Technics SH-CH900 Service Manual

O R D E R NO. AD9111262C2
Service Manual
Sound Processor
SB-CH900
• c
DOLBY SURROUIMD
P R O • L O G I C
S B - C H 9 0 0 -
Remote
Control Transmitter
Because of unique interconnecting cables,
when a component requires service, send or
bring in the entire system.
SPECIFICATIONS
• P R E AMP. S E C T I O N
Input sensltivity and impedance
PHONO 2.5 mV/47 kQ
V C R / V D P (Input with PHONO PIN) 250 mV/18 kQ
Total harmonie distortion
1 k H z , - 3 d B output 0.08%
• D O L B Y P R O - L O G I C , E Q U A L I Z E R , SOUND F I E L D
P R O C E S S O R S E C T I O N
Dolby surround
Mode
Delay time
Tone control B a s s
Treble
Equalizer
Center frequency
LOW
HIGH1,2
N O R M A L , W I D E , P H A N T O M ,
3 S T E R E O
1 5 - 3 0 m s e c .
± 1 0 d B
± 1 0 d B
31.5, 40, 50, 63,
8 0 , 1 0 0 , 1 2 5 , 1 8 0 , 220 (Hz)
3 1 5 , 4 5 0 , 6 3 0 , 800,
1 k, 1.25 k, 1.6 k, 2.2 k, 3.15 k,
4.5 k, 6.3 k, 8 k, 10 k, 12.5 k, 16 k (Hz)
Level control LOW, HIGH1, 2 ± 1 2 dB
(Q) control Narrow 1.8
Wide - m s v
Fixed mode
Equalizer (6 modes) H E A V Y , C L E A R , S O F T , V O C A L
H E A D P H O N E S T E R E O , C A R S T E R E O
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T e l . : 0 7 3 - 2 1 8 3 4 4
A
Sound Processor
SH-CH900
Color
(K)
Black Type
rea
ai ar
Country
Code
Area
Color
Continental Europa.
Great Britain.
Germany and Italy.
(E)
Asia, Latin America,
(K)
Middle Near East and
Africa.
Oceania.
System: SC-CH900
Sound Field Processor (6 modes)
HALL, L I V E , D I S C O , C H U R C H
S T A D I U M , T H E A T E R
Frequency r e s p o n s e
PHONO
T U N E R , T A P E , V C R
C D , DAT, VDP
S/N
PHONO
T U N E R , T A P E , V C R
C D , DAT, VDP
Key control
MIc echo
Video output
MONITOR
V C R R E C OUT
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• G E N E R A L
D l m e n s l o n s ( W x H x D ) H ' "
Welght
RIAA S T A N D A R D C U R V E
(30 H z - 1 5 k H z ) + 1 . 0 , - 1 . 5 dB
1 5 H Z - 2 0 k H z , - 1 dB
1 5 H Z - 2 0 k H z , - 1 dB
64 dB (DIN)
85 dB (IHF, at full scale input, IHF A)
71 dB (DIN)
90 dB (IHF, at full scale input, IHF A)
93 dB
- 3 0 0 - + 3 0 0 cent
0 . 2 - 1 . 6 s e c
1 Vpp/75n
1 Vpp/75n
2 3 0 x 8 3 x 2 9 2 mm
1.95 kg
Notes:
1. Specitications are subject to change without notlce.
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2. Weight and dimensions shown are approximate.
3. Total harmonie distortion is measured by the digital spectrum
analyzer.
System Tuner/CD player Sound Processor
Amplifier
Cassette Deck Speal<ers
SC-CH900 SL-CH900 SH-CH900 SU-CH900 RS-CH900
'SB-CH900
T e c l m i c s
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