Sony DWT-B30, Service Manual

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4-1 (E)
DWT-B30
4-1. Preparation
4-1-1. Required Equipment
Name Specification Model name
Spectrum analyzer Frequency: 10 kHz to 4 GHz Advantest R3371B or equivalent
Power meter Range: 3 μ W to 100 mW HP435B (
+
Power sensor HP8482A) or
equivalent
Frequency counter Frequency: 10 Hz to 1000 MHz
Number of significant figures:
10-digit
Resolution: 0.1 Hz HP5385A or equivalent
Bit error rate meter Measurement range: 1
x
10
_
6
Measurement signal: PN9
KIKUSUI KBM6010 or equivalent
Audio analyzer Analog input
Frequency range: 20 Hz to 100 kHz
AES/EBU input Audio Precision System2 or equivalent
DC constant voltage power 0 to 5 V, 1A
_
Current: 1 ADC
DC ammeter 500 mA or more
_
Multimeter
_ _
4-1-2. Tool List
Name Part number Remarks
Coaxial connector removal tool J-7121-750-A
_
RF adjustment cable J-6402-390-A SMA-BNC conversion cable
Audio measurement cable 1-912-781-11 Used mainly for CE destination (LEMO
connector)
Cord with XLR connector 1-835-345-11 Used mainly for UC, CN and J destinations
(HRS connector)
Coaxial conversion connector (SMA-HSC) 1-842-449-11 RF signal measurement
Sony DWR-R02DN or DWR-R03D that works
properly
_
This unit supporting each destination
Sony ECM-77LM that works properly
_
Used mainly for CE destination (LEMO
connector)
Sony ECM-77BC/9X that works properly
_
Used mainly for UC, CN and J destinations
(HRS connector)
DU-510 board A-1774-690-A Used for BER measurement
Whip antenna 1-754-575-12 For checking spectrum analyzer transmis-
sion power
LRT driver J-6402-350-A
_
SMA antenna mounting tool J-7121-660-A
_
Bit (LEMO) tool (for mounting LEMO nut) J-7121-650-A
_
Bit (3ULR-F) tool (for mounting special head
screw) J-7121-640-A Used only for B (J) destination
Section 4
Electrical Alignment