Roadstar CLT-700 User manual

Service Manual - CLT-700
Service Manual - CLT-700
CLT-700
R

1. DESCRIPTION OF EQUIPMENT
1. TYPE OF THE CIRCUIT
A. BASE UNIT RECEIVER ; Double convers on superheterodyne rece ver
B. HANDSET RECEIVER ; Double convers on superheterodyne rece ver
2. FREQUENCY AND CHANNELS
A. BASE UNIT CT1 CT1+
TX 959.0125 – 959.9875MHz 930.0125MHz – 931.9875MHz
RX 914.0125 – 914.9875MHz 885.0125MHz – 886.9875MHz
B.HANDSET
TX 914.0125 – 914.9875MHz 885.0125MHz – 886.9875MHz
RX 959.0125 – 959.9875MHz
930.0125MHz – 931.9875MHz
C. CHANNELS 40 80
D. CH SPACING 25KHz 25KHz
3. TRANSMIT POWER : 10mW
4. OPERATING VOLTAGE
A. BASE UNIT ; AC 230V / 50Hz
B. HANDSET ; DC 3.6V
5. OPERATING TEMPERATURE : 0 ~ 55 C

2. CIRCUIT DESCRIPTION
A. BASE UNIT
1. Pow r supply circuit
The DC 9V from the AC adaptor s suppl ed to JP3 (DC modular jack).
Th s nput voltage s suppl ed to the ma n c rcu t through D8 (d ode) and suppl ed to the
charge c rcu t.
The voltage from D8 s regulated to 5V by regulator U9. Th s regulated 5V s suppl ed
to ma n c rcu t and RF c rcu t.
2. Charging circuit
Charg ng c rcu t s composed of U11, Q11, Q12, R99, R100, R102, R103 and R104.
Th s charg ng c rcu t suppl es constant current to the handset batter es through CHG+1
and CHG-1.
When the charge current flows through R100, U11 (photo-coupler) detects the current
and send a CHARGE s gnal to p n 23 of U4 (CPU).
Then LD4 (VISION) or LD6 (INNO)1 s l ghted by the command from CPU (p n 28)
LED_CHG.
3. R c iving audio signal from t l phon lin
The aud o s gnal from JP1 (telephone l ne modular jack) goes p n 1 of U1 (speech
network) through br dge d ode composed of D1, D2, D3 and D4, C814 and sw tch ng
trans stor Q3.
After be ng ampl f ed n speech network, t comes out from p n 4 and goes to the p n8 of
U10 (compander) through R81 and C62.
Th s s gnal s ampl f ed and compressed for no se reduct on then goes through 3rd
order low pass f lter composed of op amp n U10, C52, C53, C54 R72, R73 and R74.
Th s s gnal s sent to the modulat on nput (MOD_AUDIO) of the RF block through C51,
R70 and RV3 and transm tted to the handset.
4. S nding audio signal to t l phon lin
Rece ved RF s gnal from handset s detected n the RF block and the demodulated
aud o s gnal (DEMOD_AUDIO) s f ltered by low pass f lter composed of U8A, C41,
C42, C43, R57, R58 and R59 through C44. Th s aud o s gnal s f ltered aga n by
h gh pass f lter composed of op amp n U10, C37, C38, C39, R53, R54 and R55 then
expanded n U10.
The expanded s gnal com ng from p n 19 of U10 goes to the p n 6 and 7 of U1 (speech
network) through C34 and R52.

Speech network adjusts a transm t s gnal ga n and sends t to the telephone l ne
through sw tch ng trans stor Q3, br dge d ode (D1, D2, D3 and D4) and modular jack
JP1.
5. S nding and R c iving of data signal
The send ng MSK data comes out from TX_DATA of CPU (p n 43), and enters nto p n
4 of U10 (compander).
It s modulated at RF block through the same path as aud o s gnal.
The rece ved MSK data wh ch demodulated at RF block w th the same manner as
aud o s gnal s go ng to the low path f lter composed of U8C, C47, C48, C49, R64, R65
and R67. F ltered s gnal s comparated at U8D. The square wave from U8D(RX_DATA)
s fed to p n 44 of CPU.
6. Ring d t ctor circuit
When the r ng s gnal s suppl ed to U2(photo coupler) through C1, R1, DZ1, DZ2 and
R3, U2 detects t and send a RING_SIGNAL s gnal to p n 31 of U4 (CPU).
Then the base un t sends a r ng ng data through the "send ng data path" to the
handset.
7. Lin d t ct circuit
If the telephone l ne s connected, the Q2 w ll be on, LINE_DETECT s gnal become low
level. Then CPU knows that tel-l ne s connected.
If the telephone l ne s not connected or h gher pr or ty telephone s operated, the Q2
w ll be off and CPU knows that tel-l ne s not connected or h gher pr or ty telephone s
operat ng.
Th s funct on s factory settable opt on.
8. DTMF signal
In case that the phone s n tone d al ng mode, t s poss ble to use DTMF d al.
DTMF s gnal s generated by U3 by the command of D0, D1, D2 and D3 from CPU
(p n 11, 12, 13, and 14).
DTMF s gnal from U3 (p n 14) s suppl ed to the p n 11 of U1 and sent to the telephone
l ne.
9. Puls dialing
In case that the phone s n pulse d al ng mode, t s poss ble to use pulse d al.
The pulse s gnal s made by sw tch ng Q3 (sw tch ng TR) on and off by
PULSE_CON(CPU p n 30).

