7.ELECTRICAL PARTS LIST ............................... 45
SECTION 1
SERVICING NOTES
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
• Replacement of HD64F7198RVBP16 (IC722) used in this set
requires a special tool. Therefore, it cannot be replaced.
– 2 –
Page 3
SECTION 2
GENERAL
This section is extracted from
instruction manual.
– 3 –
Page 4
– 4 –
Page 5
– 5 –
Page 6
– 6 –
Page 7
– 7 –
Page 8
– 8 –
Page 9
– 9 –
Page 10
– 10 –
Page 11
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Page 12
• This set can be disassembled in the order shown below.
SECTION 3
DISASSEMBLY
Set
Note: Follow the disassembly procedure in the numerical order given.
Lid Assy, Upper
Case Assy
Main/SW Board
Eject Mech Assy
Connector Unit, MS
“LID ASSY, UPPER”, CASE ASSY
3 tapping screw
2 Open the battery case lid.
Audio Board,
“Microphone Unit, Back Electret” (MIC161)
1 screw
(B1.7 × 12)
5 Remove two solders of the
speaker lead wires (SP161).
speaker lead wires
4 claw
fabric non woven (RE)
Note: In routing the speaker lead wires,
fix them to the positions shown in figure
using three pieces of fabric non woven (RE).
6 lid assy, upper
4 two
claws
4 two claws
fabric non woven (RE)
7 case assy
– 12 –
Page 13
MAIN/SW BOARD
e
qs LCD assy
8 SW board
7 connector
(CN722)
qd MAIN board
9 Remove two solders of the
LED back light (D720).
qa flexible board
(“indicator module, liquid crystal”)
(CN724)
0 claw
0 two claws
Note: Do not use an excessive force
when raising the MAIN board.
1 Remove two solders of th
battery terminal (+)/(–).
2 tapping screw
5 Raise the MAIN board.
4 connector (CN761)
3 claw
6 flexible board
(“connector unit, MS”) (CN723)
– 13 –
Page 14
EJECT ASSY
Note: When assembling the eject assy,
engage the slider (eject) with
the slot in the knob (eject).
slider (eject)
2 Remove the eject assy
to direction of the arrow.
1 screw
(M1.4 × 1.4)
slot
knob (eject)
“CONNECTOR UNIT, MS”
Note: Open the claw slowly with
a screwdriver,
because it is easily broken.
2 Remove the MS connector unit to
direction of the arrow A.
A
1 Open the claw.
1 Open the claw.
– 14 –
Page 15
AUDIO BOARD, “MICROPHONE UNIT, BACK ELECTRET” (MIC161)
)
Note: On installation AUDIO board, adjust S161, S761,
S763, S764 and knobs (HOLD, DBB)
7 “microphone unit, back electret” (MIC161
1 Raise the
microphone cushion.
2 claw
S764
8 AUDIO board
S161
3 guide (PWB)
S761
knob (HOLD)
three knobs (DBB)
S763
INSTALLATION BACK ELECTRET MICROPHONE UNIT (MIC161)
Note: Follow the assembly procedure in the numerical order given.
guide (PWB)
bosses
6 Remove two solders of the
back electret microphone unit
lead wires (MIC161).
5 claw
4 window (LED)
2 Install the back electret microphone
unit (MIC161), aligning with three bosses.
Note: Take care not to allow the lead wires
to ride on the
!
portion.
#
slot
boss
1 Put two lead wires
in the slot of the guide (PWB).
– 15 –
guide (PWB)
3 Let excess lead wires
through the guide (PWB)
in the arrow direction.
Page 16
SECTION 4
TEST MODE - uCOM Ver:
rabbit b1.00
TEST MODE
[Setting Method of Test Mode]
There are two different methods to set the test mode:
1 Short BP701 (TEST) on the MAIN board with a solder bridge
(connect pin <zmb of IC722 to the ground).
Then, insert the memory stick and turn on the power.
– MAIN BOARD (Side B) –
2 In the normal mode, insert the memory stick. While pressing
[STOP] and [MENU] key, Turn the [HOLD] switch.
the
[Releasing Method of Test Mode]
For test mode set with the method 1:
Turn off the power and remove the memory stick. Then, open the
solder bridge on BP701 (TEST) on the MAIN board.
For test mode set with the method 2:
Turn off the power and remove the memory stick.
[Operation in the Test Mode]
When the test mode is set, the LCD displays as shown below.
LCD display
1. Audio test
• Pressing the z key causes “SP DSP LOOP” to be displayed
on the LCD and the LED lights in red.
