Caution For Replacing The Led; Precautions For Reassembly - Kenwood TS-590S Service Manual

TS-590S
2. Bend the leg of the diode as shown in the fi gure.
3. Solder the diode between Q61 (Collector) and the solder
pad (Base) of the Control unit (A/3), as shown in the fi g-
ure.
Note:
1) Confi rm the direction of the cathode band when install-
ing the diode.
2) Install the diode so that it is positioned on the dotted
line.
3) Install the diode so that its height from the surface of the
PCB is 4mm (0.16 inches) or less (Height of rubber sheet
(G11-4536-04): 4mm (0.16 inches)).
Install the diode so that it is positioned
on the dotted line.
Control unit (A/3)
Transistor (Q61)
Diode (D304)
4mm
(0.16 inches)
Rubber sheet
(G11-4536-04)

Precautions for Reassembly

Perform the following steps when assembling the bottom
side of the transceiver.
1. Separate the two coaxial cables (E37-1495-05, E37-1496-
05) as shown in the fi gure.
2. Push the two fl at cables (E37-1491-05, E37-1492-05) into
the gap of the chassis so they do not come into contact
with the cabinet.
4
DISASSEMBLY FOR REPAIR
Cathode band
below
4mm
(0.16 inches)
Diode
Coaxial cable Coaxial cable
(E37-1495-05) (E37-1496-05)
Separate the two
coaxial cables

Caution for Replacing the LED

(B30-2322-05, B30-2323-05)
When replacing the "B30-2322-05" or "B30-2323-05"
LED used by the Display unit (A/6), order and replace the
LED for service into which the rank is divided according to
brightness, according to the following procedures, so that
the brightness of the LED backlight remains uniform after
replacing the LED.
1. Confi rm whether the "A" or "Z" stamp is pushed on the
foil side of Display unit (A/6).
Confirm whether stamp Confirm whether stamp
"A" is pushed. "Z" is pushed.
2. Order and replace the LED for service as shown in the
following table according to whether stamp "A" or "Z"
exists or not.
Service LED part number for
B30-2322-05 (Amber)
Stamp "A" Stamp "A"
exists does not exist
W05-1637-00
W05-1636-00
(Low and medium
(High brightness)
brightness)
Flat cable Flat cable
(E37-1492-05) (E37-1491-05)
Push the flat cables into
the gap of the chassis
Display unit (A/6)
Foil side
Service LED part number for
B30-2323-05 (Green)
Stamp "Z" Stamp "Z" does
exists not exist
W05-1639-00
W05-1638-00
(Low and medium
(High brightness)
brightness)