DOWNLOAD Panasonic KX-TDA6382X / KX-TDA6382SX Service Manual ↓ Size: 8.07 MB | Pages: 85 in PDF or view online for FREE

37

NG

all ports

CO9-12 ports

CO13-16 ports

OK

OK

Caller ID is not detected.

END

Dose this occur in a specific port

or all ports or CO9-12 or CO13-16.

a specific port

Another Case.

Check soldering of terminal of  IC508

and 609 and the peripheral parts. 

Resolder IC508 and 609.

Check the test 

land between [4M] and [DG].

4.096MHz?

NG

Check Connector Cn8-58 Pin.

NG

Replace the 

defective parts.

Check the test 

land between [+2.5] and 

[DG] 2.5V?

OK

Replace the IC508 and 609.

Replace the IC508 and 609.

NG

Check Connector Cn8-4 Pin.

NG

Replace the 

defective parts.

OK

OK

Check the voltage 

of Pin61(PLL_VCNT) of

IC508, IC609:0.8-0.9V.

NG

Check
CO#8-12:R555, C544, C545, C546
CO#13-16:R629, C646, C647, C648

NG

Replace the 

defective parts.

OK

Check the voltage of test land

[VREF1] of IC508

of [VREF2] of IC609

:1.5 - 1.8V.

OK

NG

Replace the defective parts.

OK

Replace the IC508 and 609.

38

Even if you do not have the special tools (for example, a spot heater) to remove the Flat IC, with some solder (large amount), a sol-
dering iron and a cutter knife, you can easily remove the ICs that have more than 100 pins.

• PbF (: Pb free) Solder
• Soldering Iron

Tip Temperature of 700

F ± 20F (370C ± 10C)

Note: We recommend a 30 to 40 Watt soldering iron. An
expert may be able to use a 60 to 80 Watt iron where some-
one with less experience could overheat and damage the
PCB foil.

• Flux

Recommended Flux: Specific Gravity 

 0.82.

Type 

 RMA (lower residue, non-cleaning type)

Note: See About Lead Free Solder (PbF: Pb free) (P.3).

1. Put plenty of solder on the IC pins so that the pins can be

completely covered.
Note:

If the IC pins are not soldered enough, you may give
pressure to the P.C. board when cutting the pins with
a cutter.

2. Make a few cuts into the joint (between the IC and its

pins) first and then cut off the pins thoroughly.

3. While the solder melts, remove it together with the IC

pins.

When you attach a new IC to the board, remove all solder
left on the land with some tools like a soldering wire. If some
solder is left at the joint on the board, the new IC will not be
attached properly.

1. Tack the flat pack IC to the PCB by temporarily soldering

two diagonally opposite pins in the correct positions on
the PCB.

Be certain each pin is located over the correct pad on the PCB.

2. Apply flux to all of the pins on the IC.

3. Being careful to not unsolder the tack points, slide the sol-

dering iron along the tips of the pins while feeding enough
solder to the tip so that it flows under the pins as they are
heated.

1. Add a small amount of solder to the bridged pins.
2. With a hot iron, use a sweeping motion along the flat part

of the pin to draw the solder from between the adjacent
pads.

39

1

4

5

3

C1CB00001432

C1CB00002620

C0EBY0000679

C0JBAB000504

C0ABBB000179

C0JBAB000535

C1BB00001153
C2CBYE000011

PNWITDA6382X

MA8047

MA143

DA3J103E0L

B3AGB0000050

151

208

1

52

53

104

105

150

49

64

1

16

17

32

33

48

1

4

8

5

B

E

C

PQVTDTA114EU

B1ADCF000020

PQVTDTC114YU

MA8051
MA8075

DZ2J062M0L

Anode

Cathode

Anode

B0EDER000009

DMG504010R

XP0111100L

PQVDRLZ2R0B

PQVDPTZT2524

B0JCQD000005

Cathode

Anode

+

B1CHRE000013

Cathode

Anode

C0DBAFZ00054

B1CHRD000011

C0DBGYY00861

DSC7003S0L

B1CHRC000039

Cathode

Anode

100

1

25

26

50

51

75

76

1

3

2

4

1

24

25

48

1

16

17

32

1

2

3

Cathode

Anode

40

C1CB00001432

C0JBAB000504

C0ABBB000179

C1BB00001153

MA143

49

64

1

16

17

32

33

48

1

4

8

5

Anode

Cathode

Anode

B0EDKT000007

PQVDRLZ2R0B

PQVDPTZT2524

+

Cathode

Anode

DSC7003S0L

100

1

25

26

50

51

75

76