Dur ng the pulse comes out, the CPU makes the Q5 on by ma nta n ng PPD_CON (p n
25 of CPU) h gh, n th s t me the sw tch ng board w ll acknowledge the d al clearly by
the occurance of the low mpedance.
10. EEPROM
U6 s the EEPROM.
Th s stores the dent f cat on code wh ch are nherent to pa r of base un t and handset
to safe guard aga nst nterference. It also stores telephone numbers for memory d al.
11. R s t circuit
Reset s appl ed by connect ng an external capac tor C70 and a d ode D7.
12. Sp ch n twork
R20, R21,C16, C17, and C18 are used for mpedance match ng between telephone
l ne and phone.
The res stors and capac tors connectors connected p n10, 16 of U1 are for s de tone
balance.

B. Bas RF S ction
Frequenc es
[ CT1 ]
RX VCO
Base un t : fVCO = (fRX - 21.7MHz) / 2 = 446.39375MHz (20CH)
Handset : fVCO = (fRX + 21.7MHz) / 2 = 490.59375MHz (20CH)
LOCA L
Base unt : fLOCAL = fRX - 21.7MHz = 892.7875MHz (20CH)
Handset : fLOCAL = fRX + 21.7MHz = 981.1875MHz (20CH)
TX VCO
Base unt : fTX 2 = 479.74375MHz (20CH)
Handset : fTX 2 = 457.24375MHz (20CH)
cf. Base un t : fRX = 914.4875MHz / fTX = 959.4875MHz (20CH)
Handset : fRX = 959.4875MHz / fTX = 914.4875MHz (20CH)
[ CT1+ ]
RX VCO
Base un t : fVCO = (fRX - 21.7MHz) / 2 = 432.14375MHz (40CH)
Handset : fVCO = (fRX + 21.7MHz) / 2 = 476.34375MHz (40CH)
LOCAL
Base un t : fLOCAL = fRX - 21.7MHz = 864.2875MHz (40CH)
Handset : fLOCAL = fRX + 21.7MHz = 952.6875MHz (40CH)
TX VCO
Base unt : fTX 2 = 465.49375MHz (40CH)
Handset : fTX 2 = 442.99375MHz (40CH)
cf. Base un t : fRX = 885.9875MHz / fTX = 930.9875MHz (40CH)
Handset : fRX = 930.9875MHz / fTX = 885.9875MHz (40CH)

1. RX VCO circuit
RX VCO c rcu t s conf gured by Q305, Q306, D302 (var cap d ode), L301 (a r co l), and
some add t onal pass ve parts.
The control voltage from p n 14 (charge pump out) of the U302 (PLL IC) s suppl ed to
the D302 cathode through pass ve loop f lter (C336, C337, C338, R329, R330, R331)
to control the osc llat on frequency.
L301 s used to adjust the osc llat on frequency band.
The osc llat on frequency of 450MHz band s gnal goes to p n 16 of U302 v a C345.
The osc llator output s doubled by Q305 (doubler) and fed nto Q303 (RX m xer).
2. TX VCO circuit
TX VCO c rcu t s conf gured by Q307, D303, L302 and some add t onal pass ve parts.
The control voltage from p n 3 (charge pump out) of the U302 s suppl ed to the D303
cathode through pass ve loop f lter (C353, C354, C355, R338, R339, R340) to control
the osc llat on frequency.
The modulat ng s gnal (MOD_AUDIO) s suppl ed to D303 anode.
L302 s used to adjust the osc llat on frequency band.
The osc llat on frequency of 450MHz band s gnal goes to p n 1 of U302 v a C363.
The doubled frequency of the 450MHz s taken out from the Q308 (doubler) collector
s de and fed to the transm ss on sect on of the next stage composed of Q309 (dr ver
amp) and Q310 (power amp).
The Q307 of VCO and Q308, Q309 s powered through the Q9 by the command of
VCO_CON of the CPU (p n 34).
Q310 s powered through the Q8 by the command of AMP_CON of CPU (p n 35).
3. PLL (phas lock d loop) S ction
U302 s a dual PLL IC wh ch has two PLL c rcu ts each one for the transm tter and
rece ver sect ons.
Frequency s gnal of 450MHz band from the VCO s suppl ed to p ns 1 (TX) and p n 16
(RX), and t s d v ded down to 6.25KHz n accordance w th the frequency d v s on rat o
ass gned by CPU .
Reference frequency 6.25KHz s made by d v d ng X301 (21.2503MHz) n accordance
w th reference frequency d v s on rat o ass gned by CPU.
Voltage of the frequency error comes from p n 3(TX), 14(RX) of U302 as a DC s gnal.
These voltage are suppl ed to D303 of the transm tter VCO and D302 of the rece ver
VCO and the VCO frequenc es are locked to 6,25KHz reference frequency.
The p n 6,7 and 8 of U302 are the ser al data nputs for the frequency d v der dec d ng
the d v s on rat o.

