Sony MDR-NC60 Service Manual page 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.
Do not touch in
this adjustment.
adjustment part
from HP board
(audio in jack)
Do not touch in
this adjustment.
adjustment part
10
– ML BOARD (SIDE A) –
RV2
RV1
TP2
Green
TP903
Red
TP904
Natural
TP905
– MR BOARD (SIDE A) –
Red
TP915
SP1
Natural
TP916
Natural
MIC2
Red
TP913
10 k Ω 47 µ F
connect lead
wire to TP3
Red
SP101
Natural
Red
MIC102
Natural
10 k Ω 47 µ F
connect lead
wire to TP103
Figure 4
audio analyzer
OUT
IN
impedance: 600 Ω
output: 2 kHz, –26 dBv
(GND)
audio analyzer
OUT
IN
impedance: 600 Ω
output: 2 kHz, –26 dBv
(GND)