DOWNLOAD Panasonic KX-TG7851UAB / KX-TG7851UAH / KX-TG7861UAB / KX-TGA785RUB / KX-TGA785RUH Service Manual ↓ Size: 6.65 MB | Pages: 88 in PDF or view online for FREE

Model
KX-TG7851UAB KX-TG7851UAH KX-TG7861UAB KX-TGA785RUB KX-TGA785RUH
Pages
88
Size
6.65 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS PHONE
File
kx-tg7851uab-kx-tg7851uah-kx-tg7861uab-kx-tga785ru.pdf
Date

Panasonic KX-TG7851UAB / KX-TG7851UAH / KX-TG7861UAB / KX-TGA785RUB / KX-TGA785RUH Service Manual ▷ View online

17
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
SIGNAL ROUTE
ROUTE
IN
OUT
SIGNAL
Memo/OGM
Recording
(from Handset)
ICM Recording
(from Tel Line)
(BASE UNIT)
from HANDSET ANT1 - C851 –– DA802  
IC501 (RXn)  –– 
ANT2 - C853 –                        IC501 (RXp) –
IC501 (LSRp) - IC601 (5)
(BASE UNIT)
A –––––––– D101 - Q141 - Q161 - R164 - C173 - R178 - IC501 (MICn) - IC501 (SPI_DO) - IC601 (5)
B - P101–
Message Play
(to Handset)
(BASE UNIT)
IC601 (2) - IC501 (SPI_DI)       IC501 (TXp)        C803 -
(BASE UNIT)
IC601 (2) - IC501 (SPI_DI) - IC501 (LSRp) - C184 - Q161 - Q141 - D101        A
Message Play
(to Tel Line)
Message Play
(to Base Unit)
(BASE UNIT)
IC601 (2) - IC501 (SPI_DI)        IC501 (SPp)
IC501 (SPn)
IC501 (TXn)
DA802
 C851 - ANT1
 C853 - ANT2
 to HANDSET
(HANDSET)
from BASE UNIT   ANT -  C801–– IC1 (1)
– IC2 (2)
IC1 (35) - SP (–)
IC1 (37) - SP (+) 
P101 - B
for KX-TG7861 only
(HANDSET)
MIC (+) - C13 - IC1 (17)        IC1(86)
MIC (–) - C11 - IC1 (18)          IC1(87)          C859  - C801 - ANT to BASE
18
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
5 Location of Controls and Components
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
6 Installation Instructions
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
7 Operating Instructions
Refer to the Operating Instructions.
Note:
You can download and refer to the Operating Instructions (Instruction book) on TSN Server.
7.1.
For Service Hint
Items
Contents
Battery
You could use other rechargeable batteries sold in a market, but the unit is not guaranteed to work 
properly.
The battery strength may not be indicated correctly if the battery is disconnected and connected again, 
even after it is fully charged. In that case, by recharging the battery as mentioned in the Operating 
Instructions, you will get a correct indication of the battery strength.
PIN Code
Recall
Earth Recall feature is not supported in this model.
L Change the PIN using the following method.
1
2
7
3
Enter the new 4-digit base unit PIN. 
i
{ic}
#
1 (right soft key)  132
19
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
8 Service Mode
8.1.
Engineering Mode
8.1.1.
Base Unit
Important:
Make sure the address on LCD is correct when entering new data. Otherwise, you m ay ruin the unit.
9). Press
   (off) to return to standby mode.
          After that, turn the base unit power off and then power on.
_ _ _ _   _ _
This pictured model is KX-TG7861.
Soft keys
Navigator key/
?
(Volume) key
{OFF}
Dial keypad
1).   Press 
{
}
.
2).   Select "Initial Setup" using      or     
       then press  
{
OK
}
.
H/S key operation
H/S LCD
{^} {V}
4).   Enter "7", "2", "6", "2", "7", "6", "6", "4".
       Note: 7262 7664 = PANA SONI 
                (see letters printed on dial keys)
6).   Enter " ", " ", " ", " " (Address). (*1)
7).   Enter " ", " " (New Data). (*1)
5).   Select "Write EEP" using      or     
       then press 
{
OK
}
 or 
{>}
.
{^} {V}
3).   Select "Line Setup" using      or     
then press 
{
OK
}
 or 
{>}
.
{^} {V}
Set Addr.:
Ringer Setup
Time Settings
Handset Name
Key Finder Setup
Caller Barred
       OK
       OK
       OK
 
Default Data
Set Addr.:
C
OK
New Data
Set Addr.:
C
OK
8).   Press         , a long confirmation beep 
       will be heard.
{
OK
}
Initial Setup
Answer System
       OK
       OK
Auto Talk
Line Setup
Privacy Mode
Base Unit PIN
Repeater Mode
Read EEP
Write EEP
Get S/W Ver
Service Mode
20
KX-TG7851UAB/KX-TG7851UAH/KX-TG7861UAB/KX-TGA785RUB/KX-TGA785RUH
Frequently Used Items (Base Unit)
ex.)
Note:
(*1) Refer to Registering a Handset to a Base Unit in the Operating Instructions.
(*2) When you enter the address or New Data, please refer to the table below.
(*3)
Items
Address
Default Data
New Data
Remarks
C-ID(FSK) sensitivity
06 B9/06 B8
00/51
00/39 
(3 dB up)
00/28 
(6 dB up)
When the hex change from 00/51 to 00/39 or
00/28, gain increase by 3 dB or 6 dB.
C-ID(DTMF) sensitivity
06 BF/06 BE
08/00
0B/4C 
(3 dB up)
0F/F6 
(6 dB up)
When the hex change from 08/00 to 0B/FC or
0F/F6, gain increase by 3 dB or 6 dB.
Frequency
00 08/00 07
02/70
-
-
Use these items in a READ-ONLY mode to
confirm the contents. Careless rewriting may
cause serious damage to the computer system.
ID
00 02~00 06
Given value
-
-
Bell length
03 7D
32 (5 sec) (*3)
1E (3 sec)
14 (2 sec)
This is time until bell stops ringing.
(Unit: 100 msec)
PULSE Dial speed 
(10PPS -> 20PPS)
03 57
28 (40 msec) 
(*3)
11 (17 msec)
-
This is pulse make time. 
(Unit:1 msec)
03 58
3C (60 msec) 
(*3)
21 (33 msec)
-
This is pulse break time. 
(Unit:1 msec)
03 6C
57 (870 msec) 
(*3)
2C (440 msec)
-
This is interdigit time in pulse mode. 
(Unit:1 msec)
Desired Number (hex)
Input Keys
Desired Number (hex)
Input Keys
0
0
A
[R]  +  0
1
1
B
[R]  +  1
.
.
C
[R]  +  2
.
.
D
[R]  +  3
.
.
E
[R]  +  4
9
9
F
[R]  +  5
Bell length
32 (hex) = 50 (dec) 
 50  100 msec = 5000 msec (5 sec)
PULSE Dial speed 
(10PPS -> 20PPS)
28 (hex) = 40 (dec) 
 40  1 msec = 40 msec  
3C (hex) = 60 (dec) 
60  1 msec = 60 msec
57 (hex) = 87 (dec) 
 87  10 msec = 870 msec
Page of 88
Display

Click on the first or last page to see other KX-TG7851UAB / KX-TG7851UAH / KX-TG7861UAB / KX-TGA785RUB / KX-TGA785RUH service manuals if exist.