Carr er frequency s adjusted correctly by CV301.
4. R c iv r RF s ction
Modulated RF carr er from the antenna s f ltered by F306 and ampl f ed by Q304.
Ampl f ed s gnal s f ltered aga n by F307.
RF carr er and RX local osc llator output from Q305 are m xed at Q303 (1st m xer),
then the s gnal s converted nto the 21.7MHz (1st IF frequency).
After hav ng been restr cted to ±7.5KHz bandw dth by F302 (x-tal f lter) and ampl f ed
by Q302 (IF ampl f er), the s gnal s fed to p n 16 of U301 (IF IC).
The second local osc llator s gnal s suppl ed to p n 1 of U301 from p n 9 of U302.
Here, rece ved s gnal s converted nto the 450KHz (2nd IF frequency) after passed
through 2nd m xer n U301.
It s detected and appears at p n 9 of U301 as a demodulated aud o s gnal.
And th s demodulated s gnal s adjusted to max mum output level and m n mum
d stort on by T301 (quardrature co l).
Demodulated aud o s gnal s f ltered by low pass f lter composed of R301 and C301.
5. Transmitt r RF s ction
The modulated output carr er from TX VCO s frequency doubled to TX frequency by
Q308, and ampl f ed by Q309 and Q310, and transm tted to the antenna. The power s
10mw max. at the antenna term nal. The F305 prov des f lter ng so that spur ous
s gnal from the transm ss on s de cannot be rad ated to the antenna.
6. Squ lch circuit
When the RF s gnal doesn't ex st, the no se of p n 9 on the U301 ncreases then 6KHz
band pass f lter composed of op amp n U101 ( p n10, p n11 ) and some pass ve parts
p cks up the no se and the Q312 ampl f es t . The rect f er c rcu t composed of D301,
R308 and C313 rect f es the no se to DC voltage. When the rect f ed output voltage s
over 0.7V, p n 13 of U301 becomes low then CPU (p n32) knows that rece ved RF
s gnal s very weak or there s no RF s gnal.
When the RF s gnal ex sts, the no se of p n 9 on the U301 reduces. So the rect f ed
output voltage goes below 0.7V, then p n 13 of U301 becomes h gh. CPU knows that
RF s gnal ex st.

C. Hands t
1. Pow r control circuit
3.6V DC power s suppl ed from the battery through JP2.
U4 has 3 regulated outputs (VREG0, 1, 2) controlled by BS0, BS1 and BS2
respect vely.
In rece v ng mode, the BS0 (p n 23 of U5) becomes low, then the rece ver part of RF
block s suppl ed w th the power of 3.2V from VREG0 (p n 15 of U4).
In transm tt ng mode, the BS1 (p n 24 of U5) becomes low, then the transm tter part of
RF block s suppl ed w th the power of the 3.2V from VREG1 (p n 1 of U4).
On the other hand PLL, MSK data f lter(U3A, U3B), EEPROM, key pad, charge
detector, CPU reset c rcu t, low battery detector c rcu t and CPU are suppl ed w th the
power of the 3.2V from VREG2 (p n 5 of U4).
VREG2 always comes out 3.2V output on power ON mode.
U1 (speak ampl f er) and Q310 (f nal ampl f er TR of transm tter RF block) are suppl ed
from battery d rectly for good eff c ency. (V_BATT)
2. Low batt ry d t ctor circuit
When the battery voltage drops below 3.2V, p n 10 of U4 (BATT_LOW) s dr ven to
h gh, so p n 57 of CPU s set to h gh, and then CPU (p n 17, 25) send warn ng tone
command to BZ1 (buzzer).
3. R c iving audio signal from bas unit
Rece ved RF s gnal from base un t s detected n the RF block and the demodulated
aud o s gnal (DEMOD_AUDIO) s f ltered by low pass f lter composed of U3C, C13,
C14, C15, R7, R8 and R9 through C16. Th s aud o s gnal s f ltered aga n by h gh pass
f lter composed of op amp n U2, C9, C10, C11, R3, R4 and R5 then expanded n U2.
The expanded s gnal com ng from p n 19 of U2 s fed nto a speaker ampl f er U1 v a
C6 and R2. The fully ampl f ed aud o s gnal s sent to the loud speaker (SP1).
When the user set the handset volume LOW, VOL_CONT from p n27 of CPU (U5) s
h gh level then Q2 s sw tched on. So C5 s connected to GND and the aud o s gnal
from U2 s attenuated about 6dB
4. S nding audio signal to bas unit
The aud o s gnal p cked up by the m crophone (MI1) s fed nto p n8 of U2 (compandor).
Th s s gnal s ampl f ed and compressed for no se reduct on then goes through 3rd
order low pass f lter composed of op amp n U2, C18, C19, C20, R12, R13 and R14.
Th s s gnal s sent to the modulat on nput (MOD_AUDIO) of the RF block through C17,
R11 and RV2, and transm tted to the base un t.

5. S nding and R c iving of data signal
The send ng MSK data comes out from TX_DATA of CPU (p n 49), and enters nto p n
4 of U2(compandor).
It s modulated at RF block through the same path as aud o s gnal.
The rece ved MSK data wh ch s demodulated at RF block w th the same manner as
aud o s gnal s go ng to the low path f lter composed of U3B, C32, C33, C34, R30, R31
and R32. F ltered s gnal s comparated at U3A. The square wave (RX_DATA) from Q3
s fed to p n 48 of CPU.
6. R s t
When power sw tch (SW1) s pushed, p n 9 of U4 (RESET) s set from h gh to low.
Th s s gnal s used for CPU reset.
7. Pow r ON/OFF circuit
In case of sett ng power ON, f SW1 (power sw tch) s pushed, Q6 s ON then BS2
(p n12 of U4) becomes low level and VREG2 g ves 3.2V power. The CPU s suppl ed
w th th s power of 3.2V(VREG2) and set BS2_CONT (p n 37 of CPU) to h gh level.
Then Q7 s sw tched ON, so BS2 rema ns low level even after SW1 s released.
In case of sett ng power OFF, f SW1 s pushed, p n 10 of CPU (PWR_OFF) becomes
h gh level and CPU makes BS0, BS1 and BS2_CON open state then all power s off.
In case that handset s put on charger cradle of base un t, automat cally power
becomes ON because Q5 s ON.
8. Buzz r circuit
When the r ng s gnal command comes from the base un t or the key pad s pushed, the
buzzer control s gnal comes from RING_ON of CPU (p n 17) and t makes Q12 ON and
OFF, then the buzzer (BZ1) makes r ng or beep sound.
If the RING_LEVEL (p n 25 of U5) s set on h gh, then R42 s connected to R41 n
parallel and the sound w ll be loud.
And f the buzzer H/L s set on low, then the sound w ll be low.
9. Charg and d t ct circuit
If handset s cradled at base un t, the charge current s suppl ed from base un t through
the JP2 (charge contact). Charg ng current flows to the battery through D1.
At that t me the Q4 w ll be on and the CHARGE of CPU (p n 22) become low, then the
CPU acknowledges the cond t on of charg ng.

