circuit THZ or P7

Test point voltage cannot be adjusted to - 23 V Failure of T4 or T5

Excessive noise when volume is advanced Fault developed in T1 or possibly T2

Excessive noise with volume contiol at minimum Noisy T4

SPECIFICATION

INPUT SENSI'I'IVITIES: for full power output at l.000 c/s into a Is ohm load.
When using a 4 ohm load the sensitivities will be twice as high for the same power output.

I0 watts Into :1 I5 ohm load L

HI L0
PICKUP l (RIAA CHARACTERISTICIZ 3'5 mV -
Input impedance: 47k ohm _
or
PICKUP 2 (RIAA CHARACTERISTIC): 20 mV 60 mV
Input impedmce: 33k ohm IOOK ohm
TUNER: 30 mV 200 mV
Input impedance: 50k ohm 50k ohm
TAPE AMP. (TAPE MONITOR SWITCH 'OFF) I25 mV 250 mV
Input impedance: 50k ohm 100k ohm
TAPE AMP. (TAPE MONITOR SWITCH 0N) I25 mV 620 mV
Input impedance: 20k ohm 72k ohm
MICROPHONE: 3 mV I25 mv
Input impedance: 31k ohm I501: ohm
TAPE HEAD: 3 mV -
Input impedance: 47k ohm -

3W KIM
POWER'OUTPUT: new: -1 men 9:11 new: IK' :3! use-l l_-_l I run i
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into a 15 ohm load.
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IS watts into a 4 ohm load N" w- :, mpg, FLFI m,

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HUM AND NOISE:

(9'2:
6) El

L a:
66 dgubfilow run Output .. W % 3' anti] Q)
on ER and TAPE u ID 2" H,
AMP'. and 52 dB below CI 4:] (a El e E] ® EDIE G E (D
on other inputs. [1° I J E
B' 8 IE m E 0;\
i I m n
DAMPING FACTOR: D [3 E E
60 measured at LON c/s. (a
m_
. IKE
CROSS-TALK: E 69 G) I33
Between L' and 11 channels -- -
-50 dB up to 1.000 c/s. '00 cmssm LAvow

-30 dB at I0,000 c/s.

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use: View or nut nu