• Pressing the jog lever causes “LP DSP LOOP” to be displayed
on the LCD and the LED lights in green.
• Moving down the jog le ver causes “MUTE ON” to be displayed
on the LCD and the LED lights in amber.
• Moving up the jog lever causes “MUTE OFF” to be displayed
on the LCD.
• Pressing the [MENU] key causes “1.3 kHz BEEP” to be dis-
played on the LCD and a beep to sound.
• Pressing the [STOP] key causes the set to return to the state at a
setting of test mode.
JC724
4
5
IC523
1
+
C526
3
BP701 Short: Test mode
1
4
BP701
(TEST)
(
Open: Normal mode
IC723
C730
R756R711R710
1-675-564-
)
2. VOR test
• Turning the [VOR] switch ON causes “VOR TEST” to be dis-
played on the LCD, and when sounds are detected, “SOUND
!!!” is displayed on the LCD and the LED lights in red. Also,
when no sound is detected, “NO SOUND” is displayed on the
LCD and the LED goes off.
• Turning the [VOR] switch OFF causes the set to return to the
state at a setting of test mode.
3. Sleep test
• Pressing the S key causes the set to enter sleep state in one
second.
8
(When the [HOLD] switch is OFF , the LCD goes off. Also, when
ON, “SLEEPING” is displayed on the LCD.)
5
• Pressing another key causes the set to release sleep state.
4. Power supply test (stop mode)
• When power supply is a dry battery and its voltage is over 2V,
the LCD lights in green. Also when the v oltage is belo w 2V the
LED lights in red.
• When power supply is a DC power supply, the LED lights in
amber.
5. Destination switching
Pressing simultaneously the [ A-B REPEAT] key and jog lever
z
causes “for JAPAN” to be displayed on the LCD and LED lights
in green. Also, pressing simultaneously the [ A-B REPEAT] and
z
the z keys causes “for WORLD” to be displayed on the LCD
and LED lights in red.
– 16 –
Page 17
6. LCD test
• While pressing the [DISPLAY] key, move down the jog lever
causes “CONTRAST v” to be displayed on the LCD and the
contrast of LCD increases. Also, while pressing the [DISPLAY]
key, move up the jog lever causes “CONTRAST V” to be displayed on the LCD and the contrast of LCD decreases.
• LCD lights on all while the [FOLDER] key is pressed together
with the [DISPLAY] key, and “LCD TEST” is displayed on the
LCD if releasing keys. Also, LCD lights off all while the
[INDEX] key is pressed together with the [DISPLAY] key, and
“LCD TEST” is displayed on the LCD if releasing keys.
7. Menu reset
Pressing simultaneously the [STOP] and [ERASE] keys causes
the set to return to initial conditions except the destination and
contrast setting.
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B)the pattern face are indicated.
Parts face side:Parts on the parts face side seen from
(Side A)the parts face are indicated.
• Main board is six-layer printed board.
Howev er , the patterns of intermediate-layer ha v e not been included in this diagrams.
IC722 is not replaceable
*
• Lead Layouts
surfac
Lead layout of conv entional ICCSP (chip size package)
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from
(Side B)the pattern face are indicated.
Parts face side:Parts on the parts face side seen from
(Side A)the parts face are indicated.
• AUDIO board is a six-layer printed board.
However, the patterns of intermediate-layer have not
been included in this diagram.