D. Handy RF Block S ction
The RF part of handset s same as base un t.

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
FOR M/P
BRF_4_2
C366 100P
C371 2P 1P
C374 NA 1P
REF
NA
8P 5PC809,C810
L301,L302 0.35*1.55*1.0+3.0R/NA 0.35*1.45*1.0+3.0R/NA
BRF_4_3
Q306 2SC5620 2SC4226
A
CT1 BASE UNIT RF
Custom
22Thursday, February 22, 2001
ROADSTAR CLT-700
CT1_VISION_BRF_4_3
T tle
S ze Document Number Rev
Date: Sheet of
DEMOD_AUDIO
VCC
PLL_STB
PLL_DATA
PLL_CLK
VCC VCC
VCC
VCC_AMP
VCC_VCO
RSSI_H/L
RSSI_DETECT
PLL_STB
PLL_DATA
PLL_CLK
DEMOD_AUDIO
MOD_AUDIO
MOD_AUDIO
VCC
VCC_VCO VCC_AMP
RSSI_DETECT
RSSI_H/L
C304
100N
C303
100N
R302
47K
R330
30K
R331
390K
R339
30K
R340
390K
R341
10K
R317
10R
C332
1U
C355
10N
R313
220K
R301
1K2
C353
33N
C365
100P
C366
NA
C369
100P
C325
100P
C305
47P
C302
1N
C301
10N
C363
1P
C354
470N(10%)
C370
1U
TP302
TP301
Q302
KTC3880Y
F302
21.7M
3 12
F301
450K
3 1
2
T301
13
C318
10U/10V(T)
+
R318
2K2
R337
10R
U302
TB31202FN
FIN1
1
VCC
2
CP1
3
GND
4
LD
5
CK
6
DATA
7
STB
8BO 9
XOUT 10
XIN 11
SW 12
GND 13
CP2 14
VCC 15
FIN2 16
C334
68P
C333
68P
C328
22P
C330
22P
C329
22P C345
1P
R319
22R
C315
10U/10V(T)
+
R315
10R
C317
100P
C314
1N
R324
10K
Q304
BFQ67
R345
47R
C362
8P
R343
10K
R342
300R
D303
KDV153
C357
100P
C331
22P
C335
33P
X301
21.25M(B rank)
CV301
10P
C349
2P
C348
NA
C351
1U
C352
100P
Q305
2SC 5620
Q306
2SC 4226
D302
KDV153
C359
5P
C360
2P
R347
33K R349 33K
C371
1P
R351
15K
Q310
BFQ67
R323
47R
C321
47N
R320
1K
C320
10N
R312
2K7
C336
22N
C337
470N(10%)
C340
5P
C341
2P(S2H)
C343
12P
C344
10P R336
100R
R335
47R
C350
2P
C373
100P
C372
7P
C368
2P
R344
10K
C361
5P
R346
220R
C358
1P5
C356
22P
R338
20K
C364
1P
R328 3K9
R327 3K9
R326 3K9
BASE MAIN301
1
2
3
4
5
6
7
8
9
10
R325
2K7
C324
3P
C323
NA
R321
47K
R333
910R
R334
8K2 C346
100P
Q303
BFQ67
C374
1P
R322
56K
C319
NA
C342
3P
R332
12K
Q309
BFQ67
Q307
BFQ67
U301
DBL5018V
(KA3361D)
OSC
1
OSC
2
MIX/O
3
VCC
4
LIM/I
5
DECPL
6
DECPL
7
QUAD
8AF 9
F/IN 10
F/O 11
SQ/I 12
SCAN 13
MUTE 14
GND 15
MIX/I 16
R314
680R
C316
2P
F307
SB- 2R-MD -914NL
G1
I/O 2
G3 G
5
I/O
6
G
7
G
4G8
C347
4P
C338
47N
R329
20K
C339
2P
L301
4T
R350
56R
R348
120R
C367
1P
Q308
BFQ67
L302
4T
C322
NA
C375
1U
C326
1N
C376
330P
J301
ANT301
F305
SB-2R-MD-959
G
1
I/O
2
G
3G5
I/O 6
G7
G
4G8
C377
3P
C379
NA
C327
NA
C378
NA
C810
5P
C809
5P
F306
SB- 2R-MD -914NL
G1
I/O 2
G3
G
5
I/O
6
G
7
G4 G
8
R311 470K
R310 47K (L)
C310
560P
R306
3K3
C813
560P
R624
1M
C312
100N C313
470N
R308
100KB
D301
KDS226
Q312
KTC4075Y
R626
5K6
R625
220K
R309 10K
R307
470K
C812
1N
C311
10P R631
24K

