Sony MDR NC60 - Headphones - Binaural, Руководство по обслуживанию

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10
MDR-NC60
2
Canceling Gain Adjustment
Preparation and setting:
– L-CH –
1. Remove the resistors from TP903, TP904, TP905.
2. Connect the wires of HP board (audio in jack)) to the TP903 (green), TP904 (red), TP905 (natural).
3. Remove the resistor from TP915, TP916.
4. Connect the wires of SP1 to the TP915 (red), TP916 (natural).
5. Connect the wire of MIC2 to the TP913 (red).
6. Connect a lead wire to the TP3.
7. Connect a resistor and capacitor to the TP913.
– R-CH –
8. Remove the resistor from TP932, TP933.
9. Connect the wires of SP101 to the TP932 (red), TP933 (natural).
10. Connect the wire of MIC102 to the TP930 (red).
11. Connect a lead wire to the TP103.
12. Connect a resistor and capacitor to the TP930.
Figure 4
TP3
TP903
TP904
TP905
TP915
TP916
TP913
TP2
RV2
Do not touch in
this adjustment.
Do not touch in
this adjustment.
RV1
– ML BOARD (SIDE A) –
TP932
TP930
TP933
TP102 TP103
RV101
RV102
– MR BOARD (SIDE A) –
(GND)
(GND)
SP1
MIC2
Red
Red
Natural
Natural
Red
Green
Natural
from HP board
(audio in jack)
SP101
MIC102
Red
Red
Natural
Natural
10 k
Ω
47
µ
F
+
audio analyzer
impedance: 600
Ω
output: 2 kHz, –26 dBv
10 k
Ω
47
µ
F
+
connect lead
wire to TP3
connect lead
wire to TP103
adjustment part
adjustment part
OUT
IN
audio analyzer
impedance: 600
Ω
output: 2 kHz, –26 dBv
OUT
IN