Read Panasonic RQ-SX79GK / RQ-SX79GD Service Manual online
12 Type Illustration of ICs, Transistors and Diodes
No.1
E
C
B
No.1
MA2SD1000L
A
Ca
Anode
Cathode
LB11675V
24PIN
AN7501FHQ-EB
48PIN
32PIN
32PIN
C2ABDB000073
B1ADMB000003
UNR511000L
2SD1819ASL
B1ADJB000001
B1DFCC000008
UNR521300L
UNR511000L
2SD1819ASL
B1ADJB000001
B1DFCC000008
UNR521300L
1
2
3
C0EBD0000066
C0DBAFD00011
C0DBAFD00011
3 PIN
3 PIN
C0EBC0000034
3 PIN
A
Ca
Anode
Cathode
B3AEB0000072
1
2
4
3
CNB1002002AU
UNR511M00L
UNR521500L
UNR521500L
MA2S72800L
13 Measurements and Adjustments
13.1. Adjustment Instructions
READ CAREFULLY BEFORE ATTEMPTING ADJUSTMENT
1. Set volume control to maximum.
2. Release the hold state.
3. Set power source voltage to 1.25V ~ 1.35V DC.
2. Release the hold state.
3. Set power source voltage to 1.25V ~ 1.35V DC.
· Control Positions and Equipment Used
1.Frequency counter
· Tape Section
ITEM
TEST TAPE
MEASUREMENT POINT
ADJUSTMENT
POINT
PROCEDURE
Tape speed
adjustment
QZZCWAT (3
kHz, -10 dB)
kHz, -10 dB)
Connect the frequency
counter to headphones jack
(16
Ω) (Refer to Fig.1)
VR2 (Refer to
Fig.2)
Playback the centeral part of the tape and adjust VR1 so
that the tape speed is as follow. Forward:3015 ± 15 Hz,
Reverse:2975 ~ 3055 Hz, Make sure that the frequency
range in with in ± 60 Hz for between “Forward” and
“Reverse” mode.
that the tape speed is as follow. Forward:3015 ± 15 Hz,
Reverse:2975 ~ 3055 Hz, Make sure that the frequency
range in with in ± 60 Hz for between “Forward” and
“Reverse” mode.
13.2. Adjustment Points
Note:
1.The Playback head is supplied on the head arm assembly.(See the Mechanism parts Location)
2.The assembly requires no adjustment.
1.The Playback head is supplied on the head arm assembly.(See the Mechanism parts Location)
2.The assembly requires no adjustment.
18
RQ-SX79GK / RQ-SX79GD
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