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
CTR37 & CTR38 FOR_M/P_ROADSTAR_2001-2
A
BASE MAIN
12
Fr day, March 23, 2001
ta_v s on_b4_2 R
ROADSTAR CLT-700
T tle
S ze Document Number Rev
Date: Sheet of
MOD_AUDIO
VCC
VCO_ CON
TX_DATA
CALL
TX_DATA
VCC
RSSI_DETECT
V_UNREG
VCC
VCC
PLL_CLK
PLL_STB
CT1/+
VCC
VCC_VCO
VCC
VCC
SCAN
LED_IN_USE LED_CHG
RING_SIGNAL
RX_DATA
RSSI_H/L
/EMUTE /CMUTE
CS
PLL_CLK
DTMF_DATA
PULSE_CON
TM_SW1 CS
VCC
RELAY_CON
EP_DO
V_UNREG
/EMUTE
VCC
PLL_DATA
LED_CHG PLL_STB
VCC
EP_CS
SCAN
VCC
VCC
VCC
VCC
VCC
PPD_CON
EP_DI
EP_SK
/CMUTE
LINE_DETECT
RING_SIGNAL
VCC
DO
VCC_VCO
AMP_CON
DTMF_BIAS
VCC
PLL_DATA
VCC
DEMOD_AUDIO
DTM F_ENABLE
CHARGE
VCC
VCC
RX_DATA
PLL_CLK
DO
RELAY_CON
TEL_MUTE
AMP_CON
PPD_CON
TM_SW0
RESET
TX_BIAS
MOD_AUDIO
DEMOD_AUDIO
VCC
CHARGE RSSI_DETECT
TM_SW3
VCC
RSSI_H/L
CT1/+
DTMF_CLK
TX_BIAS
CALL
LINE_DETECT
PLL_DATA
TEL_MUTETM_SW2
VCC_AM P
VCC_AMP
VCO_ CON
VCC
DTM F_ENABLE
DTMF_DATA
DTM F_CLK
DTMF_BIAS
LED_CHGLED_IN_USE
VCC
PULSE_CON
RV3
50KB
R59
33K
C73
NA
+
Q11
KTA1505Y
R90
10K
C70
2U2/35V(E)
+
R630
NA
Q313
KTC4374Y
R13
120K
R8
2K7
C22
100P
D5
1N4004
SG2
NA
SW1
CALL
(VISION)
Q4
MMBTA42
C46
10N
C45
1U
C59
1U
R98
10K
C38
33N
R79
100K
R32
12K
R7
470K
C17 47N
J7 0R(2012)
R17
560R
Q314
MMBTA42
C2
0R(2012)
C34
10N
R81
51K
R69
3K9
R67
100K
R102
680R
R39
10K
(CT1)
R54
24K
ADAPTOR1
R92 10K
R89
39K
LD6
RED
CHG
NA
J2 0R(2012)
C54
120P
C53
1N2
U10
DBL5015V
FO
1
FI 2
CO 3
DI 4
AGIC 5
CRC 6
CPI- 7
CPI+ 8
CB 9
GND 10
/CMUTE 11
BYPATH 12
/EMUTE 13
EB
14
EPI+
15
EPI-
16
DO
17
ERC
18
EO
19
VCC
20
U9
KIA 7805P
VI
GND
VO
TP7
R3
20K(AXIAL)
J8 NA
C15
220P
R21
390R
C1
470N/250V(ME)
C14
1N
C47
1N
R63
470K
C25
2N2
C78
220U/16V(E)
+
C79
470U/25V(E)
+
C61
100N
RF1
1
2
3
4
5
6
7
8
9
10
C28
1N
TP4
D7
LS4148
D6
LS4148
Q3
KTA1277Y
C20
100P
R11
220R
Q9
KRA105S
R103
2K
TP11
RV1
50KB
R60
220K
RV2
500B
C75
10N
JP3
POW ER
1
2
3
4
5
6
TP6
LD3
GRN
IN_USE
NA
U2
TCET1103K
D3
1N4004
Q1
KRC106S
LD5
YEL
PW R
(VISION)
R64
39K
C49
220P
C51
100N
TP9
C39
33N
R35
NA
(FS)
U4
TMP 87C807U-3A92
P73
1
P72
2
P71
3
P70
4
P07
5
P06
6
P05
7
P04
8
P03
9
P02
10
P01
11
P00 12
TEST 13
/RESET 14
XIN 15
XOUT 16
VSS 17
NC 18
P60 19
P14 33 P13 32 P12 31 P11 30 P10 29 P51 28 P50 27 P67 26 P66 25 P65 24 P64 23
P63 22
P62 21
P61 20
P15
34
P16
35
P17
36
P20
37
P21
38
P22
39
VDD
40
P77
41
P76
42
P75
43
P74
44
R5
1M
C10
10N
J9 NA
LS4148
D1
Q5
KTC3876Y
U1
DBL5021V
LN
1
GAS1 2 GAS2 3
QR
4
GAR
5
MIC-
6
MIC+
7
STAB 8
VEE 9
IR
10
DTMF 11
MUTE 12
VCC
13
REG 14
AGC 15
SLPE 16
C5
1N/100V(PE)
J302
NA
C24
560P
TP10
Q10
KTA1505Y
R57
39K
R55
100K
R78
6K8
R93 10K
R40
NA
(CT1+)
R33
30K
LD7
YEL
PW R
NA
R12
10K
J5 NA
J3 NA
C19
100U/16V(E)
+
R68
470K
TP3
TP8
CHG+1
U8D
DBL324V
-
+
13
12
14
R104
8R2(3216)
R31
10K
R87
10K
C9
100N
Q2
MMBTA42
R52
22K
R19
4K3
R80
NA
CHG-1
C42
180P
R100
68R(3225)
C43
2N2
C40
1U
R97
560R
1KR20
J6 0R(2012)
C12
100N(10%)
R9
10K
C68
20P
R65
39K
C36
1U
C71
100P
L4
27uH
Q12
KTA1505Y
C57
100N
SW2
(INNO)
NA
R62
10K
X1
3M58
U11
TCET1103K
DZ3
1N4744A
(15V/1W)
R15
150R
C18 100N(10%)
R14
2K2
DZ4
NA
R4
27K
R18
68K
C35
100N
C62
22N
R74
33K
R53
18K
U8C
DBL324V
-
+
9
10
8
D8
1N4004
R56
30K
R94 10K
R91
39K
LD4
RED
CHG
(VISION)
TEL-LINE1
STIT1+2M+US4/6
R26
3K3
R10
220R
C13
220N(10%)
Q8
KRA105S
R70
7K5
R623
10K
C27
10N
R88
39K
R629
560R
R2
15K(AXIAL)
R633
13R
R6
10K
RL1
HR93 DC09H
R23
39R
TP2
1
2
3
4
5
6
7
C69
20P
C50
10N
C60
100N
C37
33N
R58
39K
R71
7K5
R628
560R
U6
CSI93C46S
CS 1
SK 2
DI 3
DO 4 G
5
ORG
6
NC
7
VCC
8
C26
5N6
DZ1
0R(WIRE)
D4
1N4004
JP1
TEL-JACK
1
2
3
4
5
6
J1 0R(2012)
R66
39K
R101
10K
C41
5N6
C44
3N3
C74
100P
C76
100U/16V(E)
+
TP5
PCB1
R95
10K
SG1
ERZV07D331
R36
10K
(BS)
R22
39R
DZ2
0R(WIRE)
C6
1N/100V(PE)
R61
10K
R72
39K
R99
27K
R73
39K
C58
100N
LD2
GRN
IN_USE
(VISION)
J4 NA
D2
1N4004
C72
10N
C48
1N2
R30
10K
C52
5N6
C77
100N
C67
100N
C21
NA
R24
47K
R27
NA
R16
560R
C11
220N(10%)
C16 NA
R1
22K(AXIAL)
C23
10U/16V(E)
+
R25
NA
R632
5K1
D304
LS4148
U3
HT9200A-8DIP/SOP
/CE 1
X2 2
X1 3
VSS 4 CLK
5
DATA
6
DTMF
7
VDD
8
D305
LS4148
R34
22K
C80
10N
C81
10N
C82
10N
R638
0R C816
NA
L5
27uH
C814
10U/50V(E)
+
L1
NA
L2
27uH
L3
27uH
U8B
DBL324V
-
+
6
5
7
U8A
DBL324V
-
+
2
3
1
411
C63
1U
TP839

