Philips CEM2000/00 Service Manual page 34

Princeton Technology Corp
TUNNING TONE CURVE CHARACTERISTICS
The tone control response character is possible tuned to match user's wishes, please refer to following chart to realize
the characteristics between the different component values.
For the reasons to achieve low distortion and precision response gain, using high quality low tolerance X7R SMD
capacitor on tone circuit is recommended.
The loudness boost gain is adaptive with the master volume attenuation setting, more attenuation means more low
frequency boost, in the maximum volume the loudness boost will return to flat response.
+16
+14
+12
+10
+8
d
B
+6
g
+4
A
+2
+0
-2
-4
-6
10 20 50 100 200
PT7313E Bass Response VS CAP
-10
-15
-20
-25
d
-30
B
V
-35
-40
-45
-50
10 20 50 100 200
PT7313E Loudness Response VS CAP
(VOLUME=-40dB)
V1.0
ANGUS ELECTRONICS CO., LTD
Tel: (852) 2345 0540 Fax: (852) 2345 9948 Web Site: www.angus.com.hk
.
68nF
100nF
150nF
500 1k 2k 5k 20k
Hz
56nF
100nF
220nF
OPEN
500 1k 2k 5k 20k
Hz
10
+16
+14
2.7nF
+12
+10
1.5nF
+8
d
B
+6
g
+4
A
+2
+0
-2
-4
-6
10 20 50 100 200 500 1k 2k
PT7313E Treble Response VS CAP
+0
-10
-20
d
-30
B
g
-40
A
-50
-60
-70
-80
20 50 100 200
PT7313E Loudness Response VS Master Volume
PT7313E
1nF
5k 10k 20k 50k
Hz
500 1k 2k 5k 10k 20k
Hz
February 2010