1
A
AUDIO BOARD
B
C
D
E
F
G
H
R771
R774
I
J
K
05
2345678910111213
(PLUG IN POWER)
FB162
C175
3
IC162
2
R172
C174
R173
R174
C182
J161
C173
MIC
Q761
K
A
R179
D562
R772
D761
–2–1
2C
1C
2BE1B
RED
BLK
21
40
+
C170
D761
OPR
–1 (PLAY : GRN)
–2 (REC : RED)
C161
C172
R777
R776
C169
C168
R168
R169
C167
FB161
C166
R170
C162
C171
R161
+
R162
D563
20
1
R175
5
1
R164
C163
K
A
C176
3
4
R773
R189
R166
R167
1
IC161
5
+
CN761
11
1-675-565-
(11)
(SIDE A)
R778
R561
R562
S761
HOLD
HOLD
OFF
J162
v
(EARPHONE)
AUDIO BOARD
R185
S
Q165
D
G
C196
B
FASTSLOW
IC168
C
E
4
1
5
IC562
1
+
C563
C133
8
S763
PLAY SPEED
NORMAL
MIC SENS
HIGH LOW
S764
VOR
OFF ON
IC563
+
Q161
5
S161
51
4
–2
5
4
IC561
R775
–1
C561
R195
+
C565
3
3
1
C562
RV161
VOL
+
C566
+
C567
8
IC163
1
L561
AK
D561
4
2
5
R133
C131
4
3
R196
C132
R197
R131
Q163
2B E 1B
2C 1C
5
IC169
1
+
C564
R136
C188
R130
C187
4
R137
FB133FB132
C134
+
R135
R184
R134
R132
C186
C130
C199
R199
R198
3
R183
15
1630
Q162
SP161
(SPEAKER)
(SIDE B)
FB131
C177
R177
R178
R181
R180
ECB
R186
C180
IC164
4
IC165
5
ECB
Q167
C189
5
IC564
1
BLK
RED
C179
1
3
1
C183
4
3
+
C181
11
1-675-565-
(11)
MIC161
MIC
A
MAIN BOARD
CN725
– 30 –
– 31 –
– 32 –
Page 22
5-6.SCHEMATIC DIAGRAM – AUDIO Board – • See page 36 for Waveforms. • See page 37 for IC Block Diagrams.
ICD-MS1
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
no mark : PLAY
() : REC
• Voltages are taken with a V OM (Input impedance 10 MΩ).
Voltage v ariations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage v ariations may be noted due to normal production
tolerances.
• MAIN BOARD IC722 HD64F7198RVBP16 (SYSTEM CONTROLLER)
Pin No.
1XEPCSOChip select signal output to the EEPROM (IC723) “L” active
2XLCDCSOChip select signal output to the liquid crystal display module (LCD720) “L” active
3VCC—Power supply terminal (+3.3V)
4PA23ONot used (open)
5SRCSOChip enable signal output to the static RAM (IC727) “L” active
6PA21ONot used (open)
7PA20ONot used (open)
8VSS—Ground terminal
9MSINSI
10XRDOOutput enable signal output to the static RAM (IC727) “L” active
11MSBSOSerial bus state signal output to the memory stick
12MSDIOI/OSerial data input/output with the memory stick
13MSCLKOSerial clock signal output to the memory stick
14XUBOData bite control signal output to the static RAM (IC727) “L” active
15XLBOData bite control signal output to the static RAM (IC727) “L” active
16XWAITINot used (open)
17RTCCEOChip enable signal output to the real time clock (IC721) “H” active
18PA4ONot used (open)
19PA0ONot used (open)
20DSPTXOPlayback serial data output to the ADPCM (IC164)
21DSPRXIRecording serial data input from the ADPCM (IC164)
22VCC—Power supply terminal (+3.3V)
23VSS—Ground terminal
24LCDDOOSerial data output to the liquid crystal display module (LCD720)
25LCDDIISerial data input from the liquid crystal display module (LCD720)
26VSS—Ground terminal
27VCC—Power supply terminal (+3.3V)
28PB17ONot used (open)
29PB16ONot used (open)
30RDWRORead/write data output to the static RAM (IC727) “L”: write data , “H”: read data
31WAKEMSK2OX (R) sync control signal output terminal
32WAKEMSKOX (R) sync control signal output terminal
33VSS—Ground terminal
34KEYCTL3OKey send signal output to the key matrix Not used (open)
35 to 37
38MICPOWO
39VCC—Power supply terminal (+3.3V)
40AMPOWOPower supply on/off control signal output to the power amplifier (IC168) “H”: power on
41SPOWEROPower supply on/off control signal output to the ADPCM (IC164) “H”: power on
42MSPOWOPower supply on/off control signal output to the memory stick “H”: power on
43VSS—Ground terminal
44 to 50A17 to A11OAddress signal output to the static RAM (IC727)
51VSS—Ground terminal
Pin Name
KEYCTL2 to
KEYCTL0
I/ODescription
Memory stick insert detection signal input terminal
“L”: memory stick in, “H”: memory stick out
OKey send signal output to the key matrix
Power supply on/off control signal output to the mic amplifier (IC161)
“H”: power on (rec mode)
– 39 –
Page 25
Pin No.
