Sony SPP-68 Service Manual
SPP-68
SERVICE MANUAL
SPECIFICATIONS
E Model
MICROFILM
CORDLESS TELEPHONE
TABLE OF CONTENTS
1. SERVICING NOTES ................................................ 3
2. GENERAL
Setting up the phone ....................................................... 4
Making and receiving calls ............................................. 4
Speed dialing ................................................................... 5
Resetting the digital security code.................................. 5
Paging .............................................................................. 5
3. DISASSEMBLY ......................................................... 6
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
4. TEST MODE
4-1. Base Unit Section............................................................ 8
4-2. Handset Section............................................................... 10
5. ELECTRICAL ADJUSTMENTS
5-1. Base Unit Section............................................................ 13
5-2. Handset Section............................................................... 14
6. DIAGRAMS
6-1. Block Diagram – BASE UNIT Section –...................... 19
6-2. Block Diagram – HANDSET Section –........................ 21
6-3. Notes for Printed Wiring Board and
Schematic Diagram ......................................................... 23
6-4. Printed Wiring Boards – BASE UNIT Section – .......... 25
6-5. Schematic Diagram – BASE UNIT Section –................ 27
6-6. Printed Wiring Board – HANDSET Section –.............. 29
6-7. Schematic Diagram – HANDSET Section –................. 31
6-8. IC Pin Function Description ........................................... 33
7. EXPLODED VIEWS ................................................ 35
8. ELECTRICAL PARTS LIST ............................... 37
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIA GRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.
– 2 –
SECTION 1
SERVICING NOTES
PREVENT ELECTROSTATIC DESTRUCTION
• To prevent electrostatic destruction in replacing the main board, etc., fasten the CN602 cable as shown below.
JW5
CN602
SUB board
BASE MAIN board
cabinet lower
C502
X501
JW12
JW6
JW10
D101
JW7
C303
JW3
– 3 –
SECTION 2
GENERAL
This section is extracted from
instruction manual.
– 4 –
– 5 –
SECTION 3
d
y
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
• HANDSET
REAR CABINET
3
two claws
A
4
Removal the rear cabinet to
direction of the arrow
2
two screws
(BTP2.6
A
.
×
8)
1
battery case li
HAND MAIN BOARD
1
screw
(BTP2.6
3
two claws
×
12)
2
two screws
(BTP2.6
×
8)
3
HAND MAIN board
5
connector
(CN101)
– 6 –
4
terminal ass’
(charge)
• BASESET
l
BASESET (UPPER) ASS’Y
1
2
baseset (upper) ass’y
screw
(P3
×
10)
1
screw
(P3
×
10)
3
connector
(CN301)
1
two screws
(P3
×
10)
BASE MAIN BOARD
4
BASE MAIN board
4
SUB board
1
three screws
(BTP2.6
×
8)
2
screw
(BTP2.6
3
ring termina
×
8)
– 7 –
SECTION 4
)
TEST MODE
4-1. BASE UNIT SECTION
<Enter the Test Mode>
Manual T est Mode
1. Set the [DIALMODE] switch to “P” (pulse).
2. While pressing the [PAGE] key, switch on the power supply
(Reset start).
3. With the [PAGE] key, still held down, switch the [DIALMODE]
switch “P” (pulse) n “T” (tone) n “P” (pulse).
4. When you release the [PAGE] key, test mode starts.
5. Frist dial “0” at 10 pps. Then ouput “1”, “4”, “8” and “#”
with DTMF.
6. Set to TX ON. Goes to external line state in 1 CH.
• Release the Test Mode
1. Pull out the AC adapter and turn off the power.
[BASE MAIN Board] (Conductor side)
Machine Test Mode
1. With one of the CH setting terminals in “H” input state, cause
Reset of Power ON. Equipment enters machine test mode.
2. Setting of CH according to logic input with CH setting terminal.
3. ON/OFF of TX is according to the input logic of the Dial Mode
terminal.
• Release the Test Mode
1. Pull out the AC adapter and turn off the power.
2. Remove the short plug and turn on the power again.
TP61 (M1)
TP62 (M2)
TP63 (M3)
TP66 (TEST2)
TP21 (CHG DET)
TP46 (PAGE)
MJ201
TP47 (DIAL MODE
TP106 (5V)
IC501
TP67 (TEST1)
TP64 (M4)
TP65 (TEST3)
IC101
CF101
– 8 –
Channel Setting
During startup in machine test mode, make the following channel settings by loading the terminal input data.
