Tuner Adjustments; チューナー部調整 - Yamaha DVR-S60 Service Manual

DVR-S60/NX-SW60
TUNER ADJUSTMENTS / チューナー部調整
• Use a plastic screw driver for adjustments.
• MODE : STEREO
• Speaker impedance : 8 ohm
U, C, R, T, K, A. J models
FM SG IN L2031
L2033
75 OHM
CN201
AM LOOP
ANT
L2034-a
TP11
(VT)
G, B models
FM SG IN
75 OHM
CN201
AM LOOP
ANT
L2034-a TP11
(VT)
44
SG RF Level : 75Ω open Voltage dBµV
Antenna : 75Ω unbalanced Direct, Modulation
: MONO ± 22.5kHz / ± STEREO 22.5kHz (MAIN)
Dev.
± 6.75kHz(PILOT)
Output Level : about 100mV at TP25,TP26,TP27
0V ALIGNMENT
TP32 TP31
(IC202 22PIN) (IC202 3PIN)
T2001
R2046
J2024
J2025
J2061
J2063
TP12 TP27 TP26 TP25
(GND) (GND) (RCH) (LCH)
0V ALIGNMENT
TP32 TP31
(IC202 22PIN) (IC202 3PIN)
T2001
R2046
J2046
J2047
J2092
J2093
TP12 TP27 TP26 TP25
(GND) (GND) (RCH) (LCH)
1 . F M
S t e p Adjusting
Circuit
I n p u t
FM ANT.
1 IF Alignment
: 1 kHz
SG=66dB µ V
---
2 Voltage
range
---
3 Tracking Connect FM SG to FM Antenna
(SG=8dBµ V)
2 . A M
S t e p Adjusting
Circuit
I n p u t
---
1 Voltage
range
---
2 Tracking Connect AM SG to
Test loop Ant.(SG=80dB µ V)
Connection
S G S e t
Frequency Position
O u t p u t
TP31 (IC202 3pin)
U, C, R, T, K, A, G, B : 98.1MHz ---
TP32 (IC202 22pin)
J : 83.0MHZ
U, C : 87.9 MHz Low
Connect Digital DC voltmeter
R, T, K, A : 87.5MHZ
to TP11(H), TP12(E). J : 76.0MHZ
U, C : 107.9 MHz High
R, T, K, A : 108.0MHZ
J : 90.0MHZ
Low
U, C, R, T, K, A : 90.1MHz
Connect to VTVM
J : 78.3MHZ
TP25(L) or TP26(R), TP27(E)
High
U, C, R, T, K, A : 106.1MHz
J : 88.2MHZ
Connection
S G S e t
Frequency Position
O u t p u t
U, C, R : 520kHz Low
Connect Digital DC voltmeter
T. K, A, G, B, J : 522kHz
toTP11(H), TP12(E).
U, C, R, T, K, A : 1710kHz
High
G, B : 1611kHz
J : 1629kHz
Low
U, C, R : 600kHz
Connect to VTVM
T. K, A, G, B, J : 603kHz
TP25(L) or TP26(R), TP27(E).
U, C, R : 1400kHz
High
T. K, A, G, B, J : 1404kHz
Adjustment Remark
T2001 0.0 +/- 0.05V
L2033 1.1+/- 0.1V
---
about 6.2V
L2031
Max.
---
Adjustment Remark
--- more than 0.8V
--- less than 8.0V
L2034-a
Max.
---