52A10OAddress signal output to the static RAM (IC727)
53VCC—Power supply terminal (+3.3V)
54 to 59A9 to A4OAddress signal output to the static RAM (IC727)
62 to 64A3 to A1OAddress signal output to the static RAM (IC727)
65PC0INot used (open)
66VCC—Power supply terminal (+3.3V)
67VSS—Ground terminal
68RXD2ISerial reception data input from the real time clock (IC721) and EEPROM (IC723)
69TXD2O
70SCK2O
71XDDENODSP control interface enable signal output to the ADPCM (IC164) “L” active
72XDPDNOPower down control signal output to the ADPCM (IC164) “L”: power down
73SP/LPOFilter switching signal output terminal “L”: SP mode, “H”: LP mode Not used
74BTLSEOBTL/SE switching signal output terminal “L”: SE mode, “H”: BTL mode
75VSS—Ground terminal
76XLCDRSTOReset signal output to the liquid crystal display module (LCD720) “L”: reset
77XBCKODSP bit clock signal output to the ADPCM (IC164)
78LCDSCKOSerial data transfer clock signal output to the liquid crystal display module (LCD720)
79VCC—Power supply terminal (+3.3V)
80BATTCTLINot used
81FWECTLOFWE control signal output terminal “L” active Connected to the FWE (pin <zz. ) in this set
82VSS—Ground terminal
83VCC—Power supply terminal (+3.3V)
84LMUTEOLine muting control signal output terminal “H”: line muting on
85HPMUTEOMuting control signal output to the earphone “H”: muting on
86VSS—Ground terminal
87EPRSTOReset signal output to the EEPROM (IC723) “L”: reset
88BEEPCTLOBeep sound control signal output terminal “L”: beep sound on
89 to 92D15 to D12I/OTwo-way data bus with the static RAM (IC727)
93VCC—Power supply terminal (+3.3V)
94D11I/OTwo-way data bus with the static RAM (IC727)
95VSS—Ground terminal
96 to 102D10 to D4I/OTwo-way data bus with the static RAM (IC727)
109VSS—Ground terminal
110MODE0ISetting terminal for the CPU operational mode (fixed at “H” in this set)
111MODE1ISetting terminal for the CPU operational mode (fixed at “L” in this set)
112VCC—Power supply terminal (+3.3V)
113EXTALIMain system clock input terminal (3.7706 MHz)
114VSS—Ground terminal
115XTALOMain system clock output terminal (3.7706 MHz)
Pin Name
D3 to D0I/OTwo-way data bus with the static RAM (IC727)
I/ODescription
Serial transmission data output to the ADPCM (IC164), real time clock (IC721) and EEPROM
(IC723)
Serial data transfer clock signal output to the ADPCM (IC164), real time clock (IC721) and
EEPROM (IC723)
– 40 –
Page 26
Pin No.
116VCC—Power supply terminal (+3.3V)
117MODE2ISetting terminal for the CPU operational mode (fixed at “L” in this set)
118MODE3ISetting terminal for the CPU operational mode (fixed at “L” in this set)
119FWEI
120WAKEUPIKey interruption processing start signal output terminal
121XRSTI
122VSS—Ground terminal
123CKIOI/ONot used (open)
124VCC—Power supply terminal (+3.3V)
125XHSTBYINot used (fixed at “H”)
126XWDTOVFONot used (open)
127MODE4ISetting terminal for the CPU operational mode (fixed at “L” in this set)
128MODE5ISetting terminal for the CPU operational mode (fixed at “L” in this set)
129PLLVSS—Ground terminal (for PLL)
130PLLCAP1IConnected to the external capacitor for PLL
131PLLCAP2IConnected to the external capacitor for PLL
132PLLVCC—Power supply terminal (+3.3V) (for PLL)
133RXPROGINot used
134VSS—Ground terminal
135XTAL32OSub system clock output terminal Not used (open)
136EXTAL32ISub system clock input terminal Not used (fixed at “H”)
137VCC—Power supply terminal (+3.3V)
138TXPROGONot used
139KEYPUPOKey power control signal output terminal
140VSS—Ground terminal
141CK—Not used (open)
142VCC—Power supply terminal (+3.3V)
143VSS—Ground terminal
144HPJACKIEarphone jack detection signal input terminal “L”: earphone in
145REDLEDOLED drive signal output terminal of the rec indicator (D761 red) “H”: LED on (rec mode)
146GRNLEDO
147XVORINI
148RTCINTRINot used
149RTCINT1I
150XDCINIDC power supply detection signal input terminal “L”: DC power supply, “H”: dry battery
151MSEJI
152VSS—Ground terminal
153XEPBUSYIReady/busy detection signal input from the EEPROM (IC723) “L”: busy
154PULLUPOPower supply output terminal (+3.3V)
155PE22ONot used (open)
156PE23ONot used (open)
Pin Name
I/ODescription
FWE control signal input terminal “L” active
Connected to the FWECTL (pin ia) in this set
System reset signal input from the reset signal generator (IC726) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
LED drive signal output terminal of the play indicator (D761 green)
“H”: LED on (play mode)
Detect whether audio signal is entered or not input from the VOR detection circuit (IC163)
“L”: signal is entered, “H”: signal is not entered
Alarm interruption signal and regular period interruption signal input from the real time clock
(IC721)
Memory stick insert detection signal input terminal
“L”: memory stick in, “H”: memory stick out
– 41 –
Page 27
Pin No.