Pin No. @£ @¢ @∞ @§ TX Frequency RX Frequency
Channel M1 (TP61) M2 (TP62) M3 (TP63) M4 (TP64) (MHz) (MHz)
CH1 H L L L 43.720 48.760
CH2 L H L L 43.740 48.840
CH3 H H L L 43.820 48.860
CH4 L L H L 43.840 48.920
CH5 43.920 49.020
CH6 43.960 49.080
CH7 44.120 49.100
CH8 44.160 49.160
CH9 44.180 49.200
CH10 44.200 49.240
CH11 44.320 49.280
CH12 44.360 49.360
CH13 44.400 49.400
CH14 H L H L 44.460 49.460
CH15 L H H L 44.480 49.500
CH16 H H H L 46.610 49.670
CH17 L L L H 46.630 49.845
CH18 46.670 49.860
CH19 46.710 49.770
CH20 46.730 49.875
CH21 46.770 49.830
CH22 46.830 49.890
CH23 H L L H 46.870 49.930
CH24 L H L H 46.930 49.990
CH25 H H L H 46.970 49.970
TEST1 L L H H 43.780 48.800
TEST2 H L H H 43.890 48.970
TEST3 L H H H 46.800 49.910
TEST4 H H H H 46.900 49.950
Machine Test Mode Input/Output
1. Input (Input ports for other than main tasks)
Pin Name Pin No. Function Logic
M1 (TP61) @£
M2 (TP62) @¢
M3 (TP63) @∞
M4 (TP64) @§
DIAL MODE (TP47) !¶ Setting the TX ON/OFF H (T); OFF, L (P): ON
PAGE (TP46) !§ Machine: Dial data “5” is output to Key input with “L” input. The first time there is
TEST 1 (TP67) TEST 2 (TP66) TEST 3 (TP65)
@ª @• @¶
L L L If RSSI (H) is, detected: Light ON If RSSI (H) is, detected: Light ON
L L H If RSSI (L) is, detected: Light ON If RSSI (L) is, detected: Light ON
L H L If TX LOCK is detected: Light OFF If TX LOCK is detected: Light OFF
L H H If RX LOCK is detected: Light OFF If RX LOCK is detected: Light OFF
H L L BEEP output
H L H ID CODE output
H H L If RING is detected: Light ON If RING is detected: Light ON
H H H If PAGE KEY is input: Light ON If PAGE KEY is input: Light ON
Setting the CH (channel) Refer to channel setting
Manual: Channel increment Incrementing of channels in order from 16 to 25.
DTMF/DP exchange output of “5” with DTMF.
Operation with CHARGE LED Operation with TX ON
2. Output (Output ports for other than main tasks)
Pin Name Pin No. Function H Logic L Logic
CHARGE DET !• State in section 1. Input Refer to Section 1. Input
– 9 –
4-2. HANDSET SECTION
)
)
)
)
)
<Enter the Test Mode>
Manual T est Mode
1. Enter the test mode by pressing [0] key while pressing the [1]
key and [TALK] when in idle condition.
(Key operation: [0] n [1] n [TALK] )
2. The RINGER will ring for 500msec when the test mode is
started.
3. Measurement mode of consumption current. (42# state. Refer
to 2-3)
4. Use key input to carry out the various settings.
5. Use port inputs to set output from LED terminals.
• Release the Test Mode
1. Press the [0], [0] and [#] key.
2. Turn OFF the power. (Remove the battery and replace them)
[HAND MAIN Board] (Conductor side)
L102
IC101
Machine Test Mode
1. When power on reset is applied while a H (high) is input to the
TEST SW (TP43) terminal (IC501 pin $º), the RING (Level
H, 500 msec) sounds.
2. Following that, at a timing in which the TEST SW terminal
has “H” (High) input, there is output of “L” by the CH (Channel) setting control terminal. Then there is PLL setting to the
CH which was read to with the CH setting terminal according
to that “L” output.
3. Set the TX setting to TX OFF.
4. The TX channel is used by voice, not by data.
5. Use port inputs to set output from LED terminals
• Release the Test Mode
1. Turn off the power.
2. Remove the short plug and turn on the power.
TP44 (TEST ACT)TP43 (TEST SW)TP36 (H)TP35 (TALK LED)
TP13 (ROW 5
TP14 (ROW 4
TP15 (ROW 3
IC501
TP16 (ROW 2
TP17 (ROW 1
TP55 (KEY LED)
TP33 (TEST CH)
– 10 –
Loading...