Sony ZS-BTY50 / ZS-BTY52 / ZS-BTY55 Service Manual ▷ View online
ZS-BTY50/BTY52/BTY55
33
SECTION 3
TEST MODE
COLD RESET
System micom is reset and EEPROM is cleared.
System micom is reset and EEPROM is cleared.
Procedure:
1. In the standby status, press the [POWER] (Except AEP, East
1. In the standby status, press the [POWER] (Except AEP, East
European and UK models)/[OPERATE] (AEP, East European
and UK models) button to turn the power on.
and UK models) button to turn the power on.
2. Press three buttons of [POWER] (Except AEP, East European
and UK models)/[OPERATE] (AEP, East European and UK
models), [ENTER
models), [ENTER
u
] and [MEGA BASS] simultaneously.
3. The message “RESET” appears on the liquid crystal display,
the set enters standby status.
PANEL TEST
It can perform all segments on the liquid crystal display light-up,
fi rmware version display and destination display.
It can perform all segments on the liquid crystal display light-up,
fi rmware version display and destination display.
Enter the panel test mode
Procedure:
1. In the standby status, press the [POWER] (Except AEP, East
Procedure:
1. In the standby status, press the [POWER] (Except AEP, East
European and UK models)/[OPERATE] (AEP, East European
and UK models) button to turn the power on.
and UK models) button to turn the power on.
2. Press three buttons of [AUDIO IN], [
/TUNE –] and [MEGA
BASS] simultaneously.
3. When the panel test mode is activated, segments of the liquid
crystal display are all turned on.
Version, model and destination check
Procedure:
1. In the panel test mode (segments of the liquid crystal dis-
Procedure:
1. In the panel test mode (segments of the liquid crystal dis-
play are all turned on), press the [
PRESET SETTING AM]
(BTY50)/[
PRESET SETTING RADIO FM/AM] (BTY52/
BTY55) button.
2. On the liquid crystal display, system version is displayed.
Example:
Example:
V
0001
3. Press the [
MEMORY SELECT USB] button, and the DSP
(USB host) version is displayed. (BTY52/BTY55 only)
Example: U 001
4. Press
the
[
PAIRING BLUETOOTH] button, and the Blue-
tooth module fi rmware version is displayed.
Example: B 0001
5. Press the [AUDIO IN] button, and the model and destination
are displayed.
Example: 34 U2CA2
6. To release from this mode, press three buttons of [AUDIO IN],
[
/TUNE –] and [MEGA BASS] simultaneously.
FM TUNER STEP CHANGE
(230V AC area in E and Singapore models only)
The FM tuning interval can be changed over 50 kHz or 100 kHz.
(230V AC area in E and Singapore models only)
The FM tuning interval can be changed over 50 kHz or 100 kHz.
Procedure:
1. In the standby status, press the [POWER] button to turn the
1. In the standby status, press the [POWER] button to turn the
power on.
2. Press the [
PRESET SETTING RADIO FM/AM] button,
change to FM radio function.
3. Press and hold the [
PRESET SETTING RADIO FM/AM]
button, the message “AUTO” appears on the liquid crystal dis-
play (The display is blink).
play (The display is blink).
4. Press the [PRESET –
.
] or [PRESET +
>
] buttons,
change to the display of “MANUAL” (The display is blink).
5. Press the [ENTER
u
] button, change to the display of
“MANUAL P”.
6. Press and hold the [
PRESET SETTING RADIO FM/AM]
button, the message “FM 50K” or “FM 100K” appears on the
liquid crystal display (The step at present setting is displayed).
liquid crystal display (The step at present setting is displayed).
7. Press the [PRESET –
.
] or [PRESET +
>
] buttons, select
to the “FM 50K” or “FM 100K”.
8. Press
the
[ENTER
u
] button, it is changed into selected set-
ting.
Press other than [ENTER
u
] button, will cancel this mode.
AM TUNER STEP CHANGE
(230V AC area in E and Singapore models only)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
(230V AC area in E and Singapore models only)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. In the standby status, press the [POWER] button to turn the
1. In the standby status, press the [POWER] button to turn the
power on.
2. Press the [
PRESET SETTING RADIO FM/AM] button,
change to AM radio function.