0
157PF1ONot used (open)
158PF2ONot used (open)
159SYNCOFS sync signal output to the ADPCM (IC164)
160LIGHTO
161VCC—Power supply terminal (+3.3V)
162PF6ONot used (open)
163PF7ONot used (open)
164VSS—Ground terminal
165AVSS—Ground terminal (for A/D converter)
166XHOLDIHOLD switch (S761) input terminal “L”: HOLD on, “H”: HOLD off
167 to 17
171VORSWIVOR switch (S764) input terminal “L”: VOR on, “H”: VOR off
172SPEEDI
173BATTIDry battery power supply voltage detection signal input terminal (A/D input)
174TEST1ISetting terminal for the test mode Not used (fixed at “H”)
175TEST2ISetting terminal for the test mode “L”: test mode (normally: fixed at “H”)
176AVCC—Power supply terminal (+3.3V) (for A/D converter)
Pin Name
KEYIN3 to
KEYIN0
I/ODescription
LED drive signal output terminal of the liquid crystal display module (LCD720) back light
indicator (D720) “H”: LED on
IKey return signal input from the key matrix “L” input when key pressing
PLAY SPEED select switch (S763) input terminal (A/D input)
“L”: SLOW, “M”: FAST, “H”: NORMAL
– 42 –
Page 28
SECTION 6
EXPLODED VIEWS
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑↑
Parts Color Cabinet's Color
(1) UPPER LID ASSY SECTION
4
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference number in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
8
7
5
6
not supplied
6
3
SP161
1
2
Ref. No.Part No.DescriptionRemark
14-217-030-11 EMBLEM (NO. 2.8), SONY
24-222-641-11 WINDOW (LCD)
34-222-642-01 SHEET (LCD), ADHESIVE
4X-4952-427-1 LID SUB ASSY, UPPER
54-973-264-01 SCREW (1.7X2.5)
IC1618-759-657-71 IC LMV321M7X
IC1628-759-586-57 IC AN6123MS-TXL
IC1638-759-701-51 IC NJM2072M
IC1648-759-648-02 IC ML7029MBZ020
IC1658-759-567-10 IC XC25A08510MR
IC1688-759-648-00 IC TPA311DGNR
IC1698-759-058-58 IC TC7S04FU (TE85R)
IC5618-759-657-77 IC XC6371C402PR
IC5628-759-657-74 IC XC62HR3302MR
IC5638-759-661-66 IC XC62HR3102MR
IC5648-759-657-73 IC XC62HR3502MR
< JACK >
J1611-784-848-21 JACK (MIC (PLUG IN POWER)
J1621-784-943-21 JACK (SMALL TYPE) (v)
< COIL >
L5611-419-486-21 COIL, CHOKE100uH
< MICROPHONE >
MIC161 1-542-421-11 MICROPHONE UNIT, BACK ELECTRET (MIC)
IC5218-759-589-39 IC XC61AN0902MR
IC5228-759-661-67 IC XC6368A351MR
IC5238-759-661-66 IC XC62HR3102MR
IC5248-759-661-66 IC XC62HR3102MR
IC7218-759-648-04 IC RTC4574JE-TP
@ IC7228-759-647-99 IC HD64F7198RVBP16
IC7238-759-468-72 IC AK6420AM-E2
IC7268-759-661-68 IC XC61FC2812MR
IC7278-759-653-55 IC TC55V200FT1 (YEL)
IC7288-759-657-75 IC XC62FP3001MR
701-418-736-21 CONNECTOR UNIT, MS
D7201-517-926-11 LIGHT, LED BACK
LCD720 1-803-834-11 INDICATOR MODULE, LIQUIDCRYSTAL
MIC161 1-542-421-11 MICROPHONE UNIT, BACK ELECTRET
SP161 1-529-620-11 SPEAKER (3.6cm)
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