Sony SRF-QT1 Service Manual ▷ View online
SRF-QT1
E Model
SERVICE MANUAL
FM STEREO RADIO
MICROFILM
SPECIFICATIONS
Frequency range:
FM 87.5 – 108 MHz
Output:
i
(headphones) jack
(ø 3.5 mm stereo minijack)
Power output:
1.5 mW + 1.5 mW
(at 10 % harmonic distortion)
(at 10 % harmonic distortion)
Power requirements:
1.5 V DC, one R03 (size AAA) battery
Dimensions:
Approx. 49.8
×
64.8
×
26.0 mm (w/h/d)
(2
×
2
5
/
8
×
1
1
/
16
inches) not incl.
projecting parts and controls
Mass:
Approx. 50 g (1.8 oz) incl. a battery and
headphones
headphones
Accessories supplied:
Stereo headphones (1)
Carrying pouch (1)
Carrying pouch (1)
Design and specifications are subject to change without notice
Ver 1.0 1999. 12
This section is extracted from
instruction manual.
instruction manual.
SECTION 1
GENERAL
1. GENERAL
.......................................................................... 2
2. DISASSEMBLY
2-1. Lid, Battery Case ................................................................... 3
2-2. Cabinet (Front), Knob (Tune) ............................................... 3
2-3. Main Board ........................................................................... 4
2-2. Cabinet (Front), Knob (Tune) ............................................... 3
2-3. Main Board ........................................................................... 4
3. ELECTRICAL ADJUSTMENT
.................................... 5
4. DIAGRAMS
4-1. Printed Wiring Board — Main Board — .............................. 7
4-2. Schematic Diagram — Main Board — ................................. 9
4-2. Schematic Diagram — Main Board — ................................. 9
5. EXPLODED VIEWS
...................................................... 11
6. ELECTRICAL PARTS LIST
....................................... 12
— 2 —
— 3 —
SECTION 2
DISASSEMBLY
Note :
Follow the disassembly procedure in the numerical order given.
• The equipment can be removed using the following procedure.
2-2. CABINET (FRONT), KNOB (TUNE)
Lid ,Battery Case
Cabinet (Front), Knob (Tune)
Main Board
Set
2
Two screws (B1.7
×
8)
1
Slide Lid, Battery Case in
the direction of the arrow.
6
Screw (P1.7
×
2.5)
claw
two claws
7
Knob (Tune)
claw
5
Knob (Power)
3
Release from the claw.
4
Remove the Cabinet (Front)
in the direction of the arrow.
2
Release them
from the two claws.
1
Release from the claw.
10
8
88
96
2-1. LID, BATTERY CASE
— 4 —
2-3. MAIN BOARD
2
Remove the MAIN board
in the direction of the arrow.
1
Remove the leads at the two
points of battery terminals
(+)/(-) by unsoldering.
(+)/(-) by unsoldering.
Lead wire (white)
Lead wire (red)