Nokia 2190 Service Manual chh 8p
Programmes After Market Services (PAMS)
Technical Documentation
HANDSFREE DESKTOP
CHARGER – CHH–8P
PAMS
Technical Documentation
AMENDMENT RECORD SHEET
NHB–3
HF Desktop Charger CHH–8P
Amendment
Number
Date Inserted By Comments
Original 26/97 Page 2
PAMS
Technical Documentation
Handsfree Desktop Charger CHH–8P
Contents
HF Desktop Charger CHH–8P Page 4
General Page 4
User Interface Features Page 5
Charging Indication Page 5
Charge States and Charge Control Page 5
Instructions for Use Page 6
Charging the Phone Battery Page 6
Charging the Extra Battery Page 6
Deep Discharging of the Extra Battery Page 7
Handsfree Function Page 7
Using the Voice Mail Page 7
The Data Connection Page 7
Technical Specifications Page 8
Modes of Operation Page 8
External/Internal Signals and Connections Page 8
Functional Description Page 13
Supply Voltages Page 13
Control Logic Page 13
Port A Signals of the Processor Page 14
Port B Signals of the Processor Page 14
Port C Signals of the Processor Page 14
Port D Signals of the Processor Page 15
Port F Signals of the Processor Page 15
Processor A/D Inputs Page 15
Watchdog Circuits Page 16
Battery Charging Page 16
Spare Battery Discharging Page 16
Microphone Amplifier and Corresponding Switches Page 17
Speaker Amplifier and Corresponding Swithes Page 17
Block Diagram of CHH–8 Page 18
Circuit Diagram of DC3 Power Supply and Control Module Page 19
Circuit Diagram of DC3 Audio Switches and Amplifiers Page 20
Circuit Diagram of Connector Module DC4 Page 21
Layout and Foil Diagrams of DC4 Page 23
Parts List of DC3 Code: 0200211 Page 24
Parts List of DC4 Code: 0200235 Page 31
Exploded View Page 32
Assembly Parts Page 33
NHB–3
HF Desktop Charger CHH–8P
Original 26/97 Page 3
PAMS
Technical Documentation
HF Desktop Charger CHH–8P
Related Documentation
6E 0200211 parts list of DC3
6E 0200235 parts list of DC4
S 0675026 exploded view
General
The HF desktop charger CHH–8P is for the second generation digital
handportable telephones. HF desktop charger is designed for charging
the handportable phone and the spare battery. It provides handsfree function
when the phone is on the charger and there is also a connector for data
accessories. CHH–8P is designed for to be used in the office environment with
the power supply ACS–6.
NHB–3
HF Desktop Charger CHH–8P
circuit diagram of DC3
circuit diagram of DC4
9853931 layout & foil diagr. DC3
9853930 layout & foil diagr. DC4
0260218 mechanics
CHH–8P consists of spare battery charging control processor, charging
indicators and switching mode power supply for charging the phone and the
spare battery. The unit has inbuilt HF speaker and HF microphone but the actual handsfree function is generated in the phone. There are also three operating
buttons. The front one is for muting the microphone during a call, the middle
one is for the voice mail listening and the rear one is for the spare battery
discharge.
Original 26/97 Page 4
PAMS
Technical Documentation
User Interface Features
HF desktop charger is designed for charging the handportable phone and the
spare battery. It provides also handsfree function when the phone is on the
charger. The unit has inbuilt HF speaker and HF microphone but the actual
handsfree function is generated in the phone. There are also three operating
buttons. The front one is for muting the HF microphone, the middle one is for
the voice mail listening and the rear one is for the spare battery discharging.
Charging takes place at a battery temperatures of 5...45 Centigrade. Charge
control of the phone is done with phone microprocessor and charge control of
extra battery is done with separate microprocessor located in a desktop stand.
Phone is always charged first, then extra battery.