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
+
-
-
+
CTR37 & CTR38 FOR_M/P_ROADSTAR_2001_02
A
HANDSET MAIN - CT
12
ROADSTAR CLT-700
ct1_v s on_h 4_2R
Fr day, March 23, 2001
T tle
S ze Document Number Rev
Date: Sheet of
MOD_AUDIO
CHARGE
VREG2
BS0 BS1
V_BATT
VREG 2
VREG 2
BS2_CONT
VREG2
BYPATH
/EMUTE
/CMUTE
VREG2
AMP_CONT
BATT_LOW
VREG 1
VREG 2
RSSI_H/L
EP_DO
RSSI_H/L
VREG2
VREG 0
TX_BIAS
PLL_DATA
DEMOD_AUDIO
V_BATT
BS2_CONT
PW R_O FF
BATT_LOW
CT1/+
RX_DATA
PLL_STB
VREG1
TX_DATA
VREG 2
TX_DATA
CHARGE
RSSI_DETECT
VREG0
VREG 1
RESET
CT1/+
PLL_CLK
BS1
VREG 2
SPK_MUTE
BYPATH
RESET
RING_LEVEL
SCAN
DEMOD_AUDIO
RING_ON
V_BATT
VOL_CONT
VREG 2
/CMUTE /EMUTE
MOD_AUDIO
SCAN
VREG2
SPK_ON
PLL_CLK PLL_DATA
RSSI_DETECT
RX_DATA
EP_DO
PLL_STB
BS0
PW R_O FF
VCC_AMP
AGC
VCC
OPT
VCC
AGC
OPT
SPK_MUTE
SPK_ON
VOL_CONT
V_BATT
MIC_E
MIC_M
MIC_E MIC_M
C27
22N
C26
1U
R13
39K
R34
5K6
D1
LS4148
D2
LS4148
SW1
PW R SW
TP3
TP4 TP5
R21
0R
C8
1U
R20
3K9
BT1
R25
3K9
C32
1N2
R32
27K
R33
220K
Q3
KRC106S
R27
220K
R24
47K C33
2N2
C34
2N2
R30
27K
R31
27K
C10
33N
C11
33N
C9
33N
C14
180P
R7
39K
R8
39K
R9
33K
R36
39K
Q9
KTA1505Y
Q10
KTA1505Y
C5
10N
C6
10N
C19
1N8
R12
39K
R14
33K
C23
100N
TP6
CHG-1
CHG+1
RV1
50KB
R28
100K
R29
27K
C31
10N
R26
1M
C13
5N6
R5
24K
R4
100K
R3
18K
C18
4N7
U3C
DBL324V
-
+
9
10
8
U3B
DBL324V
-
+
6
5
7
U3A
DBL324V
-
+
2
3
1
411
U3D
DBL324V
-
+
13
12
14
P2
1
2
JP2
53014-0210
BATT
1
2
C15
2N2
C41
1U
C42
10U/10V(T)
+
C25
1U
R18
3K
C20
150P
C28
1N
R19
10K
C36
10U/10V(T)
+
R37
39K
C44
100N
C38
1U
C40
100P
C43
10U/10V(T)
+
C35
10N
R10
220K
C16
10N
Q6
KRC105S
C30
100N
R22
15K
C45
100N
Q8
KTA1505Y
U4
TA31086F
VREG1 1
TRB1 2
VCC 3
TRB2 4
VREG2 5
RST 6
TC 7
GND 8
/RST
9
ALARM
10
BS(A)
11
BS2
12
BS1
13
BS0
14
VREG0
15
TRB0
16
U2
DBL5015V
FO
1
FI 2
CO 3
DI 4
AGIC 5
CRC 6
CPI- 7
CPI+ 8
CB 9
GND 10
/CMUTE 11
BYPATH 12
/EMUTE 13
EB
14
EPI+
15
EPI-
16
DO
17
ERC
18
EO
19
VCC
20
Q2
KRC106S
TP2
C24
1U
Q4
KRC106S
Q7
KRC105S
Q5
KRC105S
C7
100N
R35
39K
R6
10K
R44 100K
K14
8
Q12
KTN 2907S
R39
20R
R55
10K
(CT1)
C49
10N
R23
10K
Q11
KRA105S
R53
NA
(FS)
R54
10K
(BS)
C12
1U
K13
7
C37
100N
K19
#
K15
9
K5
1
R46 100K
R50
10K
TP7
R45 100K
K9
4
R41
68R
K8
PGM/CALL TRANS
C47
20P
C46
20P
C51
100N
R40
2K
C48
100P
C50
100N
Q13
KTN2222S
K6
2
K10
5
K17
*
RF1
1
2
3
4
5
6
7
8
9
10
11
K11
6
R48
10K
R38
10K
R43
2K
LCD1
LCD
COM0 30 COM1 29
C0M2 28
COM3 27
S0 26 S1 25 S2 24 S3 23 S4 22 S5 21 S6 20 S7 19 S8 18 S9 17
S10 16 S11 15 S12 14 S13 13 S14 12 S15 11 S16 10 S17 9 S18 8 S19 7 S20 6 S21 5 S22 4 S23 3 S24 2 S25 1
K7
3
R42
20R
R47 100K
K16
VOL
U5
TMP87CH20F-3A91
SEG3
1
SEG2
2
SEG1
3
SEG0
4
COM3
5
COM2
6
COM1
7
COM0
8
VLC
9
P21
10
P22
11
RESET
12
XIN
13
XOUT
14
VSS
15
P20
16
P30
17
P31
18
P32
19
P33
20
P34
21
P35
22
P36
23
P37
24
P00 25 P01 26 P02 27 P03 28 P04 29 P05 30 P06 31 P07 32
VDD 33
P10 34 P11 35 P12 36 P13 37 P14 38 P15 39 P16 40
P17 41
P40 42
P41 43
P42 44
P43 45
P44 46
P45 47
P46 48
P47 49
P50 50
P51 51
TEST 52
SEG31 53
SEG30 54
SEG29 55
SEG28 56
SEG27 57
SEG26 58
SEG25 59
SEG24 60
SEG23 61
SEG22 62
SEG21 63
SEG20 64
SEG19
65
SEG18
66
SEG17
67
SEG16
68
SEG15
69
SEG14
70
SEG13
71
SEG12
72
SEG11
73
SEG10
74
SEG9
75
SEG8
76
SEG7
77
SEG6
78
SEG5
79
SEG4
80
R56
NA
(CT1+)
BZ1
MSG1216
X1
3M58
R49
4K7
U6
CSI93C46S
CS
1
SK
2
DI
3
DO
4G5
ORG 6
NC 7
VCC 8
K2
RECALL
K3
MUTE
K12
REDIAL
K4
MEMORY
C39
100N
K1
T/E
K18
0
RV3
500B
PCB1
R64
10K
(DI SABLE)
R63
NA
(ENABLE)
R62
NA
R61
NA
Q1
KRA105S
TP1 U1
NJM2113M,(E)
CD 1
VREF 2
+VIN 3
-VIN 4 VO1
5
V+
6
GND
7
VO2
8
C3
100N
C4
1U
JP1
53014-0210
1
2
R2
51K
SP1
U2815032
P1
VSR24
1
2
C1
1U
C2
100P
R1
100K
H83
NA
C29
10N
MI1
CMP-4542
1 2
R352
0R
R353
NA
R354
NA
C811
NA
C808
10N
RV2
50KB
C17
100N
R11
22K
R627
0R
C21
0R(2012)
+