3. Press and hold the [
PRESET SETTING RADIO FM/AM]
button, the message “AUTO” appears on the liquid crystal dis-
play (The display is blink).
play (The display is blink).
4. Press the [PRESET –
.
] or [PRESET +
>
] buttons,
change to the display of “MANUAL” (The display is blink).
5. Press the [ENTER
u
] button, change to the display of
“MANUAL P”.
6. Press and hold the [
PRESET SETTING RADIO FM/AM]
button, the message “AM 9K” or “AM 10K” appears on the
liquid crystal display (The step at present setting is displayed).
liquid crystal display (The step at present setting is displayed).
7. Press the [PRESET –
.
] or [PRESET +
>
] buttons, select
to the “AM 9K” or “AM 10K”.
8. Press
the
[ENTER
u
] button, it is changed into selected set-
ting.
Press other than [ENTER
u
] button, will cancel this mode.
Ver. 1.2
ZS-BTY50/BTY52/BTY55
34
Bluetooth INFORMATION INITIALIZE
Bluetooth information is initialized.
Bluetooth information is initialized.
Procedure:
1. In the standby status, press the [POWER] (Except AEP, East
1. In the standby status, press the [POWER] (Except AEP, East
European and UK models)/[OPERATE] (AEP, East European
and UK models) button to turn the power on.
and UK models) button to turn the power on.
2. Press
the
[
PAIRING BLUETOOTH] button, change to Blue-
tooth function.
3. Press three buttons of [FM MONO] (BTY50)/[PLAY MODE/
FM MONO] (BTY52/BTY55), [ DISPLAY
LIGHT SYNC]
and [
/TUNE –] simultaneously.
4. The message “BT RESET” appears on the liquid crystal dis-
play.
5. Press the [ENTER
u
] button, and the message “BT RESET”
is blink.
6. The message “COMPLETE” appears and initialization is per-
formed, and release from this mode.
7. To release from this mode, press three buttons of [FM MONO]
(BTY50)/[PLAY MODE/FM MONO] (BTY52/BTY55), [
DISPLAY
DISPLAY
LIGHT SYNC] and [
/TUNE –] simultaneously,
or do not perform operation for 10 seconds.
Ver. 1.1
EUP TEST
(AEP, East European and UK models only)
The EUP audio signal detection check.
Confi rm EUP test with reference to the following fl ow.
(AEP, East European and UK models only)
The EUP audio signal detection check.
Confi rm EUP test with reference to the following fl ow.
Procedure:
1 In the standby status, press the [OPERATE] button to turn the
1 In the standby status, press the [OPERATE] button to turn the
power on.
2 Press three buttons of [AUDIO IN], [
/TUNE –] and [PRE-
SET + >] simultaneously.
3 When an audio signal is inputted into IC801 (pin
ij), “EUP H”
is displayed on the liquid crystal display.
When an audio signal is not inputted into IC801 (pin
ij), “EUP
L” is displayed on a liquid crystal display.
4 To release from this mode, press three buttons of [AUDIO IN],
[
/TUNE –] and [PRESET + >] simultaneously, or it will
become standby mode if operation is not performed for 10 sec-
onds in the state of “EUP L”.
onds in the state of “EUP L”.
EUP test fl ow:
Yes
Yes
No
No
Count reset of timeout
for 10 seconds
for 10 seconds
IC801 (87pin
ERP_DET) is “L”
ERP_DET) is “L”
“EUP L” is displayed
State of “EUP L” is
10 seconds progress
10 seconds progress
Standby mode
“EUP H” is displayed
EUP test start
ZS-BTY50/BTY52/BTY55
ZS-BTY50/BTY52/BTY55
35
35
SECTION 4
ELECTRICAL CHECKS
TUNER SECTION 0 dB = 1 V
[AM]
Setting:
Function: RADIO
Band: AM
Setting:
Function: RADIO
Band: AM
[FM]
Setting:
Function: RADIO
Band: FM
Setting:
Function: RADIO
Band: FM
Note: Perform FM frequency coverage check after removing FM tele-
scopic antenna (ANT1).
no mark: US, CND, E92, MX models
( ): AEP, EE, UK, E41, SP, TW, TH, AUS models
AM FREQUENCY COVERAGE CHECK
Check that reading on level meter is the maximum
Confi rmation
530 (531) kHz
Confi rmation
1,710 (1,602) kHz
FM FREQUENCY COVERAGE CHECK
Check that reading on level meter is the maximum
Confi rmation
87.5 MHz
Confi rmation
108 MHz
• Abbreviation
AUS :
AUS :
Australian
model
CND : Canadian model
E41
E41
: 230V AC area in E model
E92
: 120V AC area in E model
EE
: East European model
MX
: Mexican model
SP
: Singapore model
TH :
Thai
model
TW :
Taiwan
model
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible
Put the lead-wire
antenna close to
the unit.