A battery gives better capacity if it is occasionally discharged completely. User
can do this by using the ‘deep discharge‘ –feature of CHH–8P. This feature is
provided only extra battery slot and pressing the ‘discharge‘ –button. The extra
battery will then automatically be discharged and charged to full. If this button is
pressed twice then the discharge function is cancelled.
NHB–3
HF Desktop Charger CHH–8P
Charging Indication
Charge is indicated with two dual–colors led‘s, one for the phone and one for
the extra battery pack. The liquid–crystal display of the phone also contains a
three–bar battery display.
Leds are dimmed when there is no phone or extra battery connected.
Right led for handportable:
Red phone led indicates a fast charge mode of the phone battery.
Green phone led indicates that the phone battery is full and tricle charge mode
is on.
Left led for spare battery:
Red spare battery led indicates that the battery is not full; either there is a fast
charge mode active or charging is disabled due to a battery temperature or to
fast charge mode of the phone.
Green spare battery led indicates that the battery is full.
Flashing red spare battery led indicates that a discharge cycle is activated.
Charge States and Charge Control
Charge current for the phone is supplied through a series switch transistor in
the phone. When this transistor is on the charger is supplying a constant
current to the phone. This is the rapid charge mode.
When the transistor is off no current is supplied to the phone and the charger is
in the constant voltage mode.
Original 26/97 Page 5
PAMS
Technical Documentation
Having been charged up in the rapid charge mode, the battery is kept in full
charge using pulsed charging, i.e. switching power alternately on and off at a
variable duty cycle and a frequency of a few Hz.
The desktop charger is also provided with control logic for spare battery charging, which is allowed when no phone is connected or when the phone is in the
pulsed charge mode.
Instructions for Use
Plug in the ACS–6 AC power supply to the mains outlet. Connect the cord from
ACS–6 to the dc connector at the rear of the CHH–8 HF desktop charger.
Charging the Phone Battery
Place the phone into the recess in the charger. The right–hand indicator at the
front edge of the charger shows the charge of the phone battery. The red led is
lit during quick charging, and once the phone battery has reached full charge,
the green led alights, showing that only trickle charging is on.
NHB–3
HF Desktop Charger CHH–8P
When the phone is powered, the charge can be read from three indicator bars
appearing on the phone display. During the quick charging phase, each bar is lit
alternately for one second. Once the battery is fully charged all three bars are
lit. If the charger indicator is not lit when the phone is on the charger, ensure
that the phone is properly in place and that the power supply is correctly
plugged to the charger and to the wall outlet.
The battery will not accept charge if its temperature is below +5 C or above
+45 C.
Charging the Extra Battery
Place the extra battery into the recess in the charger. The left hand indicator of
the charger shows battery charge. During quick charging, the red indicator is lit
and once the battery has reached full charge, the green indicator alights showing trickle charging. If the phone and the extra battery are on the charger at the
same time the phone battery is charged first, followed by charging of the extra
battery.
If the charger indicator is off when the extra battery is installed on the charger,
ensure that the extra battery is properly in place and that the power supply is
correctly plugged in to the charger and to the wall outlet.
The battery will not accept charge at a temperature of below +5 C or above
+45 C.
Original 26/97 Page 6
PAMS
Technical Documentation
Deep Discharging of the Extra Battery
In the interests of best possible battery efficiency, it is recommended that the
battery be deep discharged once a week or so.
To start the deep discharge function, press once the discharge key at the rear
of the charger, whereupon the red indicator showing extra battery charging
starts to flash. Once the battery has been discharged, the charger will automatically start charging it. Should you wish to interrupt discharging, press the discharge key again. The indicator ceases to flash and the charger will resume
battery charging. It is not recommendable to deep discharge a fully charged
battery.
Handsfree Function
When installed in the charging stand, the phone is always in the handsfree
mode of operation. The internal HF speaker and HF microphone are then
activated for the call. It is also possible to turn the phone into HF mode and off
while a call is going on. This is done by removing the phone or placing it on the
charger.