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
FOR M/P
C337 220N(10%)
C340 4P 5P
C372 6P 4P
REF HRF_4_1 HRF_4_2
470N(10%)
R329
8P 3P
20K 15K
C809,C810
L301,L302 0.35*1.55*1.0+3.0R/NA 0.35*1.45*1.0+3.0R/NA
A
CT1 HANDSET RF
22
Thursday, February 22, 2001
ROADSTAR CLT-700
CT1_VISION_HRF_4_2
T tle
S ze Document Number Rev
Date: Sheet of
DEMOD_AUDIO
VREG 0
PLL_STB
PLL_DATA
PLL_CLK
VREG2 VREG 2
MOD_AUDIO
VREG 0
VREG1 VCC_AMP
VCC_AMP
VREG0
VREG1
VREG2
RSSI_DETECT
RSSI_H/L
PLL_STB
PLL_DATA
PLL_CLK
DEMOD_AUDIO
MOD_AUDIO
RSSI_DETECT
RSSI_H/L
C304
100N
C303
100N
R302
47K
R330
30K
R331
390K
R339
30K
R340
390K
R341
10K
R317
10R
C355
10N
R313
220K
C353
33N
C369
100P
C305
47P
C302
1N
C363
1P
C375
1U
TP302
TP301
Q302
KTC3880Y
F302
21.7M
3 12
F301
450K
3 1
2
T301
13
R318
2K2
R337
10R
U302
TB31202FN
FIN1
1
VCC
2
CP1
3
GND
4
LD
5
CK
6
DATA
7
STB
8BO 9
XOUT 10
XIN 11
SW 12
GND 13
CP2 14
VCC 15
FIN2 16
C334
68P
C333
68P
C328
22P
C330
22P
C329
22P C345
1P
R319
22R
R315
10R
C317
100P
C314
1N
R324
10K
C326
1N
Q304
BFQ67
C376
270P
R345
39R
C362
8P
R343
10K
D303
KDV153
C357
100P
C335
33P
X301
21.25M(B rank)
CV301
10P
J301
C349
2P
C348
NA
C351
1U
C352
100P
Q305
2SC 5620
Q306
BFQ67
D302
KDV153
C359
5P
C360
2P
R347
20K R349 27K
R351
20K
Q310
2SC 4226
R323
22R
C321
33N
R320
2K2
C320
6N8
R312
3K3
C336
33N
C340
5P
C341
2P
C343
4P
C344
10P R336
100R
R335
10R
C350
2P
C372
4P
C368
3P
R344
9K1
C361
5P
R346
100R
C358
2P
C356
NA
R338
12K
C364
1P
R328 3K9
R327 3K9
R326 3K9
ANT301
C324
1P
R321
27K
R333
1K
R334
8K2
Q303
2SC 4226
C322
3P
R322
62K
C342
4P
R332
10K
Q309
BFQ67
Q307
BFQ67
R314
330R
C316
2P
C338
10N
R329
15K
C339
2P
L301
4T
R350
47R
R348
33R
C367
2P
Q308
BFQ67
L302
4T
HANDSET MAIN301
1
2
3
4
5
6
7
8
9
10
11
C377
5P
C379
NA
C327
NA
C378
NA
C810
3P
C809
3P
F306
SB-2R-MD-959
G1
I/O 2
G3
G
5
I/O
6
G
7
G4 G
8
C337
470N(10%)
F307
SB-2R-MD-959
G1
I/O 2
G3 G
5
I/O
6
G
7
G
4G8
C371
NA
C323
7P
C331
22P
C332
1U
C373
1N
R342
300R
F305
SB- 2R-MD-914NL
G
1
I/O
2
G
3G5
I/O 6
G7
G
4G8
R311 470K
R310 75K (L)
R309 10K
U301
DBL5018V
(KA3361D)
OSC
1
OSC
2
MIX/O
3
VCC
4
LIM/I
5
DECPL
6
DECPL
7
QUAD
8AF 9
F/IN 10
F/O 11
SQ/I 12
SCAN 13
MUTE 14
GND 15
MIX/I 16
C812
10N
R306
3K3
C310
560P
C365
100P
R301
1K2
C374
NA
C354
470N(10%)
C318
10U/10V(T)
+
C311
10P
R625
560K
Q312
KTC4075Y
R307
470K
C813
220P
C366
100P
R631
4K7
C312
100N
R626
4K7
D301
KDS226
R308
100KB
C313
470N
C301
10N
C347
3P
C315
10U/10V(T)
+
R325
4K7
C346
100P
C319
5P
R624
1M
C370
1U
C325
100P