JACK board
i
jack (J351)
+
í
í
level meter
32
:
ZS-BTY50
ZS-BTY52
ZS-BTY55
FM RF signal
generator
75 kHz frequency
deviation by
1 kHz signal
Output level:
as low as possible
JACK board
i
jack (J351)
ZS-BTY50
ZS-BTY52
ZS-BTY55
0.01
PF
+
í
í
level meter
TUNER board
CL002 (GND)
32
:
TUNER board
CL001
Ver. 1.2
ZS-BTY50/BTY52/BTY55
ZS-BTY50/BTY52/BTY55
36
36
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAM - AUDIO Section -
BT1
Bluetooth MODULE
LCH-P
LCH-N
RCH-P
RCH-N
UART_TX
UART_RX
UART_CTS
UART_RTS
RESET
MUTE
SYSTEM CONTROLLER
IC801 (1/2)
LINE AMP
IC303
R-CH
R-CH
R-CH
FM/AM RECEIVER
IC001
23
ROUT
24
LOUT
19
X001
32.768kHz
RCLK
3
GPO3/
DCLK
R-CH
ANT1
FM TELESCOPIC
ANTENNA
L100
AM FERRITE-ROD
ANTENNA
8 FMI
12 AMI
18
SDIO
17
SCLK
15
RST
4
DACOUTL
5
DACOUTR
D+
D–
54
SIFDO
UDP1
53
69
UDM1
68
75
SIFDI
52
SIFCK
55
SIFCE
56
BUSYB
57
GP03
61
GP43
51
RESB
USB CONTROLLER
IC401
CN591
3
2
XOUT
74
XIN
X401
12MHz
R-CH
INPUT SELECTOR,
ELECTRICAL VOLUME
IC304
13 INL1
12 INL2
11 INL3
10 INL4
19 SDA
18 SCL
18 SCL
15 REFIN
R-CH
J352
AUDIO IN
R-CH
R-CH
POWER AMP
IC306
R-CH
J351
i
SP1
(L-CH)
SP2
(R-CH)
31
LOUT
21
IGOUTL
22
VOLINL
23
IGOUTR
24
VOLINR
76 BT_RX
75 BT_TX
83 BT_RTS
82 BT_CTS
73 BT_MUTE
84 BT_RESET
75 BT_TX
83 BT_RTS
82 BT_CTS
73 BT_MUTE
84 BT_RESET
45 TU_SDA
46 TU_SCL
47 TU_RESET
46 TU_SCL
47 TU_RESET
20 SDI
22 SDO
21 SCK
19 CE
17 BUSY
24 CMD_ERR
23 USB_IN
18 SYSRST
22 SDO
21 SCK
19 CE
17 BUSY
24 CMD_ERR
23 USB_IN
18 SYSRST
28
VOL_SDA
27
VOL_SCL
70
SYS_EN
68
AU_LEVEL_DET
56
A_MUTE
26
BEEP
33
EEPROM DATA
34
EEPROM CLK
13
X802
10MHz
OSCIN
4
SHIFT2
11
OSCOUT
Q803, 804
CLOCK SHIFT
3
SHIFT1
Q804
Q803
AUDIO LEVEL
DETECT
IC305
Q301
Q302
EEPROM
IC804
5 SDA
6 SCL
6 SCL
: AUDIO IN
: Bluetooth
: FM
: AM
SIGNAL PATH
R-ch is omitted due to same as L-ch.
: USB
(BTY52/BTY55)
(BTY52/BTY55)
(AEP, East European, UK)
MUTING
Q104
A
STBY, SYS_EN
STBY
SYS_EN
+
87
ERP_DET
ERP
DETECT
IC301
SWITCHING
Q805, 806
Ver. 1.1
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