NHB–3
HF Desktop Charger CHH–8P
HF speaker volume is adjusted at the phone volume key, and an outgoing call
can be muted by presssing at the mute key on the front edge of the charger.
The muted state is indicated by the message ”MUTED” on the phone display.
Pressing the key once more cancels muting, shown by the text ”UNMUTED”
which appears on the display for a moment.
Using the Voice Mail
The voice–mail key in the middle of the charger is for calling one’s voice mailbox in the network switching centre and listening to voice messages. When
calling the voice mailbox, the first press on the key makes the call to the
mailbox and the second ends the call.
The Data Connection
The charger contains a 10–pin modular connector for data accessories
(e.g. PCMCIA card).
Original 26/97 Page 7
PAMS
Technical Documentation
Technical Specifications
Modes of Operation
Power off mode: If the unit doesn’t receive power supply to the d.c.
connector there isn’t any voltage on the module.
Standby mode: The unit receives supply voltage to the d.c. connector.
The processor is running but because there isn’t any
phone or spare battery on the cradle, the charger is off
and the audio functions are inactive.
Active mode: The telephone or spare battery is on the cradle so the
charging functions are active. Normally the handsfree
speaker is muted. During a call and during the key
beeps or alarming tones the speaker and corresponding
audio switches are open.
External/Internal Signals and Connections
NHB–3
HF Desktop Charger CHH–8P
The charger has four external and three internal connectors, the AC fast charger connector, the spare battery connector, phone system connector, the data
accessory connector, internal system connector, internal speaker connector
and internal microphone connector.
AC Fast Charger Connector X100
Pin: Line: Function:
1 VDC Supply voltage
2 DGND Power supply ground
Spare Battery Connector X101
Pin: Line: Function:
1, 2, 3 GND Supply power ground
4 BTEMP Battery temperature sensing
5 BSI Battery size identification
6, 7, 8 VBAT Charging voltage
Original 26/97 Page 8
PAMS
Technical Documentation
Phone System Connector X701
Pin: Line: Function:
1 DGND Power supply ground
2 XMIC Microphone signal
3 AGND Analog ground
4 TDA Transmitted data
5 M2BUS Serial bidirection bus
6 HOOK Not used
7 PHFS Not used
8 VC Supply/charging
9 DGND Power supply ground
10 XEAR/HFJWR Earphone signal/CHH–8 power switch
11 DSYNC Data syncronisation
NHB–3
HF Desktop Charger CHH–8P
12 RDA Received data
13 BIND Not used
14 VF Not used
15 DCLK Data clock
16 VC Supply/charging
Data Accessory Connector X510
Pin: Line: Function:
1 DSYNC Datasyncronisation
2 +VD Supply voltage
3 DGND Supply power good
4 M2BUS Serial bidirection data
5 RDA Received data
6 TDA Transmitted data
7 AGND Analog ground
8 XMIC Microphone signal
9 XEAR Earphone signal
10 DCLK Data clock
Original 26/97 Page 9
PAMS
Technical Documentation
Internal System Connector X500/DC3, X700/DC4
Pin: Line: Function:
1, 2 VC Supply/charging
3 +5V
4 PHFS Not used
5 DGND Power supply ground
6 DSYNC Data syncronisation
7 DCLK
8 TDA Transmitted data
9 RDA Received data
10 DGND Power supply ground
11 M2BUS Serial bidirection bus
12, 14 AGND Analog ground
NHB–3
HF Desktop Charger CHH–8P
13 XEAR Earphone signal
14 AGND Analog groud
15 XMIC Microphone signal
16 AGND Analog ground
17, 18 DGND Power supply ground
Internal Speaker Connector X460/DC3
Pin: Line: Function:
1 HFSPK HF speaker signal
2 AGND Analog ground
External Microphone Connector X440/DC3
Pin: Line: Function:
1 HFMIC HF microphone signal
2 AGND Analog ground
Original 26/97 Page 10
Loading...