6. ELECTRICAL PARTS LIST
VISION BASE MAIN - ITALY Revised: Friday, March 23, 2 1
Item Part Quantity Reference
1 SA41-4 3-3B 1 ADAPTOR1
2 NA 37 RF1,L1,CHG-1,CHG+1,TP2,
SW2,SG2,TP3,LD3,J3,TP4,
J4,DZ4,TP5,J5,TP6,LD6,
TP7,LD7,TP8,J8,TP9,J9,
TP1 ,TP11,C16,C21,R25,
R27,R35,R4 ,C73,R8 ,J3 2,
R63 ,C816,TP839
3 47 N/25 V(ME) 1 C1
4 R(2 12) 5 J1,J2,C2,J6,J7
5 1N/1 V(PE) 2 C5,C6
6 1 N 9 C9,C35,C51,C57,C58,C6 ,
C61,C67,C77
7 1 N 1 C1 ,C27,C34,C46,C5 ,C72,
C75,C8 ,C81,C82
8 22 N(1 %) 2 C13,C11
9 1 N(1 %) 2 C12,C18
1 1N 3 C14,C28,C47
11 22 P 2 C15,C49
12 47N 1 C17
13 1 U/16V(E) 2 C19,C76
14 1 P 4 C2 ,C22,C71,C74
15 1 U/16V(E) 1 C23
16 56 P 1 C24
17 2N2 2 C25,C43
18 5N6 3 C26,C41,C52
19 1U 5 C36,C4 ,C45,C59,C63
2 33N 3 C37,C38,C39
21 18 P 1 C42
22 3N3 1 C44
23 1N2 2 C53,C48
24 12 P 1 C54
25 22N 1 C62
26 2 P 2 C68,C69
27 2U2/35V(E) 1 C7
28 22 U/16V(E) 1 C78
29 47 U/25V(E) 1 C79
3 1 U/5 V(E) 1 C814
31 R(WIRE) 2 DZ1,DZ2
32 1N4744A 1 DZ3
33 LS4148 5 D1,D6,D7,D3 4,D3 5
34 1N4 4 5 D2,D3,D4,D5,D8